On Mon, 2009-05-04 at 18:23 +0200, Karsten Mehrhoff wrote: > On Mon, 04 May 2009 17:07:40 +0200, Michel Dänzer wrote: > > On Mon, 2009-05-04 at 08:31 +0200, Karsten Mehrhoff wrote: > >> On Mon, 04 May 2009 03:41:51 +0200, Shaohua Li wrote: > >>> On Fri, May 01, 2009 at 09:22:19PM +0800, kaw...@gmx.de wrote: > >>>>> On Thu, 2009-04-30 at 17:59 -0700, Andrew Morton wrote: > >>>>>> On Thu, 30 Apr 2009 10:51:47 +0200 > >>>>>> Karsten Mehrhoff wrote: > >>>>>> > >>>>>>> [1.] > >>>>>>> PROBLEM: No more agp card functionality with the patch 2.6.29.2 of > >>>>>> 'a/drivers/char/agp/generic.c' > >>>>>>> > >>>>>>> [2.] > >>>>>>> I compiled the kernel 2.6.29.2 with my .config of 2.6.29.1 and run > >>>>>> into problems with the speed of my ATI RADEON 9600 (rv350) > >>>>>>> > >>>>>> > >>>>> > >>>>> Is your problem speed issue ? ie just a slowdown ? Or does AGP stop > >>>>> working with this patch ? Slowdown is expected from this patch but > >>>>> it should hurt too much. > >>>>> > >>>> > >>>> 2.6.29.1 | 2.6.29.2 > >>>> -------- | -------- > >>>> glxgears ~ 2900 FPS | ~ 75 FPS > >>>> glxgears -fullscreen ~ 500 FPS | ~ 11 FPS > >>> Does this patch alone give so huge slowdown? From my little knowledge, > >>> xserver > >>> does agp pages allocation only at startup. > >> > >> I only reverted this patch in the source file > >> (/drivers/char/agp/generic.c) and got back my old speed on 2.6.29.2. > > > > Is the DRI enabled in both cases? Compare the Xorg.0.log file and the > > output of > > > > dmesg|grep -e agp -e drm > > > > > ********************************* > 2.6.29.2 (original) > ********************************* > > $ dmesg|grep -e agp -e drm > $ dmesg|grep agp > [ 0.861997] Linux agpgart interface v0.103 > [ 10.893793] agpgart: Detected NVIDIA nForce2 chipset > [ 10.939070] agpgart-nvidia 0000:00:00.0: AGP aperture is 64M @ 0xe0000000
No drm lines? > $ glxinfo | grep direct > direct rendering: Yes This is not a sufficient test anymore since swrast_dri.so is direct rendering but not hardware accelerated. Something like glxinfo|grep render can be used to verify both direct rendering and hardware acceleration (the latter but not the former is also possible with AIGLX). > (EE) RADEON(0): [agp] AGP failed to initialize. Disabling the DRI. [...] > For me it seems that agp failed to initialize because of the patch. Indeed. -- Earthling Michel Dänzer | http://www.vmware.com Libre software enthusiast | Debian, X and DRI developer ------------------------------------------------------------------------------ Register Now & Save for Velocity, the Web Performance & Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance & Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
