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  1. Funtoo Linux
  2. FL-7296

OpenGL output in media-video/vlc causes intermittent system hang

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    • Resolution: Fixed
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      1. In VLC: Tools > Preferences > Video. Set the Display Output to "OpenGL Video Output"
      2. Play a video.

      The issue is intermittent. HD video seems to trigger the problem more often.

      Suggestion for next time: try to run dmesg -w in an SSH session.
      Show
      1. In VLC: Tools > Preferences > Video. Set the Display Output to "OpenGL Video Output" 2. Play a video. The issue is intermittent. HD video seems to trigger the problem more often. Suggestion for next time: try to run dmesg -w in an SSH session.
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      Could be:
      * Bad driver in kernel or xorg (kernelspace should not hang)
      * VLC bug (I have yet to have a problem in another application, and I run many desktop applications. glxgears runs fine too.)
      * QT bug
      Show
      Could be: * Bad driver in kernel or xorg (kernelspace should not hang) * VLC bug (I have yet to have a problem in another application, and I run many desktop applications. glxgears runs fine too.) * QT bug
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      [I-O] [ ] gnome-base/gnome-3.36.2:0
      [I-O] [ ] media-libs/mesa-20.0.8:0
      [I-O] [ ] media-video/gnome-video-effects-0.5.0:0
      [I-O] [ ] media-video/vlc-3.0.8:0/5-9
      [I-O] [ ] x11-apps/mesa-progs-8.4.0:0
      [I-O] [ ] x11-base/xorg-drivers-1.20:0
      [I-O] [ ] x11-base/xorg-proto-2019.2:0
      [I-O] [ ] x11-base/xorg-server-1.20.8:0/1.20.8
      [I-O] [ ] x11-base/xorg-x11-7.4-r3:0
      [I-O] [ ] x11-drivers/xf86-video-amdgpu-19.1.0-r1:0
      [I-O] [ ] x11-drivers/xf86-video-ati-19.1.0-r1:0
      [I-O] [ ] x11-drivers/xf86-video-fbdev-0.5.0-r1:0
      [I-O] [ ] x11-libs/libdrm-2.4.101:0
      [I-O] [ ] x11-proto/videoproto-2.3.3-r1:0/stub
      [IP-] [ ] sys-kernel/debian-sources-lts-4.19.118_p2:debian-sources-lts-4.19.118_p2


      Hardware: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Barts XT [Radeon HD 6870]

      Mix-ins set: gfxcard-amdgpu gfxcard-radeon

      VIDEO_CARDS="radeon amdgpu vulkan-amdgpu gallium-radeonsi radeonsi fbdev gallium-r600 osmesa r600 swrast vaapi vdpau xa xvmc"
      Show
      [I-O] [ ] gnome-base/gnome-3.36.2:0 [I-O] [ ] media-libs/mesa-20.0.8:0 [I-O] [ ] media-video/gnome-video-effects-0.5.0:0 [I-O] [ ] media-video/vlc-3.0.8:0/5-9 [I-O] [ ] x11-apps/mesa-progs-8.4.0:0 [I-O] [ ] x11-base/xorg-drivers-1.20:0 [I-O] [ ] x11-base/xorg-proto-2019.2:0 [I-O] [ ] x11-base/xorg-server-1.20.8:0/1.20.8 [I-O] [ ] x11-base/xorg-x11-7.4-r3:0 [I-O] [ ] x11-drivers/xf86-video-amdgpu-19.1.0-r1:0 [I-O] [ ] x11-drivers/xf86-video-ati-19.1.0-r1:0 [I-O] [ ] x11-drivers/xf86-video-fbdev-0.5.0-r1:0 [I-O] [ ] x11-libs/libdrm-2.4.101:0 [I-O] [ ] x11-proto/videoproto-2.3.3-r1:0/stub [IP-] [ ] sys-kernel/debian-sources-lts-4.19.118_p2:debian-sources-lts-4.19.118_p2 Hardware: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Barts XT [Radeon HD 6870] Mix-ins set: gfxcard-amdgpu gfxcard-radeon VIDEO_CARDS="radeon amdgpu vulkan-amdgpu gallium-radeonsi radeonsi fbdev gallium-r600 osmesa r600 swrast vaapi vdpau xa xvmc"

      Video hangs, audio loops, then black screen, then the system goes unresponsive. It's impossible to switch to a virtual console. The rescue SSH session I had open on a remote system also hung. Pinging the host from the remote system didn't work either, so this was a hard hang that required resetting the system.

      So far, the problem seems to be limited to VLC's OpenGL video module. Also, this was an existing problem before core-gl-kit-2.0. I didn't look into it much until now. (Workaround is to set VLC video output to the older-school XVideo.)

      (See repro steps and facts for hardware and driver info.)

            Unassigned Unassigned
            klipkyle klipkyle
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              Created:
              Updated:
              Resolved: