If the window with the text in the background, partially hidden by another window, and if the inactive window scroll up or down, you can see the distortion of the text. Screenshot in attached. Video Geforce 7600 GT. Driver nouveau.
Created attachment 408253 [details]
I wonder if this may be related to 543201?
(In reply to comment #2)
> I wonder if this may be related to 543201?
Not sure. I have seen not only with firefox
Ok, are you able to create an xorg.conf file like:
And then reboot with "nomodeset" added to your kernel options and see if you can reproduce this issue with the vesa driver. To switch back to nouveau, simply remove "nomodeset" and delete your xorg.conf.
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This is still a problem in Fedora 17 with Intel 945GM and Thunderbird.
Created attachment 601729 [details]
Blurry Thunderbird font
This is how ThunderBird looks like after some time spent in inactive state.
Created attachment 601730 [details]
Correct Thunderbird font
This is how ThunderBird looks like after I select it's window with mouse or Alt+Tab.