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#1 2024-09-13 15:25:11
- saturnteam
- Member
- Registered: 2019-05-20
- Posts: 9
HDMI TV endless reconnection
Hi!
I use lenovo thinkpad with nvidia and intel gpu.
nvidia optimus settings is to use nvidia only.
xorg log is full of connection and disconnection:
[ 215.989] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): connected
[ 215.989] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): Internal TMDS
[ 215.989] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): 600.0 MHz maximum pixel clock
[ 215.989] (--) NVIDIA(GPU-0):
[ 215.991] (II) NVIDIA(0): Setting mode "NULL"
[ 218.095] (--) NVIDIA(GPU-0): DFP-4: disconnected
[ 218.095] (--) NVIDIA(GPU-0): DFP-4: Internal TMDS
[ 218.095] (--) NVIDIA(GPU-0): DFP-4: 165.0 MHz maximum pixel clock
[ 218.095] (--) NVIDIA(GPU-0):
[ 219.149] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): connected
[ 219.149] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): Internal TMDS
[ 219.149] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): 600.0 MHz maximum pixel clock
[ 219.149] (--) NVIDIA(GPU-0):
[ 220.324] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): connected
[ 220.324] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): Internal TMDS
[ 220.324] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): 600.0 MHz maximum pixel clock
[ 220.324] (--) NVIDIA(GPU-0):
[ 220.390] (--) NVIDIA(GPU-0): DFP-4: connected
[ 220.390] (--) NVIDIA(GPU-0): DFP-4: Internal TMDS
[ 220.390] (--) NVIDIA(GPU-0): DFP-4: 165.0 MHz maximum pixel clock
[ 220.390] (--) NVIDIA(GPU-0):
[ 221.294] (--) NVIDIA(GPU-0): DFP-4: disconnected
[ 221.294] (--) NVIDIA(GPU-0): DFP-4: Internal TMDS
[ 221.294] (--) NVIDIA(GPU-0): DFP-4: 165.0 MHz maximum pixel clock
[ 221.294] (--) NVIDIA(GPU-0):
[ 223.280] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): connected
[ 223.280] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): Internal TMDS
[ 223.280] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): 600.0 MHz maximum pixel clock
[ 223.280] (--) NVIDIA(GPU-0):
[ 224.418] (II) NVIDIA(0): Setting mode "HDMI-0: nvidia-auto-select @3840x2160 +0+0 {ViewPortIn=3840x2160, ViewPortOut=3840x2160+0+0}"
[ 230.396] (WW) NVIDIA: Wait for channel idle timed out.
[ 236.054] (WW) NVIDIA: Wait for channel idle timed out.
[ 236.692] (--) NVIDIA(GPU-0): DFP-4: disconnected
[ 236.692] (--) NVIDIA(GPU-0): DFP-4: Internal TMDS
[ 236.692] (--) NVIDIA(GPU-0): DFP-4: 165.0 MHz maximum pixel clock
[ 236.692] (--) NVIDIA(GPU-0):
[ 237.565] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): connected
[ 237.565] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): Internal TMDS
[ 237.565] (--) NVIDIA(GPU-0): SAMSUNG (DFP-4): 600.0 MHz maximum pixel clock
[ 237.565] (--) NVIDIA(GPU-0): journalctl -b:
Sep 13 18:13:24 archlinux kscreen_backend_launcher[5125]: kscreen.xrandr: XRandROutput 445 update
m_connected: 1
m_crtc QObject(0x0)
CRTC: 0
MODE: 0
Connection: 1
Sep 13 18:13:24 archlinux kscreen_backend_launcher[5125]: kscreen.xrandr: Output 445 : connected = false , enabled = false
Sep 13 18:13:24 archlinux kscreen_backend_launcher[5125]: kscreen.xrandr: XRandROutput 446 update
m_connected: 1
m_crtc QObject(0x0)
CRTC: 0
MODE: 0
Connection: 1
Sep 13 18:13:24 archlinux kscreen_backend_launcher[5125]: kscreen.xrandr: Output 446 : connected = false , enabled = false
Sep 13 18:13:24 archlinux kscreen_backend_launcher[5125]: kscreen.xrandr: XRandROutput 447 update
m_connected: 1
m_crtc QObject(0x0)
CRTC: 0
MODE: 0
Connection: 1
Sep 13 18:13:24 archlinux kscreen_backend_launcher[5125]: kscreen.xrandr: Output 447 : connected = false , enabled = falseI attempted to connect a small 1024x700 screen, and it connected without any problems.
The laptop also successfully connected on Windows.
I experienced this issue about six months ago, and occasionally the laptop would connect to the screen, but now it doesn't connect at all.
On Wayland I can't connect any screen.
Both nvidia and nvidia-open are not working with external screen.
Kernel parameters:
GRUB_CMDLINE_LINUX_DEFAULT="loglevel=3 ibt=off nvidia_drm.modeset=1 nvidia_drm.fbdev=1 NVreg_PreserPreserveVideoMemoryAllocations=1"How can I fix this?
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#2 2024-09-13 15:47:02
- seth
- Member
- Registered: 2012-09-03
- Posts: 59,718
Re: HDMI TV endless reconnection
Cable?
The signal might only be good enough for https://wiki.archlinux.org/title/NVIDIA … ubsampling
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#3 2024-09-13 16:03:04
- saturnteam
- Member
- Registered: 2019-05-20
- Posts: 9
Re: HDMI TV endless reconnection
Cable?
The signal might only be good enough for https://wiki.archlinux.org/title/NVIDIA … ubsampling
I've tried three cables and different ports
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#4 2024-09-14 19:55:58
- seth
- Member
- Registered: 2012-09-03
- Posts: 59,718
Re: HDMI TV endless reconnection
Enable https://wiki.archlinux.org/title/NVIDIA … de_setting - use the "nvidia_drm.modeset=1" kernel parameter (modprobe.conf won't do!)
Then w/ the troublesome monitor attached post the output of
for OUT in /sys/class/drm/card*; do echo $OUT; edid-decode $OUT/edid; echo "================="; doneYou'll need https://aur.archlinux.org/packages/edid-decode-git
Also please test the behavior on a bare-bones X11 session (openbox, icewm, i3) and esp. w/o output managing daemon (kscreen, autorandr - every fat desktop environment has one, hence the bare bones stuff)
Ceterum censeo:
The laptop also successfully connected on Windows.
3rd link below. Mandatory.
Disable it (it's NOT the BIOS setting!) and reboot windows and linux twice for voodo reasons.
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