Xorg slowness, freezing and crashing with external monitor, Thinkpad w/ Optimus (GM107GLM [Quadro M2000M])

mxmilkiib · February 10, 2023, 5:29am

I usually have my ThinkPad P50 in a dock and use an external monitor that is connected to the dock with the laptop sceen disabled.

A couple of driver releases ago IIRC (a number of months ago anyway), 3D apps started running really slow. glxgears, Steam UI, mpv and VLC, games, were all going at a very low and juddery fps.

I then realised that if I had the external monitor be a clone of the laptop screen then 3D fps wouldn’t tank. But then X11 started pausing for a few seconds on the external screen and then catching up, but crashing eventually, or sometimes the external screen image would freeze but the laptop screen could still be used.

The Xorg error on crash is below.

nvidia-bug-report.log.gz (2.2 MB)

% inxi -F n
System:
  Host: red Kernel: 6.1.10-zen1-1-zen arch: x86_64 bits: 64 Desktop: awesome
    v: 4.3 Distro: Arch Linux
Machine:
  Type: Laptop System: LENOVO product: 20EN0006UK v: ThinkPad P50
    serial: <superuser required>
  Mobo: LENOVO model: 20EN0006UK v: SDK0J40705 WIN
    serial: <superuser required> UEFI-[Legacy]: LENOVO v: N1EET94W (1.67 )
    date: 12/10/2021
Battery:
  ID-1: BAT0 charge: 59.1 Wh (76.0%) condition: 77.8/90.0 Wh (86.4%)
    volts: 11.4 min: 11.2
  ID-2: hidpp_battery_0 charge: 98% condition: N/A
CPU:
  Info: quad core model: Intel Core i7-6820HQ bits: 64 type: MT MCP cache:
    L2: 1024 KiB
  Speed (MHz): avg: 2700 min/max: 800/2700 cores: 1: 2701 2: 2700 3: 2700
    4: 2700 5: 2700 6: 2704 7: 2700 8: 2700
Graphics:
  Device-1: Intel HD Graphics 530 driver: i915 v: kernel
  Device-2: NVIDIA GM107GLM [Quadro M2000M] driver: nvidia v: 525.85.05
  Device-3: Acer ThinkPad P50 Integrated Camera type: USB driver: uvcvideo
  Display: server: X.Org v: 21.1.7 with: Xwayland v: 22.1.7 driver: X:
    loaded: modesetting,nvidia dri: iris gpu: i915,nvidia,nvidia-nvswitch
    resolution: 1: N/A 2: 1920x1080~60Hz 3: N/A
  API: OpenGL v: 4.6.0 NVIDIA 525.85.05 renderer: Quadro M2000M/PCIe/SSE2
Audio:
  Device-1: Intel 100 Series/C230 Series Family HD Audio driver: snd_hda_intel
  Device-2: NVIDIA GM107 High Definition Audio [GeForce 940MX]
    driver: snd_hda_intel
  Sound API: ALSA v: k6.1.10-zen1-1-zen running: yes
  Sound Server-1: PipeWire v: 0.3.65 running: yes
Network:
  Device-1: Intel Ethernet I219-LM driver: e1000e
  IF: net0 state: up speed: 100 Mbps duplex: full mac: c8:5b:76:bf:43:96
  Device-2: Intel Wireless 8260 driver: iwlwifi
  IF: wlan0 state: up mac: f4:8c:50:5a:fc:8f
Bluetooth:
  Device-1: Intel Bluetooth wireless interface type: USB driver: btusb
  Report: bt-adapter ID: hci0 state: up address: F4:8C:50:5A:FC:93
Drives:
  Local Storage: total: 1.14 TiB used: 840.02 GiB (71.8%)
  ID-1: /dev/sda vendor: SanDisk model: SD8TN8U256G1001 size: 238.47 GiB
  ID-2: /dev/sdb vendor: Crucial model: CT1000MX500SSD1 size: 931.51 GiB
Partition:
  ID-1: / size: 1.08 TiB used: 840.02 GiB (76.0%) fs: btrfs dev: /dev/sda1
Swap:
  ID-1: swap-1 type: partition size: 64 GiB used: 0 KiB (0.0%) dev: /dev/sdb1
Sensors:
  System Temperatures: cpu: 55.0 C pch: 48.0 C mobo: N/A
  Fan Speeds (RPM): fan-1: 3087 fan-2: 3083
Info:
  Processes: 314 Uptime: 10m Memory: 62.19 GiB used: 7.44 GiB (12.0%)
  Shell: Zsh inxi: 3.3.25

% glxinfo | grep direct
direct rendering: Yes
    GL_AMD_multi_draw_indirect, GL_AMD_seamless_cubemap_per_texture, 
    GL_ARB_direct_state_access, GL_ARB_draw_buffers, 
    GL_ARB_draw_indirect, GL_ARB_draw_instanced, GL_ARB_enhanced_layouts, 
    GL_ARB_half_float_vertex, GL_ARB_imaging, GL_ARB_indirect_parameters, 
    GL_ARB_multi_draw_indirect, GL_ARB_multisample, GL_ARB_multitexture, 
    GL_EXT_depth_bounds_test, GL_EXT_direct_state_access, 
    GL_NV_alpha_to_coverage_dither_control, GL_NV_bindless_multi_draw_indirect, 
    GL_NV_bindless_multi_draw_indirect_count, GL_NV_bindless_texture, 
    GL_AMD_multi_draw_indirect, GL_AMD_seamless_cubemap_per_texture, 
    GL_ARB_direct_state_access, GL_ARB_draw_buffers, 
    GL_ARB_draw_indirect, GL_ARB_draw_instanced, GL_ARB_enhanced_layouts, 
    GL_ARB_half_float_vertex, GL_ARB_imaging, GL_ARB_indirect_parameters, 
    GL_ARB_multi_draw_indirect, GL_ARB_multisample, GL_ARB_multitexture, 
    GL_EXT_depth_bounds_test, GL_EXT_direct_state_access, 
    GL_NV_alpha_to_coverage_dither_control, GL_NV_bindless_multi_draw_indirect, 
    GL_NV_bindless_multi_draw_indirect_count, GL_NV_bindless_texture, 
    GL_EXT_memory_object, GL_EXT_memory_object_fd, GL_EXT_multi_draw_indirect, 
% glxinfo | grep "OpenGL renderer"
OpenGL renderer string: Quadro M2000M/PCIe/SSE2

Xorg log:

...
[    38.832] (II) NVIDIA(G0): Setting mode "DP-1-3.1: nvidia-auto-select @1920x1080 +0+0 {AllowGSYNC=Off, ViewPortIn=1920x1080, ViewPortOut=1920x1080+0+0}"
[    38.915] (II) NVIDIA(G0): Setting mode "DP-1-3.1: nvidia-auto-select @1920x1080 +0+0 {AllowGSYNC=Off, ViewPortIn=1920x1080, ViewPortOut=1920x1080+0+0}, DP-1-1: nvidia-auto-select @1920x1080 +0+0 {AllowGSYNC=Off, ViewPortIn=1920x1080, ViewPortOut=1920x1080+0+0}"
[    39.234] (II) modeset(0): EDID vendor "LGD", prod id 1359
[    39.234] (II) modeset(0): Printing DDC gathered Modelines:
[    39.234] (II) modeset(0): Modeline "1920x1080"x0.0  138.70  1920 1968 2000 2080  1080 1083 1088 1111 +hsync -vsync (66.7 kHz eP)
[    39.234] (II) modeset(0): Modeline "1920x1080"x0.0  114.46  1920 1968 2000 2164  1080 1083 1088 1102 +hsync -vsync (52.9 kHz e)
[    39.250] (II) modeset(0): EDID vendor "LGD", prod id 1359
[    39.250] (II) modeset(0): Printing DDC gathered Modelines:
[    39.251] (II) modeset(0): Modeline "1920x1080"x0.0  138.70  1920 1968 2000 2080  1080 1083 1088 1111 +hsync -vsync (66.7 kHz eP)
[    39.251] (II) modeset(0): Modeline "1920x1080"x0.0  114.46  1920 1968 2000 2164  1080 1083 1088 1102 +hsync -vsync (52.9 kHz e)
[    39.251] (--) NVIDIA(GPU-0): SFX2K8 4TO2 (DFP-3.1): connected
[    39.251] (--) NVIDIA(GPU-0): SFX2K8 4TO2 (DFP-3.1): Internal DisplayPort
[    39.251] (--) NVIDIA(GPU-0): SFX2K8 4TO2 (DFP-3.1): 960.0 MHz maximum pixel clock
[    39.251] (--) NVIDIA(GPU-0): 
[    39.253] (--) NVIDIA(GPU-0): DFP-0: disconnected
[    39.253] (--) NVIDIA(GPU-0): DFP-0: Internal TMDS
[    39.254] (--) NVIDIA(GPU-0): DFP-0: 165.0 MHz maximum pixel clock
[    39.254] (--) NVIDIA(GPU-0): 
[    39.443] (--) NVIDIA(GPU-0): DELL P2719H (DFP-1): connected
[    39.443] (--) NVIDIA(GPU-0): DELL P2719H (DFP-1): Internal TMDS
[    39.443] (--) NVIDIA(GPU-0): DELL P2719H (DFP-1): 300.0 MHz maximum pixel clock
[    39.443] (--) NVIDIA(GPU-0): 
[    39.443] (--) NVIDIA(GPU-0): DFP-2: disconnected
[    39.443] (--) NVIDIA(GPU-0): DFP-2: Internal TMDS
[    39.443] (--) NVIDIA(GPU-0): DFP-2: 165.0 MHz maximum pixel clock
[    39.443] (--) NVIDIA(GPU-0): 
[    39.443] (--) NVIDIA(GPU-0): DFP-3: disconnected
[    39.443] (--) NVIDIA(GPU-0): DFP-3: Internal DisplayPort
[    39.443] (--) NVIDIA(GPU-0): DFP-3: 960.0 MHz maximum pixel clock
[    39.443] (--) NVIDIA(GPU-0): 
[    39.443] (--) NVIDIA(GPU-0): DFP-4: disconnected
[    39.443] (--) NVIDIA(GPU-0): DFP-4: Internal DisplayPort
[    39.443] (--) NVIDIA(GPU-0): DFP-4: 960.0 MHz maximum pixel clock
[    39.443] (--) NVIDIA(GPU-0): 
[    39.443] (--) NVIDIA(GPU-0): DFP-5: disconnected
[    39.443] (--) NVIDIA(GPU-0): DFP-5: Internal DisplayPort
[    39.443] (--) NVIDIA(GPU-0): DFP-5: 960.0 MHz maximum pixel clock
[    39.443] (--) NVIDIA(GPU-0): 
[   393.440] (II) NVIDIA(G0): Setting mode "DP-1-3.1: nvidia-auto-select @1920x1080 +0+0 {AllowGSYNC=Off, ViewPortIn=1920x1080, ViewPortOut=1920x1080+0+0}"
[   479.722] (EE) 
[   479.722] (EE) Backtrace:
[   479.723] (EE) 0: /usr/lib/Xorg (dri3_send_open_reply+0xdd) [0x55861cc8a9ad]
[   479.723] (EE) 1: /usr/lib/libc.so.6 (__sigaction+0x50) [0x7fb7a139cf50]
[   479.724] (EE) 2: /usr/lib/libc.so.6 (pthread_key_delete+0x14c) [0x7fb7a13eb8ec]
[   479.725] (EE) 3: /usr/lib/libc.so.6 (gsignal+0x18) [0x7fb7a139cea8]
[   479.725] (EE) 4: /usr/lib/libc.so.6 (abort+0xd7) [0x7fb7a138653d]
[   479.726] (EE) unw_get_proc_name failed: no unwind info found [-10]
[   479.726] (EE) 5: /usr/lib/dri/iris_dri.so (?+0x0) [0x7fb79e099aa3]
[   479.726] (EE) 6: /usr/lib/dri/iris_dri.so (nouveau_drm_screen_create+0x489890) [0x7fb79eddffd0]
[   479.727] (EE) 7: /usr/lib/dri/iris_dri.so (__driDriverGetExtensions_d3d12+0xb7e36) [0x7fb79e161356]
[   479.727] (EE) 8: /usr/lib/xorg/modules/libglamoregl.so (glamor_block_handler+0xe4) [0x7fb7a066ddd4]
[   479.727] (EE) unw_get_proc_name failed: no unwind info found [-10]
[   479.727] (EE) 9: /usr/lib/xorg/modules/drivers/modesetting_drv.so (?+0x0) [0x7fb7a09f41b7]
[   479.728] (EE) 10: /usr/lib/Xorg (BlockHandler+0xb4) [0x55861cbab6a4]
[   479.728] (EE) 11: /usr/lib/Xorg (WaitForSomething+0x197) [0x55861cc7de67]
[   479.728] (EE) 12: /usr/lib/Xorg (SProcXkbDispatch+0x1c93) [0x55861cb6d36f]
[   479.729] (EE) 13: /usr/lib/libc.so.6 (__libc_init_first+0x90) [0x7fb7a1387790]
[   479.729] (EE) 14: /usr/lib/libc.so.6 (__libc_start_main+0x8a) [0x7fb7a138784a]
[   479.729] (EE) 15: /usr/lib/Xorg (_start+0x25) [0x55861cb6e2b5]

journald:

...
Feb 10 00:30:40 red kernel: nvidia-modeset: ERROR: GPU:0: Idling display engine timed out: 0x0000947d:0:0:1119
Feb 10 00:30:42 red kernel: nvidia-modeset: ERROR: GPU:0: Idling display engine timed out: 0x0000927c:0:0:1128
Feb 10 00:30:44 red kernel: nvidia-modeset: ERROR: GPU:0: Idling display engine timed out: 0x0000947d:0:0:1119
Feb 10 00:30:46 red kernel: nvidia-modeset: ERROR: GPU:0: Idling display engine timed out: 0x0000927c:0:0:1128
Feb 10 00:30:52 red root[2355]: ACPI group/action undefined: jack/lineout / LINEOUT
Feb 10 00:30:52 red root[2357]: ACPI group/action undefined: jack/videoout / VIDEOOUT
Feb 10 00:30:52 red root[2359]: ACPI group/action undefined: jack/lineout / LINEOUT
Feb 10 00:30:52 red root[2361]: ACPI group/action undefined: jack/videoout / VIDEOOUT
Feb 10 00:30:52 red root[2363]: ACPI group/action undefined: jack/lineout / LINEOUT
Feb 10 00:30:52 red root[2365]: ACPI group/action undefined: jack/videoout / VIDEOOUT
Feb 10 00:30:52 red root[2367]: ACPI group/action undefined: jack/lineout / LINEOUT
Feb 10 00:30:52 red root[2369]: ACPI group/action undefined: jack/videoout / VIDEOOUT
Feb 10 00:31:42 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:31:42 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:31:43 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:31:43 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:33:52 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:34:19 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:34:19 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:34:54 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
Feb 10 00:34:54 red kernel: [drm:nv_drm_fence_context_create_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate fence signaling event
...

generix · February 10, 2023, 10:00am

The effect that the output comes down to a crawl when the lid is closed is a know bug that hasn’t been fixed so far.
https://forums.developer.nvidia.com/t/525-60-11-breaks-composited-desktop-on-x11-if-laptop-lid-is-closed/236181?u=generix
It shouldn’t crash on mirror, nevertheless. In your Xorg logs, the modesetting driver has an issue:

[    12.813] (EE) modeset: Failed to load module "glamoregl" (module does not exist, 0)
[    12.813] (EE) modeset(0): Failed to load glamor module.

The module should be provided by the xorg-server package and reside in /usr/lib/xorg/modules/libglamoregl.so
https://archlinux.org/packages/extra/x86_64/xorg-server/
I think the path is missing from what you set in xorg.conf, rather delete it.

mxmilkiib · February 10, 2023, 2:14pm

A-ha, that’s interesting, thank you.

I don’t run a compositor, WM only, no DE, so I didn’t notice with all basic desktop apps (I can’t run Picom because it flashes).

That maybe also explains why sometimes some UI changes (opening a popup, menu, resizing, etc.) causes a very small pause; I guess maybe that Qt or GTK is doing something roughly similar in terms of processing path…

In terms of Xorg config, I don’t have an xorg.conf, though I do use Optimus Manager, running almost exclusively in Hybrid mode (for 4 screens max).

The /etc/X11/xorg.conf.d/10-optimus-manager.conf it generated:

Section "Files"
	ModulePath "/usr/lib/nvidia"
	ModulePath "/usr/lib32/nvidia"
	ModulePath "/usr/lib32/nvidia/xorg/modules"
	ModulePath "/usr/lib32/xorg/modules"
	ModulePath "/usr/lib64/nvidia/xorg/modules"
	ModulePath "/usr/lib64/nvidia/xorg"
	ModulePath "/usr/lib64/xorg/modules"
EndSection

Section "ServerLayout"
	Identifier "layout"
	Screen 0 "integrated"
	Inactive "nvidia"
	Option "AllowNVIDIAGPUScreens"
EndSection

Section "Device"
	Identifier "integrated"
	Driver "modesetting"
	BusID "PCI:0:2:0"
	Option "DRI" "3"
EndSection

Maybe I have misunderstood and misconfigured something within it? Or I am missing some other needed config element?

/etc/optimus-manager/optimus-manager.conf;

[amd]
DRI=3
driver=modesetting
tearfree=

[intel]
DRI=3
accel=
driver=modesetting
modeset=yes
tearfree=

[nvidia]
DPI=96
PAT=yes
allow_external_gpus=no
dynamic_power_management=no
ignore_abi=yes
modeset=yes
options=overclocking

[optimus]
auto_logout=yes
pci_power_control=no
pci_remove=no
pci_reset=no
startup_auto_battery_mode=integrated
startup_auto_extpower_mode=nvidia
startup_mode=hybrid
switching=none

libglamoregl.so exists, 228K -rwxr-xr-x 1 root root 225K Feb 7 07:58 /usr/lib/xorg/modules/libglamoregl.so

Edit: I see now there is no /usr/lib/xorg/modules path defined, I’ll try that… though, if libglamoregl.so isn’t present at that path, the computer just doesn’t see any external screens.

Edit2: oh, % ll /usr/lib64/xorg/modules/libglamoregl.so 228K -rwxr-xr-x 1 root root 225K Feb 7 07:58 /usr/lib64/xorg/modules/libglamoregl.so

mxmilkiib · February 10, 2023, 9:59pm

For some reason, AFAIU, that /var/log/Xorg.0.log is from earlier this week, when I was testing by temporaraly moving libglamor. (Someone mentioned that… radical option on the Arch wiki talk page.)

Here’s a fresh log with a crash.

Xorg.0.log (62.9 KB)

generix · February 11, 2023, 1:48pm

That Arch wiki page is heavily outdated and even deadly when using the nvidia gpu in offload mode.
Looking at the crash in the new log, this rather seems to be a mesa bug, expecting running nouveau.
Please delete your xorg.conf, at least the DRI 3 entry.

mxmilkiib · February 12, 2023, 10:42pm

Do you mean the Arch wiki article, or just the article talk page?

No, I’m not using Nouveau, it’s too slow.

As I said, I don’t have an xorg.conf.

The DRI 3 option is for the integrated graphics device. I’ll unset that anyway.

Apologies, I realise now I somehow managed to cut off the second half of /etc/X11/xorg.conf.d/10-optimus-manager.conf, here is the full config, as generated by Optimus Manager;

Section "Files"
	ModulePath "/usr/lib/nvidia"
	ModulePath "/usr/lib32/nvidia"
	ModulePath "/usr/lib32/nvidia/xorg/modules"
	ModulePath "/usr/lib32/xorg/modules"
	ModulePath "/usr/lib64/nvidia/xorg/modules"
	ModulePath "/usr/lib64/nvidia/xorg"
	ModulePath "/usr/lib64/xorg/modules"
EndSection

Section "ServerLayout"
	Identifier "layout"
	Screen 0 "integrated"
	Inactive "nvidia"
	Option "AllowNVIDIAGPUScreens"
EndSection

Section "Device"
	Identifier "integrated"
	Driver "modesetting"
	BusID "PCI:0:2:0"
	Option "DRI" "3"
EndSection

Section "Screen"
	Identifier "integrated"
	Device "integrated"
EndSection

Section "Device"
	Identifier "nvidia"
	Driver "nvidia"
	BusID "PCI:1:0:0"
	Option "Coolbits" "28"
EndSection

Section "Screen"
	Identifier "nvidia"
	Device "nvidia"
EndSection

FWIW I can file a Mesa bug, but this problem (and the other one came with one) coincided with Nvidia driver updates.

generix · February 13, 2023, 11:13am

The talk page where you got the info to remove libglamor from.

You’re not using nouveau but the backtrace of the Xorg server has a reference to it /usr/lib/dri/iris_dri.so (nouveau_drm_screen_create+0x489890) so it seems mesa is expecting it.

Yes, and only the igpu driver is crashing, not the nvidia driver.

mxmilkiib · March 4, 2023, 2:41pm

Aaaaha right, yes, thank youI It was the Intel crashing X, and it was having that option set to 3 rather than 2 causing it; there has been no crash since the change.

My problem now is that the external screen image freezes. Timing may differ, I’m not sure how to replicate.

If playing a game, and there is a slowdown judder - I just stop all input so things can calm down before I continue pushing forward - that can avoid a freeze.

Sometimes there are juddery freezes for very short times just, say, typing in Firefox.

External screen just by itself is just a big no no.

Also, rotating a third screen in X11 is broken, the output orientation is wrong.