[mythtv-users] PVR-250, no signal
Kevin D. Snodgrass
kds.mythtv at cox.net
Tue May 4 22:09:05 EDT 2004
Following Jarod's howto...
Everything appears fine, but I get no capture with cat
/dev/video0 > test1.mpg. I tried /usr/bin/test_ioctl -p
[012345678], and only -p 4 gives many anything but a totally
blank picture. With -p 4 I get static. Same thing when
done as user mythtv or root. Trying to capture from coax on
a regular US cable connection.
Also, when I run ptune.pl (as root) I get a segfault.
#/usr/lib/ivtv/ptune.pl --channel 8
Ch.8: 181250 2900
Segmentation fault
#
Here is the lspci -v, dmesg anc /proc/interrupts output
(edited to remove lots of extraneous stuff). Notice this is
a CX23416 chip.
#lspci -v
01:0a.0 Multimedia video controller: Internext Compression
Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01)
Subsystem: Hauppauge computer works Inc. WinTV PVR 250
Flags: bus master, medium devsel, latency 64, IRQ 5
Memory at d4000000 (32-bit, prefetchable) [size=64M]
Capabilities: [44] Power Management version 2
#dmesg
Linux version 2.4.22-1.2179.nptl_47.rhfc1.at
(bachbuilder at heretic.physik.fu-berlin.de) (gcc version 3.2.3
20030422 (Red Hat Linux 3.2.3-6)) #1 Sat Apr 17 09:22:02 EDT
2004
...
i2c-core.o: i2c core module version 2.8.4 (20040207)
i2c-core.o: i2c core module version 2.8.4 (20040207)
i2c-core.o: i2c core module version 2.8.4 (20040207)
Linux video capture interface: v1.00
ivtv: version 0.1.9 (release) loading
ivtv: SGarray_size = 320, DSGarray_size = 16
ivtv: Found an iTVC16 based chip
ivtv: Unreasonably low latency timer, setting to 64 (was 32)
tuner: chip found @ 0xc2
tuner(bttv): type forced to 2 (Philips NTSC (FI1236,FM1236
and compatibles)) [insmod]
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
msp34xx: init: chip=MSP3448W-A2, has NICAM support
msp3410: daemon started
ivtv: Encoder revision: 0x02040011
ivtv: Registered v4l2 device, minor 0
ivtv: Registered v4l2 device, minor 32
ivtv: Registered v4l2 device, minor 224
ivtv: loaded
#cat /proc/interrupts
CPU0
0: 1317878 XT-PIC timer
1: 9790 XT-PIC keyboard
2: 0 XT-PIC cascade
3: 1676 XT-PIC usb-ohci, NVidia nForce2
5: 3031 XT-PIC usb-ohci, ivtv: iTVC15/16
mpg2 encoder chip
8: 1 XT-PIC rtc
10: 956802 XT-PIC ehci_hcd, nvidia
11: 54012 XT-PIC eth0
12: 7190 XT-PIC PS/2 Mouse
14: 58605 XT-PIC ide0
15: 222372 XT-PIC ide1
NMI: 0
ERR: 0
Could there be a problem with ivtv and usb-ohci using the
same IRQ? How can I force a PVR-250 to use a different IRQ?
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