[Bug 20224] New: [Mobility M7 LW 7500] Virtual screen size too small when using dual head on 6.11.0

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=20224

           Summary: [Mobility M7 LW 7500] Virtual screen size too small when
                    using dual head on 6.11.0
           Product: xorg
           Version: 7.3
          Platform: Other
               URL: https://bugs.edge.launchpad.net/ubuntu/+source/xserver-
                    xorg-video-ati/+bug/277948
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: high
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: bryce at canonical.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=23120)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=23120)
Xorg.0.log

Forwarding this report from a Ubuntu reporter:
https://bugs.edge.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/277948

[Problem]
Upon disabling mirroring and logging back in, the virtual screen size is that
of one screen, not both.

This was confirmed as still happening on 6.11.0, but was first reported on
Ubuntu Intrepid on 2008-10-03

[xrandr output]
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 3360 x 1050
LVDS connected 1680x1050+1680+0 (normal left inverted right x axis y axis)
331mm x 207mm
DVI-0 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 434mm
x 270mm

For things to behave properly, Screen 0 needs to be 3360x1050, which can be
manually set using xrandr --output S -s 3360x1050. Having this wrong breaks the
nautilus desktop, for example.

[Original Report]
Binary package hint: nautilus

Using Intrepid with the open source ati driver, two screens, and compiz enabled
results in nautilus only running on one screen.

I configured dual head using the Monitor Resolution Settings program. After
restarting X for a virtual screen size config write, I come back in to find
that one desktop is not getting redrawn. So dragging a window across the broken
desktop results in the window contents getting drawn across the desktop, for
example. Otherwise the screen itself works fine: Panels can be moved on and
they function fine. I can use all the programs I want on the screen, and move
other ones on to it.

Using "xprop | grep WM_CLASS" on the working desktop returns
  WM_CLASS(STRING) = "desktop_window", "Nautilus"
while using it on the broken desktop returns nothing.

It seems that nautilus is simply not running on the one screen.

I've confirmed I have 6.11.0 in my Xorg.log, and while the update unfortunately
did not fix the issue, I did find something in testing: attempting to turn off
the LCD in Display Settings takes an inordinate amount of time to fail, but
afterwards the screen size is set correctly.

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 8.10
Uname: Linux 2.6.27-4-generic i686


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.