Hi, Ludovic Courtès <l...@gnu.org> writes:
> Ludovic Courtès <l...@gnu.org> skribis: > >> Commit 945ad48cd8029fa77a643e00c7fd350e98cacca0 added an mcron job to >> ‘vm-image.tmpl’ that resets screen size every second. I’m don’t fully >> understand the problem this was addressing, but it has two drawbacks: >> >> 1. Kicking in every second is inefficient. >> >> 2. Resetting the screen size prevents users from changing it. For >> example, if I run: >> >> $(guix system vm gnu/system/examples/vm-image.tmpl) -m 1024 >> >> then go to the Xfce menu, Settings -> Display, and change the screen >> size, I have it immediately reset back to the default value. > > There’s a third problem that I initially thought was unrelated: > > 3. The mcron job starts running before ‘xorg-server’ is up, and that > can cause Xorg to fail to start. > > Namely, if you run the command above, you’ll see that Xorg starts and > fails typically a few times in a row, until it eventually succeeds. In > /var/log/messages, you can see that the ‘xorg-server’ process exits with > code 1 (without any indication of what went wrong AFAICS) and the > service gets respawned. > > Now if you remove the mcron job and boot the VM, the ‘xorg-server’ > service successfully starts. It’s 100% reproducible for me. I tried to reproduce the problem without any luck on my machine (it always boots fine). Odd. I don't mind the hack removed, but I think we should aim to keep SPICE dynamic resizing working, and currently that'd mean switching desktop environment, unless we fix https://gitlab.xfce.org/xfce/xfce4-settings/-/issues/142 (GNOME had adjusted for the years old change in SPICE with https://gitlab.gnome.org/GNOME/mutter/-/commit/957513242c26be458be7a101b83180e3f59f6a44), in case your looking for something fun to hack on :-). Thanks, Maxim
