[Bug 16374] New: Screen blanks when using DVI at 1920x1200 with an X1300 ( PCI ID 1002:7187)

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=16374

           Summary: Screen blanks when using DVI at 1920x1200 with an X1300
                    (PCI ID 1002:7187)
           Product: xorg
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: bero at arklinux.org
         QAContact: xorg-team at lists.x.org


When using an X1300 (PCI ID 1002:7187) connected through DVI to an Acer X243w
display, at a resolution of 1920x1200, the screen occasionally blanks for no
apparent reason and comes back after around 5 seconds. Chances are the DVI
signal is dropping for a while, causing the display to enter (and immediately
exit) sleep mode.

It doesn't happen if I switch to a lower resolution (e.g. 1600x1200 or
1680x1050).
It happens regardless of whether or not HorizSync and VertRefresh are specified
manually in xorg.conf.


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