That tread was very helpful. But you mixed things up. I also experience the same problem with flickering background in greeter.
But, my story starts differently. When I first time installed Xubuntu 16.04 and set up desktop background, greeter was showing it without any problem. Then, I created xorg.conf.d, and specify "Monitor" "Device" "Screen", and after this my greeter background starts to blink. But it is not just blink. SNA somehow remembers desktop background and draws it again, but LightDM greeter redraws it and this process looks like flicker. If you specify in greeter: user-background=false, with SNA you will see background and then greeter will clear it. So the solution is to add option: user-background="do nothing" Also I found out that with SNA I can't wakeup my monitor, because xrandr loses "current" mode To wake it up I need to connect via ssh and manually set monitor mode: xrandr -d :0 --output HDMI2 --mode 0x47 After this mouse movements wake up my monitor. SNA is crappy. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1531224 Title: lightdm-gtk-greeter flickers once little after lightdm starts Status in LightDM GTK+ Greeter: New Status in xserver-xorg-video-intel package in Ubuntu: Confirmed Bug description: Bug context: · Arch Linux x86_64 4.3.3-2-ARCH · systemd 228-3 (using lightdm-plymouth.service) · plymouth 0.9.2-8 (compiled from AUR) · lightdm 1:1.16.6-2 · lightdm-gtk-greeter 1:2.0.1-2 At the end of boot process, right after plymouth splash, lightdm starts normally and the GTK+ greeter login screen is shown for about 1 second, but then the screen instantly flickers (goes black) and the greeter is redrawn. From here on, everything works flawlessly, but the brief flickering is certainly annoying. This happens every time and no other greeter I have tried presents this issue, so I can confirm it is lightdm-gtk-greeter-related. To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1531224/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
