[mythtv-users] Screen corruption with fglrx X driver

kanetse@gmail.com kane.tse at gmail.com
Mon Aug 25 17:09:45 UTC 2008


> David Gee wrote:
>> I've done a little more investigating and tried tweaking some settings,
>> and here are the various problems I've identified; I would appreciate
>> any input anyone can give me.
>>
>> 1. Mythfrontend menus: if I run mythfrontend using the --geometry
>> parameter, the menus always display correctly. If I omit the --geometry
>> parameter so that mythfrontend runs full-screen, then the output on the
>> screen gets corrupted (although a screenshot shows the menu drawn
>> correctly). I have found that if I change the paint method from Qt to
>> OpenGL, the actual menus themselves then display correctly, although the
>> initial loading screen with the progress bar still appears corrupted.
>>
>> 2. Settings screens: If I have the OpenGL paint method enabled (to fix
>> the screen corruption as described above), none of the settings screens
>> work - the screen doesn't change and doesn't respond to key presses,
>> although pressing Escape enough times usually regains control of the
>> menus. However, this is only happens in full-screen mode: running
>> mythfrontend with a --geometry parameter gets around this problem. If I
>> am using the Qt paint method, this menu works all the time (however it's
>> useless in full-screen mode because of the aforementioned screen
>> corruption in full-screen mode without OpenGL).
>>
>> 3. Watching TV: generally works; however, mythfrontend frequently
>> segfaults while watching TV. Changing channels is also problematic: most
>> of the time, this causes the TV output for the newly changed channel to
>> be garbled. However, pressing escape to get back to the main menu and
>> then going back to watching TV results in that channel being displayed
>> perfectly. See http://www.allpowerfuldave.com/mythtv1.png,
>> http://www.allpowerfuldave.com/mythtv2.png and
>> http://www.allpowerfuldave.com/mythtv3.png for examples of the garbled
>> output after changing channels. The output appears to differ depending
>> on whether the broadcast is SD or HD.
>>

Just wanted to chime in on this very old thread, I'm seeing exactly
the same problems as described above.  Anyone know of any solutions
yet?  I'm ready to give up and plug in an older GeForce 6600 into the
PCI-E slot.

My setup:

GA-MA78GM-S2H (AMD 780G)
CentOS 5.2
fglrx
Connected via DVI

I'm hoping that eventually a new driver from ATi will be released that
fixes this problem... but for now, I'll switch over to the PCI-E card.

Thanks!


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