Intel 855/915/945G Integrated Graphics and 1920x1200 resolution in xorg

By thomas, 19 September, 2006
The Intel driver uses the bios to determine resolutions, you need to use an app to change the bios resolution if you want 1920x1200. The default is 1920x1400, which won't display properly. You'll also need a 1920x1200 modeline, I've included it at the bottom of the post. Install the RPM and run 855resolution. [root@host ~]# 855resolution -l 855resolution version 0.4, by Alain Poirier Chipset: Unknown (id=0x27708086) VBIOS type: 2 VBIOS Version: 1215 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 : 1920x1400, 8 bits/pixel Mode 41 : 640x480, 16 bits/pixel Mode 43 : 800x600, 16 bits/pixel Mode 45 : 1024x768, 16 bits/pixelMODE=5c X=1920 Y=1200 Mode 49 : 1280x1024, 16 bits/pixel Mode 4b : 1600x1200, 16 bits/pixel Mode 4d : 1920x1400, 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 : 1920x1400, 32 bits/pixel Change the resolution: [root@host ~]# 855resolution 5c 1920 1200 855resolution version 0.4, by Alain Poirier Chipset: Unknown (id=0x27708086) VBIOS type: 2 VBIOS Version: 1215 ** Patch mode 5c to resolution 1920x1200 complete

I've also included an init.d script to change the setting at boot, just edit /etc/sysconfig/855resolution: MODE=5c X=1920 Y=1200


RPMS: i386 SRPM


My xorg.conf Display section Section "Monitor" Identifier "Monitor0" VendorName "Monitor Vendor" ModelName "LCD Panel 1920x1200" HorizSync 30 - 70 VertRefresh 60 ModeLine "1920x1200" 162.0 1920 1984 2176 2480 1200 1201 1204 1250 +hsync +vsync Option "dpms" EndSection