xfwm: Setting `--vblank=off` as a user
fourdan at gmail.com
Thu Oct 4 17:37:04 CEST 2018
On Thu, 4 Oct 2018 at 15:18, Paul Menzel <pmenzel+xfce at molgen.mpg.de> wrote:
> $ xfwm4 --version
> This is xfwm4 version 4.13.1 (revision 942156e4) for Xfce 4.12
So you're build predates and does not feature the fix for GL vblank
(commit 0e6b940/bug #14564)
> Released under the terms of the GNU General Public License.
> Compiled against GTK+-3.22.30, using GTK+-3.22.30.
> Build configuration and supported features:
> - Startup notification support: Yes
> - XSync support: Yes
> - Render support: Yes
> - Xrandr support: Yes
> - Xpresent support: No
And your build is incomplete, Xpresent should be the default but it's
not enabled in your build.
> - Embedded compositor: Yes
> - Epoxy support: Yes
> - KDE systray proxy (deprecated): No
> one of our users has an issue with the amdgpu graphics driver.
So you're defaulting to GL for vblank which is broken in the version you use.
> `xfwm4 --replace --vblank=off` works around that problem, so we would
> like to disable it, on only that system, and it’d be nice, if the
> users could do it themselves.
> Reading , it should be possible, but there is no option
> *Synchronize drawing to the vertical blank* in the tab *Compositor*
> in xfwm4-tweaks-settings.
> I am now going to configure it in `/etc/Xmor erecent11/xorg.conf.d/`, but it’d
> be great if the user could do it.
No, this is not meant to be a user option - Having an option to
"unbreak things" is usually suboptimal, I would advise to 1. enable
Xpresent in your build and 2. use a more current source tree for your
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