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I updated arch two days ago and something did not work. Xorg did not run, due to this error probably:
# Xorg.log
...
(EE) Error systemd-logind returned paused fd for drm node
...
I thought libdrm was related to the error and I downgraded it from 2.4.59-1 to 2.4.48-1
Now when I start Xorg, the screen goes blank and I am not able to do anything (I cannot even use ctrl+alt+1 in order to bring up the terminal)
I realized there is also a backlight issue. When xorg starts, the backlight is set to 0. I can force the backlight to be higher and now all I can see is that the computer is halted at the login manager (I tried both kdm and slim)
This is the last Xorg.log
[ 86.116]
X.Org X Server 1.16.3
Release Date: 2014-12-20
[ 86.116] X Protocol Version 11, Revision 0
[ 86.116] Build Operating System: Linux 3.18.1-1-ARCH x86_64
[ 86.116] Current Operating System: Linux clynamen-arch-asus 3.17.1-1-ARCH #1 SMP PREEMPT Wed Oct 15 15:04:35 CEST 2014 x86_64
[ 86.116] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=dd1ac419-9cc7-4fd5-82b8-00acf6a13fce rw rcutree.rcu_idle_gp_delay=1 quiet
[ 86.116] Build Date: 29 December 2014 01:09:58PM
[ 86.116]
[ 86.116] Current version of pixman: 0.32.6
[ 86.116] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 86.116] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 86.116] (==) Log file: "/var/log/Xorg.0.log", Time: Fri Jan 23 21:57:03 2015
[ 86.230] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 86.250] (==) No Layout section. Using the first Screen section.
[ 86.250] (==) No screen section available. Using defaults.
[ 86.250] (**) |-->Screen "Default Screen Section" (0)
[ 86.250] (**) | |-->Monitor "<default monitor>"
[ 86.260] (==) No monitor specified for screen "Default Screen Section".
Using a default monitor configuration.
[ 86.260] (==) Automatically adding devices
[ 86.260] (==) Automatically enabling devices
[ 86.260] (==) Automatically adding GPU devices
[ 86.295] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/100dpi/".
[ 86.296] Entry deleted from font path.
[ 86.296] (Run 'mkfontdir' on "/usr/share/fonts/100dpi/").
[ 86.296] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/75dpi/".
[ 86.296] Entry deleted from font path.
[ 86.296] (Run 'mkfontdir' on "/usr/share/fonts/75dpi/").
[ 86.296] (==) FontPath set to:
/usr/share/fonts/misc/,
/usr/share/fonts/TTF/,
/usr/share/fonts/OTF/,
/usr/share/fonts/Type1/
[ 86.296] (==) ModulePath set to "/usr/lib/xorg/modules"
[ 86.296] (II) The server relies on udev to provide the list of input devices.
If no devices become available, reconfigure udev or disable AutoAddDevices.
[ 86.296] (II) Loader magic: 0x818d80
[ 86.296] (II) Module ABI versions:
[ 86.296] X.Org ANSI C Emulation: 0.4
[ 86.296] X.Org Video Driver: 18.0
[ 86.296] X.Org XInput driver : 21.0
[ 86.296] X.Org Server Extension : 8.0
[ 86.298] (II) systemd-logind: took control of session /org/freedesktop/login1/session/c1
[ 86.298] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 86.298] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 8 paused 1
[ 86.298] (EE) Error systemd-logind returned paused fd for drm node
[ 86.298] (II) systemd-logind: releasing fd for 226:0
[ 86.299] (--) PCI:*(0:0:2:0) 8086:0a16:1043:228a rev 11, Mem @ 0xf7400000/4194304, 0xd0000000/268435456, I/O @ 0x0000f000/64
[ 86.299] (--) PCI: (0:4:0:0) 10de:1140:1043:228a rev 161, Mem @ 0xf6000000/16777216, 0xe0000000/268435456, 0xf0000000/33554432, I/O @ 0x0000d000/128, BIOS @ 0x????????/524288
[ 86.300] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[ 86.300] (II) LoadModule: "glx"
[ 86.387] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 86.555] (II) Module glx: vendor="X.Org Foundation"
[ 86.555] compiled for 1.16.3, module version = 1.0.0
[ 86.555] ABI class: X.Org Server Extension, version 8.0
[ 86.555] (==) AIGLX enabled
[ 86.555] (==) Matched intel as autoconfigured driver 0
[ 86.555] (==) Matched modesetting as autoconfigured driver 1
[ 86.555] (==) Matched fbdev as autoconfigured driver 2
[ 86.555] (==) Matched vesa as autoconfigured driver 3
[ 86.555] (==) Assigned the driver to the xf86ConfigLayout
[ 86.555] (II) LoadModule: "intel"
[ 86.555] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
[ 86.610] (II) Module intel: vendor="X.Org Foundation"
[ 86.610] compiled for 1.16.3, module version = 2.99.917
[ 86.610] Module class: X.Org Video Driver
[ 86.610] ABI class: X.Org Video Driver, version 18.0
[ 86.610] (II) LoadModule: "modesetting"
[ 86.622] (WW) Warning, couldn't open module modesetting
[ 86.622] (II) UnloadModule: "modesetting"
[ 86.622] (II) Unloading modesetting
[ 86.622] (EE) Failed to load module "modesetting" (module does not exist, 0)
[ 86.622] (II) LoadModule: "fbdev"
[ 86.622] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[ 86.628] (II) Module fbdev: vendor="X.Org Foundation"
[ 86.628] compiled for 1.16.0, module version = 0.4.4
[ 86.628] Module class: X.Org Video Driver
[ 86.628] ABI class: X.Org Video Driver, version 18.0
[ 86.628] (II) LoadModule: "vesa"
[ 86.628] (WW) Warning, couldn't open module vesa
[ 86.628] (II) UnloadModule: "vesa"
[ 86.628] (II) Unloading vesa
[ 86.628] (EE) Failed to load module "vesa" (module does not exist, 0)
[ 86.628] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
i810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G,
915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM,
Pineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33,
GM45, 4 Series, G45/G43, Q45/Q43, G41, B43
[ 86.628] (II) intel: Driver for Intel(R) HD Graphics: 2000-6000
[ 86.628] (II) intel: Driver for Intel(R) Iris(TM) Graphics: 5100, 6100
[ 86.628] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics: 5200, 6200, P6300
[ 86.628] (II) FBDEV: driver for framebuffer: fbdev
[ 86.628] (++) using VT number 7
[ 86.632] (II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20140725
[ 86.632] (WW) Falling back to old probe method for fbdev
[ 86.632] (II) Loading sub module "fbdevhw"
[ 86.632] (II) LoadModule: "fbdevhw"
[ 86.632] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 86.647] (II) Module fbdevhw: vendor="X.Org Foundation"
[ 86.647] compiled for 1.16.3, module version = 0.0.2
[ 86.647] ABI class: X.Org Video Driver, version 18.0
[ 86.647] (--) intel(0): Integrated Graphics Chipset: Intel(R) HD Graphics 4400
[ 86.647] (--) intel(0): CPU: x86-64, sse2, sse3, ssse3, sse4.1, sse4.2, avx, avx2
[ 86.647] (II) intel(0): Creating default Display subsection in Screen section
"Default Screen Section" for depth/fbbpp 24/32
[ 86.647] (==) intel(0): Depth 24, (--) framebuffer bpp 32
[ 86.647] (==) intel(0): RGB weight 888
[ 86.647] (==) intel(0): Default visual is TrueColor
[ 86.648] (II) intel(0): Output eDP1 has no monitor section
[ 86.648] (--) intel(0): Found backlight control interface intel_backlight (type 'raw') for output eDP1
[ 86.648] (II) intel(0): Enabled output eDP1
[ 86.648] (II) intel(0): Output DP1 has no monitor section
[ 86.648] (II) intel(0): Enabled output DP1
[ 86.648] (II) intel(0): Output HDMI1 has no monitor section
[ 86.648] (II) intel(0): Enabled output HDMI1
[ 86.648] (--) intel(0): Using a maximum size of 256x256 for hardware cursors
[ 86.648] (II) intel(0): Output VIRTUAL1 has no monitor section
[ 86.648] (II) intel(0): Enabled output VIRTUAL1
[ 86.648] (--) intel(0): Output eDP1 using initial mode 1366x768 on pipe 0
[ 86.648] (==) intel(0): TearFree disabled
[ 86.648] (==) intel(0): DPI set to (96, 96)
[ 86.648] (II) Loading sub module "dri2"
[ 86.648] (II) LoadModule: "dri2"
[ 86.648] (II) Module "dri2" already built-in
[ 86.648] (II) Loading sub module "present"
[ 86.648] (II) LoadModule: "present"
[ 86.648] (II) Module "present" already built-in
[ 86.648] (II) UnloadModule: "fbdev"
[ 86.648] (II) Unloading fbdev
[ 86.648] (II) UnloadSubModule: "fbdevhw"
[ 86.648] (II) Unloading fbdevhw
[ 86.648] (==) Depth 24 pixmap format is 32 bpp
[ 86.673] (II) intel(0): SNA initialized with Haswell (gen7.5, gt2) backend
[ 86.673] (==) intel(0): Backing store enabled
[ 86.673] (==) intel(0): Silken mouse enabled
[ 86.676] (II) intel(0): HW Cursor enabled
[ 86.676] (II) intel(0): RandR 1.2 enabled, ignore the following RandR disabled message.
[ 86.676] (==) intel(0): DPMS enabled
[ 86.677] (==) intel(0): display hotplug detection enabled
[ 86.677] (II) intel(0): [DRI2] Setup complete
[ 86.677] (II) intel(0): [DRI2] DRI driver: i965
[ 86.677] (II) intel(0): [DRI2] VDPAU driver: i965
[ 86.677] (II) intel(0): direct rendering: DRI2 enabled
[ 86.677] (II) intel(0): hardware support for Present enabled
[ 86.677] (--) RandR disabled
[ 86.910] (II) AIGLX: enabled GLX_MESA_copy_sub_buffer
[ 86.910] (II) AIGLX: enabled GLX_ARB_create_context
[ 86.910] (II) AIGLX: enabled GLX_ARB_create_context_profile
[ 86.910] (II) AIGLX: enabled GLX_EXT_create_context_es2_profile
[ 86.910] (II) AIGLX: enabled GLX_INTEL_swap_event
[ 86.910] (II) AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control
[ 86.910] (II) AIGLX: enabled GLX_EXT_framebuffer_sRGB
[ 86.910] (II) AIGLX: enabled GLX_ARB_fbconfig_float
[ 86.910] (II) AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects
[ 86.910] (II) AIGLX: enabled GLX_ARB_create_context_robustness
[ 86.910] (II) AIGLX: Loaded and initialized i965
[ 86.910] (II) GLX: Initialized DRI2 GL provider for screen 0
[ 86.936] (II) intel(0): switch to mode 1366x768@60.0 on eDP1 using pipe 0, position (0, 0), rotation normal, reflection none
[ 86.943] (II) intel(0): Setting screen physical size to 361 x 203
[ 87.287] (II) config/udev: Adding input device Power Button (/dev/input/event2)
[ 87.287] (**) Power Button: Applying InputClass "evdev keyboard catchall"
[ 87.287] (II) LoadModule: "evdev"
[ 87.287] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[ 87.337] (II) Module evdev: vendor="X.Org Foundation"
[ 87.337] compiled for 1.16.2, module version = 2.9.1
[ 87.337] Module class: X.Org XInput Driver
[ 87.337] ABI class: X.Org XInput driver, version 21.0
[ 87.338] (II) systemd-logind: got fd for /dev/input/event2 13:66 fd 16 paused 1
[ 87.338] (II) systemd-logind: releasing fd for 13:66
[ 87.350] (II) config/udev: Adding input device Video Bus (/dev/input/event4)
[ 87.350] (**) Video Bus: Applying InputClass "evdev keyboard catchall"
[ 87.350] (II) systemd-logind: got fd for /dev/input/event4 13:68 fd 16 paused 1
[ 87.350] (II) systemd-logind: releasing fd for 13:68
[ 87.363] (II) config/udev: Adding input device Video Bus (/dev/input/event3)
[ 87.363] (**) Video Bus: Applying InputClass "evdev keyboard catchall"
[ 87.364] (II) systemd-logind: got fd for /dev/input/event3 13:67 fd 16 paused 1
[ 87.364] (II) systemd-logind: releasing fd for 13:67
[ 87.376] (II) config/udev: Adding input device Lid Switch (/dev/input/event0)
[ 87.377] (II) No input driver specified, ignoring this device.
[ 87.377] (II) This device may have been added with another device file.
[ 87.377] (II) config/udev: Adding input device Sleep Button (/dev/input/event1)
[ 87.377] (**) Sleep Button: Applying InputClass "evdev keyboard catchall"
[ 87.377] (II) systemd-logind: got fd for /dev/input/event1 13:65 fd 16 paused 1
[ 87.377] (II) systemd-logind: releasing fd for 13:65
[ 87.390] (II) config/udev: Adding drm device (/dev/dri/card0)
[ 87.390] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 87.390] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 16 paused 1
[ 87.390] (EE) Error systemd-logind returned paused fd for drm node
[ 87.390] (II) systemd-logind: releasing fd for 226:0
[ 87.391] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=3 (/dev/input/event8)
[ 87.391] (II) No input driver specified, ignoring this device.
[ 87.391] (II) This device may have been added with another device file.
[ 87.391] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=7 (/dev/input/event9)
[ 87.391] (II) No input driver specified, ignoring this device.
[ 87.391] (II) This device may have been added with another device file.
[ 87.391] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=8 (/dev/input/event10)
[ 87.391] (II) No input driver specified, ignoring this device.
[ 87.391] (II) This device may have been added with another device file.
[ 87.391] (II) config/udev: Adding input device USB Camera (/dev/input/event14)
[ 87.391] (**) USB Camera: Applying InputClass "evdev keyboard catchall"
[ 87.392] (II) systemd-logind: got fd for /dev/input/event14 13:78 fd 17 paused 1
[ 87.392] (II) systemd-logind: releasing fd for 13:78
[ 87.416] (II) config/udev: Adding input device HDA Intel PCH Mic (/dev/input/event11)
[ 87.417] (II) No input driver specified, ignoring this device.
[ 87.417] (II) This device may have been added with another device file.
[ 87.417] (II) config/udev: Adding input device HDA Intel PCH Headphone (/dev/input/event12)
[ 87.417] (II) No input driver specified, ignoring this device.
[ 87.417] (II) This device may have been added with another device file.
[ 87.417] (II) config/udev: Adding input device Asus WMI hotkeys (/dev/input/event7)
[ 87.417] (**) Asus WMI hotkeys: Applying InputClass "evdev keyboard catchall"
[ 87.417] (II) systemd-logind: got fd for /dev/input/event7 13:71 fd 17 paused 1
[ 87.417] (II) systemd-logind: releasing fd for 13:71
[ 87.443] (II) config/udev: Adding input device AT Translated Set 2 keyboard (/dev/input/event5)
[ 87.443] (**) AT Translated Set 2 keyboard: Applying InputClass "evdev keyboard catchall"
[ 87.444] (II) systemd-logind: got fd for /dev/input/event5 13:69 fd 17 paused 1
[ 87.444] (II) systemd-logind: releasing fd for 13:69
[ 87.470] (II) config/udev: Adding input device ETPS/2 Elantech Touchpad (/dev/input/event13)
[ 87.470] (**) ETPS/2 Elantech Touchpad: Applying InputClass "evdev touchpad catchall"
[ 87.470] (**) ETPS/2 Elantech Touchpad: Applying InputClass "touchpad catchall"
[ 87.470] (**) ETPS/2 Elantech Touchpad: Applying InputClass "Default clickpad buttons"
[ 87.470] (II) LoadModule: "synaptics"
[ 87.470] (II) Loading /usr/lib/xorg/modules/input/synaptics_drv.so
[ 87.476] (II) Module synaptics: vendor="X.Org Foundation"
[ 87.476] compiled for 1.16.0, module version = 1.8.1
[ 87.476] Module class: X.Org XInput Driver
[ 87.476] ABI class: X.Org XInput driver, version 21.0
[ 87.476] (II) systemd-logind: got fd for /dev/input/event13 13:77 fd 17 paused 1
[ 87.476] (II) systemd-logind: releasing fd for 13:77
[ 87.510] (II) config/udev: Adding input device ETPS/2 Elantech Touchpad (/dev/input/mouse0)
[ 87.510] (**) ETPS/2 Elantech Touchpad: Ignoring device from InputClass "touchpad ignore duplicates"
[ 87.510] (II) config/udev: Adding input device PC Speaker (/dev/input/event6)
[ 87.510] (II) No input driver specified, ignoring this device.
[ 87.510] (II) This device may have been added with another device file.Any advice on how to solve this?
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I was able to login after restarting xorg via ssh
I still do not know the cause of the error, though. I guess I will report a bug regarding this dmesg trace:
[ 683.019927] [drm:ivybridge_set_fifo_underrun_reporting] *ERROR* uncleared fifo underrun on pipe A
[ 683.019978] [drm:ivb_err_int_handler] *ERROR* Pipe A FIFO underrunOffline