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#1 2019-12-18 14:22:27

Jack_CM
Member
Registered: 2012-02-10
Posts: 55

DisplayPort DaisyChain NVIDIA problem on the second monitor

Hello guys,

Premises: I have the following set-up:
A workstation with Arch very recently installed on it (more details on the hardware later) and a laptop (WIN10 on it) connected to a docking station, and two monitors DELL U2715H, capable of daisy-chaining. I am connecting the Workstation from the display port of the GPU to the first monitor normal-sized display port and the laptop dock-station to the first monitor mini display port. The second monitor is connected to the first one.

In my daily routine I often need to switch between these two machines, therefore I often manually switch the source of the first monitor from DisplayPort to miniDisplyPort (I have also a 2 port USB sharing device, but this is beyond the scope).

The problem: No matter what I try with the current driver, but the second monitor does not turn on.

Some info:

$ glxinfo -B
name of display: :1
display: :1  screen: 0
direct rendering: Yes
Memory info (GL_NVX_gpu_memory_info):
    Dedicated video memory: 2048 MB
    Total available memory: 2048 MB
    Currently available dedicated video memory: 1528 MB
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: Quadro K620/PCIe/SSE2
OpenGL core profile version string: 4.6.0 NVIDIA 440.44
OpenGL core profile shading language version string: 4.60 NVIDIA
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 4.6.0 NVIDIA 440.44
OpenGL shading language version string: 4.60 NVIDIA
OpenGL context flags: (none)
OpenGL profile mask: (none)

OpenGL ES profile version string: OpenGL ES 3.2 NVIDIA 440.44
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
$ glxinfo32 -B
name of display: :1
display: :1  screen: 0
direct rendering: Yes
Memory info (GL_NVX_gpu_memory_info):
    Dedicated video memory: 2048 MB
    Total available memory: 2048 MB
    Currently available dedicated video memory: 1528 MB
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: Quadro K620/PCIe/SSE2
OpenGL core profile version string: 4.6.0 NVIDIA 440.44
OpenGL core profile shading language version string: 4.60 NVIDIA
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 4.6.0 NVIDIA 440.44
OpenGL shading language version string: 4.60 NVIDIA
OpenGL context flags: (none)
OpenGL profile mask: (none)

OpenGL ES profile version string: OpenGL ES 3.2 NVIDIA 440.44
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation GM107GL [Quadro K620] (rev a2)
$ cat /etc/modprobe.d/blacklist.conf
install i915 /usr/bin/false
install intel_agp /usr/bin/false
install viafb /usr/bin/false
$ cat /usr/lib/modprobe.d/nvidia-dkms.conf
blacklist nouveau
$ xrandr
Screen 0: minimum 8 x 8, current 5120 x 1440, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DP-1.8 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
   2560x1440     59.95*+
   2048x1152     60.00  
   1920x1200     59.88  
   1920x1080     60.00    59.94    50.00    29.97    25.00    23.98  
   1680x1050     59.95  
   1600x1200     60.00  
   1280x1024     75.02    60.02  
   1280x720      60.00    59.94    50.00  
   1200x960      59.90  
   1152x864      75.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    59.94    59.93  
DP-1.1.8 connected 2560x1440+2560+0 (normal left inverted right x axis y axis) 597mm x 336mm
   2560x1440     59.95*+
   2048x1152     60.00  
   1920x1200     59.88  
   1920x1080     60.00    59.94    50.00    29.97    25.00    23.98  
   1680x1050     59.95  
   1600x1200     60.00  
   1280x1024     75.02    60.02  
   1280x720      60.00    59.94    50.00  
   1200x960      59.90  
   1152x864      75.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    59.94    59.93  
DVI-I-1 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
$ pacman -Q |  egrep "nvidia|^linux"
lib32-nvidia-utils 440.44-1
linux 5.4.3.arch1-1
linux-api-headers 5.3.1-2
linux-firmware 20191215.eefb5f7-1
linux-headers 5.4.3.arch1-1
linux-lts 4.19.89-1
linux-lts-headers 4.19.89-1
nvidia-dkms 440.44-2
nvidia-settings 440.44-1
nvidia-utils 440.44-1
$ ls /etc/X11/xorg.conf.d
00-keyboard.conf  10-monitor.conf  20-nvidia.conf
$ cat 10-monitor.conf 
Section "Monitor"
    Identifier  "DP-1.8"
    Option	"HardDPMS" "false"
    Option      "Primary" "true"
EndSection

Section "Monitor"
    Identifier  "DP-1.1.8"
    Option      "RightOf" "DP-1.8"
    Option	"HardDPMS" "false"
EndSection
$ cat 20-nvidia.conf 
Section "Device"
        Identifier "Nvidia Card"
        Driver "nvidia"
        VendorName "NVIDIA Corporation"
        BoardName "Quadro K620"
	Option "RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x2233; PowerMizerDefault=0x1"
EndSection
$ grep ^MODULES /etc/mkinitcpio.conf 
MODULES=(nvidia nvidia_modeset nvidia_uvm nvidia_drm)
$ grep GRUB_CMDLINE_LINUX_DEFAULT /etc/default/grub 
GRUB_CMDLINE_LINUX_DEFAULT="loglevel=3 quiet nvidia-drm.modeset=0 nomodeset"
$ cat /var/log/Xorg.0.log  
[    22.901] (--) Log file renamed from "/var/log/Xorg.pid-771.log" to "/var/log/Xorg.0.log"
[    22.902] (WW) Failed to open protocol names file lib/xorg/protocol.txt
[    22.902] 
X.Org X Server 1.20.6
X Protocol Version 11, Revision 0
[    22.902] Build Operating System: Linux Arch Linux
[    22.902] Current Operating System: Linux mc9020 5.4.3-arch1-1 #1 SMP PREEMPT Fri, 13 Dec 2019 09:39:02 +0000 x86_64
[    22.902] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=d3591809-1ed5-4076-8f8d-3550ad542c62 rw loglevel=3 quiet nvidia-drm.modeset=0 nomodeset
[    22.902] Build Date: 23 November 2019  06:54:33AM
[    22.902]  
[    22.902] Current version of pixman: 0.38.4
[    22.902] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[    22.902] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    22.902] (==) Log file: "/var/log/Xorg.0.log", Time: Wed Dec 18 14:24:13 2019
[    22.904] (==) Using config directory: "/etc/X11/xorg.conf.d"
[    22.904] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    22.905] (==) No Layout section.  Using the first Screen section.
[    22.905] (==) No screen section available. Using defaults.
[    22.905] (**) |-->Screen "Default Screen Section" (0)
[    22.905] (**) |   |-->Monitor "<default monitor>"
[    22.905] (==) No device specified for screen "Default Screen Section".
	Using the first device section listed.
[    22.905] (**) |   |-->Device "Nvidia Card"
[    22.905] (==) No monitor specified for screen "Default Screen Section".
	Using a default monitor configuration.
[    22.905] (==) Automatically adding devices
[    22.905] (==) Automatically enabling devices
[    22.905] (==) Automatically adding GPU devices
[    22.905] (==) Automatically binding GPU devices
[    22.905] (==) Max clients allowed: 256, resource mask: 0x1fffff
[    22.906] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/misc".
[    22.906] 	Entry deleted from font path.
[    22.906] 	(Run 'mkfontdir' on "/usr/share/fonts/misc").
[    22.907] (WW) The directory "/usr/share/fonts/Type1" does not exist.
[    22.908] 	Entry deleted from font path.
[    22.908] (==) FontPath set to:
	/usr/share/fonts/TTF,
	/usr/share/fonts/OTF,
	/usr/share/fonts/100dpi,
	/usr/share/fonts/75dpi
[    22.908] (==) ModulePath set to "/usr/lib/xorg/modules"
[    22.908] (II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
[    22.908] (II) Module ABI versions:
[    22.908] 	X.Org ANSI C Emulation: 0.4
[    22.908] 	X.Org Video Driver: 24.0
[    22.908] 	X.Org XInput driver : 24.1
[    22.908] 	X.Org Server Extension : 10.0
[    22.908] (++) using VT number 1

[    22.910] (II) systemd-logind: took control of session /org/freedesktop/login1/session/c1
[    22.910] (II) xfree86: Adding drm device (/dev/dri/card0)
[    22.911] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 11 paused 0
[    22.912] (**) OutputClass "nvidia" ModulePath extended to "/usr/lib/nvidia/xorg,/usr/lib/xorg/modules,/usr/lib/xorg/modules"
[    22.912] (**) OutputClass "nvidia" setting /dev/dri/card0 as PrimaryGPU
[    22.913] (--) PCI: (0@0:2:0) 8086:0412:1028:05a6 rev 6, Mem @ 0xf7400000/4194304, 0xd0000000/268435456, I/O @ 0x0000f000/64
[    22.913] (--) PCI:*(1@0:0:0) 10de:13bb:10de:1098 rev 162, Mem @ 0xf6000000/16777216, 0xe0000000/268435456, 0xf0000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/131072
[    22.913] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[    22.913] (II) LoadModule: "glx"
[    22.915] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[    22.922] (II) Module glx: vendor="X.Org Foundation"
[    22.922] 	compiled for 1.20.6, module version = 1.0.0
[    22.922] 	ABI class: X.Org Server Extension, version 10.0
[    22.922] (II) LoadModule: "nvidia"
[    22.923] (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
[    22.928] (II) Module nvidia: vendor="NVIDIA Corporation"
[    22.928] 	compiled for 1.6.99.901, module version = 1.0.0
[    22.928] 	Module class: X.Org Video Driver
[    22.928] (II) NVIDIA dlloader X Driver  440.44  Sun Dec  8 03:38:31 UTC 2019
[    22.928] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[    22.929] (II) systemd-logind: releasing fd for 226:0
[    22.930] (II) Loading sub module "fb"
[    22.930] (II) LoadModule: "fb"
[    22.930] (II) Loading /usr/lib/xorg/modules/libfb.so
[    22.931] (II) Module fb: vendor="X.Org Foundation"
[    22.931] 	compiled for 1.20.6, module version = 1.0.0
[    22.931] 	ABI class: X.Org ANSI C Emulation, version 0.4
[    22.931] (II) Loading sub module "wfb"
[    22.931] (II) LoadModule: "wfb"
[    22.931] (II) Loading /usr/lib/xorg/modules/libwfb.so
[    22.932] (II) Module wfb: vendor="X.Org Foundation"
[    22.932] 	compiled for 1.20.6, module version = 1.0.0
[    22.932] 	ABI class: X.Org ANSI C Emulation, version 0.4
[    22.932] (II) Loading sub module "ramdac"
[    22.932] (II) LoadModule: "ramdac"
[    22.932] (II) Module "ramdac" already built-in
[    22.933] (II) NVIDIA(0): Creating default Display subsection in Screen section
	"Default Screen Section" for depth/fbbpp 24/32
[    22.933] (==) NVIDIA(0): Depth 24, (==) framebuffer bpp 32
[    22.933] (==) NVIDIA(0): RGB weight 888
[    22.933] (==) NVIDIA(0): Default visual is TrueColor
[    22.933] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
[    22.934] (II) Applying OutputClass "nvidia" options to /dev/dri/card0
[    22.934] (**) NVIDIA(0): Option "AllowEmptyInitialConfiguration"
[    22.934] (**) NVIDIA(0): Option "RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x2233; PowerMizerDefault=0x1"
[    22.934] (**) NVIDIA(0): Enabling 2D acceleration
[    22.934] (II) Loading sub module "glxserver_nvidia"
[    22.934] (II) LoadModule: "glxserver_nvidia"
[    22.934] (II) Loading /usr/lib/nvidia/xorg/libglxserver_nvidia.so
[    22.979] (II) Module glxserver_nvidia: vendor="NVIDIA Corporation"
[    22.979] 	compiled for 1.6.99.901, module version = 1.0.0
[    22.979] 	Module class: X.Org Server Extension
[    22.980] (II) NVIDIA GLX Module  440.44  Sun Dec  8 03:36:07 UTC 2019
[    22.981] (II) NVIDIA: The X server supports PRIME Render Offload.
[    24.486] (--) NVIDIA(0): Valid display device(s) on GPU-0 at PCI:1:0:0
[    24.486] (--) NVIDIA(0):     CRT-0
[    24.486] (--) NVIDIA(0):     DFP-2.8
[    24.486] (--) NVIDIA(0):     DFP-2.1.8
[    24.486] (--) NVIDIA(0):     DFP-0
[    24.486] (--) NVIDIA(0):     DFP-1
[    24.486] (--) NVIDIA(0):     DFP-2 (boot)
[    24.487] (II) NVIDIA(0): NVIDIA GPU Quadro K620 (GM107GL-A) at PCI:1:0:0 (GPU-0)
[    24.487] (--) NVIDIA(0): Memory: 2097152 kBytes
[    24.487] (--) NVIDIA(0): VideoBIOS: 82.07.7a.00.1a
[    24.487] (II) NVIDIA(0): Detected PCI Express Link width: 16X
[    24.491] (--) NVIDIA(GPU-0): CRT-0: disconnected
[    24.491] (--) NVIDIA(GPU-0): CRT-0: 400.0 MHz maximum pixel clock
[    24.491] (--) NVIDIA(GPU-0): 
[    24.492] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.8): connected
[    24.492] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.8): Internal DisplayPort
[    24.492] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.8): GUID: 10DE9070-0005-99FA-4FAE-F1E70000000C
[    24.492] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.8): 960.0 MHz maximum pixel clock
[    24.492] (--) NVIDIA(GPU-0): 
[    24.492] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.1.8): connected
[    24.492] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.1.8): Internal DisplayPort
[    24.492] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.1.8): GUID: B3E34BAC-7621-EA11-825F-BCA8A69A588E
[    24.492] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.1.8): 960.0 MHz maximum pixel clock
[    24.492] (--) NVIDIA(GPU-0): 
[    24.496] (--) NVIDIA(GPU-0): DFP-0: disconnected
[    24.496] (--) NVIDIA(GPU-0): DFP-0: Internal TMDS
[    24.497] (--) NVIDIA(GPU-0): DFP-0: 330.0 MHz maximum pixel clock
[    24.497] (--) NVIDIA(GPU-0): 
[    24.499] (--) NVIDIA(GPU-0): DFP-1: disconnected
[    24.499] (--) NVIDIA(GPU-0): DFP-1: Internal TMDS
[    24.499] (--) NVIDIA(GPU-0): DFP-1: 165.0 MHz maximum pixel clock
[    24.499] (--) NVIDIA(GPU-0): 
[    24.499] (--) NVIDIA(GPU-0): DFP-2: disconnected
[    24.499] (--) NVIDIA(GPU-0): DFP-2: Internal DisplayPort
[    24.499] (--) NVIDIA(GPU-0): DFP-2: 960.0 MHz maximum pixel clock
[    24.499] (--) NVIDIA(GPU-0): 
[    24.499] (**) NVIDIA(0): Option "Primary" "true"
[    24.556] (==) NVIDIA(0): 
[    24.556] (==) NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select"
[    24.556] (==) NVIDIA(0):     will be used as the requested mode.
[    24.556] (==) NVIDIA(0): 
[    24.556] (II) NVIDIA(0): Validated MetaModes:
[    24.556] (II) NVIDIA(0):     "DFP-2.8:nvidia-auto-select,DFP-2.1.8:nvidia-auto-select"
[    24.556] (II) NVIDIA(0): Virtual screen size determined to be 5120 x 1440
[    24.562] (--) NVIDIA(0): DPI set to (108, 107); computed from "UseEdidDpi" X config
[    24.562] (--) NVIDIA(0):     option
[    24.563] (II) NVIDIA: Using 6144.00 MB of virtual memory for indirect memory
[    24.563] (II) NVIDIA:     access.
[    24.565] (II) NVIDIA(0): ACPI: failed to connect to the ACPI event daemon; the daemon
[    24.565] (II) NVIDIA(0):     may not be running or the "AcpidSocketPath" X
[    24.565] (II) NVIDIA(0):     configuration option may not be set correctly.  When the
[    24.565] (II) NVIDIA(0):     ACPI event daemon is available, the NVIDIA X driver will
[    24.565] (II) NVIDIA(0):     try to use it to receive ACPI event notifications.  For
[    24.565] (II) NVIDIA(0):     details, please see the "ConnectToAcpid" and
[    24.565] (II) NVIDIA(0):     "AcpidSocketPath" X configuration options in Appendix B: X
[    24.565] (II) NVIDIA(0):     Config Options in the README.
[    24.590] (II) NVIDIA(0): Setting mode "DFP-2.8:nvidia-auto-select,DFP-2.1.8:nvidia-auto-select"
[    25.328] (==) NVIDIA(0): Disabling shared memory pixmaps
[    25.328] (==) NVIDIA(0): Backing store enabled
[    25.328] (==) NVIDIA(0): Silken mouse disabled
[    25.328] (==) NVIDIA(0): DPMS enabled
[    25.328] (WW) NVIDIA(0): Option "PrimaryGPU" is not used
[    25.328] (II) Loading sub module "dri2"
[    25.328] (II) LoadModule: "dri2"
[    25.328] (II) Module "dri2" already built-in
[    25.328] (II) NVIDIA(0): [DRI2] Setup complete
[    25.328] (II) NVIDIA(0): [DRI2]   VDPAU driver: nvidia
[    25.329] (II) Initializing extension Generic Event Extension
[    25.329] (II) Initializing extension SHAPE
[    25.329] (II) Initializing extension MIT-SHM
[    25.329] (II) Initializing extension XInputExtension
[    25.329] (II) Initializing extension XTEST
[    25.329] (II) Initializing extension BIG-REQUESTS
[    25.329] (II) Initializing extension SYNC
[    25.329] (II) Initializing extension XKEYBOARD
[    25.329] (II) Initializing extension XC-MISC
[    25.329] (II) Initializing extension SECURITY
[    25.329] (II) Initializing extension XFIXES
[    25.329] (II) Initializing extension RENDER
[    25.329] (II) Initializing extension RANDR
[    25.329] (II) Initializing extension COMPOSITE
[    25.329] (II) Initializing extension DAMAGE
[    25.329] (II) Initializing extension MIT-SCREEN-SAVER
[    25.329] (II) Initializing extension DOUBLE-BUFFER
[    25.329] (II) Initializing extension RECORD
[    25.329] (II) Initializing extension DPMS
[    25.329] (II) Initializing extension Present
[    25.330] (II) Initializing extension DRI3
[    25.330] (II) Initializing extension X-Resource
[    25.330] (II) Initializing extension XVideo
[    25.330] (II) Initializing extension XVideo-MotionCompensation
[    25.330] (II) Initializing extension GLX
[    25.330] (II) Initializing extension GLX
[    25.330] (II) Indirect GLX disabled.
[    25.330] (II) GLX: Another vendor is already registered for screen 0
[    25.330] (II) Initializing extension XFree86-VidModeExtension
[    25.330] (II) Initializing extension XFree86-DGA
[    25.330] (II) Initializing extension XFree86-DRI
[    25.330] (II) Initializing extension DRI2
[    25.330] (II) Initializing extension NV-GLX
[    25.330] (II) Initializing extension NV-CONTROL
[    25.330] (II) Initializing extension XINERAMA
[    25.402] (II) config/udev: Adding input device Power Button (/dev/input/event1)
[    25.402] (**) Power Button: Applying InputClass "libinput keyboard catchall"
[    25.402] (**) Power Button: Applying InputClass "system-keyboard"
[    25.402] (II) LoadModule: "libinput"
[    25.402] (II) Loading /usr/lib/xorg/modules/input/libinput_drv.so
[    25.406] (II) Module libinput: vendor="X.Org Foundation"
[    25.406] 	compiled for 1.20.5, module version = 0.29.0
[    25.406] 	Module class: X.Org XInput Driver
[    25.406] 	ABI class: X.Org XInput driver, version 24.1
[    25.406] (II) Using input driver 'libinput' for 'Power Button'
[    25.407] (II) systemd-logind: got fd for /dev/input/event1 13:65 fd 33 paused 0
[    25.407] (**) Power Button: always reports core events
[    25.407] (**) Option "Device" "/dev/input/event1"
[    25.407] (**) Option "_source" "server/udev"
[    25.412] (II) event1  - Power Button: is tagged by udev as: Keyboard
[    25.412] (II) event1  - Power Button: device is a keyboard
[    25.412] (II) event1  - Power Button: device removed
[    25.412] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1/event1"
[    25.412] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 6)
[    25.412] (**) Option "xkb_model" "fr"
[    25.412] (**) Option "xkb_layout" "ch"
[    25.425] (II) event1  - Power Button: is tagged by udev as: Keyboard
[    25.425] (II) event1  - Power Button: device is a keyboard
[    25.425] (II) config/udev: Adding input device Power Button (/dev/input/event0)
[    25.425] (**) Power Button: Applying InputClass "libinput keyboard catchall"
[    25.425] (**) Power Button: Applying InputClass "system-keyboard"
[    25.425] (II) Using input driver 'libinput' for 'Power Button'
[    25.426] (II) systemd-logind: got fd for /dev/input/event0 13:64 fd 36 paused 0
[    25.426] (**) Power Button: always reports core events
[    25.426] (**) Option "Device" "/dev/input/event0"
[    25.426] (**) Option "_source" "server/udev"
[    25.427] (II) event0  - Power Button: is tagged by udev as: Keyboard
[    25.427] (II) event0  - Power Button: device is a keyboard
[    25.427] (II) event0  - Power Button: device removed
[    25.427] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0/event0"
[    25.427] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 7)
[    25.427] (**) Option "xkb_model" "fr"
[    25.427] (**) Option "xkb_layout" "ch"
[    25.427] (II) event0  - Power Button: is tagged by udev as: Keyboard
[    25.427] (II) event0  - Power Button: device is a keyboard
[    25.428] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event10)
[    25.428] (II) No input driver specified, ignoring this device.
[    25.428] (II) This device may have been added with another device file.
[    25.428] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event11)
[    25.428] (II) No input driver specified, ignoring this device.
[    25.428] (II) This device may have been added with another device file.
[    25.428] (II) config/udev: Adding input device DELL Dell USB Entry Keyboard (/dev/input/event2)
[    25.428] (**) DELL Dell USB Entry Keyboard: Applying InputClass "libinput keyboard catchall"
[    25.428] (**) DELL Dell USB Entry Keyboard: Applying InputClass "system-keyboard"
[    25.428] (II) Using input driver 'libinput' for 'DELL Dell USB Entry Keyboard'
[    25.429] (II) systemd-logind: got fd for /dev/input/event2 13:66 fd 37 paused 0
[    25.429] (**) DELL Dell USB Entry Keyboard: always reports core events
[    25.429] (**) Option "Device" "/dev/input/event2"
[    25.429] (**) Option "_source" "server/udev"
[    25.430] (II) event2  - DELL Dell USB Entry Keyboard: is tagged by udev as: Keyboard
[    25.430] (II) event2  - DELL Dell USB Entry Keyboard: device is a keyboard
[    25.430] (II) event2  - DELL Dell USB Entry Keyboard: device removed
[    25.430] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/0003:413C:2107.0001/input/input2/event2"
[    25.430] (II) XINPUT: Adding extended input device "DELL Dell USB Entry Keyboard" (type: KEYBOARD, id 8)
[    25.430] (**) Option "xkb_model" "fr"
[    25.430] (**) Option "xkb_layout" "ch"
[    25.431] (II) event2  - DELL Dell USB Entry Keyboard: is tagged by udev as: Keyboard
[    25.431] (II) event2  - DELL Dell USB Entry Keyboard: device is a keyboard
[    25.432] (II) config/udev: Adding input device HDA Intel PCH Front Mic (/dev/input/event3)
[    25.432] (II) No input driver specified, ignoring this device.
[    25.432] (II) This device may have been added with another device file.
[    25.432] (II) config/udev: Adding input device HDA Intel PCH Rear Mic (/dev/input/event4)
[    25.432] (II) No input driver specified, ignoring this device.
[    25.432] (II) This device may have been added with another device file.
[    25.432] (II) config/udev: Adding input device HDA Intel PCH Line Out (/dev/input/event5)
[    25.432] (II) No input driver specified, ignoring this device.
[    25.432] (II) This device may have been added with another device file.
[    25.432] (II) config/udev: Adding input device HDA Intel PCH Front Headphone (/dev/input/event6)
[    25.432] (II) No input driver specified, ignoring this device.
[    25.432] (II) This device may have been added with another device file.
[    25.433] (II) config/udev: Adding input device Logitech Inc Logitech Stereo H650e Consumer Control (/dev/input/event8)
[    25.433] (**) Logitech Inc Logitech Stereo H650e Consumer Control: Applying InputClass "libinput keyboard catchall"
[    25.433] (**) Logitech Inc Logitech Stereo H650e Consumer Control: Applying InputClass "system-keyboard"
[    25.433] (II) Using input driver 'libinput' for 'Logitech Inc Logitech Stereo H650e Consumer Control'
[    25.433] (II) systemd-logind: got fd for /dev/input/event8 13:72 fd 38 paused 0
[    25.433] (**) Logitech Inc Logitech Stereo H650e Consumer Control: always reports core events
[    25.433] (**) Option "Device" "/dev/input/event8"
[    25.433] (**) Option "_source" "server/udev"
[    25.434] (II) event8  - Logitech Inc Logitech Stereo H650e Consumer Control: is tagged by udev as: Keyboard
[    25.434] (II) event8  - Logitech Inc Logitech Stereo H650e Consumer Control: device is a keyboard
[    25.434] (II) event8  - Logitech Inc Logitech Stereo H650e Consumer Control: device removed
[    25.434] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.0/usb3/3-1/3-1.5/3-1.5.1/3-1.5.1:1.3/0003:046D:0A46.0002/input/input8/event8"
[    25.434] (II) XINPUT: Adding extended input device "Logitech Inc Logitech Stereo H650e Consumer Control" (type: KEYBOARD, id 9)
[    25.434] (**) Option "xkb_model" "fr"
[    25.434] (**) Option "xkb_layout" "ch"
[    25.435] (II) event8  - Logitech Inc Logitech Stereo H650e Consumer Control: is tagged by udev as: Keyboard
[    25.436] (II) event8  - Logitech Inc Logitech Stereo H650e Consumer Control: device is a keyboard
[    25.436] (II) config/udev: Adding input device Logitech Inc Logitech Stereo H650e (/dev/input/event9)
[    25.436] (**) Logitech Inc Logitech Stereo H650e: Applying InputClass "libinput keyboard catchall"
[    25.436] (**) Logitech Inc Logitech Stereo H650e: Applying InputClass "system-keyboard"
[    25.436] (II) Using input driver 'libinput' for 'Logitech Inc Logitech Stereo H650e'
[    25.437] (II) systemd-logind: got fd for /dev/input/event9 13:73 fd 39 paused 0
[    25.437] (**) Logitech Inc Logitech Stereo H650e: always reports core events
[    25.437] (**) Option "Device" "/dev/input/event9"
[    25.437] (**) Option "_source" "server/udev"
[    25.438] (II) event9  - Logitech Inc Logitech Stereo H650e: is tagged by udev as: Keyboard
[    25.438] (II) event9  - Logitech Inc Logitech Stereo H650e: device is a keyboard
[    25.438] (II) event9  - Logitech Inc Logitech Stereo H650e: device removed
[    25.438] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.0/usb3/3-1/3-1.5/3-1.5.1/3-1.5.1:1.3/0003:046D:0A46.0002/input/input9/event9"
[    25.438] (II) XINPUT: Adding extended input device "Logitech Inc Logitech Stereo H650e" (type: KEYBOARD, id 10)
[    25.438] (**) Option "xkb_model" "fr"
[    25.438] (**) Option "xkb_layout" "ch"
[    25.439] (II) event9  - Logitech Inc Logitech Stereo H650e: is tagged by udev as: Keyboard
[    25.439] (II) event9  - Logitech Inc Logitech Stereo H650e: device is a keyboard
[    25.440] (II) config/udev: Adding input device Logitech USB Optical Mouse (/dev/input/event12)
[    25.440] (**) Logitech USB Optical Mouse: Applying InputClass "libinput pointer catchall"
[    25.440] (II) Using input driver 'libinput' for 'Logitech USB Optical Mouse'
[    25.496] (II) systemd-logind: got fd for /dev/input/event12 13:76 fd 40 paused 0
[    25.496] (**) Logitech USB Optical Mouse: always reports core events
[    25.496] (**) Option "Device" "/dev/input/event12"
[    25.496] (**) Option "_source" "server/udev"
[    25.498] (II) event12 - Logitech USB Optical Mouse: is tagged by udev as: Mouse
[    25.498] (II) event12 - Logitech USB Optical Mouse: device is a pointer
[    25.498] (II) event12 - Logitech USB Optical Mouse: device removed
[    25.498] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.0/usb3/3-1/3-1.5/3-1.5.2/3-1.5.2:1.0/0003:046D:C064.0003/input/input12/event12"
[    25.498] (II) XINPUT: Adding extended input device "Logitech USB Optical Mouse" (type: MOUSE, id 11)
[    25.498] (**) Option "AccelerationScheme" "none"
[    25.498] (**) Logitech USB Optical Mouse: (accel) selected scheme none/0
[    25.498] (**) Logitech USB Optical Mouse: (accel) acceleration factor: 2.000
[    25.498] (**) Logitech USB Optical Mouse: (accel) acceleration threshold: 4
[    25.500] (II) event12 - Logitech USB Optical Mouse: is tagged by udev as: Mouse
[    25.500] (II) event12 - Logitech USB Optical Mouse: device is a pointer
[    25.501] (II) config/udev: Adding input device Logitech USB Optical Mouse (/dev/input/mouse0)
[    25.501] (II) No input driver specified, ignoring this device.
[    25.501] (II) This device may have been added with another device file.
[    25.502] (II) config/udev: Adding input device B525 HD Webcam (/dev/input/event14)
[    25.502] (**) B525 HD Webcam: Applying InputClass "libinput keyboard catchall"
[    25.502] (**) B525 HD Webcam: Applying InputClass "system-keyboard"
[    25.502] (II) Using input driver 'libinput' for 'B525 HD Webcam'
[    25.502] (II) systemd-logind: got fd for /dev/input/event14 13:78 fd 41 paused 0
[    25.502] (**) B525 HD Webcam: always reports core events
[    25.503] (**) Option "Device" "/dev/input/event14"
[    25.503] (**) Option "_source" "server/udev"
[    25.504] (II) event14 - B525 HD Webcam: is tagged by udev as: Keyboard
[    25.504] (II) event14 - B525 HD Webcam: device is a keyboard
[    25.504] (II) event14 - B525 HD Webcam: device removed
[    25.505] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.0/usb3/3-1/3-1.5/3-1.5.3/3-1.5.3:1.2/input/input14/event14"
[    25.505] (II) XINPUT: Adding extended input device "B525 HD Webcam" (type: KEYBOARD, id 12)
[    25.505] (**) Option "xkb_model" "fr"
[    25.505] (**) Option "xkb_layout" "ch"
[    25.506] (II) event14 - B525 HD Webcam: is tagged by udev as: Keyboard
[    25.507] (II) event14 - B525 HD Webcam: device is a keyboard
[    25.508] (II) config/udev: Adding input device DELL Dell USB Entry Keyboard (/dev/input/event13)
[    25.508] (**) DELL Dell USB Entry Keyboard: Applying InputClass "libinput keyboard catchall"
[    25.508] (**) DELL Dell USB Entry Keyboard: Applying InputClass "system-keyboard"
[    25.508] (II) Using input driver 'libinput' for 'DELL Dell USB Entry Keyboard'
[    25.508] (II) systemd-logind: got fd for /dev/input/event13 13:77 fd 42 paused 0
[    25.508] (**) DELL Dell USB Entry Keyboard: always reports core events
[    25.508] (**) Option "Device" "/dev/input/event13"
[    25.508] (**) Option "_source" "server/udev"
[    25.509] (II) event13 - DELL Dell USB Entry Keyboard: is tagged by udev as: Keyboard
[    25.509] (II) event13 - DELL Dell USB Entry Keyboard: device is a keyboard
[    25.510] (II) event13 - DELL Dell USB Entry Keyboard: device removed
[    25.510] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.0/usb3/3-1/3-1.5/3-1.5.4/3-1.5.4:1.0/0003:413C:2107.0004/input/input13/event13"
[    25.510] (II) XINPUT: Adding extended input device "DELL Dell USB Entry Keyboard" (type: KEYBOARD, id 13)
[    25.510] (**) Option "xkb_model" "fr"
[    25.510] (**) Option "xkb_layout" "ch"
[    25.511] (II) event13 - DELL Dell USB Entry Keyboard: is tagged by udev as: Keyboard
[    25.511] (II) event13 - DELL Dell USB Entry Keyboard: device is a keyboard
[    25.511] (II) config/udev: Adding input device Dell WMI hotkeys (/dev/input/event7)
[    25.511] (**) Dell WMI hotkeys: Applying InputClass "libinput keyboard catchall"
[    25.511] (**) Dell WMI hotkeys: Applying InputClass "system-keyboard"
[    25.511] (II) Using input driver 'libinput' for 'Dell WMI hotkeys'
[    25.512] (II) systemd-logind: got fd for /dev/input/event7 13:71 fd 43 paused 0
[    25.512] (**) Dell WMI hotkeys: always reports core events
[    25.512] (**) Option "Device" "/dev/input/event7"
[    25.512] (**) Option "_source" "server/udev"
[    25.512] (II) event7  - Dell WMI hotkeys: is tagged by udev as: Keyboard
[    25.513] (II) event7  - Dell WMI hotkeys: device is a keyboard
[    25.513] (II) event7  - Dell WMI hotkeys: device removed
[    25.513] (**) Option "config_info" "udev:/sys/devices/platform/PNP0C14:01/wmi_bus/wmi_bus-PNP0C14:01/9DBB5994-A997-11DA-B012-B622A1EF5492/input/input7/event7"
[    25.513] (II) XINPUT: Adding extended input device "Dell WMI hotkeys" (type: KEYBOARD, id 14)
[    25.513] (**) Option "xkb_model" "fr"
[    25.513] (**) Option "xkb_layout" "ch"
[    25.513] (II) event7  - Dell WMI hotkeys: is tagged by udev as: Keyboard
[    25.513] (II) event7  - Dell WMI hotkeys: device is a keyboard
[    25.516] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.8): connected
[    25.516] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.8): Internal DisplayPort
[    25.516] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.8): GUID: 10DE9070-0005-99FA-4FAE-F1E70000000C
[    25.516] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.8): 960.0 MHz maximum pixel clock
[    25.516] (--) NVIDIA(GPU-0): 
[    25.517] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.1.8): connected
[    25.517] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.1.8): Internal DisplayPort
[    25.517] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.1.8): GUID: B3E34BAC-7621-EA11-825F-BCA8A69A588E
[    25.517] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.1.8): 960.0 MHz maximum pixel clock
[    25.517] (--) NVIDIA(GPU-0): 
[    25.895] (--) NVIDIA(GPU-0): CRT-0: disconnected
[    25.895] (--) NVIDIA(GPU-0): CRT-0: 400.0 MHz maximum pixel clock
[    25.895] (--) NVIDIA(GPU-0): 
[    25.895] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.8): connected
[    25.895] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.8): Internal DisplayPort
[    25.895] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.8): GUID: 10DE9070-0005-99FA-4FAE-F1E70000000C
[    25.895] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.8): 960.0 MHz maximum pixel clock
[    25.895] (--) NVIDIA(GPU-0): 
[    25.896] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.1.8): connected
[    25.896] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.1.8): Internal DisplayPort
[    25.896] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.1.8): GUID: B3E34BAC-7621-EA11-825F-BCA8A69A588E
[    25.896] (--) NVIDIA(GPU-0): DELL U2715H (DFP-2.1.8): 960.0 MHz maximum pixel clock
[    25.896] (--) NVIDIA(GPU-0): 
[    25.900] (--) NVIDIA(GPU-0): DFP-0: disconnected
[    25.900] (--) NVIDIA(GPU-0): DFP-0: Internal TMDS
[    25.900] (--) NVIDIA(GPU-0): DFP-0: 330.0 MHz maximum pixel clock
[    25.900] (--) NVIDIA(GPU-0): 
[    25.902] (--) NVIDIA(GPU-0): DFP-1: disconnected
[    25.902] (--) NVIDIA(GPU-0): DFP-1: Internal TMDS
[    25.902] (--) NVIDIA(GPU-0): DFP-1: 165.0 MHz maximum pixel clock
[    25.902] (--) NVIDIA(GPU-0): 
[    25.902] (--) NVIDIA(GPU-0): DFP-2: disconnected
[    25.902] (--) NVIDIA(GPU-0): DFP-2: Internal DisplayPort
[    25.902] (--) NVIDIA(GPU-0): DFP-2: 960.0 MHz maximum pixel clock
[    25.902] (--) NVIDIA(GPU-0): 
[    35.397] (**) Option "fd" "33"
[    35.397] (II) event1  - Power Button: device removed
[    35.397] (**) Option "fd" "36"
[    35.397] (II) event0  - Power Button: device removed
[    35.397] (**) Option "fd" "37"
[    35.397] (II) event2  - DELL Dell USB Entry Keyboard: device removed
[    35.397] (**) Option "fd" "38"
[    35.397] (II) event8  - Logitech Inc Logitech Stereo H650e Consumer Control: device removed
[    35.397] (**) Option "fd" "39"
[    35.397] (II) event9  - Logitech Inc Logitech Stereo H650e: device removed
[    35.397] (**) Option "fd" "40"
[    35.397] (II) event12 - Logitech USB Optical Mouse: device removed
[    35.397] (**) Option "fd" "41"
[    35.397] (II) event14 - B525 HD Webcam: device removed
[    35.397] (**) Option "fd" "42"
[    35.397] (II) event13 - DELL Dell USB Entry Keyboard: device removed
[    35.398] (**) Option "fd" "43"
[    35.398] (II) event7  - Dell WMI hotkeys: device removed
[    35.965] (II) systemd-logind: got pause for 13:77
[    35.966] (II) systemd-logind: got pause for 13:66
[    35.966] (II) systemd-logind: got pause for 13:73
[    35.966] (II) systemd-logind: got pause for 13:72
[    35.966] (II) systemd-logind: got pause for 13:76
[    35.966] (II) systemd-logind: got pause for 13:78
[    35.966] (II) systemd-logind: got pause for 13:65
[    35.966] (II) systemd-logind: got pause for 13:64
[    35.966] (II) systemd-logind: got pause for 13:71

Other info: I use the latest linux in core, i3 + compton and I login with GDM (no difference if i do startx as root). When I switch to tty, the second monitor "magically" turns on (of course it just mirrors what is in printed in the first monitor).

This problem seems related to https://bbs.archlinux.org/viewtopic.php?id=250696 and this is why I added the line Option    "HardDPMS" "false" in my 10-monitor.conf. No luck.

What I tried?
I tried the package nvidia-390xx-dkms and indeed the second monitor turns on, BUT when I switch source in the first monitor (It may happen several times a day) to the miniDP and then back to the DP, the two monitors won't wake up again, no matter what and in dmesg I noticed something similar to this error (maybe related to https://bbs.archlinux.org/viewtopic.php?id=237180):

NVRM: Xid (PCI:0000:01:00): 16, Head 00000001 Count 00028708

I thought it has to do with some energy saving policy and therefore I added the line Option "RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x2233; PowerMizerDefault=0x1" in my 20-nvidia.conf (which would keep the GPU on high performance) but no luck. I reverted back to the most updated driver with which, at least, one montor always turns on so that bug is fixed with the more recent drivers

I tried with nouveau, but I had similar problem to the previous point (I did not take note of any error unfortunately).

The intel iGPU is also disabled at bios level.

Please, any help would be greatly appreciated!

EDIT: I aways try to execute xset dpms force off ; xset dpms force on , but the second monitor stays off.

Last edited by Jack_CM (2019-12-18 14:25:58)

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#2 2019-12-18 15:08:03

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 76,065

Re: DisplayPort DaisyChain NVIDIA problem on the second monitor

the second monitor does not turn on.

Is this from the beginning on or related to switching the input of the first monitor? Can you please take the notebook/dock completely out of the equation and check whether the problem remains?

Assuming "yes": what if you run

xrandr --output DP-1.8 --mode 1024x768 --output DP-1.1.8 --mode 1024x768 --same-as DP-1.8

(In case that should work, try the "--auto" resolution, but keep them cloned as well as putting them next to each other, but remaining in XGA)

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#3 2019-12-18 15:40:02

Jack_CM
Member
Registered: 2012-02-10
Posts: 55

Re: DisplayPort DaisyChain NVIDIA problem on the second monitor

First, thank you for looking into it.

seth wrote:

Is this from the beginning on or related to switching the input of the first monitor? Can you please take the notebook/dock completely out of the equation and check whether the problem remains?

The monitor is going off (or, to be more precise, in some sort of power save mode) as soon as X starts (wether it is with GDM or startx). The connection of the laptopt/dock is irrelevant, as the second monitor always stays off.

I tried 

xrandr --output DP-1.8 --mode 1024x768 --output DP-1.1.8 --mode 1024x768 --same-as DP-1.8

but the second monitor does not turn on unfortunately (I also tried to force xset dpms force off ; xset dpms force on again)

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#4 2019-12-18 15:43:23

otavioschwanck
Member
Registered: 2019-11-29
Posts: 12

Re: DisplayPort DaisyChain NVIDIA problem on the second monitor

i wrote this guide about this:
https://bbs.archlinux.org/viewtopic.php?id=251491

Remove your xorg related configs (if exist) and add the optimus.conf listed on this guide.

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#5 2019-12-18 15:46:38

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 76,065

Re: DisplayPort DaisyChain NVIDIA problem on the second monitor

@otavioschwanck this doesn't apply here at all. Also this forum isn't for tutorials and there's nothing in there that you won't find in the wiki - except for the oversized images.
Expect that post to be dustbinned soon.

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#6 2019-12-18 15:51:15

otavioschwanck
Member
Registered: 2019-11-29
Posts: 12

Re: DisplayPort DaisyChain NVIDIA problem on the second monitor

seth wrote:

@otavioschwanck this doesn't apply here at all. Also this forum isn't for tutorials and there's nothing in there that you won't find in the wiki - except for the oversized images.
Expect that post to be dustbinned soon.

Sorry, i did not know.  I'll post it on another place.

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#7 2019-12-18 15:56:56

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 76,065

Re: DisplayPort DaisyChain NVIDIA problem on the second monitor

@Jack_CM, google brought up this about the specific monitor model: https://multimonitorcomputer.com/solved … aining.php
Apparently DP 1.2 is off by default?

Can you daisychain from the windows laptop/dock?

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#8 2019-12-18 16:14:44

Jack_CM
Member
Registered: 2012-02-10
Posts: 55

Re: DisplayPort DaisyChain NVIDIA problem on the second monitor

@seth
It works with the windows laptop, moreover it works with nouveau and it works with nvidia-390xx-dkms but those last two trigger even worse bug when I switch the source of the first monitor as mentioned in the previous post.

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#9 2019-12-18 16:36:46

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 76,065

Re: DisplayPort DaisyChain NVIDIA problem on the second monitor

The XID is a driver error (hung display engine), https://docs.nvidia.com/deploy/xid-errors/index.html
You could try the lts kernel (and nvidia-lts) to see whether this is some regression.

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#10 2019-12-18 16:48:13

Jack_CM
Member
Registered: 2012-02-10
Posts: 55

Re: DisplayPort DaisyChain NVIDIA problem on the second monitor

Thanks for the suggestion. I will try it as soon as I get back to my office.
Out of curiosity, how is this different from using nvidia-dkms and linux-lts?

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#11 2019-12-18 16:50:40

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 76,065

Re: DisplayPort DaisyChain NVIDIA problem on the second monitor

You don't have to build the kernel module. It's just important to have a module for the kernel and for the lts one, there's a prebuilt version.

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#12 2019-12-19 08:26:51

Jack_CM
Member
Registered: 2012-02-10
Posts: 55

Re: DisplayPort DaisyChain NVIDIA problem on the second monitor

seth wrote:

You could try the lts kernel (and nvidia-lts) to see whether this is some regression.

Hello, I tried it (in the mean time the nvidia package got an update) but still, same result unfortunately



UPDATE: I downgraded the nvidia package (I installed nvidia-dkms 435.21-17) and, by using the linux-lts kernel, now the second monitor turns finally on after xset dpms force off.

Some thoughts:
    - I am stuck with 4.19.xxx-lts kernel, which is not ideal for a bluetooth dongle I am using, but I can live with that, as apparently nvidia-dkms 435.21-17 does not build properly with 5.3++ kernels (I cannot load the module in this scenario)
    - According to this thread  https://bbs.archlinux.org/viewtopic.php?id=250696, which reports a very similar issue, I should be good as long as I set Option    "HardDPMS" "false" in my 10-monitor.conf. But maybe I am missing some other options here?

I don't feel like I should mark the thread as solved, but feel free to tell me if I should

UPDATE 2:
I am still somehow forced to use nvidia-dkms 435.21-17 with my setup, however I am able to use it also with the current 5.4 lts kernel IF this patch is applied http://ix.io/1MRE to the drivers. I've also created a dummy PKGBUILd to avoid the LTS kernel to be updated beyond 5.4

pkgname='linux-5.4.x-blocker'
pkgver=0.1
pkgrel=1
arch=(any)
depends=('linux-lts>=5.4' 'linux-lts<5.5')

Last edited by Jack_CM (2020-06-25 14:28:01)

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