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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