On Wed, 2009-04-15 at 16:37 -0400, faginbagin wrote: > I am having what I believe is the same problem as the OP, namely static > in the audio of recordings from the analog tuner of the HVR-1600, > connected to cable. The static is worse on some channels than others. I > haven't done an exhaustive test, but channel 29 is really annoying, > while channels 3, 8 and 67 are tolerable. > > I'd be happy to help debug the problem, but thought I'd first check if > it's already understood and being worked on. If not, I'll start > gathering data as described in the first reply to this thread. > > Some details: > ASUS M3N78 PRO mobo > AMD Athlon X2 4850e CPU > Hauppauge HVR-1600 model 1199 > Linux 2.6.28 64 bit (mythbuntu jaunty 9.04 beta) > v4l-dvb drivers from Apr 14 2009 > > I also have an older computer with: > ECS RS482-M754 mobo > AMD Sempron 3100+ CPU > Hauppauge PVR-150 model 1045 > Linux 2.6.24 32 bit (mythbuntu hardy 8.04) > ivtv drivers provided by distro > > I have swapped tuners and connections to confirm the problem is with the > card and/or driver. For example, when the PVR-150 is installed in the > new computer, there is no static in its channel 29 recordings. > > So far, I've only used mythtv to troubleshoot, but I'm sure I can figure > out how to use your utils. I've got 23 years experience as a developer. > > I don't have anything hooked up to the composite/s-video/audio inputs at > the moment. But if it would help, I'll scrounge up something to feed > into it.
Helen, First try: 1. (killing the mythbackend) 2. modprobe -r cx18 3. modprobe cx18 4. (restart the mythbackend) at see if that helps with the audio from the tuner. If it does, could you then try the cx18 driver from this repo: http://linuxtv.org/hg/~awalls/cx18-init-debug/ and set things up so that options cx18 debug=15 is set in /etc/modprobe.conf (or whatever you distro uses). I'd like to see the messages from the initialization of the cx18 driver at boot. I'm especially looking for any occurrance of the error messages in this patch: http://linuxtv.org/hg/~awalls/cx18-init-debug/rev/93828c207b80 when the driver is loaded automatically at boot-up. Regards, Andy > Thanks, > Helen _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
