On Mon, Jul 20, 2009 at 1:39 AM, Ravi A<[email protected]> wrote: >>>> >>> >>> Hi Andy, >>> >>> You were right on time for me to test it as soon as I woke up :) >>> This version seems much better. The skip/jump has gone away! >> >> Good to hear. >> >> >>> >>> However I notice some video/audio dropouts after a few seconds of >>> playing, and the "too many video packets in buffer" messages too. The good >>> news is, the 82a264ea2784 version is also showing these dropouts - I am >>> certain it was smooth before, so a bit puzzled as to why I am seeing these >>> dropouts now! >>> >> >> It's likely a system level issue. Is there any device sharing the same >> PCI interrupt line as the CX23416 with a linux driver attached to it. >> >> $ cat /proc/interrupts >> >> If ivtv is sharing an interrupt with a linux device driver that doesn't >> always respond promptly, that would be a source of dropped buffers. >> >> That's just a first guess. There could be other factors. >> >> >> >> >>> >>> But anyway the latest PLL VCO change version seems same as earlier >>> versions now. I have not compared with 32KHz audio sampling yet though. >>> >> >> OK. >> >> >> >>> >>> Do let me know if there is anything I can check to eliminate or isolate >>> the driver settings as the cause for the audio/video dropouts. >>> >> >> 1. Blacklist/unload any module that's sharing the PCI interrupt with the >> CX23416 >> >> or >> >> 2. Move the CX23416 card to another slot so that it gets a different >> interrupt line. >> >> >> >> >> >>> >>> The machine itself and components are fast and I am able to play 1080p >>> video from local disks smoothly. >>> >>> It might help if there can be another independent testing on this >>> version. >>> >> >> Yes, that was my plan for today. >> >> I also wanted to look at the WM8379 configuration today. >> >> Unfortunately my wife just informed my that we have a non-trivial amount >> of water leaking in the laundry room, so I'll likely be spending the day >> fixing whatever is broken. >> Regards, >> Andy >> >> >>> >>> Regards >>> Ravi >>> >> >> >> > > Hi Andy, > > The card was sharing an IRQ with a USB controller. I disabled USB from BIOS > and ensured the card gets dedicated IRQ. But the problem still persists. It > is also pretty consistent now, despite several reboots and tweaked settings > I could not get rid of it. I am inclined to think the clock settings or > whatever else in the card may not be fully alright yet. Your testing should > be able to confirm - but ofcourse we will wait for you to patch the laundry > room pipes before patching any more code! > > Also I checked with 32KHz audio sampling frequency - there was some strong > weird tone shifting. > > Regards > Ravi > > >
Hi Andy, I did some more testing comparing the patches. The dropouts appear to be because of the VCO related patches. The versions before the VCO center frequency patch do not show this issue. I was mislead earlier (into thinking all the versions had the dropouts) as I was just doing an unload and load to move across versions - this does not seem to be clean, the register writes may not be completely reset. If I do a cold boot in between, then with pre-VCO version I am able to see that there are no dropouts. I also checked the patches you submitted to the staging repository and there seem to be no dropouts with this too. I will continue to do more testing to double-check. Let me know if you think the above is reasonable. Regards Ravi _______________________________________________ ivtv-devel mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-devel
