On Wed, 19 Jan 2005 08:26:58 +0100, Thomas B�rkel <[EMAIL PROTECTED]> wrote: > HI! > > Darren Richards wrote: > > > I've had my mythtv setup running solidy for nearly a year now with > > FC1. I decided to upgrade my hard drive and the OS at the same time. > > I've installed FC3 with the 2.6.10-1.741_FC3 kernel. I used apt-get > > and Jarod's guide. > > > > With FC1, watching live TV or a recording would take about 30% ov my > > cpu. Now mythfrontend and X together are taking 95-100% of my CPU. > > I've searched the archives and I suspect the problem may be related to > > agpgart. I have an nvidia graphics card and I want to use NvAGP, but > > even though I set "NvAGP" "1" in xorg.conf, agpgart is still getting > > loaded. > > > > /proc/driver/nvidia/agp says: > > > > AGP initialization failed, please check the output > > of the 'dmesg' command and/or your system log file > > for additional information on this problem. > > > > dmesg contains the following lines: > > > > NVRM: not using NVAGP, AGPGART is loaded!! > > NVRM: not using NVAGP, AGPGART is loaded!! > > > > I've tried adding agpgart to /etc/hotplug/blacklist, but it still gets > > loaded. > > If you look at /proc/driver/nvidia/agp/status you'll notice, that AGP is > disabled in your case (AGPGART loaded and NvAGP=1), resulting in very > high CPU usage of X. > > I have had the same problem with 2.6.9 and FC2 (Celeron 1.3 GHz). I have > come to the conclusion, that you cannot use NVidia's AGP driver, if > AGPGART is compiled into the kernel (I have tried several kernel boot > parameters to get rid of AGPGART unsuccessfully). > > So, I have set NvAGP=3 in xorg.conf and so AGPGART is being used (again > check /proc/driver/nvidia/agp/status). > > X is still using CPU, but much less (13%). I don't know, if it would use > only 1% CPU with NVidia-AGP, as it does on another machine with > FC1/Kernel 2.4/NvAGP=1 or if the higher X usage is coming from > FC2/Kernel 2.6. At least the prebuffering pauses are gone with AGPGART. > > Please let me know, what your CPU usage of X is with NvAGP=3. > > Thomas
NvAGP=3 didn't seem to help much. I think I'm seeing fewer prebuffering pauses, but X is still taking about 40% and mythfrontend is taking about 55%. If I enable kernel deinterlacing (which I used with FC1), I still get a prebuffering pause every 2-3 seconds. It looks like my only solution is to compile the kernel without agpgart, unless there's an rpm package out there somewhere. I've never compiled a kernel before... -darren _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
