On 30/07/11 14:40, Timo Neuvonen wrote: > I installed CentOS 6 to Acer 7750 laptop, which has Intel Sandybridge CPU > ( i5-2410M) with integrated Intel HD Graphics 3000. > > By default X won't use intel driver for graphics, but vesa instead, which > limits the resolution to 1024x768. I tried to force the use of intel driver > by writing a xorg.cof file, but then X doesn't start at all. > > I updated libdrm and xorg-x11-drv-intel from elrepo. This intel driver 2.15 > is newer than in Fedora 15 Live CD, and with it the graphics work properly. > > The problem seems to be related with i915 kernel module: > > (==) Using config file: "/etc/X11/xorg.conf" > FATAL: Error inserting i915 > (/lib/modules/2.6.32-71.29.1.el6.x86_64/kernel/drivers/gpu/drm/i915/i915.ko): > No such device > (EE) No devices detected. > That looks to me like the kernel driver also needs updating to support your hardware. The problem is that isn't trivial due to the dependencies that module has: $ modinfo i915 | grep depends depends: drm,drm_kms_helper,i2c-core,video,i2c-algo-bit So you'd also need to update those modules and their dependencies, and modules that depend on those modules might then break. As I said, not trivial. IMHO really you need to be running a newer kernel and/or distro with native support.