GNOME Bugzilla – Bug 670681
Low resolution wallpaper on the external monitor while using dual-head
Last modified: 2013-07-08 08:11:04 UTC
I'm using dual-head: 1. laptop's monitor with 1280x800 resolution set up as a secondary display 2. external monitor with 1920x1080 resolution set up as a primary display When I set up a wallpaper everything is OK and the wallpaper resolution is correct on both displays (the wallpaper's original resolution is 1920x1200). After I log out and log back in, the wallpaper's resolution on the external monitor is lower than necessary and it's blurry. I've tried different wallpapers (with resolutions always higher than the larger monitor's one), and different wallpaper layout (tiled, stretched,...) always with the same result. Looks like GNOME saves a thumbnail of the wallpaper in the resolution of laptop's monitor and when logged in again it uses it also for the external monitor. It seems to occur only on dual-head with different resolution ratios. It doesn't occur on my colleague's dual-head setup where there are monitors with different resolutions, but the same ratio. Wanted result: GNOME should use the best available resolution on all displays so that wallpapers on all displays are sharp.
I get this too on my setup. Latest master of everything from jhbuild.
*** Bug 674636 has been marked as a duplicate of this bug. ***
Created attachment 238787 [details] wallpaper right after setup This is how my wallpapers look like right after I set it up (i.e. set or change the wallpaper). (JPEG because of bugzilla file size limits)
Created attachment 238788 [details] wallpaper after reboot This is how my wallpapers look like after I reboot. (JPEG because of bugzilla file size limits) It is not much noticeable in this case, but for some wallpapers the zoomed one (the right one) gets really blurry and ugly. I have an internal 1366x768 laptop screen on the left and an external 1680x1050 screen on the right.
Do you still see this in GNOME 3.8? Reassigning to gnome-shell as it's responsible for displaying the background wallpaper now.
This is fixed in GNOME 3.8 (Fedora 19). Thank you, mysterious someone! Jiri, can you close this please?
It's probably been fixed by the shell now handling the wallpaper, rather than gnome-settings-daemon. It's basically a complete rewrite. I'll close this now.