I've double checked using old recordings and DVD's and i do have sound playback working just fine. However Live TV and recorded TV under R5E50 is giving me no sound.

In case they were related I tried switching resolution and various other options, but no joy. If this has been covered elsewhere and I missed it, I apologize, I assume the problem is likely to do with upgrading from a .18 release (I believe one of the later ones). I apologize for the lack of version info also. Apparently in the process of trying to allow drakconf to configure a few things on this desktop machine this morning it also decided to randomly update about 300 different packages. So I have a web browser, but vi is broke (for example).

I managed to kill my old ssh key, so here is some information from the living room box:
ASUS P4P800, P4 1.6 (onboard AC-97 sound - works)
GeForce 440MX (PCI) (works)
PVR-350 (works except for sound input)
PVR-500 (not messing with it yet)
Lite-on DVD (works)


Interesting entries at the endd of all 3 ivtv card detections:

I also have the issue where when starting up the mythtv-backend doesn't start. I'm not sure if this is related, but I figured I would mention it.

Let me know if there is anything else that would be useful.

Additional piece of info:
I just plugged in the 500 and setup it up via mythtv-setup. It has sound.

Also, the 350 is still physically working (mening I'm either missing a driver or a config). I tested this by going back to the old harddrive and watching TV and sound worked.

I am 99% sure I setup the card again from scratch in mythtv-setup, but if I didn't do I have to delete both cards and recreate them both? Am I missing an option to only delete a single card and recreate it?


Also, i think I figured out part of the issue that people are having with mythbackend not starting. I think there must be a lock or something similar that is created when the service starts. On the boots that it doesn't work on, the system will not let you do a straight /etc/init.d/mythtv-backend start and complains that it is already running. However a restart will admit that it can't find a copy running and then promptly starts it up. Is a PID being written and checked somewhere, or some sort of lock? Is this something that could be solved simply by having a script run when the box is shutting down to clear whatever is being left behind?

- On the "no sound in recordings" issue: The audio on the card maybe muted for some reason. Search for "mute" and "v4l2-ctl" for information on diagnosing and fixing this.

- On the backend restart issue: This is already well understood. There is a bug in /etc/init.d/mythtv-backend. Searching for that name should turn up the fix I posted.

If you haven't already seen the "R5E50 Upgrade hints and hazards" posting it is recommended reading for ALL KnoppMyth installs. Please read the whole thread as there are updates and additional information which haven't been folded back into the head posting.

Tarwn
I have the same problem and have tried most of the fixes mentioned here and elsewhere with the exception of one. My install was fresh not an upgrade, the fourth attemp included the intelfix boot option which also did not help probably because it's not the chip mentioned but thought I try it.

Here's mine, looks the same as Tarwn:
=====

root@mythtv-ATH:~# lsmod | grep snd
snd_intel8x0 32156 0
snd_ac97_codec 94116 1 snd_intel8x0
snd_ac97_bus 6144 1 snd_ac97_codec
snd_pcm_oss 42912 0
snd_mixer_oss 18176 1 snd_pcm_oss
snd_pcm 69380 3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer 22404 1 snd_pcm
snd 47588 6 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore 11360 1 snd
snd_page_alloc 11784 2 snd_intel8x0,snd_pcm

=====

The one thing I didn't try was found on the Mythdora forum. Perhaps there is something similar for Knoppmyth. In part:
# rpm -e alsa-driver
# rpm -e alsa-kmdl-2.6.18-1.2257.fc5smp
then reboot

found here: http://g-ding.tv/?q=node/1095

Tarwn
I have the same problem and have tried most of the fixes mentioned here and elsewhere with the exception of one. My install was fresh not an upgrade, the fourth attemp included the intelfix boot option which also did not help probably because it's not the chip mentioned but thought I try it.

Here's mine, looks the same as Tarwn:
=====

root@mythtv-ATH:~# lsmod | grep snd
snd_intel8x0 32156 0
snd_ac97_codec 94116 1 snd_intel8x0
snd_ac97_bus 6144 1 snd_ac97_codec
snd_pcm_oss 42912 0
snd_mixer_oss 18176 1 snd_pcm_oss
snd_pcm 69380 3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer 22404 1 snd_pcm
snd 47588 6 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore 11360 1 snd
snd_page_alloc 11784 2 snd_intel8x0,snd_pcm

=====

The one thing I didn't try was found on the Mythdora forum. Perhaps there is something similar for Knoppmyth. In part:
# rpm -e alsa-driver
# rpm -e alsa-kmdl-2.6.18-1.2257.fc5smp
then reboot

found here: http://g-ding.tv/?q=node/1095

Apparently the local search is down, so I will look into the "mute" and "v4l2-ctl" search through google, thanks.

I read the whole upgrade guide about 3 times Thats actually how I knew I had to blow away my cards in the setup and recreate them, and also how I fixed my lirc issue.

I had forgotten about the backend restart thread until after I posted and went back and added my independent observations. I'm going to be trying the alteration to the startup script mentioned in the other thread as I am fairly certain a leftover PID is the the source of the problem.

I'll post back with the success/failure of my search and any steps I take on it.

I had it working, I swear.

Apparently the first card didn't even have the option to mute, while the second had both channels set to mute=0.

I determined that the msp3400 issue was part of it. Found out that it doesn't support the option simple=1 in the module configuration (I assume this is from an older version). Removed that and could manually modprobe msp3400. After the first reboot it also loaded fine and it suddenly had a mute=0 option. Sound was working.

At some point something else screwed up as I have again lost sound on the first tuner card despite still having mute=0. gah. Before this occurred my system somehow completely lost the card and video0+vdeo1 started both pointing to the 500, with the 350 nowhere to be found. Unfortunatly I will have to take a break before troubleshooting further as I have a greater issue at the moment concerning total system freeze and it appears the forums are available again, so hopefully search will be working again.

There is a fixups script that runs after the restore which attempts to make those edits for you, but it can be fooled by an oddly formatted /etc/mythtv/modules/ivtv file.


Search is still borked. You've most liikely encountered the udev card shuffle problem. Look for recent threads about card order changing. There's a way to get udev to make stable assignments by telling it which device name to assign to a given PCI address.

The issue I am trying to resolve now is that going to the onscreen guide while watching Live TV freezes the entire system. I have had it not freeze the system one time (though it still froze the front-end). I'm playing with BIOS settings because there is some overlap with my interupts (nvisia and ivtv1 are sharing an interupt, ivtv2 is sharing with skge).

I can take my time getting the first card to work again if I can solve the guide issue. I'm wondering if mbmon pegging the system is related. I've tried various settings with turning off ACPI, APIC, PNP to try to get the interupts shuffled a little better, but no luck so far. The only consistent hits I am getting on the guide locking up the system are from .18. I'm almost wondering if I should try physically shuffling the cards around to see what happens.

What output resolution are you using? Program guide related freezes tend to be correlated to higher resolutions and drivers with less video acceleration support. Make sure you're using the nvidia driver (rather than "nv", "vesa" or something else) and then we can talk about tweaking some settings. It's counterintuitive to a lot of folks, but for TV output 640x480 is going to give you a better picture than 800x600 or 1024x768 because the card doesn't have to play ugly scaliing games, and it should help you avoid that other problem.

I believe I am using 800x600 because there were several apps that wouldn't scale to 640x480 (such as the DVD creation one) in the version I was previously using. I'm assuming the easiest way to force 640x480 is to remove the 800x600 option from the Screen section, yes?

I am using the nvidia driver according to lsmod and my xorg.conf file.

I apologize for just continuing this thread on and on, but with the search function down it's harder to find related posts because usually these types of problems don't show up until long after the post title

You are the man!

640x480 did the trick and also removed the need for the GUI offsets that I had put to make it work before (bonus).

I also determined the mbmon issue was simply that my motherboard was not responding. At the moment I don't care much, as this is strictly a feature, but I found some documentation and commented out the rrd_mbtemp as a temporary solution.

I'm off to find something else to break, thanks again for the pointers


-- Edited for poor spelling that even FF can't help with

I am having the same issue of no sound and tried deleting my capture card as suggested for the mute issue, but I was not able to enter mythtv-setup. When I try to run it I get an error "Cannot connect to X server".
Everything else seems to be working, sound on previously recorded (before the upgrade) shows works fine, just not live TV or anything I record now. I have a PVR-350 if that makes a difference.

I still haven't resolved that issue, unfortunatly. Until I have some time I am stuck with only the two channels from the 500.

I was having the same error

ivtv0: i2c hardware 0x00000008 (msp3400) not found for command

check this thread:

http://mysettopbox.tv/phpBB2/viewtopic.php?p=83429