Bug 142376
| Summary: | noise instead of sound on AverMedia TV 878A PCI card | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Paul Osmialowski <newchief> |
| Component: | tvtime | Assignee: | Than Ngo <than> |
| Status: | CLOSED NOTABUG | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 3 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i686 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2004-12-10 19:18:52 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Finally problem is solved! I've put into /etc/modprobe.conf two lines: options bttv pll=1 automute=0 options tvaudio tda9874a=1 tda9874a_STD=6 Fitst line solves problem mentioned in bug 97139: automute=0 prevents from sound disappear when signal is weak. The 'pll=1' fixes problem with lack of colour on composite input (this setting is valid for my card, check onboard Xtal frequency for proper pll value!). Second line selects NICAM standard for TDA9874a/h chip which is the proper value for my card (and 2.6 kernel cannot detect that!!!!) |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20041111 Firefox/1.0 Description of problem: Two days ago I've upgraded my RH9 to FC3. This started terrible horror with watching TV. The sound has gone. I can only hear noise instead of it. I've got 878A-based PCI AVerMedia TVCapture 98 card detected as card=13 tuner=5 pll=1. Also 2.4 kernel from RH9 detected it that way. I was using this card for years with RH7.3, RH8.0 and RH9. At first I coulnd't get stereo sound, but after upgrade to RH9 everything was working perfect. Now I have noise instead of sound from TV channel. I've tried also xawtv and zapping from Dag Wieers packages page, but I couldn't get my sound back. I've tried to run kernel with acpi=off option, but it also didn't help. Searching for the solution over the net, I've found ftvco script that tries to combine different card numbers with different tuner numbers on modprobe and it also didn't help (on some combinations I got no sound at all, even noise). I've searched through google groups and I've found that there is also problem with sound on 2.6 kernels with newer AverMedia cards (new cx chipset), no solution was replied to such posts. Version-Release number of selected component (if applicable): tvtime-0.9.15-0.fc3.1 kernel-2.6.9-1.681_FC3 How reproducible: Always Steps to Reproduce: 1. Install AverMedia PCI card 2. Run tvtime or any watch-TV application, scan for TV channels 3. Try to watch TV Actual Results: Noise instead of sound from TV channel Expected Results: sound from TV channel Additional info: There wasn't such problem with 2.4 kernels. XawTV from Dag Wieers packages page (http://dag.wieers.com/packages/xawtv/xawtv-3.94-1.1.fc3.rf.i386.rpm) can't get proper audio mode for TV channels. I had this problem years ago, before I've installed RH9 (which also has XawTV as a part of distribution) at that times I couldn't get stereo sound. On RH9 everything was working fine. Other TV application seem not to have audio mode selection. On RH9 sometimes the sound was gone on weakly broadcasted channels (with low quality image) even when sound was actually fine. I've posted message about it on RH bugzilla months ago, finally I've get used to that.