Actually, I guess it's not even non-rectangular configurations that cause this issue - after changing them to a wide rectangular configuration, DVI-1 still displays the region from 1280x1024+0+0 (which is now also displayed on the topmost screen), while xrandr still claims it's 1920x1080+2560+0. The cursor isn't huge anymore though. So this just seems to be some issue with handling multi-monitor configurations. Again the cursor moves across all screens correctly, but the windows don't.
Also another correction, the previous version I was using was 12.10, not 12.04. Both configurations worked fine there. (Except that Awesome WM would place windows off screen, but that's another bug...) I tried running xcompmgr to see if that would make any difference, but there's no change. ** Summary changed: - With nonrectangular multi-monitor arrangements, display region is wrong + [HD5770] Multi-monitor display region is wrong (worked in 12.10) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/1184063 Title: [HD5770] Multi-monitor display region is wrong (worked in 12.10) Status in “xserver-xorg-video-ati” package in Ubuntu: New Bug description: In Lubuntu 13.04, I have an unusual display configuration: three monitors arranged horizontally and a fourth centred above them. This worked fine in 12.04; after upgrading, the middle display is not working correctly. xrandr --output DVI-1 --mode 1920x1080 --rate 60 \ --output HDMI-0 --mode 1680x1050 --rate 60 --right-of DVI-1 \ --output DVI-0 --mode 1280x1024 --rate 60 --left-of DVI-1 \ --output DisplayPort-0 --mode 1280x1024 --rate 60 --above DVI-1 Despite what xrandr claims, and no matter what I tell it, the middle display (DVI-1) remains at 1280x1024 and displays windows from the region 1280x1024+0+0, i.e. the region above the leftmost display (DVI-0) that shouldn't be displayed. Windows in the region 1920x1080+1280+1024, i.e. the region DVI-1 actually occupies, are not shown anywhere. The other screens display correctly. (This can only be seen by dragging a window partway off of the topmost or leftmost screen into this region, since the mouse does move correctly and won't enter this region.) Additionally, if xrandr is used to turn DVI-1 off, it will not be able to turn it back on again. Like the region issue, it will claim the display is on when it is not. Additionally, the mouse cursor appears about twice as large as normal. It does, however, move across the screens correctly. Related: http://askubuntu.com/questions/299744/lubuntu-13-04-cannot- set-display-resolution-windows-invisible-huge-mouse-curso All of these things were working correctly on the same machine in 12.04. I hadn't tried 12.10. --- ApportVersion: 2.9.2-0ubuntu8 Architecture: amd64 DistroRelease: Ubuntu 13.04 InstallationDate: Installed on 2013-05-25 (0 days ago) InstallationMedia: Lubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1) MarkForUpload: True Package: xserver-xorg-video-ati 1:7.1.0-0ubuntu2 PackageArchitecture: amd64 ProcEnviron: LANGUAGE=en_CA:en TERM=xterm PATH=(custom, no user) LANG=en_CA.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 3.8.0-22.33-generic 3.8.11 Tags: raring Uname: Linux 3.8.0-22-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1184063/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
