Hi Andy, Doing a spot of renovating around the house and had to power my server down in case I tripped the wrong breaker. To complicate things, I had done the kernel upgrade from 2.6.38-10-generic to 2.6.38-11-generic but had not rebooted. When done, I powered the machine up and did my customary stopping of mythtv-backend, remove cx18_alsa and cx18 and reloading cx18 but one of my tuners is still red screen.
I pulled the plug completely on the machine in case a complete power down was needed but with no luck. And I have reverted to the 2.6.38-10-generic kernel that was working. I had been operating since Jun 7 (no reboots :) with no problems. What's the status of the red screen thing. Is there some workaround? Fix? I had read that there were fixes that were supposed to be included in newer versions of the kernel but no luck here. Thanks for any help! Eric On Tue, Jun 7, 2011 at 7:07 PM, Eric Morgan <[email protected]> wrote: > On Tue, Jun 7, 2011 at 3:38 PM, Andy Walls <[email protected]>wrote: > >> On Tue, 2011-06-07 at 13:50 -0700, Eric Morgan wrote: >> > I'll try to unloading and reloading drivers tonight. I'll figure out a >> > better way to test the cable signal too. >> >> As something that may be worthwhile, you might also wish to try >> >> 1. removing all but one capture card from your system (PVR-150 or >> HVR-1600 doesn't matter at the moment), and see how well that one card >> performs. Make sure it is away from any disk controller or video >> graphics cards. (Trying to reduce EMI inside the PC case.) >> >> You might also want to disconnect the coaxial cables and just use a >> composite or SVideo source for the test. (Trying to eliminate any >> ground loops.) >> >> I'm just guessing that the PVR-150 problems you described may have been >> caused by EMI or a grounding problem. >> >> >> >> > Any idea what's up with a green screen? >> >> Not really. Since the CX23418 uses YUV (YCrCb) as an intermediate >> format before MPEG encoding, a memory region filled with 00 00 00 as YUV >> values would end up as dark green (I think). >> >> >> The red screen is definitely a bad symptom though. >> >> >> > When I was originally cat'ing directly from video1 it was black but >> > all the myth recordings are green. I can try to capture with cat again >> > to see if it's black if it'll help... >> >> Nope. Don't bother. >> >> Regards, >> Andy >> >> > Ok! I played with the system some tonight and took some notes. > > o machine was booted with blacklisted cx18 a day or so ago so shut it down. > o removed the card with the red screen and left the green screen card in > its original slot > o booted, still with cx18 blacklisted. > o loaded cx18 module and captured from the tuner -> BLACK SCREEN > o switched to s-video -> GREEN SCREEN > o removed cx18_alsa and cx18 and reloaded -> Same results as 3 and 4. > o removed this card and put it in the other slot and booted still with cx18 > blacklisted > o s-video -> LIGHT GREEN SCREEN > o tuner -> RED SCREEN! > o removed the cx18 modules and reloaded > o s-video -> GREY SCREEN > o tuner -> PICTURE! (Doogie Houser <cringe>) > o switch back to s-video -> BLACK SCREEN > o put card back in other slot and booted blacklisted cx18 and modprobed the > driver > o tuner -> PICTURE! > o s-video -> BLACK SCREEN > o removed coax (straight from cable co.) from card to hook up cable box > coax to card and screen goes BLACK > o Thought to check the input on the cable box. > o Actually plugged cable TV coax into cable box so it would have a signal > to supply it's s-video out > o s-video -> PICTURE! > > o reinstalled the 2nd card (so config is the same) > o booted blacklisted still and modprobed > o video0 -> PICTURE! > o video1 tuner -> PINK SCREEN (correctly hooked to cable box) > o video1 s-video -> WHITE SCREEN (correctly hooked to cable box) > o modprobe removed cx18's and reloaded and... > o PICTURE! both cards, tuner and s-video. > > So, it seems I can get it working with intervention after rebooting. Are > people having trouble with the red screen appearing intermittently without > being triggered by reboot? I assume this is the big issue you all are > working on with this driver/card combo? > > Thanks a ton Andy. I really do appreciate the hard work you all do! > > Eric >
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