--- "Mark K. Kim" <[EMAIL PROTECTED]> wrote: > On Sun, 11 Jul 2004, Hans W. Uhlig wrote: > > > I purchased not long ago a new machine to function > as > > a mythtivo and finished assembling it this > weekend, > > sadly when I dropped in the three bt878a capture > cards > > the unit just decides to spit out a > greenscreen/static > > across the bus. If I rip out any 2 of the cards > > leaving just one it works fine. > > What about leaving two cards in? Does that do > anything? Try to place the > two cards in adjacent PCI slots, rather than two PCI > slots that are apart > -- that minimizes the IRQ conflicts. IRQ conflicts > are generally not a > problem for PCI devices, but it *could* be a problem > if you're using two > identical devices. > > The other issue is the IO ports. All devices have a > limited IO ports that > they can use, and if all the available IO port > ranges are used up, then > you'll end up with a conflict. It's entirely > possible the device was > designed to use only one range of IO ports (in which > case you can't > install multiples of that card in one computer.) To > check for this, > install two of the cards, then try probing the PCI > devices using `lspci > -vv`: > > # lspci -vv > 0000:02:08.0 Multimedia video controller: > Brooktree Corporation Bt8... > ... > Region 0: Memory at f46fe000 (32-bit, > prefetchable) [size=4K] > ... > > The above is the listing for my BT878 capture card. > Make sure none of the > "Region N" listed are same as other devices. If > some of them are same, > then you got a conflict, or the card wasn't designed > to be installed in > multiples in a single computer. >
Logs from dmesg and lspci at bottom of email > If installing two cards works, and if the IRQ and > the IO ranges conflict, > then try installing the third card. Then work out > the IRQ and the IO at > that time, for three card scenario. Take it one > step at a time -- two > cards first, then the third. > > [snip] > > Also one other thing to note is while running on > one > > card only it spits out these messages periodically > > > > bttv0: timeout: drop=64 irq=97874/97876, > > risc=1490e07c, bits: HSYNC OFLOW FDSR > > bttv0: reset, reinitialize > > I've never seen that on my BT878... > > BTW, what program are you using to view the TV > signals? What commands? > Make sure you're using /dev/video0 for the first > video device, /dev/video1 > for the second, and /dev/video2 for the third. (I > use `xawtv`, and I type > `xawtv -c /dev/video1` for the second video.) > mplayer -tv driver=v4l2:device=/dev/video0 tv:// Ive also added height/width specifiers, normid=1(NTSC), input=0(TV) and a few other defined specs > Also, make sure you're not using the Xv extension on > the second and third > instances of the TV signal viewing program, because > only one application > is allowed to use Xv at any given time. Most likely > you'll have to > explicitely tell the program not to use Xv extension > (I use `xawtv`, and I > type `xawtv -noxv` to turn off the Xv extension. To > combine with the > above command, you'd type `xawtv -noxv -c > /dev/video1` to view the second > TV signal, `xawtv -noxv -c /dev/video2` for the > third TV signal.) > Ive never gotten them to run simultainiously at all If I plug both in I get green on both if I kill one prog and run the second. > -Mark > > > -- > Mark K. Kim > AIM: markus kimius > Homepage: http://www.cbreak.org/ > Xanga: http://www.xanga.com/vindaci > Friendster: > http://www.friendster.com/user.php?uid=13046 > PGP key fingerprint: 7324 BACA 53AD E504 A76E 5167 > 6822 94F0 F298 5DCE > PGP key available on the homepage > _______________________________________________ > vox-tech mailing list > [EMAIL PROTECTED] > http://lists.lugod.org/mailman/listinfo/vox-tech > ----------------- Dmesg ------------------- Linux video capture interface: v1.00 bttv: driver version 0.9.14 loaded bttv: using 8 buffers with 2080k (520 pages) each for capture bttv: Bt8xx card found (0). bttv0: Bt878 (rev 17) at 0000:01:07.0, irq: 16, latency: 32, mmio: 0xde000000 bttv0: using: *** UNKNOWN/GENERIC *** [card=0,autodetected] bttv0: gpio: en=00000000, out=00000000 in=003fffff [init] bttv: readee error bttv0: using tuner=2 bttv0: i2c: checking for MSP34xx @ 0x80... not found bttv0: i2c: checking for TDA9875 @ 0xb0... not found bttv0: i2c: checking for TDA7432 @ 0x8a... not found tuner: chip found at addr 0xc0 i2c-bus bt878 #0 [sw] tuner: type set to 2 (Philips NTSC (FI1236,FM1236 and compatibles)) by bt878 #0 [sw] bttv0: registered device video0 bttv0: registered device vbi0 bttv0: registered device radio0 bttv: Bt8xx card found (1). bttv1: Bt878 (rev 17) at 0000:01:08.0, irq: 17, latency: 32, mmio: 0xde002000 bttv1: using: *** UNKNOWN/GENERIC *** [card=0,autodetected] bttv1: gpio: en=00000000, out=00000000 in=003fffff [init] tuner: chip found at addr 0xc0 i2c-bus bt878 #1 [sw] bttv: readee error bttv1: using tuner=2 tuner: type set to 2 (Philips NTSC (FI1236,FM1236 and compatibles)) by bt878 #1 [sw] bttv1: i2c: checking for MSP34xx @ 0x80... not found bttv1: i2c: checking for TDA9875 @ 0xb0... not found bttv1: i2c: checking for TDA7432 @ 0x8a... not found bttv1: registered device video1 bttv1: registered device vbi1 bttv1: registered device radio1 --------------------- End Dmesg -------------------- ===================== lspci -v ===================== 0000:01:07.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 (4000ns min, 10000ns max) Interrupt: pin A routed to IRQ 16 Region 0: Memory at de000000 (32-bit, prefetchable) [size=4K] Capabilities: [44] Vital Product Data Capabilities: [4c] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 0000:01:07.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 (1000ns min, 63750ns max) Interrupt: pin A routed to IRQ 16 Region 0: Memory at de001000 (32-bit, prefetchable) [size=4K] Capabilities: [44] Vital Product Data Capabilities: [4c] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 0000:01:08.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 (4000ns min, 10000ns max) Interrupt: pin A routed to IRQ 17 Region 0: Memory at de002000 (32-bit, prefetchable) [size=4K] Capabilities: [44] Vital Product Data Capabilities: [4c] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 0000:01:08.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 (1000ns min, 63750ns max) Interrupt: pin A routed to IRQ 17 Region 0: Memory at de003000 (32-bit, prefetchable) [size=4K] Capabilities: [44] Vital Product Data Capabilities: [4c] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- =================== end lspci -v =================== ===== Hans W. Uhlig [EMAIL PROTECTED] http://purple.worldforge.org/~huhlig "Life is a Long and lonely road, Bring a friend" GPG Fingerprint : 2470 6619 6156 9A0E 577E E7B1 D2BB C9BA 07C0 C7BF GPG Public key : http://purple.worldforge.org/~huhlig/deathguard.asc __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! http://promotions.yahoo.com/new_mail _______________________________________________ vox-tech mailing list [EMAIL PROTECTED] http://lists.lugod.org/mailman/listinfo/vox-tech
