Does anyone have any experience with the combination of a Thinkpad R40 and the ATI Radeon Mobility M6 LY video chip? I've had CentOS 4.1, 4.2, and now 4.3 running just great with 1024x768 resolution, but according the IBM specs, this chip is capable of 1280x1024.
A quick lspci -v | grep ATI spewed the following:
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility M6 LY (prog-if 00 [VGA])
I can successfully change the settings under the display menu to 1280x1024, but upon restarting X the default greeter crashes. After that, it picks another greeter and allows me to log in, with it still picking 1024x768. I've played around with trying to manually change the settings in /etc/X11/xorg.conf file. I've tried various depth settings to no avail.
The section identifying the card in xorg.conf is:
Section "Device" Identifier "Videocard0" Driver "radeon" VendorName "Videocard vendor" BoardName "ATI Radeon Mobility M6" EndSection
According to what I've been reading, that's what is supposed to be there. I've found a few things stating that DRI could be a problem, but I'm not too familiar with this.
Also, a friend has an R40 but has the ATI Mobility Radeon 7500 chip, instead of the M6 like mine. He's also running CentOS 4.3 and having the exact same problem I'm having. Same deal, according to the IBM specs his chipset as well as mine should be capable of 1280x1024. Any thoughts or related experience with this? If not, it's not a huge deal, I've been using it 1024x768 for well over a year now, but the extra resolution would be wonderful. Thanks!
Max