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| PVR-350 Black Screen http://forums.linhes.org/viewtopic.php?f=1&t=398 |
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| Author: | chopsuey [ Sun Jan 04, 2004 2:05 am ] |
| Post subject: | PVR-350 Black Screen |
I have R4 working with a PVR-350, after some trial and error and help from the ivtv mailing list I have the TV out working. The problem is when I am watching live TV or a recording the play back is very jerky. I do not have the option selected in MythTV to use the 350 TV out because when I select this all I get is a black screen when watching live TV. I assume the play back is jerky because the video is not going through the MPEG decoder, also the CPU usage is quite high, 90%+. Any ideas what I need to do to fix this? |
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| Author: | serich [ Sun Jan 04, 2004 2:51 pm ] |
| Post subject: | Ditto: PVR-350 Black Screen |
Quote: I have R4 working with a PVR-350, after some trial and error and help from the ivtv mailing list I have the TV out working. The problem is when I am watching live TV or a recording the play back is very jerky. I do not have the option selected in MythTV to use the 350 TV out because when I select this all I get is a black screen when watching live TV. I assume the play back is jerky because the video is not going through the MPEG decoder, also the CPU usage is quite high, 90%+. Any ideas what I need to do to fix this?
I have this exact same problem(s). Until I get this fixed I switched from pipeing X through the 350-out to piping X through a VGA card to a monitor. Even going through a VGA card for X I can't get TV 350-out working, and get the same black screen. I can however view TV in X with a monitor just fine runing 50%cpu [P3 800, 128ram]. As a side note, I followed the instructions at http://mysettopbox.tv/phpBB2/viewtopic.php?t=69&highlight=350+guide and modprobe ivtv-fb did not give any output to /var/log/messages, and dd if=/dev/video of=/dev/video16 bs=64k piped sound, but no video out the 350 output. So if someone knows what to do to fix that I'd really appreciate it! ~Erich |
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| Author: | grant [ Sun Jan 04, 2004 6:16 pm ] |
| Post subject: | |
serich, you most likely don't have the right input selected. and since you are getting sound you probably also don't have the sound i/o stuff configured properly. try calling test_ioctl -p 4 to set the input to be the tuner. if you see video but your sound stops working, then you need to fix it by playing with test_ioctl -v input=?,output=? where the ?'s are replaced by some numbers... on mine its input=1,output=2... but I've also seen input=1,output=3 just a guess though... grant |
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| Author: | chopsuey [ Mon Jan 05, 2004 12:47 am ] |
| Post subject: | |
Well I was very close earlier today to getting it working, I figured out that for some reason the alpha is not getting set correctly and the video is actually "behind" the black as I figured out from the ivtv list. I tried to upgrade to 0.13 and that didn't go so well and I hosed things up, so I am going to start over again tomorrow night or else I may just wait for R5 and see if that makes things easier. |
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| Author: | demon4870 [ Mon May 31, 2004 10:54 pm ] |
| Post subject: | |
Im getting Sound but no picture on my pvr-250 after a fresh R4 install and I can only get the sound to come up it I do test_ioctl -p 4 I cant change channels either is stuck on channel for because I can hear Connan. **EDIT** And After 12 hours, I rebooted and its fine! 
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