[Bug 12278] New: Bad values in modeline / flickering internal notebook panel

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=12278

           Summary: Bad values in modeline / flickering internal notebook
                    panel
           Product: xorg
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: gemkow at ikr.uni-stuttgart.de
         QAContact: xorg-team at lists.x.org


We have a Notebook Thinkpad R52 with internal panel 1400x1050.

The internal panel shows a flickering screen (looks like a moire-effect)
and so we checked the server log and the xrandr-output (both attached).

We found an interesting line in the Xorg.log (and in the xrandr-
output):

(II) RADEON(0): Printing probed modes for output LVDS
(II) RADEON(0): Modeline "1400x1050"x60.2  108.00  1400 34200 34312 1688  \
                                 1050 1051 1054 1063 (64.0 kHz)

I have no idea whether this is related to the flicker problem, but
in any case - something is wrong, probably an underflow and hope-
fully the driver does not try to use these values for the panel :-)

We did not have the flickering problem with the "old" radeon-driver
without xrandr 1.2 support.

I have learned that much of the mode handling is done in the
server so this may also be a server problem.

This is a Fedora 7 1.3 server, I scanned through the fedora specific
patches but found not much related to mode resp. modeline handling.


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