[mythtv-users] Couldn't open [ V4L : /dev/video3 ] to probe its inputs.

[Simon Gornall]

Hi all,

I'm a bit stuck trying to get MythTV up and running for the first time, 
so if anyone wants to jump in, feel free :-))

I've got a Nehemiah EPIA box running RH9.0 with the 
linux-2.4.23-pre7-epia2 kernel on it. The VIA drivers for X11 are 
installed, and dmesg looks reasonable to me..

[snip earlier stuff]
ohci1394: $Rev: 1010 $ Ben Collins <bcollins at debian.org>
ohci1394_0: OHCI-1394 1.0 (PCI): IRQ=[5]  MMIO=[e2002000-e20027ff]  Max 
Packet=[2048]
ieee1394: Host added: ID:BUS[0-00:1023]  GUID[0040635000006066]
ehci_hcd 00:10.3: VIA Technologies, Inc. USB 2.0
ehci_hcd 00:10.3: irq 5, pci mem de90c000
usb.c: new USB bus registered, assigned bus number 4
ehci_hcd 00:10.3: USB 2.0 enabled, EHCI 1.00, driver 2003-Jun-19/2.4
hub.c: USB hub found
hub.c: 6 ports detected
ehci_hcd 00:10.3: remove state 3
usb.c: USB disconnect on device 00:10.3-0 address 1
usb.c: USB bus 4 deregistered
parport0: PC-style at 0x378 [PCSPP(,...)]
via_v4l: Device name:(VIA Technologies, Inc. VT8623 [Apollo CLE266] 
integrated CastleRock graphics), slot_name:01:00.0 (0x1106:0x3122) 
Revision:0
via_v4l: registered video device (0) corresponds to /dev/video0
via_v4l: Device name:(VIA Technologies, Inc. VT8623 [Apollo CLE266] 
integrated CastleRock graphics), slot_name:01:00.0 (0x1106:0x3122) 
Revision:0
via_v4l: registered video device (1) corresponds to /dev/video1
via_v4l: Device name:(VIA Technologies, Inc. VT8623 [Apollo CLE266] 
integrated CastleRock graphics), slot_name:01:00.0 (0x1106:0x3122) 
Revision:0
via_v4l: registered video device (2) corresponds to /dev/video2
[drm] AGP 0.99 Aperture @ 0xd0000000 128MB
[drm] Initialized via 1.1.0 20020814 on minor 0
viafb: VIA CLE266 framebuffer 0.8 initializing
viafb: framebuffer size = 32 Mb
viafb: mode=640  bpp=8  refresh=255  TVon=0  TVtype=1
Console: switching to colour frame buffer device 80x30
viafb: fb0: Via frame buffer device 640x480-8bpp
i2c-core.o: driver i2c TV tuner driver registered.
i2c-core.o: driver i2c msp3400 driver registered.
i2c-core.o: driver saa7115 registered.
ivtv: Found an iTVC15 based chip
i2c-dev.o: Registered 'ivtv i2c driver #0' as minor 0
tuner: chip found @ 0xc2
tuner(bttv): type forced to 2 (Philips NTSC (FI1236,FM1236 and 
compatibles)) [insmod]
i2c-core.o: client [Philips NTSC (FI1236,FM1236 and] registered to 
adapter [ivtv i2c driver #0](pos. 0).
msp34xx: init: chip=MSP3418W-A2, has NICAM support
msp3410: daemon started
i2c-core.o: client [MSP3418W-A2] registered to adapter [ivtv i2c driver 
#0](pos. 1).
saa7114.c: starting probe for adapter ivtv i2c driver #0 (0x10005)
saa7114.c: detecting saa7114 client on address 0x42
saa7115.c: writing init values
status: (1E) 0x48, (1F) 0xc0
i2c-core.o: client [saa7115[0]] registered to adapter [ivtv i2c driver 
#0](pos. 2).
i2c-core.o: adapter ivtv i2c driver #0 registered as adapter 0.
ivtv: Encoder revision: 0x02040011
ivtv: Decoder revision: 0x02020023
ivtv: Device or minor 0 not accepted
ivtv: Device or minor 1 not accepted
ivtv: Device or minor 2 not accepted
ivtv: Registered v4l2 device, minor 3
ivtv: Registered v4l2 device, minor 32
ivtv: Registered v4l2 device, minor 224
via_v4l: Revision:3
ivtv: ivtv-api.c: unknown ioctl 0x803c7601
via_v4l: Revision:3
ivtv: ivtv-api.c: unknown ioctl 0x803c7601
saa7115[0]: decoder set norm PAL
saa7115[0] set audio: 0x02
saa7115[0]: decoder set size
Setting full PAL width
Setting full PAL height
saa7115[0]: decoder disable output
saa7115[0]: decoder enable output

I start up X, and happily log in as 'mythtv', cd to the 'setup' 
directory and run './setup'. This takes me through steps 1,2 & 3, and it 
all seems to be fine until I get to '4', where I get a blank screen, and 
the message (as in the subject) on the commandline.

What's odd is that I can test_ioctl -a -d /dev/video3 fine, and when I'm 
choosing my video card, it provides the correct inputs available for 
/dev/video3 (4 composites, a tuner, and 3 or 4 svideo's), so it must be 
able to read them at some stage. I've tried running 'setup' as root as 
well, which didn't make any difference, and I've tried setting the 
permissions to 666 on /dev/video*, again that didn't make any difference.

I'm in the process of checking out and making the very latest version, 
but since I'll probably get a reply from the mailing list before the 
machine finishes compiling (grin I thought I'd push this out to anyone 
in-the-know...

ATB
   Simon.

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