On Sun, 30 May 2010, Adryan Pop wrote: > I've installed CentOS 5.5, fixed my problems with my network card driver, and and I've followed this: http://wiki.centos.org/AdditionalResources/HardwareList/AtiDriver , downladed latest ati driver, restarted, screen resolution is fixed, but everything lags. > > ATI Radeon HD 5470 1GB > > this is the output of "lspci -v" > > 01:00.0 VGA compatible controller: ATI Technologies Inc Manhattan [Mobility Radeon HD 5000 Series] (prog-if 00 [VGA controller]) > Subsystem: ASUSTeK Computer Inc. Unknown device 1bf2 > Flags: bus master, fast devsel, latency 0, IRQ 11 > Memory at c0000000 (64-bit, prefetchable) [size=256M] > Memory at d0020000 (64-bit, non-prefetchable) [size=128K] > I/O ports at d000 [size=256] > Expansion ROM at d0000000 [disabled] [size=128K] > Capabilities: <access denied> I have had similar issues with Dell machines. This seems to be related to the BIOS. In almost every case, if there is a new ATI driver there is a new Dell BIOS version. Check your motherboard manufacturer and see if there is an update that might correct it. -- James A. Peltier Systems Analyst (FASNet), VIVARIUM Technical Director HPC Coordinator Simon Fraser University - Burnaby Campus Phone : 778-782-6573 Fax : 778-782-3045 E-Mail : jpeltier at sfu.ca Website : http://www.fas.sfu.ca | http://vivarium.cs.sfu.ca http://blogs.sfu.ca/people/jpeltier MSN : subatomic_spam at hotmail.com TEAMWORK There's power in numbers. Learn to work together.