[ivtv-users] green video from cat /dev/video?
Lars Hanisch
dvb at cinnamon-sage.de
Sat Mar 13 14:19:56 CET 2010
Hi,
Am 13.03.2010 13:48, schrieb James Pifer:
> I was having problems with some of my mythtv recordings having bad
> video. The leading contender for the issue is too much stuff going on
> for one hard drive. So I added a new smaller drive for the OS and also
> updated to the OS to CentOS 5.4. I then installed mythtv and ivtv using
> yum.
>
> I have a PVR150/250/350.
>
> If I try to capture video by cat /dev/video0 (or 1 or 2) all I get is a
> green picture. I've gone through the troubleshooting and did not come up
> with a fix.
>
> modprobe.conf has nothing in it, but ivtv is loaded if I do an lsmod.
>
> Anyone have any suggestions?
Have you tuned to a channel or set to an external input before the cat? I think you can use ivtv-tune or v4l2-ctl for
that.
Regards,
Lars.
>
> Thanks,
> James
>
>
>
> # rpm -qa | grep ivtv
> ivtv-0.10.6-132.el5
> ivtv-kmdl-2.6.18-164.11.1.el5-0.10.6-132.el5
> ivtv-firmware-20080701-18
> perl-Video-ivtv-0.13-8.0.el5
> # uname -a
> Linux mythtv.obrien-pifer.com 2.6.18-164.11.1.el5 #1 SMP Wed Jan 20 07:39:04 EST 2010 i686 i686 i386 GNU/Linux
>
>
>
> # lsmod
> Module Size Used by
> iptable_filter 7105 0
> ip_tables 17029 1 iptable_filter
> x_tables 17349 1 ip_tables
> nfsd 204337 17
> exportfs 9665 1 nfsd
> nfs_acl 7617 1 nfsd
> auth_rpcgss 43105 1 nfsd
> ipv6 267617 38
> xfrm_nalgo 13381 1 ipv6
> crypto_api 12609 1 xfrm_nalgo
> autofs4 29253 3
> hidp 23105 2
> rfcomm 42457 0
> l2cap 29505 10 hidp,rfcomm
> bluetooth 53925 5 hidp,rfcomm,l2cap
> lockd 63081 2 nfsd
> sunrpc 145405 14 nfsd,nfs_acl,auth_rpcgss,lockd
> jfs 159596 1
> dm_mirror 24393 0
> dm_multipath 24909 0
> scsi_dh 11713 1 dm_multipath
> video 21192 0
> hwmon 7365 0
> backlight 10049 1 video
> sbs 18533 0
> i2c_ec 9025 1 sbs
> button 10705 0
> battery 13637 0
> asus_acpi 19289 0
> ac 9157 0
> lp 15848 0
> wm8775 9805 0
> cx25840 26193 0
> cfi_probe 10817 0
> gen_probe 7617 1 cfi_probe
> msp3400 31073 0
> saa7127 14933 0
> saa7115 17489 0
> tuner 58229 0
> scb2_flash 8525 0
> mtdcore 9989 1 scb2_flash
> ivtv 122896 0
> parport_pc 29157 1
> chipreg 7361 2 cfi_probe,scb2_flash
> floppy 57125 0
> e1000 115925 0
> ide_cd 40161 0
> i2c_piix4 13133 0
> parport 37513 2 lp,parport_pc
> i2c_algo_bit 12489 1 ivtv
> pcspkr 7105 0
> cx2341x 14277 1 ivtv
> tveeprom 17873 1 ivtv
> cdrom 36577 1 ide_cd
> i2c_core 23745 11 i2c_ec,wm8775,cx25840,msp3400,saa7127,saa7115,tuner,ivtv,i2c_piix4,i2c_algo_bit,tveeprom
> serio_raw 10693 0
> videodev 25793 1 ivtv
> v4l1_compat 16069 2 ivtv,videodev
> v4l2_common 24385 7 cx25840,msp3400,saa7115,tuner,ivtv,cx2341x,videodev
> dm_raid45 67145 0
> dm_message 6977 1 dm_raid45
> dm_region_hash 15681 1 dm_raid45
> dm_log 14657 3 dm_mirror,dm_raid45,dm_region_hash
> dm_mod 63225 4 dm_mirror,dm_multipath,dm_raid45,dm_log
> dm_mem_cache 9537 1 dm_raid45
> mptspi 23625 0
> mptscsih 37825 1 mptspi
> scsi_transport_spi 26305 1 mptspi
> sd_mod 25281 0
> scsi_mod 141717 5 scsi_dh,mptspi,mptscsih,scsi_transport_spi,sd_mod
> mptbase 80517 2 mptspi,mptscsih
> ext3 125001 3
> jbd 57065 1 ext3
> uhci_hcd 25421 0
> ohci_hcd 24553 0
> ehci_hcd 33869 0
>
> /var/log/messages:
> Mar 12 20:07:35 mythtv kernel: ivtv: ==================== START INIT IVTV ====================
> Mar 12 20:07:35 mythtv kernel: ivtv: version 0.10.6 (tagged release) loading
> Mar 12 20:07:35 mythtv kernel: ivtv: Linux version: 2.6.18-164.11.1.el5 SMP mod_unload 686 REGPARM 4KSTACKS gcc-4.1
> Mar 12 20:07:35 mythtv kernel: ivtv: In case of problems please include the debug info between
> Mar 12 20:07:35 mythtv kernel: ivtv: the START INIT IVTV and END INIT IVTV lines, along with
> Mar 12 20:07:35 mythtv kernel: ivtv: any module options, when mailing the ivtv-users mailinglist.
> Mar 12 20:07:35 mythtv kernel: ivtv0: Autodetected Hauppauge card (cx23415 based)
> Mar 12 20:07:35 mythtv kernel: ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
> Mar 12 20:07:35 mythtv kernel: ivtv0: loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
> Mar 12 20:07:35 mythtv kernel: ivtv0: loaded v4l-cx2341x-dec.fw firmware (262144 bytes)
> Mar 12 20:07:35 mythtv kernel: ivtv0: Encoder revision: 0x02060039
> Mar 12 20:07:35 mythtv kernel: ivtv0: Decoder revision: 0x02020023
> Mar 12 20:07:35 mythtv kernel: ivtv0: Autodetected Hauppauge WinTV PVR-350
> Mar 12 20:07:35 mythtv kernel: tuner 0-0061: chip found @ 0xc2 (ivtv i2c driver #0)
> Mar 12 20:07:35 mythtv kernel: saa7115 0-0021: saa7115 found @ 0x42 (ivtv i2c driver #0)
> Mar 12 20:07:35 mythtv kernel: saa7127 0-0044: saa7127 found @ 0x88 (ivtv i2c driver #0)
> Mar 12 20:07:35 mythtv kernel: msp3400 0-0040: MSP4448G-A2 found @ 0x80 (ivtv i2c driver #0)
> Mar 12 20:07:35 mythtv kernel: ivtv0: Registered device video0 for encoder MPEG (4 MB)
> Mar 12 20:07:35 mythtv kernel: ivtv0: Registered device video32 for encoder YUV (2 MB)
> Mar 12 20:07:35 mythtv kernel: ivtv0: Registered device vbi0 for encoder VBI (1 MB)
> Mar 12 20:07:35 mythtv kernel: ivtv0: Registered device video24 for encoder PCM audio (1 MB)
> Mar 12 20:07:35 mythtv kernel: ivtv0: Registered device radio0 for encoder radio
> Mar 12 20:07:35 mythtv kernel: ivtv0: Registered device video16 for decoder MPEG (1 MB)
> Mar 12 20:07:35 mythtv kernel: ivtv0: Registered device vbi8 for decoder VBI (1 MB)
> Mar 12 20:07:35 mythtv kernel: ivtv0: Registered device vbi16 for decoder VOUT
> Mar 12 20:07:35 mythtv kernel: ivtv0: Registered device video48 for decoder YUV (1 MB)
> Mar 12 20:07:35 mythtv kernel: ivtv0: loaded v4l-cx2341x-init.mpg firmware (155648 bytes)
> Mar 12 20:07:35 mythtv kernel: ivtv0: Initialized Hauppauge WinTV PVR-350, card #0
> Mar 12 20:07:35 mythtv kernel: ivtv: ====================== NEXT CARD ======================
> Mar 12 20:07:35 mythtv kernel: ivtv1: Autodetected Hauppauge card (cx23416 based)
> Mar 12 20:07:35 mythtv kernel: ivtv1: Unreasonably low latency timer, setting to 64 (was 32)
> Mar 12 20:07:35 mythtv kernel: ivtv1: loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
> Mar 12 20:07:35 mythtv kernel: ivtv1: Encoder revision: 0x02060039
> Mar 12 20:07:35 mythtv kernel: tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #1)
> Mar 12 20:07:35 mythtv kernel: saa7115 1-0021: saa7115 found @ 0x42 (ivtv i2c driver #1)
> Mar 12 20:07:35 mythtv kernel: msp3400 1-0040: MSP4448G-A2 found @ 0x80 (ivtv i2c driver #1)
> Mar 12 20:07:35 mythtv kernel: ivtv1: Autodetected Hauppauge WinTV PVR-250
> Mar 12 20:07:35 mythtv kernel: ivtv1: Registered device video1 for encoder MPEG (4 MB)
> Mar 12 20:07:35 mythtv kernel: ivtv1: Registered device video33 for encoder YUV (2 MB)
> Mar 12 20:07:35 mythtv kernel: ivtv1: Registered device vbi1 for encoder VBI (1 MB)
> Mar 12 20:07:35 mythtv kernel: ivtv1: Registered device video25 for encoder PCM audio (1 MB)
> Mar 12 20:07:35 mythtv kernel: ivtv1: Initialized Hauppauge WinTV PVR-250, card #1
> Mar 12 20:07:35 mythtv kernel: ivtv: ====================== NEXT CARD ======================
> Mar 12 20:07:35 mythtv kernel: ivtv2: Autodetected Hauppauge card (cx23416 based)
> Mar 12 20:07:35 mythtv kernel: ivtv2: Unreasonably low latency timer, setting to 64 (was 32)
> Mar 12 20:07:35 mythtv kernel: ivtv2: loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
> Mar 12 20:07:35 mythtv kernel: ivtv2: Encoder revision: 0x02060039
> Mar 12 20:07:35 mythtv kernel: tuner 2-0061: chip found @ 0xc2 (ivtv i2c driver #2)
> Mar 12 20:07:35 mythtv kernel: ivtv2: Autodetected Hauppauge WinTV PVR-150
> Mar 12 20:07:35 mythtv kernel: cx25840 2-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #2)
> Mar 12 20:07:35 mythtv kernel: wm8775 2-001b: chip found @ 0x36 (ivtv i2c driver #2)
> Mar 12 20:07:35 mythtv kernel: ivtv2: Registered device video2 for encoder MPEG (4 MB)
> Mar 12 20:07:35 mythtv kernel: ivtv2: Registered device video34 for encoder YUV (2 MB)
> Mar 12 20:07:36 mythtv kernel: ivtv2: Registered device vbi2 for encoder VBI (1 MB)
> Mar 12 20:07:36 mythtv kernel: ivtv2: Registered device video26 for encoder PCM audio (1 MB)
> Mar 12 20:07:36 mythtv kernel: ivtv2: Initialized Hauppauge WinTV PVR-150, card #2
> Mar 12 20:07:36 mythtv kernel: ivtv: ==================== END INIT IVTV ====================
>
>
> # ls /dev/video* -l
> lrwxrwxrwx 1 root root 6 Mar 12 20:07 /dev/video -> video0
> crw------- 1 root root 81, 0 Mar 12 20:07 /dev/video0
> crw------- 1 root root 81, 1 Mar 12 20:07 /dev/video1
> crw------- 1 root root 81, 16 Mar 12 20:07 /dev/video16
> crw------- 1 root root 81, 2 Mar 12 20:07 /dev/video2
> crw------- 1 root root 81, 24 Mar 12 20:07 /dev/video24
> crw------- 1 root root 81, 25 Mar 12 20:07 /dev/video25
> crw------- 1 root root 81, 26 Mar 12 20:07 /dev/video26
> crw------- 1 root root 81, 32 Mar 12 20:07 /dev/video32
> crw------- 1 root root 81, 33 Mar 12 20:07 /dev/video33
> crw------- 1 root root 81, 34 Mar 12 20:07 /dev/video34
> crw------- 1 root root 81, 48 Mar 12 20:07 /dev/video48
>
>
>
>
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