[Bug 2859] Flickering or blanking on DVI output of Radeon 9200/9250

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=2859





--- Comment #97 from Mike <spambox at poczta.onet.pl>  2008-07-07 02:33:23 PST ---
Three year old bug. I'm not alone :)

My setup is:
Fedora 8, xorg-x11-drv-ati-6.8.0-4.fc8

[01:00.0 0300: 1002:5961 (rev 01)] 01:00.0 VGA compatible controller: ATI
Technologies Inc RV280 [Radeon 9200] (rev 01)
[01:00.1 0380: 1002:5941 (rev 01)] 01:00.1 Display controller: ATI Technologies
Inc RV280 [Radeon 9200] (Secondary) (rev 01)

monitor:
Manufacturer: IBM  Model: 686e (IBM L170p)

How to reproduce:
1. in kde console (konsole) make 2 tabs
2. fill one tab with lots of text
3. second tab is empty
4. do a fast switching between these tabs

now screen starts to jump horizontally :(
sometimes lcd goes blank for 1-2 second

without user input screen in rock steady

Looks like on screen update somehow refresh rates changes (?).
Most people see this as lcd switch-off.

My xorg.conf is default (almost empty):
<=====================
# Xorg configuration created by system-config-display

Section "ServerLayout"
        Identifier     "single head configuration"
        Screen      0  "Screen0" 0 0
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "InputDevice"
        Identifier  "Keyboard0"
        Driver      "kbd"
        Option      "XkbModel" "pc105"
        Option      "XkbLayout" "pl"
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "radeon"
#       Option "DisplayPriority" "HIGH"
#       Option "DefaultTMDSPLL" "true"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
        EndSubSection
EndSection
=====================>

There are no modeline lines.

These options won't help at all:
       Option "DisplayPriority" "HIGH"
       Option "DefaultTMDSPLL" "true"


What could I do to help fixing this issue?


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