Comment # 1 on bug 1105306 from Ulrich Windl

When GMplayer plays the file (it works1), the following messages are output:
> gmplayer Videos/Screencast\ from\ 08-20-2018\ 09\:24\:01\ AM.webm 
MPlayer 1.2.r38008-Packman-4.8 (C) 2000-2017 MPlayer Team
do_connect: could not connect to socket
connect: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
G_FILENAME_ENCODING=@locale or G_BROKEN_FILENAMES isn't supported,
encoding must be explicitly specified in G_FILENAME_ENCODING.

Playing /home/wiu09524/Videos/Screencast from 08-20-2018 09:24:01 AM.webm.
libavformat version 57.83.100 (external)
libavformat file format detected.
[lavf] stream 0: video (vp9), -vid 0, Video
VIDEO:  [VP90]  1680x1050  0bpp  1000.000 fps    0.0 kbps ( 0.0 kbyte/s)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 57.107.100 (external)
Selected video codec: [ffvp9] vfm: ffmpeg (FFmpeg VP9)
==========================================================================
Clip info:
 encoder: GStreamer matroskamux version 1.8.3
 creation_time: 2018-08-20T07:24:08.000000Z
Load subtitles in /home/wiu09524/Videos/
Audio: no sound
Starting playback...
Movie-Aspect is 1.60:1 - prescaling to correct movie aspect.
VO: [xv] 1680x1050 => 1680x1050 Planar YV12  [zoom]
[ASPECT] Warning: No suitable new res found!
[ASPECT] Warning: No suitable new res found!
Movie-Aspect is 1.60:1 - prescaling to correct movie aspect.
VO: [xv] 1680x1050 => 1680x1050 Planar YV12  [zoom]
V:   0.3   0/  0 ??% ??% ??,?% 0 0                                              
[VD_FFMPEG] DRI failure.
V:  24.2   0/  0  6%  0%  0.0% 0 0                                              


Exiting... (Quit)