<quote who="David Faure"> > On Wednesday 20 February 2008, Hans Verkuil wrote: >> On Saturday 02 February 2008 15:34:30 David Faure wrote: >> > Sorry for breaking the thread, I just subscribed. >> > A thread on ivtv-users pointed me to this thread here so I'm jumping >> > in :) >> > >> > I too have been experiencing loss of sound during recording with a >> > PVR-350. >> > >> > frank wrote on 31 Aug 2007: >> > > My card (pvr350) has been running fine for over a year (24x7), >> > > until I updated my SuSE with standard updates a few weeks ago. I'm >> > > pretty sure the problem did not exist with kernel 2.6.18.0.1, but >> > > now with 2.6.18.0.5 the sound breaks after 3-15min into recording. >> > >> > I just wanted to add that I don't believe it's kernel-upgrade >> > related. I have the problems with linux 2.6.17-10-386 + ivtv-0.7.1. I >> > am very interested in finding out which other package to upgrade or >> > downgrade to solve this very annoying problem, though :) >> > >> > Has this problem been solved meanwhile? >> > >> > If not, I will definitely watch for v4l2-ctl -C mute when the sound >> > drops to see if it's spontaneous muting or not; anything else I >> > should watch for? (PS: I'm clueless about drivers and other lowlevel >> > stuff but I can write C/C++ code, so if there's any part of the >> > driver code where debug output would give more info, I can hack it >> > in...) >> >> It's a bit of a fuzzy problem and it is not clear to me whether there is >> a real driver bug somewhere, or if it is really a hardware issue or >> something like that. > > I think it was a hardware issue after all. Without changing anything in my > setup, > it hasn't happened anymore for 3 months now. All I did was to be careful > about > the temperature of the computer, e.g. not turning it on too long before > recording time. > I think the machine has air flow issues and overheats, and this must be > what caused > the sound recording to break in the PVR. >
Try putting a floor fan near the case's open sides...Also see if your machine supports lm_sensors or the like. I have a few machines that get absolutely buggy if run too hot. Josh Becigneul _______________________________________________ ivtv-devel mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-devel
