On Thu, May 24, 2012 at 6:36 PM, zxq9 <[email protected]> wrote: > On 05/24/2012 09:55 PM, Akemi Yagi wrote:
>> ... Or head for elrepo.org and install kmod-fglrx : >> >> http://elrepo.org/tiki/kmod-fglrx >> >> It survives kernel updates transparently, so there is no need to >> rebuild/install each time you update the kernel. Also, 'yum update' >> will update the version of the ATI driver when a new version of the >> driver becomes available. >> >> Basically, it a 'install once and forget forever' type operation. :-) >> >> In Scientific Linux 6, setting up ELRepo is as easy as: >> >> yum install elrepo-release >> >> Akemi > > > A note on this... in our experience there is a slight performance difference > between the generically built ELRepo driver package and ones built directly > against your kernel header on your hardware. > > In the case of an A-series processor this probably won't be noticable unless > you are an extremely demanding gamer, but on lighter systems like the > E-series APUs using them as 3D CAD stations or enabling the desktop eye > candy is just a touch annoying without letting the GPU pull out all its > tricks. Interesting note about the performance difference. For people who are wondering which kernel environment ELRepo's ATI driver is built against, here's the info as of kmod-fglrx 12.3.1 : EL6: 2.6.32-220.el6 (EL 6.2 GA kernel) EL5: 2.6.18-238.el5 (EL 5.6 GA kernel) I don't have the ATI hardware to test, but the 6.2 GA kernel *might* be close enough to the current kernel 2.6.32-220.13.1.el6. But the EL5 one may be worth building against the current 5.8 kernel to see if that improves the performance (for users running 5.8 of course). Akemi
