Created attachment 7850 Screen shot Using Xfwm 4.13.1 only the top left fourth of a screen is shown when window scaling is set to *2x* under *Appearances*. This is a regression from 4.13.0. The mouse cannot be moved out of the area.
I found this problem when using GDK_SCALE=2 in /etc/environment. Even with xfwm 4.12 that option did not work as expected to me (not xfwm's fault), xrandr --scale is better to me.
Yes this is a regression in xfwm4 4.13. xfwm4 4.13 implements xfwm_get_monitor_geometry() in a small helper library which in turn calls gdk_monitor_get_geometry() which gives the monitor geometry in _application pixels_, not _device pixels_, i.e. the scaled is applied.
Olivier Fourdan referenced this bugreport in commit be929b2ad13a9a8ccd94ca3041b1af9d287b4a8f common: Convert monitor geometry to device geometry https://git.xfce.org/xfce/xfwm4/commit?id=be929b2ad13a9a8ccd94ca3041b1af9d287b4a8f
Awesome, the problem is fixed in the current master branch. Thank you.
Humm, that code in xfwm-common.c is full of bugs...
Maybe use a new bug report to track this?
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