On 2022-01-20 13:59:21 +0100, Vincent Lefevre wrote: > This issue is actually also now reproducible with systemd 250.2, but > the systemd version seems to have an effect of the possible behaviors > (A, B and C below): > > With systemd 250.2: > A. 2 monitors detected, the greeter appears. > B. 2 monitors detected, the greeter does not appear. > > With systemd 250.3: > B. 2 monitors detected, the greeter does not appear. > C. 1 monitor detected (the laptop screen), the greeter appears on > this monitor. > > Case C is actually like a one-monitor setup (it could occur in the > past, perhaps still currently with systemd 250.2, but I haven't > done many tests with this version, mainly focusing on 250.3). > Note that when 2 monitors are detected, they are always mirrored. > > Case B has never appeared before (I was always in case A or C), > while my monitor setup hasn't changed. 2 things have changed on > my laptop in the last few days: > > 1. Some packages have been upgraded, but lightdm-gtk-greeter is > still from November 2020 (2.0.8-2). Concerning lightdm, this > is lightdm 1.26.0-8 from 11 January 2022, but only with minor > changes compared to lightdm 1.26.0-7 from Febrary 2020. > I might check later.
I've tried with lightdm 1.26.0-7 (from Debian/stable) and no workaround (i.e. no active-monitor=1 in lightdm-gtk-greeter.conf). First reboot: case B, i.e. the bug also occurred. Second reboot: case A (so that case can also occur with systemd 250.3). I doubt that the systemd matters at all, possible except by slightly changing the timing, which might make some case more/less likely than before. -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
