Usage -----
You must be root to launch it.
Usage: 915resolution [-l] [mode X Y] [bits/pixel] Options: -l display the modes found into the vbios
Note that bits per pixel is optional. If you do specify anything, then the original value will be preserved.
Installing ----------
$ make $ su # make install
Setting -------
1. Switch to root # su
2. Display the available resolutions :
# 915resolution -l Intel 800/900 Series VBIOS Hack : version 0.5.2
Chipset: 915GM BIOS: TYPE 1 Mode Table Offset: $C0000 + $269 Mode Table Entries: 36 Mode Table Offset: $C0000 + $269 Mode Table Entries: 36
Mode 30 : 640x480, 8 bits/pixel Mode 32 : 800x600, 8 bits/pixel Mode 34 : 1024x768, 8 bits/pixel Mode 38 : 1280x1024, 8 bits/pixel Mode 3a : 1600x1200, 8 bits/pixel Mode 3c : 1920x1440, 8 bits/pixel Mode 41 : 640x480, 16 bits/pixel Mode 43 : 800x600, 16 bits/pixel Mode 45 : 1024x768, 16 bits/pixel Mode 49 : 1280x1024, 16 bits/pixel Mode 4b : 1600x1200, 16 bits/pixel Mode 4d : 1920x1440, 16 bits/pixel Mode 50 : 640x480, 32 bits/pixel Mode 52 : 800x600, 32 bits/pixel Mode 54 : 1024x768, 32 bits/pixel Mode 58 : 1280x1024, 32 bits/pixel Mode 5a : 1600x1200, 32 bits/pixel Mode 5c : 1920x1440, 32 bits/pixel Mode 60 : 1280x770, 8 bits/pixel Mode 61 : 1280x770, 16 bits/pixel Mode 62 : 1280x770, 32 bits/pixel Mode 63 : 512x771, 8 bits/pixel Mode 64 : 512x771, 16 bits/pixel
3. I personnaly decided to overwrite the 1280x1024 resolution because I don't use it :
# 915resolution 38 1280 800
4. Now the bios reports a 1280x800 resolution :
# 915resolution -l Intel 800/900 Series VBIOS Hack : version 0.5.2
Chipset: 915GM BIOS: TYPE 1 Mode Table Offset: $C0000 + $269 Mode Table Entries: 36 Mode Table Offset: $C0000 + $269 Mode Table Entries: 36
Mode 30 : 640x480, 8 bits/pixel Mode 32 : 800x600, 8 bits/pixel Mode 34 : 1024x768, 8 bits/pixel Mode 38 : 1280x800, 8 bits/pixel Mode 3a : 1600x1200, 8 bits/pixel Mode 3c : 1920x1440, 8 bits/pixel Mode 41 : 640x480, 16 bits/pixel Mode 43 : 800x600, 16 bits/pixel Mode 45 : 1024x768, 16 bits/pixel Mode 49 : 1280x800, 16 bits/pixel Mode 4b : 1600x1200, 16 bits/pixel Mode 4d : 1920x1440, 16 bits/pixel Mode 50 : 640x480, 32 bits/pixel Mode 52 : 800x600, 32 bits/pixel Mode 54 : 1024x768, 32 bits/pixel Mode 58 : 1280x800, 32 bits/pixel Mode 5a : 1600x1200, 32 bits/pixel Mode 5c : 1920x1440, 32 bits/pixel Mode 5c : 1920x1440, 32 bits/pixel Mode 60 : 1280x770, 8 bits/pixel Mode 61 : 1280x770, 16 bits/pixel Mode 62 : 1280x770, 32 bits/pixel Mode 63 : 512x771, 8 bits/pixel Mode 64 : 512x771, 16 bits/pixel Mode 65 : 512x771, 32 bits/pixel
5. On some machines 24 bits per pixel is the desired resolution. An alternate invocation to achieve this would be:
# 915resolution 38 1280 800 24
6. My xorg.conf has the following screen definition :
Section "Screen" Identifier "Screen 1" Device "device" Monitor "LCD" DefaultDepth 16
Subsection "Display" Depth 16 Modes "1280x800" EndSubsection EndSection
7. 915resolution must run before the X server is started. So I don't need to do this every time I put it in my startup scripts. Where these scripts are very from distribution to distribution. I'm running SUSE 9.2, so I put the definition in /etc/init.d/boot.local:
#! /bin/sh # # Copyright (c) 2002 SuSE Linux AG Nuernberg, Germany. All rights reserved. # # Author: Werner Fink <werner@suse.de>, 1996 # Burchard Steinbild, 1996 # # /etc/init.d/boot.local # # script with local commands to be executed from init on system startup # # Here you should add things, that should happen directly after booting # before we're going to the first run level. #
/usr/bin/915resolution 38 1280 800
8. Start up the X server # startx
Disclaimer ----------
915resolution is free to use, distribute or modify. But please mention my name and the names of the respective contributors. I tried to make the programs as safe as possible but obviously I can't guarantee that they'll work for you. So don't blame me if something bad happens.
Steve Tomljenovic stomljen at yahoo dot com
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