On Tue, Jan 16, 2007 at 09:53:21PM +0200, Kartsa wrote: > >Have you tried OProfile or strace -p <pid of vdr>, or attaching gdb to > >the running vdr process? > > > Hmm, what's OProfile? I am not quite sure if I am starting matroxfb in > the right place. OProfile is a continuous profiler for processors that contain performance counters, such as CPU_CLK_UNHALTED (which is incremented on every clock cycle when the processor is unhalted). Similar tools include DCPI on Digital UNIX and Intel VTune on Windows. > For some reason I can not get it to load automatically > with udev settings. There is a There is a what? You could add matroxfb to /etc/modules. > >I'm using a statically compiled matroxfb. I've used vdr+softdevice for > >almost 2 years now, and I haven't had any problems for about a year. > >(I reported quite a few issues that were fixed.) > > > I selected vdr+softdevice with matrox because I've read so many good > things about it. Like small cpu resource needs since I've got only PII > 550. I have a Celeron running at 900 MHz, and the CPU load is around 60%. The VGA output of the Matrox saves some 10% or 20% of CPU, because the colour space transformation can be avoided. But I'm using the TV output with a self-built Matrox to SCART cable. > What should I do to get debugging info since there is nothing in the > syslog. Attach strace to the vdr process to see the system calls. Redirect the output to a file, and kill vdr after a couple of seconds. Or start OProfile with opcontrol for a few seconds during the CPU diversion. After opcontrol --stop, you can view the statistics with something like opreport -l /path/to/vdr|less I don't know if the Pentium II implements any performance counters. I've only run OProfile on Celeron and later processors from Intel and AMD. > Log shows that vdr seems to have started normally and I can get > a picture which ofcource is a slideshow of still pictures because of the > cpu load. Normally changing to a radiostation drops cpu load to some 5% > but even that dont have any effect. Only restarting vdr helps. > > Can poor antenna signal cause something like this? Normally I have cable > at home and I and constructing a "new" vdr to be taken to my summer home > where we have aerial. At home my dvb-t signal if avfully poor. Poor antenna signal used to crash softdevice, but I'm not sure about the CPU load. I usually have very good reception, so I cannot say. Does it make any difference if you suspend the output of softdevice? Marko
