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Linux Ubuntu Intel Graphics - Make Intel Ironlake Desktop work with 1080p



For the record this is quoted from a ubuntu/xbmc-guide:
http://forum.xbmc.org/archive/index.php/t-86581.html
http://forum.xbmc.org/showthread.php?t=114368


When you use Intel graphics the driver is already installed with ubuntu, but it seems not to support more than 720p at first, but this will fix it:


I tested this on Ubuntu 11.10


For auto refresh rate to work, we need custom modlines defined in xorg.conf. The reason for this is that the available refresh rates don't get properly enumerated, despite that raw EDID data gets read properly. See bug report: https://bugs.freedesktop.org/show_bug.cgi?id=32512
To create a proper xorg.conf, you have to check which output is used on your motherboard. To do this run:
xrandr -q 
When Xorg is running and check which port is plugged. Eg. HDMI1 or HDMI2 (in my case). The other task is to get modelines to your TV. Or just use mine. They suit for a normal 1080p full HD LCD or Plasma. Now create the xorg.conf:
sudo nano /etc/X11/xorg.conf


Copy:
Section "Device"
Identifier "Device0"
Driver "intel"
VendorName "INTEL Corporation"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "HDMI2"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1920x1080@50p" "1920x1080@59.94p" "1920x1080@24p" "1920x1080@60p"
EndSubSection
EndSection
Section "Monitor"
Identifier "HDMI2"
HorizSync 14.0 - 70.0
VertRefresh 24.0 - 62.0
Modeline "1920x1080@24p" 74.230 1920 2560 2604 2752 1080 1084 1089 1125 +hsync +vsync
Modeline "1920x1080@50p" 148.500 1920 2448 2492 2640 1080 1084 1089 1125 +hsync +vsync
Modeline "1920x1080@59.94p" 148.352 1920 1960 2016 2200 1080 1082 1088 1125 +hsync +vsync
Modeline "1920x1080@60p" 148.500 1920 2008 2056 2200 1080 1084 1089 1125 +hsync +vsync
EndSection


Of course you have to change HDMI2 to your output value.
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