On Tue, 21 Oct 2008 22:33:35 +0200, Halim Issa wrote: > Hello, > > I'm seeing some unexpectedly poor performance with version 2.5.0 of the Intel > driver on Xorg X Server 1.5.1 with libdrm 2.4.0 and mesa 7.2. The system in > question is a Lenovo X200 laptop with Intel Graphics Media Accelerator 4700 > MHD onboard graphics card. > > glxgears reports it "Failed to initialise TTM buffer manager. Falling back to > classic" and then gives a steady 301 frames per 5.0 seconds = 60.103 FPS. > > I know full well that glxgears is not a 100% accurate tool for benchmarking > performance, but the poor performance is also clear in all aspects of graphic > processing. > > I have not made any special/custom tweaks to my xorg.conf (attached) and have > also not made any special/custom ./configure --options to the intel driver > while compiling. > > In trying to research this I have googled some rather broad queries that have > not provided any useful data. I would thus greatly appreciate if someone > could kindly point me towards relevant information on the subject so that I > can identify and fix the problem. > > Attached is my xorg.conf and Xorg.0.log files. > > Thanks much in advance. Any insight and pointers to enable me to further > understand what's wrong (and hopefully how to fix) would be greatly > appreciated!
Vsync is on.. Ie it won't allow you to display more than your displays frame rate. (it's on by default on newer drivers). run it with: vblank_mode=0 glxgears and see what you get. _______________________________________________ xorg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xorg
