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cynric
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Joined: 08 Oct 2004
Posts: 439
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 Posted: Mon Feb 13, 2006 3:41 am Post subject: [Resolved] MythTV: cat /dev/video0 causes lockup |
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I've been through all the threads containing "cat video0 ptune" and haven't seen an answer or, for that matter, anyone else with a similiar problem. I've looked at the comcast.net/~alf_park howto, everything on gentoo-wiki about "mythtv" and "pvr 150".
In the kernel, instead of using modules for the i2c and v4l stuff, I just built them in. `lsmod` only has ivtv. Firing up X kicks in alsa. Here's some relevant kernel options:
| Code: | CONFIG_HOTPLUG=y
# I2C support
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
# I2C Algorithms
CONFIG_I2C_ALGOBIT=y
CONFIG_I2C_VIAPRO=y
CONFIG_ACPI_VIDEO=y
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_BT848=y
CONFIG_VIDEO_AUDIO_DECODER=y
CONFIG_VIDEO_DECODER=y
CONFIG_VIDEO_TUNER=y
CONFIG_VIDEO_BUF=y
CONFIG_VIDEO_BTCX=y
CONFIG_VIDEO_IR=y
CONFIG_VIDEO_TVEEPROM=y |
The video card is a WinTV-PVR 150 (model: HAU 1045)
| Code: | lspci |grep video
00:0a.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01) |
emerge info
| Code: | Portage 2.0.54 (default-linux/x86/2005.1, gcc-3.3.5-20050130, glibc-2.3.5-r2, 2.6.15-gentoo-r1 i686)
=================================================================
System uname: 2.6.15-gentoo-r1 i686 AMD Athlon(tm) XP 1700+
Gentoo Base System version 1.6.14
dev-lang/python: 2.3.5-r2, 2.4.2
sys-apps/sandbox: 1.2.11
sys-devel/autoconf: 2.13, 2.59-r6
sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1
sys-devel/binutils: 2.16.1
sys-devel/libtool: 1.5.22
virtual/os-headers: 2.6.11-r2
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=athlon-xp -O2 -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-march=athlon-xp -O2 -pipe"
<snip> |
Relevant packages:
| Code: | Calculating dependencies ...done!
[ebuild R ] media-tv/ivtv-0.4.2-r1
[ebuild R ] media-tv/mythtv-0.18.1-r1
[ebuild R ] dev-db/mysql-4.1.14
[ebuild R ] media-video/mplayer-1.0_pre7-r1
[ebuild R ] media-tv/ivtv-ptune-0.2.0_rc3
[ebuild R ] x11-base/xorg-x11-6.8.2-r6 |
cat /etc/modules.d/ivtv
| Code: | alias char-major-81 videodev
alias char-major-81-0 ivtv
alias char-major-81-1 ivtv
options ivtv ivtv_std=1 tuner=57
#alias char-major-61 lirc_i2c
#add above ivtv lirc_dev lirc_i2c |
dmesg |grep ivtv
| Code: | ivtv: ==================== START INIT IVTV ====================
ivtv: version 0.4.2 (tagged release) loading
ivtv: Linux version: 2.6.15-gentoo-r1 preempt K7 gcc-3.3
ivtv: In case of problems please include the debug info between
ivtv: the START INIT IVTV and END INIT IVTV lines, along with
ivtv: any module options, when mailing the ivtv-users mailinglist.
ivtv0: Autodetected WinTV PVR 150 card (cx23416 based)
ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
wm8775 1-001b: chip found @ 0x36 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=wm8775, addr=1b]
tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=(tuner unset), addr=61]
ivtv0: i2c attach to card #0 ok [client=tveeprom, addr=50]
cx25840 1-0044: cx25841-23 found @ 0x88 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=cx25840, addr=44]
ivtv0: loaded v4l-cx2341x-enc.fw firmware (262144 bytes)
ivtv0: Encoder revision: 0x02050032
ivtv0: Allocate DMA encoder MPEG stream: 128 x 32768 buffers (4096KB total)
ivtv0: Allocate DMA encoder YUV stream: 194 x 10800 buffers (2048KB total)
ivtv0: Allocate DMA encoder VBI stream: 120 x 17472 buffers (2048KB total)
ivtv0: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB total)
ivtv0: Initialized WinTV PVR 150, card #0
ivtv: ==================== END INIT IVTV ==================== |
dmesg |grep tuner
| Code: | tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=(tuner unset), addr=61]
tveeprom 1-0050: tuner model is TCL 2002N 5H (idx 99, type 50)
tuner 1-0061: type set to 57 (Philips FQ1236A MK4) |
Everything seems to be in working order except that any access of /dev/video0 causes the system to hardlock. Any ideas would be greatly appreciated. If anyone needs more info, I can provide it.
Last edited by cynric on Fri Feb 24, 2006 2:40 am; edited 1 time in total |
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cynric
Guru
Joined: 08 Oct 2004
Posts: 439
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| Posted: Mon Feb 13, 2006 10:49 pm Post subject: |
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Still haven't gotten anywhere with this. I should have mentioned whether or not I used ptune and ivtvctl. Here's the two examples I've done. Of course, I've tried various other settings, but have pretty much stuck to the layout below.
| Code: | #ptune
ptune.pl --input /dev/video0 -c 2
ptune.pl --input /dev/video0 -c 2 -f ntsc-cable-hrc
#ivtvctl
ivtvctl -u 0x3000 -p 4 -f width=720,height=480 -v input=3,output=1 |
I've also tried `cat`ing before doing any tuning. I do apparently have one IRQ conflict:
| Code: | dmesg |grep -i irq |grep -i disabl
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled |
Another bit of info from `ivtv -a`:
| Code: | ivtvctl -a
ioctl IVTV_IOC_G_CODEC ok
Codec parameters
aspect : 2
audio : 0x00e9
bframes : 3
bitrate_mode: 0
bitrate : 8000000
bitrate_peak: 9600000
dnr_mode : 0
dnr_spatial : 0
dnr_temporal: 8
dnr_type : 0
framerate : 0
framespergop: 15
gop_closure : 1
pulldown : 0
stream_type : 14
ioctl VIDIOC_G_FMT ok
Type : Video Capture
Width : 720
Height : 480
ioctl VIDIOC_QUERYCAP ok
Driver name : ivtv
Card type : WinTV PVR 150
Bus info : 0000:00:0a.0
Driver version: 1026
Capabilities : 0x01030011
ioctl: VIDIOC_ENUMINPUT
Input : 0
Name : Tuner
Type : 0x00000001
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x0000000000003000 ( NTSC )
Status : 0
Input : 1
Name : Composite 0
Type : 0x00000002
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x00000000007F7FFF ( PAL NTSC SECAM )
Status : 0
Input : 2
Name : Composite 1
Type : 0x00000002
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x00000000007F7FFF ( PAL NTSC SECAM )
Status : 0
Input : 3
Name : S-Video 0
Type : 0x00000002
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x00000000007F7FFF ( PAL NTSC SECAM )
Status : 0
Input : 4
Name : S-Video 1
Type : 0x00000002
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x00000000007F7FFF ( PAL NTSC SECAM )
Status : 0
ioctl VIDIOC_G_INPUT ok
Video input = 0
ioctl: VIDIOC_ENUMOUTPUT
ioctl VIDIOC_G_OUTPUT failed: Invalid argument
ioctl: VIDIOC_ENUMAUDIO
Input : 0
Name : Tuner Audio In
Input : 1
Name : Audio Line 1
Input : 2
Name : Audio Line 2
Input : 3
Name : Audio Line 3
Input : 4
Name : Audio Line 4
ioctl VIDIOC_G_AUDIO ok
Audio input = 0: Tuner Audio In
ioctl VIDIOC_G_FREQUENCY ok
Frequency = 1236
ioctl: VIDIOC_ENUMSTD
index : 0
ID : 0x0000000000003000
Name : NTSC
Frame period: 1001/30000
Frame lines : 525
index : 1
ID : 0x00000000000000FF
Name : PAL
Frame period: 1/25
Frame lines : 625
index : 2
ID : 0x00000000007F0000
Name : SECAM
Frame period: 1/25
Frame lines : 625
ioctl VIDIOC_G_STD ok
Video standard = 0x00003000
ioctl: VIDIOC_QUERYCTRL
Brightness = 383
Contrast = 63
Saturation = 63
Hue = 0
Volume = 60928
Mute = 0 |
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cynric
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Joined: 08 Oct 2004
Posts: 439
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| Posted: Fri Feb 24, 2006 2:39 am Post subject: |
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This particular tid-bit finally sunk in a few days ago and I thought I'd go ahead and post the problem. The motherboard on this machine is a SY-K7V Dragon Plus! which is apparently based off the VIA 266 chipset. As per the IVTV Troubleshooting guide: | Quote: | | If you have a Via motherboard, particularly with the KT266-400 chipset, see Via motherboard problems |
It's been said that BIOS upgrades might work, but I've yet to give it a whirl as I don't have the time to pick up the pieces if it comes to that. If anyone is interested, I can make sure to post back otherwise I'll probably leave this thread as is. |
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