I now have R5A12 installed on my Abit IS-10-based system (onboard video), and have successfully recorded an HD show with my HD-3000 card. However, when I select "Watch TV" or try to watch my recorded show, the screen goes blank for a second or two, then mythfrontend exits with a segmentation violation.

Running the frontend in verbose mode with logging doesn't reveal much to me, except an occasional corrupt 'dmesg' when two messages apparently are logged simultaneously:

LiveTV:
...
2005-05-03 18:30:01.706 Broadcasting free space avail
2005-05-03 18:30:01.710 OutputAudioLoop: audio paused
2005-05-03 18:30:01.710 65536 bytes free on soundcard
2005-05-03 18:30:01.711 write->13 33 QUERY_RECORDER 1[]:[]IS_RECORDING:
2005-05-03 18:30:01.710 Realtime priority would require SUID as root.
2005-05-03 18:30:01.714 62200 bytes free on soundcard
2005-05-03 18:30:01.715 Using deinterlace method linearblend
2005-05-03 18:30:01.718 58876 bytes free on soundcard
2005-05-03 18:30:01.718 write->13 33 QUERY_RECORDER 1[]:[]IS_RECORDING:
2005-05-03 18:30:01.722 59636 bytes free on soundcard
2005-05-03 18:30:01.728 60880 bytes free on soundcard
2005-05-03 18:30:01.728 write->13 34 QUERY_RECORDER 1[]:[]GET_FRAMERATE:
2005-05-03 18:30:01.734 61944 bytes free on soundcard
2005-05-03 18:30:01.7329005-0 5-n0V3i d1i8a:V3i0deo:S0y1n.c7:3 9Co uChlda nontg ionpge nf rdoemv iNcoen e/ dteov /Wnavticdhiian0g,L iNvoe TsVuch d
evic2005-05-03 18:30:01.739 58984 bytes free on soundcard
2005-05-03 18:30:01.739 write->13 35 QUERY_RECORDER 1[]:[]GET_INPUT_NAME:
e or address
2005-05-03 18:30:01.740 DRMVideoSync: VBlank ioctl did not work, unimplemented in this driver?
2005-05-03 18:30:01.740 RTCVideoSync: Could not open /dev/rtc, Permission denied.
2005-05-03 18:30:01.740 Using audio as timebase
2005-05-03 18:30:01.741 Video timing method: USleep with busy wait
2005-05-03 18:30:01.741 Refresh rate: 33366, frame interval: 33366
2005-05-03 18:30:01.741 waiting for prebuffer...
-----------------------------------------------------------------
Playing a previously-recorded show:
...
2005-05-03 18:37:45.335 Broadcasting free space avail
2005-05-03 18:37:45.337 Changing from None to WatchingPreRecorded
2005-05-03 18:37:45.338 Realtime priority would require SUID as root.
2005-05-03 18:37:45.339 OutputAudioLoop: audio paused
2005-05-03 18:37:45.340 65536 bytes free on soundcard
2005-05-03 18:37:45.340 Using deinterlace method linearblend
2005-05-03 18:37:45.343 62196 bytes free on soundcard
2005-05-03 18:37:45.347 58868 bytes free on soundcard
2005-05-03 18:37:45.351 59636 bytes free on soundcard
2005-05-03 18:37:45.355 60404 bytes free on soundcard
2005-05-03 18:37:45.365 62324 bytes free on soundcard
2005-05-03 18:37:45.369 OutputAudioLoop: Stop Event
-------------------------------------------------------------
I tried R5A15, but after struggling with it for a while a fellow on the pcHDTV list mentioned the configuration for the tuner card on that version is more complex, so by going back to R5A12 I was finally able to record a program.

Any suggestions / pointers would be appreciated; my searches for 'segv' and 'sigsegv' didn't turn up anything close to this problem.

Thanks,

Charles

generally the problem with livetv is that you tune to a channel that doesn't have a good signal and can't get a lock. I suppose the same thing could happen with a recording. what are your signal strengths like?

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Xsecrets

Xs-

Thanks for the response! I've learned quite a bit about KnoppMyth from your other posts. In any case, signal strengths on a half dozen known good local stations are at 90+; I've already experienced what happens when you tune a bad one, and I figured since I had a big file in my /myth directory, that part at least seemed to be working.

Turns out the SIGSEGV issue was related to either an inadequate driver for the onboard video, or the HW itself - based on a suggestion from a different forum, I borrowed an Nvidia card (GeForce-2 AGP 4X) to try and that got the display to come up. It was slow / jumpy, but at least it worked.

So, despite seeing mention of hangs due to use of XvMC, I decided to go ahead and get the 5200 mentioned conspicuously in these forums. When I reinstalled the R5A12 software, though, I elected *not* to select XvMC for that reason. Video / audio is now OK with SD digital broadcasts, but still jumpy with HD. [This is with a 2.8 GHz P4 with HT, and 800MB FSB with 2GB of dual-channel RAM (no swap), a platform I'd hoped would be adequate without XvMC based on other information I'd seen.]

I've read notes about enabling Xv and not XvMC, but haven't discovered how to do that yet. In any case, I figured I'd try out XvMC and see what change that made. I found a script (as I recall, something like /usr/local/bin/install-i686-lx) which appeared to copy the necessary drivers over and rebooted, but now when I try to watch anything I get a message on the Myth GUI about being unable to initialize the video (this is from memory as I'm not at the machine now).

I'm reluctant to reinstall the software from scratch again due to an unrelated issue: I'm now running from my new 160 GB SATA drive which I have been unable to configure in the BIOS as "primary HD on first IDE controller". I finally had to do the installation onto a "little" 10GB ATA drive, then manually fdisk / mkfs / cpio the software over, alter lilo / fstab to use 'sda' instead of 'hda', then remove the ATA drive (so I could put the case together).

In any case, my next attempt will be to install the latest drivers from the Nvidia web site just in case whatever R5A12 contains doesn't handle the Nvidia 5200 card adequately (which would surprise me).

Thanks again,

Charles

any time you have a nvidia card the one thing you always want to do is install the nvidia drivers. you can do this on knoppmyth by running install-nvid<tab> as root.

_________________
Have a question search the forum and have a look at the KnoppMythWiki.

Xsecrets

Xs-

Thanks for the response. I've tried the install-nvidia*.sh script and also downloaded the latest drivers from Nvidia and tweaked the AGP setting per instructions in that 'readme'. [BTW, I haven't noticed anything to tell me what the AGP aperture size should be set to in BIOS; it seems to set itself to 128 MB, which agrees with the memory on the nVidia card, so I hope that's correct.]

The best I wound up with was a system that would play HD without *audible* glitches, but the video was *very* glitchy (not sure how to describe it, almost as if the frames were out of order, going backward and forward in time every second or so). Also, the 'Watch Recordings' screen was screwy; some of the text was blank or the wrong color, and the frames, etc. were sometimes missing - almost as if some of the output was being buffered and not making it to the screen before the next keypress. Also, the console window was unintelligle; filled with glyph-sized boxes whose shape varied where there was supposed to be text. Fortunately, I was able to 'ssh' in from another machine to futz around.

In any case, since I now have my DVD drive and I need to open up the case again to install it anyway, I'm thinking of putting the ATA drive back in and installing whatever the latest KnoppMyth is, since I believe I've seen enough notes in the forum that I think I can muddle through setting up the HD-3000 card.

Thanks again,

Charles