Package: src:linux Followup-For: Bug #949369 Dear Maintainer,
Confirmation of this bug, it seems to happen at random, i don't know if it a kernel issue or a nouveau issue from $grep -n3 chip /var/log/messages 15416-Apr 14 09:15:30 /usr/lib/gdm3/gdm-x-session[3388]: (--) modeset(0): HDMI max TMDS frequency 225000KHz 15417-Apr 14 09:15:38 kernel: [ 481.351289] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 15418-Apr 14 09:15:46 kernel: [ 489.351633] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 15419:Apr 14 09:15:46 kernel: [ 489.352390] i915 0000:00:02.0: Resetting chip for hang on rcs0 15420-Apr 14 09:15:46 /usr/lib/gdm3/gdm-x-session[3388]: (II) modeset(0): EDID vendor "DEL", prod id 16505 15421-Apr 14 09:15:46 /usr/lib/gdm3/gdm-x-session[3388]: (II) modeset(0): Using hsync ranges from config file 15422-Apr 14 09:15:46 /usr/lib/gdm3/gdm-x-session[3388]: (II) modeset(0): Using vrefresh ranges from config file # lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 10 (buster) Release: 10 Codename: buster # uname -v #1 SMP Debian 5.4.19-1~bpo10+1 (2020-03-09) $ lspci | grep ' VGA ' | cut -d" " -f 1 | xargs -i lspci -v -s {} 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile) (rev 02) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company UHD Graphics 630 (Mobile) Flags: bus master, fast devsel, latency 0, IRQ 154 Memory at e4000000 (64-bit, non-prefetchable) [size=16M] Memory at a0000000 (64-bit, prefetchable) [size=256M] I/O ports at 5000 [size=64] [virtual] Expansion ROM at 000c0000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: i915 Kernel modules: i915 01:00.0 VGA compatible controller: NVIDIA Corporation Device 1fb8 (rev a1) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device 860f Flags: bus master, fast devsel, latency 0, IRQ 207 Memory at e5000000 (32-bit, non-prefetchable) [size=16M] Memory at 80000000 (64-bit, prefetchable) [size=256M] Memory at 90000000 (64-bit, prefetchable) [size=32M] I/O ports at 4000 [size=128] Expansion ROM at e6080000 [disabled] [size=512K] Capabilities: <access denied> Kernel driver in use: nouveau Kernel modules: nouveau $ optirun glxinfo|egrep "OpenGL vendor|OpenGL renderer" [ 921.728466] [ERROR]Cannot access secondary GPU - error: [XORG] (EE) Unknown chipset: NV167 [ 921.728481] [ERROR]Aborting because fallback start is disabled. # lshw -C display *-display description: VGA compatible controller product: NVIDIA Corporation vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:01:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom configuration: driver=nouveau latency=0 resources: irq:207 memory:e5000000-e5ffffff memory:80000000-8fffffff memory:90000000-91ffffff ioport:4000(size=128) memory:e6080000-e60fffff *-display description: VGA compatible controller product: Intel Corporation vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 02 width: 64 bits clock: 33MHz capabilities: pciexpress msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:154 memory:e4000000-e4ffffff memory:a0000000-afffffff ioport:5000(size=64) memory:c0000-dffff Might help some people: https://gist.github.com/szpak/71081b40217fb27c7a565b8c7b972067 The same error happens with only the intel vga enabled in the bios, so this is not bumblebee or alike related. hth, Wim -- System Information: Debian Release: 10.3 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 5.4.0-0.bpo.4-amd64 (SMP w/16 CPU cores) Locale: LANG=nl_BE.UTF-8, LC_CTYPE=nl_BE.UTF-8 (charmap=UTF-8), LANGUAGE=nl_BE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled