Control: forcemerge 961132 961124 Control: reassign 961132 lightdm 1.26.0-7 Control: retitle -1 lightdm: with the nvidia driver, lightdm suspends the system when locking or logging out
On 2020-05-20 15:58:11 +0200, Vincent Lefevre wrote: > Package: light-locker > Version: 1.8.0-3 > Severity: important > > With the nvidia driver, light-locker suspends the system when locking. > In the journalctl logs, I get a line like > > May 20 09:16:43 zira systemd-logind[785]: Suspending... > > and according to the systemd maintainer, this is light-locker's fault. > > This happens at lock time, thus immediately with --no-late-locking, > and at the time of screensaver deactivation with --late-locking. > > Note: Until yesterday, IIRC, using --no-late-locking (at least) did > not trigger a suspend, but the screen was unblanked after a few seconds > (it remained black, but the DPMS state was no longer off, which defeats > the purpose of the screensaver nowadays). So this may be related to > some conditions. > > Moreover, after the resume, this puts the system in a bad state, and > the X server (thus lightdm) no longer works (apparently, according to > the lightdm Xorg logs, no screens found). I can switch to a VT, but > the login prompt is shown only for a fraction of second, after which > I just get a blinking cursor over a black screen. > > In case this matters, my xrandr configuration is > > xrandr --output DP-3 --off \ > --output DP-4 --auto --primary \ > --output DP-5 --auto --right-of DP-4 > > where DP-3 corresponds to the laptop screen. But this is no longer > honored after the resume. I eventually got rid of light-locker, so that there is no longer any issue with the screensaver. But logging out also suspends the system! Both locking and logging out trigger the lightdm login prompt, so that I suppose that this is the same issue, and it was not light-locker that was suspending the system, but lightdm. -- 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)
