Intel Graphics Media Accelerator 900
Linux X.Org driver
This chip is supported by the 'i810' driver as part of the X.Org distribution
For DRI-Support, you may have to install the latest Drivers from DRI Snapshot you need following files:
Extract both in the same Directory and run install.sh
After that restart your X-Server and enjoy OpenGL-Support ;-)
At least on a T43, you also want to add acpi_sleep=s3_bios to the kernel command line (edit your LILO or GRUB configuration file to do that), in order to make sure that Xorg continues to work after a suspend/resume cycle.
Linux Intel driver
You can find Linux drivers for this card on Intel's site. The site offers much information about how to install this card on many distributions, mainly Red Hat and SuSe. The "Intel" driver above is just a snapshot of the Xorg/XFree86 driver.
Display on the internal LCD works as long as you set the monitor settings correct.
External VGA port
Works well in clone mode at least. Dualhead is supported.
Section "Device" Identifier "Intel Corporation Intel Default Card" Driver "i810" BusID "PCI:0:2:0" Option "MonitorLayout" "CRT,LFP" Option "Clone" "true" EndSection
Now you can enable|disable vga out with i810switch crt on|off
See above, but use
Option "MonitorLayout" "TV,LFP"
Now you can turn on/off the TV-Out by executing the commands
echo "dvi_enable" > /proc/acpi/ibm/video or echo "dvi_disable" > /proc/acpi/ibm/video
Or toggle between them with
echo "video_switch" > /proc/acpi/ibm/video
This is known to work on a T43. Hint: Of course you can also use all 3, that makes "TV,LFP,CRT" (in that order).
DVI can be supported if a TMDS transmitter is hooked up to one of the pipes.
Linux kernel Framebuffer driver
This chip will work with either the 'vesa' or 'intelfb' driver as part of any recent 2.4 or 2.6 kernel.