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Intel 855GM with 1400x1050 works

Hello together,

good news for all of you who work with a Laptop that uses the graphics chip mentioned above and were not able to switch to a resolution of 1400x1050, for example on an Acer Travelmate 661LMi. Alain Poirier developed a C program that is able to change the provided BIOS resolutions. The problem is that Acer did not patch the BIOS to provide the right resolution for their displays, instead they put some resolutions in it, that make no sense, like
	Mode 3c : 1920x1440, 8 bits/pixel
The program is able to replace a resolution with another one by patching the RAM version of the video bios.
You can find the software here: http://perso.wanadoo.fr/apoirier/
On the Acer TM 661LMi we had to change one line in the C file on line 34: "*bios_type = -1;" -> "*bios_type = 0;" Then you compile the file (make) and install it as root (make install). Now you can change the resolution by executing
	855resolution 3c 1400 1050
and restarting the X server. This will change the resolution only for this boot session, so make sure to mention the program in a startup script if you want to have this thing work after reboot.


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