Created attachment 611500 [details] lspci -vvvvn output following some recent update in the past weeks, my Intel GM45 based Lenovo W500 laptop shows display corruption after a workday or so, see attached screenshot. The "white striped" areas in the attached foto (thunderbird) show the effect, as well as the partially unreadable text line. I see the same in any application (google-chrome, terminal, ...), sometimes text or images just "disappear" only to reoccur after pressing some arbitrary key or moving around with the mouse. Neither switching to a text console nor logging out and in solves the problem, only rebooting the laptop gets it back to normal. The logfiles (Xorg.log, dmesg) don't show anything suspicious, see attachments. The "only" pecularity maybe is that I happen to have an xorg.conf file because my external monitor is not correctly detected (and has not for a long time, I think even pre FC13 or so).
Created attachment 611501 [details] xorg.conf
Created attachment 611502 [details] Xorg.0.log
Created attachment 611503 [details] foto of display corruption
Created attachment 611508 [details] another foto showing the failure with google-chrome
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