Re: [linux-dvb] Hauppauge PVR-150 Vertical sync issue?
Well it gets even better. So on the weekend I was able to steal a few minutes to properly trouble shoot the issue now that I know it was in the mythbuntu box. As a long shot I pulled out the Promise Tech Ultra133 TX2 / ATA card I am using for the backup drive. With this card removed the sync issue went away, when I put the card back in the issue returned. Now this card was in the slot right next to the PVR-150 card. I moved the controller card as far away as I could get from the PVR-150 and the sync issue was gone. So it would appear that the Promise Tech card was causing some EM interference with the PVR-150 card. I will keep an eye on this to make sure that this was indeed the issue. Does it seem reasonable that this card would kick out interference like this? -Rob On Fri, Dec 18, 2009 at 3:13 PM, Steven Toth st...@kernellabs.com wrote: So it looks like the problem is restricted to my mythbuntu box. Congrats, that's better news. -- Steven Toth - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] Hauppauge PVR-150 Vertical sync issue?
On Mon, Dec 21, 2009 at 3:09 PM, Robert Longfield robert.longfi...@gmail.com wrote: Well it gets even better. So on the weekend I was able to steal a few minutes to properly trouble shoot the issue now that I know it was in the mythbuntu box. As a long shot I pulled out the Promise Tech Ultra133 TX2 / ATA card I am using for the backup drive. With this card removed the sync issue went away, when I put the card back in the issue returned. Now this card was in the slot right next to the PVR-150 card. I moved the controller card as far away as I could get from the PVR-150 and the sync issue was gone. So it would appear that the Promise Tech card was causing some EM interference with the PVR-150 card. I will keep an eye on this to make sure that this was indeed the issue. Does it seem reasonable that this card would kick out interference like this? Having worked at a lab that did EMI compliance testing, I can definitely tell some stories of cases far stranger than that. But yeah, if the card works in a different slot, then it's unlikely any sort of PCI bus congestion issue but rather an EMI problem. Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] Hauppauge PVR-150 Vertical sync issue?
On Mon, 2009-12-21 at 15:09 -0500, Robert Longfield wrote: Well it gets even better. So on the weekend I was able to steal a few minutes to properly trouble shoot the issue now that I know it was in the mythbuntu box. As a long shot I pulled out the Promise Tech Ultra133 TX2 / ATA card I am using for the backup drive. With this card removed the sync issue went away, when I put the card back in the issue returned. Now this card was in the slot right next to the PVR-150 card. I moved the controller card as far away as I could get from the PVR-150 and the sync issue was gone. So it would appear that the Promise Tech card was causing some EM interference with the PVR-150 card. I will keep an eye on this to make sure that this was indeed the issue. Does it seem reasonable that this card would kick out interference like this? Yes, it is plausible. Perhaps you may also wish to consider an external (USB connected) capture device. A PC can internally have many sources of square waves that have either fundamental or harmonic frequencies in UHF. The metal case of a PC can greatly reduce the EMI on outside of the case. Regards, Andy -Rob On Fri, Dec 18, 2009 at 3:13 PM, Steven Toth st...@kernellabs.com wrote: So it looks like the problem is restricted to my mythbuntu box. Congrats, that's better news. -- Steven Toth - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] Hauppauge PVR-150 Vertical sync issue?
Ok so I ran a live CD on my windows box and there were no sync problems. I installed the latest Ubuntu CD and dual booted my windows machine and there was no sync problems but there was other issues, many tiny black lines on edges during fast movement when I did a $ cat /dev/video0 foo.mpg. I'm going to reboot into windows and see if this problem persists in Windows. So it looks like the problem is restricted to my mythbuntu box. What analog tuner assembly type does the tveeprom module show for your card in dmesg? Here is the data from dmesg for tveeprom: [ 27.806567] tveeprom 0-0050: Hauppauge model 26032, rev C199, serial# 8011004 [ 27.806571] tveeprom 0-0050: tuner model is TCL 2002N 5H (idx 99, type 50) [ 27.806574] tveeprom 0-0050: TV standards NTSC(M) (eeprom 0x08) [ 27.806576] tveeprom 0-0050: audio processor is CX25841 (idx 35) [ 27.806579] tveeprom 0-0050: decoder processor is CX25841 (idx 28) [ 27.806581] tveeprom 0-0050: has no radio, has IR receiver, has IR transmitter Also what video standard are you capturing: NTSC or something else? I'm capturing NTSC. On Fri, Dec 11, 2009 at 4:32 AM, Andy Walls awa...@radix.net wrote: On Thu, 2009-12-10 at 11:56 -0500, Robert Longfield wrote: Ok I've been able to do some troubleshooting with some interesting results. I removed the one splitter being used, connected to the main cable coming into the house, isolated the grounds with no change in sync issues. I pulled the pvr-150 card out of the linux machine and put it into my window box, hooked it up to the original setup splitter and no ground isolation and the video is crystal clear with no sync issues. I can only come up with a few possible problems, but I am sure there are more. Could this be a driver issue on my linux box? Given your results, yes it is most likely a linux driver issue. The suspects would be the cx25840 module, or the modules for the analog tuner. What analog tuner assembly type does the tveeprom module show for your card in dmesg? Also what video standard are you capturing: NTSC or something else? Could a bad or failing PCI slot cause this problem? No. A *very* busy PCI bus may cause some I2C transactions that set up the tuner or CX25843 to fail, but it is more likely simply a suboptimal tuner or CX25843 configuration issue. However the sync problem is not on every channel. I'm going to try moving the linux box across the house to see if there is a source of EMI near by, but since the windows box doesn't have this issue I assume this is a problem with the linux box. I suppose you could try a linux liveCD in the Windows box and use $ cat /dev/video0 foo.mpg to capture video. Then move foo.mpg to a USB flash disk and play back foo.mpg where ever it is convenient. If foo.mpg shows artifacts then you can be somewhat sure of a linux driver issue. -Rob On Tue, Nov 24, 2009 at 6:43 PM, Andy Walls awa...@radix.net wrote: On Tue, 2009-11-24 at 13:05 -0500, Robert Longfield wrote: I have a PVR-150 card running on mythbuntu 9 and it appears that my card is suffering a vertical (and possibly a horizontal) sync issue. The video jumps around, shifts from side to side, up and down and when it shifts the video wraps. I'm including a link to a screen shot showing the vertical sync problem http://imagebin.ca/view/6fS-14Yi.html It looks like you have strong singal reflections in your cable due to impedance mismatches, a bad splitter, a bad cable or connector, etc. Please read: http://www.ivtvdriver.org/index.php/Howto:Improve_signal_quality and take steps to ensure you've got a good cabling plant in your home. Regards, Andy This is pretty tame to what happens sometimes. I haven't noticed this on all channels as we are mostly using this to record shows for my son. Here is my setup. Pentium 4 2 Ghz with a gig of ram. 40 gig OS drive, 150 gig drive for recording, 250 gig drive for backup and storage, a dvd-burner. The 150 gig drive is on a Promise Ultra133 TX2 card but exhibits no issues on reads or writes. I have cable connected to the internal tuner of my PVR-150 card and S-video from an Nvidia card (running Nvidea drivers) out to the TV. I don't know what else I can provide to help out but let me know and I'll get it. Thanks, -Rob -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] Hauppauge PVR-150 Vertical sync issue?
So it looks like the problem is restricted to my mythbuntu box. Congrats, that's better news. -- Steven Toth - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] Hauppauge PVR-150 Vertical sync issue?
On Fri, 18 Dec 2009, Robert Longfield wrote: Ok so I ran a live CD on my windows box and there were no sync problems. I installed the latest Ubuntu CD and dual booted my windows machine and there was no sync problems but there was other issues, many tiny black lines on edges during fast movement when I did a $ cat /dev/video0 foo.mpg. This sounds like an interlacing issue -- I suspect you are using some player that delivers 25 full frames per second to your display instead of somehow getting 50 partial fields from them or interpolating the fields into 50 frames per second. This is fairly normal when not dealing with progressive material (720p HD video, or 1080i HD or even SD video taken from source material such as film shot at 24 fps). Most players have options to enable one of any number of deinterlacers, some of which work better than others for selected movement. (There are many different commandline options for `mplayer', one of which will present the fields of a 576i video as 288-line images which helps decipher fast-scrolling text, for example.) If you are reproducing your video at your display's native resolution without zooming it to fullscreen, you can see each of the jagged lines matching one pixel vertical resolution. barrry bouwsma -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] Hauppauge PVR-150 Vertical sync issue?
Hey Barry, Well that is certainly could be part of the problem, I was using mplayer to play back the video recorded onto the computer monitor. I wasn't too overly concerned with it as I thought it might be a playback issue. I certainly have a lot more trouble shooting to do before I figure out where the issue lies with this hardware. -Rob On Fri, Dec 18, 2009 at 3:17 PM, BOUWSMA Barry freebeer.bouw...@gmail.com wrote: On Fri, 18 Dec 2009, Robert Longfield wrote: Ok so I ran a live CD on my windows box and there were no sync problems. I installed the latest Ubuntu CD and dual booted my windows machine and there was no sync problems but there was other issues, many tiny black lines on edges during fast movement when I did a $ cat /dev/video0 foo.mpg. This sounds like an interlacing issue -- I suspect you are using some player that delivers 25 full frames per second to your display instead of somehow getting 50 partial fields from them or interpolating the fields into 50 frames per second. This is fairly normal when not dealing with progressive material (720p HD video, or 1080i HD or even SD video taken from source material such as film shot at 24 fps). Most players have options to enable one of any number of deinterlacers, some of which work better than others for selected movement. (There are many different commandline options for `mplayer', one of which will present the fields of a 576i video as 288-line images which helps decipher fast-scrolling text, for example.) If you are reproducing your video at your display's native resolution without zooming it to fullscreen, you can see each of the jagged lines matching one pixel vertical resolution. barrry bouwsma -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] Hauppauge PVR-150 Vertical sync issue?
On Thu, 2009-12-10 at 11:56 -0500, Robert Longfield wrote: Ok I've been able to do some troubleshooting with some interesting results. I removed the one splitter being used, connected to the main cable coming into the house, isolated the grounds with no change in sync issues. I pulled the pvr-150 card out of the linux machine and put it into my window box, hooked it up to the original setup splitter and no ground isolation and the video is crystal clear with no sync issues. I can only come up with a few possible problems, but I am sure there are more. Could this be a driver issue on my linux box? Given your results, yes it is most likely a linux driver issue. The suspects would be the cx25840 module, or the modules for the analog tuner. What analog tuner assembly type does the tveeprom module show for your card in dmesg? Also what video standard are you capturing: NTSC or something else? Could a bad or failing PCI slot cause this problem? No. A *very* busy PCI bus may cause some I2C transactions that set up the tuner or CX25843 to fail, but it is more likely simply a suboptimal tuner or CX25843 configuration issue. However the sync problem is not on every channel. I'm going to try moving the linux box across the house to see if there is a source of EMI near by, but since the windows box doesn't have this issue I assume this is a problem with the linux box. I suppose you could try a linux liveCD in the Windows box and use $ cat /dev/video0 foo.mpg to capture video. Then move foo.mpg to a USB flash disk and play back foo.mpg where ever it is convenient. If foo.mpg shows artifacts then you can be somewhat sure of a linux driver issue. -Rob On Tue, Nov 24, 2009 at 6:43 PM, Andy Walls awa...@radix.net wrote: On Tue, 2009-11-24 at 13:05 -0500, Robert Longfield wrote: I have a PVR-150 card running on mythbuntu 9 and it appears that my card is suffering a vertical (and possibly a horizontal) sync issue. The video jumps around, shifts from side to side, up and down and when it shifts the video wraps. I'm including a link to a screen shot showing the vertical sync problem http://imagebin.ca/view/6fS-14Yi.html It looks like you have strong singal reflections in your cable due to impedance mismatches, a bad splitter, a bad cable or connector, etc. Please read: http://www.ivtvdriver.org/index.php/Howto:Improve_signal_quality and take steps to ensure you've got a good cabling plant in your home. Regards, Andy This is pretty tame to what happens sometimes. I haven't noticed this on all channels as we are mostly using this to record shows for my son. Here is my setup. Pentium 4 2 Ghz with a gig of ram. 40 gig OS drive, 150 gig drive for recording, 250 gig drive for backup and storage, a dvd-burner. The 150 gig drive is on a Promise Ultra133 TX2 card but exhibits no issues on reads or writes. I have cable connected to the internal tuner of my PVR-150 card and S-video from an Nvidia card (running Nvidea drivers) out to the TV. I don't know what else I can provide to help out but let me know and I'll get it. Thanks, -Rob -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] Hauppauge PVR-150 Vertical sync issue?
Ok I've been able to do some troubleshooting with some interesting results. I removed the one splitter being used, connected to the main cable coming into the house, isolated the grounds with no change in sync issues. I pulled the pvr-150 card out of the linux machine and put it into my window box, hooked it up to the original setup splitter and no ground isolation and the video is crystal clear with no sync issues. I can only come up with a few possible problems, but I am sure there are more. Could this be a driver issue on my linux box? Could a bad or failing PCI slot cause this problem? However the sync problem is not on every channel. I'm going to try moving the linux box across the house to see if there is a source of EMI near by, but since the windows box doesn't have this issue I assume this is a problem with the linux box. -Rob On Tue, Nov 24, 2009 at 6:43 PM, Andy Walls awa...@radix.net wrote: On Tue, 2009-11-24 at 13:05 -0500, Robert Longfield wrote: I have a PVR-150 card running on mythbuntu 9 and it appears that my card is suffering a vertical (and possibly a horizontal) sync issue. The video jumps around, shifts from side to side, up and down and when it shifts the video wraps. I'm including a link to a screen shot showing the vertical sync problem http://imagebin.ca/view/6fS-14Yi.html It looks like you have strong singal reflections in your cable due to impedance mismatches, a bad splitter, a bad cable or connector, etc. Please read: http://www.ivtvdriver.org/index.php/Howto:Improve_signal_quality and take steps to ensure you've got a good cabling plant in your home. Regards, Andy This is pretty tame to what happens sometimes. I haven't noticed this on all channels as we are mostly using this to record shows for my son. Here is my setup. Pentium 4 2 Ghz with a gig of ram. 40 gig OS drive, 150 gig drive for recording, 250 gig drive for backup and storage, a dvd-burner. The 150 gig drive is on a Promise Ultra133 TX2 card but exhibits no issues on reads or writes. I have cable connected to the internal tuner of my PVR-150 card and S-video from an Nvidia card (running Nvidea drivers) out to the TV. I don't know what else I can provide to help out but let me know and I'll get it. Thanks, -Rob ___ linux-dvb users mailing list For V4L/DVB development, please use instead linux-media@vger.kernel.org linux-...@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] Hauppauge PVR-150 Vertical sync issue?
Hopefully tonight I will get a chance to isolate the machine and hook the incoming cable directly to the mythbox. If it still happens I'll try isolating the ground. As far as the history of the machine. This only seemed to appear when I installed the new Mythbuntu, in previous versions and in windows (when the machine had windows installed on it) the card worked perfectly. I haven't tested the other inputs and I haven't noticed if it's a time issue (how long the machine is running). Thanks for the ideas thus far, -Rob On Tue, Nov 24, 2009 at 8:36 PM, Steven Toth st...@kernellabs.com wrote: On Tue, Nov 24, 2009 at 6:43 PM, Andy Walls awa...@radix.net wrote: On Tue, 2009-11-24 at 13:05 -0500, Robert Longfield wrote: I have a PVR-150 card running on mythbuntu 9 and it appears that my card is suffering a vertical (and possibly a horizontal) sync issue. The video jumps around, shifts from side to side, up and down and when it shifts the video wraps. I'm including a link to a screen shot showing the vertical sync problem http://imagebin.ca/view/6fS-14Yi.html It looks like you have strong singal reflections in your cable due to impedance mismatches, a bad splitter, a bad cable or connector, etc. Please read: http://www.ivtvdriver.org/index.php/Howto:Improve_signal_quality and take steps to ensure you've got a good cabling plant in your home. Was it previously working well then went bad? Does the problem occur when using the svideo/composite inputs? Does the problem only occur after the unit has been running for sometime? If the problem repro's under windows call Hauppauge tech support. -- Steven Toth - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] Hauppauge PVR-150 Vertical sync issue?
On Tue, 2009-11-24 at 13:05 -0500, Robert Longfield wrote: I have a PVR-150 card running on mythbuntu 9 and it appears that my card is suffering a vertical (and possibly a horizontal) sync issue. The video jumps around, shifts from side to side, up and down and when it shifts the video wraps. I'm including a link to a screen shot showing the vertical sync problem http://imagebin.ca/view/6fS-14Yi.html It looks like you have strong singal reflections in your cable due to impedance mismatches, a bad splitter, a bad cable or connector, etc. Please read: http://www.ivtvdriver.org/index.php/Howto:Improve_signal_quality and take steps to ensure you've got a good cabling plant in your home. Regards, Andy This is pretty tame to what happens sometimes. I haven't noticed this on all channels as we are mostly using this to record shows for my son. Here is my setup. Pentium 4 2 Ghz with a gig of ram. 40 gig OS drive, 150 gig drive for recording, 250 gig drive for backup and storage, a dvd-burner. The 150 gig drive is on a Promise Ultra133 TX2 card but exhibits no issues on reads or writes. I have cable connected to the internal tuner of my PVR-150 card and S-video from an Nvidia card (running Nvidea drivers) out to the TV. I don't know what else I can provide to help out but let me know and I'll get it. Thanks, -Rob ___ linux-dvb users mailing list For V4L/DVB development, please use instead linux-media@vger.kernel.org linux-...@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [linux-dvb] Hauppauge PVR-150 Vertical sync issue?
On Tue, Nov 24, 2009 at 6:43 PM, Andy Walls awa...@radix.net wrote: On Tue, 2009-11-24 at 13:05 -0500, Robert Longfield wrote: I have a PVR-150 card running on mythbuntu 9 and it appears that my card is suffering a vertical (and possibly a horizontal) sync issue. The video jumps around, shifts from side to side, up and down and when it shifts the video wraps. I'm including a link to a screen shot showing the vertical sync problem http://imagebin.ca/view/6fS-14Yi.html It looks like you have strong singal reflections in your cable due to impedance mismatches, a bad splitter, a bad cable or connector, etc. Please read: http://www.ivtvdriver.org/index.php/Howto:Improve_signal_quality and take steps to ensure you've got a good cabling plant in your home. Was it previously working well then went bad? Does the problem occur when using the svideo/composite inputs? Does the problem only occur after the unit has been running for sometime? If the problem repro's under windows call Hauppauge tech support. -- Steven Toth - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
