Dave, Thanks for all of your input. I am running mythtv-0.16, I only tried the cvs version to see if that would fix it (it didn't).
Mike On Thu, 3 Feb 2005, Dave Meador wrote: > Mike, > > You may be bumping into code that is either under development and/or buggy-- > especially in the CVS version of mythtv... It could be the ivtv driver or > it could be the way mythtv uses the driver. Note that the cvs version of > mythtv has recently updated mythtv with respect the pvr_350 video out: > (file) mpegrecorder.cpp 1.47 13 hours ijr John > Harvey's reworked pvr-350 output patch. > (file) videoout_ivtv.cpp 1.37 13 hours ijr John > Harvey's reworked pvr-350 output patch. > > Anyway, hopefully there are some others out there that are using the pvr_350 > video-out that have run into this and can offer their insight on how to fix > this problem. Anyone? > > --Dave > > > -----Original Message----- > > From: [EMAIL PROTECTED] [mailto:ivtv-devel- > > [EMAIL PROTECTED] On Behalf Of Michael Papazoglou > > Sent: Wednesday, February 02, 2005 4:36 PM > > To: [email protected] > > Subject: RE: [ivtv-devel] mythtv stutter with program guide > > > > > > Ok, - > > > > When I'm watching tv, and everything seems fine, top says the cpu is 90% > > idle, and mythfrontend takes at most 2.0%. When the stuttering starts, > > idle drops down to 60%, and XFree86 goes up to 96% cpu usage. > > > > When the program is up but the tv picture is fine, then XFree takes about > > 20% of the CPU. > > > > My system is a 2 GHz athlon, using tv-out on the hauppauge 350 using > > the ivtvdev_drv.o that is in the ivtv-0.2.0-rc3f/utils directory. > > > > When the stuttering starts, XFree86 takes up approx 96% of the cpu > > > > Also, I should have stated earlier this stuttering problem only came up > > when I started using ivtv-0.2.0, it doesn't happen with > > ivtv-0.1.10-pre2-ck100z. > > > > Mike > > > > > > > > On Wed, 2 Feb 2005, Dave Meador wrote: > > > > > Can you open a telnet/ssh window from another terminal and run "top". > > Watch > > > the %idle value. If this is pegged at 100%, then your problem is that > > > mythtv is taking up too many CPU cycles. On my system, I can record > > and > > > playback simultaneously with around 10% utilization -- that's 90% idle > > for > > > clarification. > > > > > > * what is your processor speed? > > > * what is your video card hardware/driver? > > > * how much system memory do you have? > > > * Do you have a hardware-mpeg-tv-capture? > > > > > > Things to keep in mind: > > > * On slow hardware, e.g. less than 1Ghz processor if you do not have > > video > > > acceleration, you will likely will not have enough resources to record > > and > > > playback high quality video. You may need to lower your quality setting > > to > > > reduce CPU utilization to a level less than 100%. > > > > > > * If you do have video hardware capable of acceleration (mpeg2), then > > you > > > must configure/compile it to load and work with mythtv playback (for > > example > > > nvidia-XvMC, or VIA vld-XvMC). > > > > > > --Dave > > > > > > > -----Original Message----- > > > > From: [EMAIL PROTECTED] [mailto:ivtv-devel- > > > > [EMAIL PROTECTED] On Behalf Of Michael Papazoglou > > > > Sent: Wednesday, February 02, 2005 3:11 PM > > > > To: [email protected] > > > > Subject: RE: [ivtv-devel] mythtv stutter with program guide > > > > > > > > > > > > Ok, re-nicing mythfrontend fixed the stutter problem, BUT, now > > > > I can't change channels (using the program guide or typing in > > > > a new channel). Again nothing in the logs... > > > > > > > > So, without renicing, I get a stuttering program guide but I can > > > > change channels, and with renicing, i get nice smooth playback when > > > > the program guide is up, but I can't change channels! > > > > > > > > Mike > > > > > > > > On Wed, 2 Feb 2005, Dave Meador wrote: > > > > > > > > > Hi Mike, > > > > > > > > > > I had a similar problem and was able to help remedy this by > > launching > > > > > mythtvfrontend with the following command: > > > > > > > > > > nice -n -15 mythtvfrontend > > > > > > > > > > That forces the front end task to run at a very high priority. It > > will > > > > > consume only as many cpu cycles as necessary to maintain a smooth > > image, > > > > and > > > > > then yield the remaining time after it blocks -- at that point other > > > > > non-realtime requests will be serviced. The database requests and > > other > > > > > requests will now get executed at a lower priority which should > > prevent > > > > your > > > > > video playback from stuttering. That worked for me since I run the > > > > backend, > > > > > frontend, and the database server on the same machine (I have a > > EPIA-M > > > > 1Ghz > > > > > box). > > > > > > > > > > Hope that helps, > > > > > --Dave > > > > > > > > > > > > > > > > > ------------------------------------------------------- > > > This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting > > > Tool for open source databases. Create drag-&-drop reports. Save time > > > by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. > > > Download a FREE copy at http://www.intelliview.com/go/osdn_nl > > > _______________________________________________ > > > ivtv-devel mailing list > > > [email protected] > > > https://lists.sourceforge.net/lists/listinfo/ivtv-devel > > > > > > > > > ------------------------------------------------------- > > This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting > > Tool for open source databases. Create drag-&-drop reports. Save time > > by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. > > Download a FREE copy at http://www.intelliview.com/go/osdn_nl > > _______________________________________________ > > ivtv-devel mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/ivtv-devel > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting > Tool for open source databases. Create drag-&-drop reports. Save time > by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. > Download a FREE copy at http://www.intelliview.com/go/osdn_nl > _______________________________________________ > ivtv-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ivtv-devel > ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _______________________________________________ ivtv-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ivtv-devel
