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Showing posts from February 18, 2010

Kernel Mode Setting with the Intel Driver

My HP 1120NR  uses the Mobile 945GME Express Integrated Graphics Controller and my Acer Aspire 5315 uses the‎ Mobile GM965/GL960 Integrated Graphics Controller, both of which use the  0915 video driver. This means that I can use kernel modesetting.

This is how:
In /boot/grub/menu.lst, delete any vga= entries.Add i915.modeset=1Reboot.Check to see if modesetting is enabled by looking for a value of modeset : 1 when you run the command get_module i915 I also added the file /etc/modprobe.d/i915.conf that contains the following:

options i915 gem_enable=1
options i915 modeset=1
options i915 fbpercrt=0
options i915 fastboot=1

The first line enables the GEM option. From here, "To [dis-]able GEM, just replace [1 with 0]. Users should try to disable GEM "when slow 3D performance is noticed and when the Xorg.log makes reference to problems enabling tiling due to it being rejected by the kernel"." Mandriva disables GEM automatically for i8xx hardware; it's disabled acro…