Hi, I'm hoping for some suggestions in narrowing down the search space of the problem I'm encountering running Debian Potato with my IBM Thinkpad 560. I recently exchanged the laptop's motherboard (including DC/DC) as the old mb had faulty cpu/cache memory (unit nominally ran potato fine except always got Sig11 on kernel compiles; new board passes kernel compiles with flying colors). It was an interesting process, I'll explain more if anyone's curious.
At first, the unit worked perfectly after this swap. However, after a day or so, the LCD screen image on initial boot into XDM started getting very garbled on the upper right portion (consoles still work fine); LCD is active matrix, BTW. Interestingly enough, if I press Function F7, which is the IBM Thinkpad hardware hotkey to switch between internal video (LCD) and external VGA adapter (for monitor), and then switch back to internal LCD, the screen image is restored, and will continue to work properly (which belies the initial belief that it's a hardware issue, as does perfect operation from the getgo in consoles/boot message). I'm guessing there's a possibility that the onboard Trident video chipset of the new mb might need a slightly different XF86Config setup. However, both motherboards belong to exact same IBM part number: 2640-F0E, and both use nominally the same Trident Cyber9385 chipset (so this makes XF86Config issue harder to believe/understand). Does anyone have suggestions on which road to look down first? I can post laptop's XF86Config if people want to see it, but I've held off on that for now to conserve the list's bandwidth. I've already searched google and list archives on topic without success. Thanks so much for any suggestions. Take care, Daniel -- Daniel A. Freedman Laboratory for Atomic and Solid State Physics Department of Physics Cornell University
