[Bug 10620] New: Disable on-chip RMX modes for DFP monitors

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=10620

           Summary: Disable on-chip RMX modes for DFP monitors
           Product: xorg
           Version: 7.1
          Platform: All
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: liswu at ati.com
         QAContact: xorg-team at lists.x.org
                CC: woliu at ati.com, yma at ati.com, rmacdona at ati.com,
                    liswu at ati.com


on-chip RMX mode is only enabled when the driver thinks it’s driving a
digital panel which will cause poor quality on CRT. This is also an old day’s
radeon driver preference that probably shouldn’t be used any more because
almost all modern TMDS panels have internal scaler which usually can result in
better quality than our internal RMX.
in some KVM systems, radeon driver use RMX modes for remote video by default,
however, the stretched RMX modes can't be well support. 
to update our driver, we change digital pannel mode validation routine not to 
use RMX mode by default, but validate modes by matching modes from EDID info 
instead.


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