OS: Win7 ve ayrıca Vista, Marka: Casper, Model: CPR 1600- 8D95B Nvidia GeForce 8400M GS.

Yardımcı olur mu bilmem ama şu şekilde çözen var.
forums.techguy.org
1. Start it in safe mode
2. Right click on the desktop, choose "Properties"
3. On the "Settings" tab click "Advanced"
4. On the "Troubleshoot" tab set the "Hardware acceleration" slider to "None" and press "Ok" - the screen turned back to normal for me at this point. ( There is also a checkbox which could be toggled.)
5. However when rebooting the BIOS part was normal, but when windows started up it turned to 6 again
So, I reckoned it is something set by the windows driver, so I repeated steps 1-4, but then booted into Ubuntu linux ( from a USB drive, but you can use the downloadable boot-cd too I assume ) - there the screen came up normally, and even hw acceleration worked. (Checked with glxgears and glxinfo if it rings a bell to someone.). This must have switched something on the GPU, as after restarting to windows the screen was ok there as well.
I hope this helps.


ekran kartınız arızalanmış. benim ve başka bir arkadaşımın başına gelmişti. duruma göre ekran kartının çipi veya komple anakart değiştiriliyor. garantisi varsa yetkili servise gönderin. genelde bu arıza ısınmadan oluyor. tamir edildikten sonra, laptop soğutucu kullanın.
