[mythtv-users] Black Video on Watch TV
Kevin Stone
kevin at pitchpole.net
Fri Aug 22 13:19:32 EDT 2003
Like this?
Opening OSS audio device '/dev/dsp'.
player: /dev/dsp: error setting audio output device to
48000kHz/16bits/2channel
Im thinking its time to stop trying to use the onboard sound and go get a
real soundcard.
Currently
VIAŽ VT8235 Chipset
AC97 audio controller.
Thanks for the help
Kevin
> Usually if you are having sound card issues, mythtv will give you a
> black screen and be unresponsive when you watch TV, this has happened to
> me twice. TO be sure that this is the problem, try to watch TV in mythtv
> and then when the screen turns black press ALT TAB and go and check the
> terminal where you ran the frontend from. It should be giving you a lot
> of errors, such as "can't open /dev/dsp" or something to that effect.
> You should then scroll up in the terminal to where it started to give
> you the errors and then you should see that it says "can't open sond
> device" or something like that. Hope that helps.
> Colin
> On Fri, 2003-08-22 at 09:31, Kevin Stone wrote:
>> Myth .11
>> PVR 250
>> Redhat 9.0
>>
>> Launching Watch TV I get a blank screen that is unresponive to any of
>> the
>> conntrols defined in keys.txt including <ctl><esc>.
>>
>> I can capture video with cat /dev/video0 and display with mplayer no
>> sound
>> at the moment but I dont believe that would cause my problem.
>>
>> Im new to this and have been reading the docs but would appreciate
>> any info that points me in the right direction
>>
>>
>>
>> [root at theater kstone]# /usr/lib/ivtv/test_ioctl -a
>> ioctl: IVTV_IOC_G_CODEC
>> Codec parameters
>> aspect : 2
>> audio : 0x00e9
>> bframes : 3
>> bitrate_mode: 0
>> bitrate : 8000000
>> bitrate_peak: 16000000
>> dnr_mode : 0
>> dnr_spatial : 0
>> dnr_temporal: 0
>> dnr_type : 0
>> framerate : 0
>> framespergop: 15
>> gop_closure : 0
>> pulldown : 0
>> stream_type : 0
>> ioctl: VIDIOC_G_FMT
>> Type : Video Capture
>> Width : 480
>> Height : 480
>> ioctl: VIDIOC_QUERYCAP
>> Driver name : ivtv
>> Card type : Vanilla iTVC15 card
>> Bus info : 0
>> Driver version: 1
>> Capabilities : 0x01030001
>> ioctl: VIDIOC_ENUMINPUT
>> Name : Composite 0
>> Type : 0x00000002
>> Audioset: 0x00000001
>> Tuner : 0x00000000
>> Standard: 0x 3000 ( NTSC )
>> Status : 0
>> Name : Composite 1
>> Type : 0x00000002
>> Audioset: 0x00000001
>> Tuner : 0x00000000
>> Standard: 0x 3000 ( NTSC )
>> Status : 0
>> Name : Composite 2
>> Type : 0x00000002
>> Audioset: 0x00000001
>> Tuner : 0x00000000
>> Standard: 0x 3000 ( NTSC )
>> Status : 0
>> Name : Composite 3
>> Type : 0x00000002
>> Audioset: 0x00000001
>> Tuner : 0x00000000
>> Standard: 0x 3000 ( NTSC )
>> Status : 0
>> Name : Tuner 0
>> Type : 0x00000001
>> Audioset: 0x00000000
>> Tuner : 0x00000000
>> Standard: 0x 3000 ( NTSC )
>> Status : 0
>> Name : Composite 4
>> Type : 0x00000002
>> Audioset: 0x00000001
>> Tuner : 0x00000000
>> Standard: 0x 3000 ( NTSC )
>> Status : 0
>> Name : S-Video 0
>> Type : 0x00000002
>> Audioset: 0x00000001
>> Tuner : 0x00000000
>> Standard: 0x 3000 ( NTSC )
>> Status : 0
>> Name : S-Video 1
>> Type : 0x00000002
>> Audioset: 0x00000001
>> Tuner : 0x00000000
>> Standard: 0x 3000 ( NTSC )
>> Status : 0
>> Name : S-Video 2
>> Type : 0x00000002
>> Audioset: 0x00000001
>> Tuner : 0x00000000
>> Standard: 0x 3000 ( NTSC )
>> Status : 0
>> Name : S-Video 3
>> Type : 0x00000002
>> Audioset: 0x00000001
>> Tuner : 0x00000000
>> Standard: 0x 3000 ( NTSC )
>> Status : 0
>> ioctl: VIDIOC_G_INPUT
>> Input = 5
>> ioctl: VIDIOC_G_FREQUENCY
>> Frequency = 0
>> ioctl: VIDIOC_ENUMSTD
>> ID : 0x 3000
>> Name : NTSC
>> Frame period: 1001/30000
>> Frame lines : 525
>> ID : 0x FF
>> Name : PAL
>> Frame period: 1/25
>> Frame lines : 625
>> ID : 0x 7F0000
>> Name : SECAM
>> Frame period: 1/25
>> Frame lines : 625
>> ioctl: VIDIOC_G_STD
>> Standard = 0x00003000
>> ioctl: VIDIOC_QUERYCTRL
>> Brightness = 128
>> Contrast = 64
>> Saturation = 64
>> Hue = 0
>> Volume = 59343
>> Mute = 0
>>
>>
>> Output from Mythfrontend
>> [root at theater kstone]# mythfrontend
>> Session management error: Authentication Rejected, reason : None of the
>> authentication protocols specified are supported and host-based
>> authentication failed
>> Found 2 Xinerama Screens.
>> Using first Xinerama screen, 1024x768+0+0
>> Found 2 Xinerama Screens.
>> Using first Xinerama screen, 1024x768+0+0
>> connecting to backend server: 127.0.0.1:6543
>> Input #0, mpeg, from
>> 'rbuf://127.0.0.1:6543/var/video/live/ringbuf1.nuv':
>> Stream #0.0: Video: mpegvideo, 480x480, 29.97 fps, 16000 kb/s
>> Stream #0.1: Audio: mp2, 48000 Hz, stereo, 384 kb/s
>> Opening OSS audio device '/dev/dsp'.
>> player: /dev/dsp: error setting audio output device to
>> 48000kHz/16bits/2channel
>> Over/underscanning. V: 0.000000, H: 0.000000, XOff: 0, YOff: 0
>> Found 2 Xinerama Screens.
>> Using first Xinerama screen, 1024x768+0+0
>> Using XV port 105
>> Changing from None to WatchingLiveTV
>>
>>
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