GNU bug report logs - #59279
MPV does not work on X11

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Kristian Lein-Mathisen <kristianlein <at> gmail.com>
Subject: bug#59339: closed (Re: bug#59378: [PATCH] gnu: mpv: Add
 libxpresent input.)
Date: Tue, 22 Nov 2022 07:52:02 +0000

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Your bug report

#59279: mpv: possible misconfiguration

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 59339 <at> debbugs.gnu.org.

-- 
59279: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=59279
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Ludovic Courtès <ludo <at> gnu.org>
To: Martin Marshall <law <at> martinmarshall.com>
Cc: 59378-done <at> debbugs.gnu.org, 59279-done <at> debbugs.gnu.org
Subject: Re: bug#59378: [PATCH] gnu: mpv: Add libxpresent input.
Date: Tue, 22 Nov 2022 08:51:26 +0100

Hi,

Martin Marshall <law <at> martinmarshall.com> skribis:

> Fixes issue 59279 "MPV does not work on X11".
>
> * gnu/packages/video.scm (mpv)[inputs]: Add libxpresent.

Works for me too.  Applied, thanks!

Ludo’.

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From: Kristian Lein-Mathisen <kristianlein <at> gmail.com>
To: bug-guix <at> gnu.org
Subject: mpv: possible misconfiguration
Date: Thu, 17 Nov 2022 19:08:39 +0100

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Hi,

I'm using mpv a lot and on the latest guix pull it stopped working with
this error message:

klm <at> pal ~ ➤ mpv
https://download.blender.org/durian/trailer/sintel_trailer-480p.ogv
[ffmpeg/demuxer] ogg: Broken file, keyframe not correctly marked.
 (+) Video --vid=1 'Sintel Trailer' (theora 854x480)
 (+) Audio --aid=1 (vorbis 2ch 48000Hz)
[vo/gpu] VT_GETMODE failed: Inappropriate ioctl for device
[vo/gpu/opengl] Failed to set up VT switcher. Terminal switching will be
unavailable.
[vo/gpu] Failed to commit ModeSetting atomic request (-13)
[vo/gpu/opengl] Failed to set CRTC for connector 95: Permission denied
Error opening/initializing the selected video_out (--vo) device.
Video: no video

Exiting... (Errors when loading file)
klm <at> pal ~ ➤ readlink $(which mpv)
/gnu/store/3i6dmnksdr4sif66hlgh1g0dxfqwxzsi-mpv-0.35.0/bin/mpv

After some looking around a bit, I found that gpu-contexts have changed:

klm <at> pal ~ ➤ mpv -gpu-context help
GPU contexts (APIs):
    auto (autodetect)
    wayland (opengl)
    drm (opengl)
klm <at> pal ~ ➤ /gnu/store/2chvq95z20s7xihyayiayiy40fvyqn0g-mpv-0.34.1/bin/mpv
-gpu-context help
GPU contexts (APIs):
    auto (autodetect)
    wayland (opengl)
    x11egl (opengl)
    drm (opengl)

I don't know if it's relevant but may help tracking the cause of this
problem down. mpv 0.34.0 works without problems.
I found this recent patch on mpv: https://issues.guix.gnu.org/28457

Is it possible that mpv's default configuration has changed and is now
causing problems for old X11 setups?
I'm in integrated Intel graphics, Linux-Libre 6.0.8-gnu #1 SMP
PREEMPT_DYNAMIC 1 x86_64 GNU/Linux

Thanks,
K.

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