What could be the reason that my Acer Aspire 5741G laptop always gets corrupted graphics a few minutes after boot?
(Intel Chipset, Ati Graphics)
It happens kernel independent. It happens in Windows 7 as much as in any Linux I boot. Last time, before it happened I was able to read some "dmesg" logentries, which said that the cpu got clocked down because of overheating. (lulzily the temperature value had its own unit, where everything over 9000 was too hot XD )
It looks like this:
I suspect one of those things:
The previous owner messed up the default clock settings of the graphics board through one of these desktop overclocking tools and it gets unstable. How to reset that when I can not even see what I am doing shortly after login, lest install windows that way.
Actual overheating? No I cleaned the thing inside out to check for that.
The connection to the display could be disturbed. Are there "just those cables" for sale somewhere? I dont want to buy a new screen.
The graphics chip could be damaged. I cant remove it like one of those mobile pcie cards. But the gpu seems like on some kind of socket, I dont know if it is locked or exchangable. How can I check those things?