[Bug 66799] New: 1920x1080 height too large for virtual size (dual radeon)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=66799

          Priority: medium
            Bug ID: 66799
          Assignee: xorg-driver-ati at lists.x.org
           Summary: 1920x1080 height too large for virtual size (dual
                    radeon)
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: duanev at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: Driver/Radeon
           Product: xorg

Created attachment 82302
  --> https://bugs.freedesktop.org/attachment.cgi?id=82302&action=edit
Xorg.0.log

Xorg exhibits several problems possibly because of Dual 4550 Radeon cards.
1) 66796 - radeon dual card configure segmentation fault
2) (this bug) - 1920x1080 height too large for virtual size (dual radeon)
3) (after #2 is fixed)  xrandr -q lists only one screen for 2 cards, 2 monitors


Much time spent looking for cause why second monitor of a dual radeon (2 cards,
1 monitor each) remained blank when Xorg reported both cards and monitors
detected.  Monitor on card1 is 1680x1050, monitor on card two is 1920x1080. 
With no xorg.conf (default config) the 1680x1050 monitor would light up and the
1920x1080 would stay blank.  Note the *informatory* message "[585135.723] (II)
RADEON(G0): Not using mode "1920x1080" (height too large for virtual size)" in
the Xorg.0.log file (in my opinion, if a significant bit of hardware is
disabled due to a resource problem, it should be a warning).


A workaround for this problem appears to be to create an xorg.conf file that
defines the virtual display size as large or larger than the physical screen
size.

Section "Screen"
        Identifier "Screen0"
        Device     "Card0"
        Monitor    "Monitor0"
        SubSection "Display"
                Virtual 1920 1088
        EndSubSection
EndSection

Section "Screen"
        Identifier "Screen1"
        Device     "Card1"
        Monitor    "Monitor1"
        SubSection "Display"
                Virtual 1920 1088
        EndSubSection
EndSection

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.x.org/archives/xorg-driver-ati/attachments/20130710/88b9c559/attachment.html>