[Bug 18932] New: Not possible to use '--right-of' or '--left-of' for external VGA

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=18932

           Summary: Not possible to use '--right-of' or '--left-of' for
                    external VGA
           Product: xorg
           Version: 7.4
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: mail at eliasprobst.eu
         QAContact: xorg-team at lists.x.org


Created an attachment (id=20872)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=20872)
Output "xrandr -q --verbose"

At first, used components:

Distribution: Gentoo
- xorg-xserver-1.5.2
- xrandr-1.2.3
- xf86-video-ati from git (Dec, 5th 2008)

Hardware:
- ATI/AMD x1600 [M56]/r500
- Internal LVDS of HP nx9420 Notebook @ 1680x1050
- External LCD "Sony SDM-S73" @ 1280x1024

It is not possible connecting the 2nd display to the external VGA connector as
'RightOf' or 'LeftOf' display.
The result when running
  xrandr --output VGA-0 --right-of LVDS --mode 1280x1024
is
  xrandr: screen cannot be larger than 1680x1600 (desired size 2960x1050)

The output of 'xrandr -q' (--verbose can be found in attachment):
###########
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 1680 x 1600
VGA-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 359mm
x 287mm
   1280x1024      60.0*+   60.0     60.0*
   1280x960       60.0     60.0
   1024x768       75.1     75.0     70.1     60.0
   832x624        74.6
   800x600        72.2     75.0     60.3
   640x480        75.0     72.8     72.8     75.0     60.0     59.9
   720x400        70.1
LVDS connected 1680x1050+0+0 (normal left inverted right x axis y axis) 365mm x
228mm
   1680x1050      58.8*+
DVI-0 disconnected (normal left inverted right x axis y axis)
###########

I can only get cropped clone mode working which isn't really of use to me when
I'd like to use the 2nd display to extend my workspace.


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