Package: xcompmgr Version: 1.1.8-1 Severity: normal X-Debbugs-Cc: pascal.mart...@gmx.fr
Dear Maintainer, I am using Openbox (in Debian Bullseye testing) where, as you know, some kind of window compositor is obligatory. So, as advised, I first turned to Compton, now Picom, and it worked fine regarding the handling of most of the software windows. But when trying to watch videos, with MPV in my case, there is really awful video tearing, about 20-25% of the image, a little above the middle of it. I first thought it was a problem with Compton/Picom, but the description says they are all based on Xcompmgr. So I tried to run xcompmgr (in OB autostart) without and with options (xcompmgr -c -t-5 -l-5 -r4.2 -o.55 &). I came to exactly the same result. Always the same tearing. As a result, I removed Compton/Picom, commented #xcompmgr, wrongly turned to Mutter, and finally gave up all these. And still there is a minimal window handling which I discovered was due to feh, the background choose, whose dependencies bring a minimal window handling that looks much like the one we have in Jwm (Joe's Window Manager). So I stick up to Feh for a minimal "pseudo- compositor" and the videos are perfect, the video image is even more precise. Only the software windows look worse when you handle/move them. My install is quite regular, testing, no foreign debs, no previous (debian) debs nor experimental debs. I make daily updates (at least in testing). My CPU is amd64 E1, Radeon graphics, 2014 laptop 6Go RAM. A few debian non-free firmware are necessary to make it work (much developer doc) but no non- recommended debs like radeontool. What moved me to report this bug is that everything worked fine with Compton, and so Xcompmgr 1.1.7-1, in Openbox for Debian 10 stable. The debian 10 XFCE special compositor gave some bad tearing too, so I turned it off or used Compton in XFCE for watching videos and compositing windows. I used tearing test videos like https://youtu.be/gmHaa5pvpVc (4k vsync test 60fps) https://youtu.be/9hIRq5HTh5s (vsync tearing test) https://youtu.be/MfL_JkcEFbE (tearing screen test) Cordially, Pascal. -- System Information: Debian Release: 11.0 APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 5.10.0-8-amd64 (SMP w/2 CPU threads) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages xcompmgr depends on: ii libc6 2.31-13 ii libx11-6 2:1.7.1-1 ii libxcomposite1 1:0.4.5-1 ii libxdamage1 1:1.1.5-2 ii libxext6 2:1.3.3-1.1 ii libxfixes3 1:5.0.3-2 ii libxrender1 1:0.9.10-1 xcompmgr recommends no packages. xcompmgr suggests no packages.
