GNOME Bugzilla – Bug 706026
Lockscreen wallpaper scale is wrong on dual-monitor setup
Last modified: 2013-08-18 12:28:27 UTC
I have two monitors with different resolutions (secondary: 1680x1050, primary: 1920x1080), and a 1550x1200 wallpaper. Desktop wallpaper seems to be correctly scaled on each monitor (images have different heights, as expected), but when lockscreen is activated, secondary monitor shows wallpaper just fine, but on primary it seems the image is scaled down to fit monitor height (1395x1080?), and as a result there is a large empty area on the right (see attached screenshot, I marked empty area in red -- sorry for poor image quality). This started happening after I upgraded gnome-shell to 3.8.4.
Created attachment 251656 [details] truncated lockscreen wallpaper on primary monitor
Update: apparently, resetting wallpaper image (even to the same image) seems to fix this, but the bug is intermittent. Logging out and back in sometimes triggers it, and sometimes fixes it. Also, it seems to be somehow related to bug #706023 -- when overview is blank on secondary monitor, lockscreen scale is messed up. BTW: I'm using Nvidia proprietary driver version 319.32 from RPMFusion, but I was using it before gnome-shell 3.8.4 and had no problems at all.
This is fixed that in the 3.8 branch and master, for Fedora the fix is in gnome-shell-3.8.4-2.fc19 *** This bug has been marked as a duplicate of bug 704646 ***