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| CN400 Unichrome and HD http://forum.linhes.org/viewtopic.php?f=15&t=18355 |
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| Author: | bpierce815 [ Thu May 29, 2008 10:08 pm ] |
| Post subject: | CN400 Unichrome and HD |
I am running into issues playing HD over the hardware decoder in my SP13000. I have 2 tuners in my backend, one a PVR250, the other an AverTV 180A HD. I can play SD quite well and have verified that it is going through the hardware decoder. When I try to play the HD, Myth crashes and leaves the following in X.org.log DRM memory allocation failed (EE) CHROME(0): [XvMC] ViaXvMCCreateSurface: Unable to allocate frambuffer memory! I'm running Knoppmyth R5F27 on the SP13000 with 512 MB of RAM over PXE boot. Any help would be appreciated. |
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| Author: | cliffsjunk [ Fri May 30, 2008 8:13 am ] |
| Post subject: | |
If this is a graphics card built into the motherboard you might try jacking up the amount of memory given to the video card. You do this in the BIOS. Cliff |
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| Author: | jorin [ Fri May 30, 2008 8:50 am ] |
| Post subject: | |
This looks like an interesting board. Can you tell us more about it? First glance it doesn't look like enough horsepower to handle HD. It's a Via 1.3Ghz CPU? If the on-board hardware decoder is working and can do full HD it might be a cheap frontend. Though the AppleTV is pretty cheap and nice to look at. |
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| Author: | bpierce815 [ Fri May 30, 2008 5:38 pm ] |
| Post subject: | CN400 |
I have jacked up the memory to the max (64M) allowed in the bios. The board does do hardware decoding with viaXVMC. This board is supposed to do HD decoding up to 1080i, however I have yet to get it to work with HD. It crashes immediately every time an HD is played. |
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| Author: | Truck [ Sat May 31, 2008 12:51 am ] |
| Post subject: | |
I really doubt this will fix your problem, and I am very uneducated in terms of linux. BUT I had problems with my nVidia video card even being able to boot and I had to add vmalloc=512MB into my append="..." line in the /etc/lilo.conf file. So for example my append line in /etc/lilo.conf now reads: append="splash=silent apm=power-off nomce quiet vmalloc=512MB pci=routeirq "Also remember that you will have to run lilo as root after modifying the lilo.conf file. My box has 1GB of ram and setting the vmalloc to 512MB does not seem to affect the use of RAM by programs, so I must admit I am not too sure what it does, just that it seems to fix Video Memory problems, which it looks like you have. - cheers |
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| Author: | bpierce815 [ Sun Jun 01, 2008 12:08 pm ] |
| Post subject: | Seems to be a mythtv issue. |
I can use xine to play the files just fine. This appears to be an issue with MythTV. I wonder if it has been fixed in Mythtv0.21. I'm going to hop over to the Mythtv forums and check it out. |
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| Author: | bpierce815 [ Thu Jun 05, 2008 10:30 pm ] |
| Post subject: | gotten farther along |
I have gotten much farther along. I set my default color depth to 32 instead of 24 in xorg.conf. This stops mythtv from crashing and the mpeg2stream is decoded. However, The screen does not display the video. Instead it is a blank blue background. Audio is playing flawlessly. I investigated this and it appears to be an issue with mythtv. See http://svn.mythtv.org/trac/ticket/1842 . The issue has been fixed for Mythtv0.21 but I don't think it was released for 0.21. I am hoping that Cecil included this patch in R5.5. If not, I'll probably have to recompile. |
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| Author: | cliffsjunk [ Fri Jun 06, 2008 12:07 am ] |
| Post subject: | Re: gotten farther along |
bpierce815 wrote: ...t appears to be an issue with mythtv. See http://svn.mythtv.org/trac/ticket/1842 . The issue has been fixed for Mythtv0.21 but I don't think it was released for 0.21. I am hoping that Cecil included this patch in R5.5. If not, I'll probably have to recompile.
If it is an issue for more than one user you might want to PM Cecil/Dale/tjc. Cliff |
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| Author: | nigelpearson [ Sat Jun 07, 2008 2:38 am ] |
| Post subject: | Re: gotten farther along |
bpierce815 wrote: issue with mythtv. See http://svn.mythtv.org/trac/ticket/1842 . The issue has been fixed for Mythtv0.21 but I don't think it was released for 0.21. I am hoping that Cecil included this patch in R5.5.
As far as I can tell, ticket 1482 was resolved in changeset 14477, which was well before the 0.21 branch was created (see http://cvs.mythtv.org/trac/log/branches ... ollow_copy). No idea about this particular decoding bug, though. |
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