> > Sorry to ask this - I thought this would have been dealt with heaps > > but I can't fnd anything that says what to put in your modprobe.conf > > when you add a 2nd tuner card. > > Modprobe lods the kernel driver. Once it's loaded for one card > it can be used by other cards. > > > #----bttv----# > > alias char-major-81 videodev > > alias char-major-81-0 bttv > > alias char-major-81-1 bttv > > This says that if either 81,0 or 81,1 is accessed, the bttv > module nneds to be loaded if it wasn't already. > > > options bttv card=37,55 radio=0 tuner=28,0 chroma_agc=1 combfilter=2 > > You have AGC and the comb filter. Outstanding, however, this > leads me to suspect that you found this line somewhere. Did > you copy the whole line as is or did you add the card and tuners > specifically for your cards. Most card should auto detect so > what happens if you use: > > options bttv chroma_agc=1 combfilter=2
How dare you sir! :) I didn't copy the whole line - I researched what card type and tuner number I needed for my card and diligently created the line that way. However I didn't know you could take the easy option and not specify them at all so I will try it without specifying them and see how I go. > > Problem is that the 2nd tuner card isn't getting detected. I should > > see references to bttv1 in dmesg but it only has bttv0. > > Then the next thing to check upstream is if the hardware is > being found. Try "lspci -v" to see if it really found two > different cards on the PCI bus. > > > Can anyone help, or perhaps someone with bt8x8 cards can post their's? > > Kinda already have but here's what I have on a working dual > tuner system: > > # BTTV tuner > alias char-major-81 videodev > alias char-major-81-0 bttv > alias char-major-81-1 bttv > options bttv chroma_agc=1 combfilter=2 > > Just that easy. Unless you are using bogus tuner and card numbers, > this file probably isn't your problem. > > > Is there anything else I need to do? BTW /dev/video1 exists: > > crw------- 1 mythtv root 81, 0 Feb 24 2004 /dev/video0 > > crw------- 1 mythtv root 81, 1 Feb 24 2004 /dev/video1 > > crw------- 1 mythtv root 81, 2 Feb 24 2004 /dev/video2 > > crw------- 1 mythtv root 81, 3 Feb 24 2004 /dev/video3 > > One thing to note is that by default, these are doled out first > come first serve. The lower numbered PCI slot will get video0 . > If you put the new card in a slot ahead of the existing card, > it may be the new card that is the one being detected and your > tuner and card parameters may be reversed. Again look at lspci -v > and /var/log/syslog to see which card is being detected where. I think this could be the problem. The tuner which used to be on /dev/video0 is now on /dev/video1 and the new one is on /dev/video0. I wasn't expecting that to happen - I assumed the newly inserted card would be /dev/video1. Thanks very much for you help, Phill
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