On 08/19/10 5:56 PM, ganu MailList wrote: > My Thinkpad notebook has two the same display card. It is installed > with Windows XP system and CentOS 5.3. > > When I reboot from CentOS to xp, the display card driver of windows > xp is broken. I guess if the display card is switched in the > CentOS? How to let these two system use the same display card? if you power off, does it then work in XP ? if so, I bet there's some mode settings on the video card that the BIOS reboot doesn't completely clear and the windows driver isn't expecting.