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<P><FONT SIZE=2 FACE="Arial">Hi all,</FONT>
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<P><FONT SIZE=2 FACE="Arial">I'm setting up MythTV 0.16 on a friend's box. It has a recent WinTV Go card with a Conexant chip so I'm using the cx8800 kernel module.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">After fiddling a bit with the hue and color settings I got video playback and recording just fine. I wish I could say the same about audio...</FONT></P>
<P><FONT SIZE=2 FACE="Arial">This card has a audio line-out. For use in MythTV this line-out is connected to the line-in of the onboard sound card.</FONT>
<BR><FONT SIZE=2 FACE="Arial">I'm also using tvtime to test the drivers. When using tvtime I connect the line-out of the WinTV Go card directly to the amplifier of my sound system.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">I've tried both the cx8800 v4l driver with kernel 2.6.9 and the snapshot from </FONT><A HREF="http://dl.bytesex.org/cvs-snapshots/video4linux-20041217-141849.tar.gz"><U><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">http://dl.bytesex.org/cvs-snapshots/video4linux-20041217-141849.tar.gz</FONT></U></A><FONT SIZE=2 FACE="Arial">.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Here are my experiences:</FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">- tvtime (non-buffered playback) works perfect with both the 2.6.9 drivers and latest snapshot V4L drivers. Line-out of the WinTV Go card is connected directly to my sound system.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">- mythtv with kernel 2.6.9 V4L drivers: I can't get any sound out of this. I can change channels, playback and record video, but without audio.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">- mythtv with V4L snapshot drivers:The same as with kernel 2.6.9 drivers, except that with these drivers a radio device is now also detected while loading the drivers. When I'm doing TV playback on mythtv (without sound), and I do a 'cat /dev/v4l/radio0', the tuned frequency of the card changes, mythtv playback switches to static, and i _do_ get static out of the speakers all of a sudden. Note that in this case the line-out of the WinTV Go card is connected to the line-in of the sound card. When I now change the channel in mythtv, I get normal tv playback _with_ audio. Video and audio are perfectly in sync. I can change channels and audio keeps on working. If I now press the 'r' key on the keyboard to record the live stream audio get's turned off again. I'm watching the tv stream without sound. Also if I exit live playback and play back the recording stream from the media library, I see that no sound is being recorded. If I do 'cat /dev/v4l/radio0' again, I can watch live (buffered) TV again with sound.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">There is no radio device detected with the kernel 2.6.9 cx8800 V4L driver so I can't try this with those drivers</FONT>
<BR><FONT SIZE=2 FACE="Arial">As you can see in the dmesg output below, with the snapshot drivers a radio device is created and not with the kernel 2.6.9 drivers.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Also, the snapshot drivers detect a MSP3425 audio processor but the msp3400.ko module is not needed for audio to work.</FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">Since unbuffered TV playback in tvtime is working fine and via 'cat /dev/v4l/radio0' I can get sound output on the WinTV Go card enabled in MythTV, I suppose the problem lies in MythTV itself.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Has anybody seen this before? Is this card maybe not yet supported in MythTV? Or maybe the CVS version of MythTV has some fixes for this?</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Thanks & kind regards,</FONT>
<BR><FONT SIZE=2 FACE="Arial">Peter</FONT>
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<P><FONT SIZE=2 FACE="Courier New">root # lsmod</FONT>
<BR><FONT SIZE=2 FACE="Courier New">Module Size Used by</FONT>
<BR><FONT SIZE=2 FACE="Courier New">snd_pcm_oss 48296 0</FONT>
<BR><FONT SIZE=2 FACE="Courier New">snd_mixer_oss 17536 1 snd_pcm_oss</FONT>
<BR><FONT SIZE=2 FACE="Courier New">lirc_dev 10636 0</FONT>
<BR><FONT SIZE=2 FACE="Courier New">tuner 19624 0</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx8800 25616 0</FONT>
<BR><FONT SIZE=2 FACE="Courier New">v4l1_compat 12804 1 cx8800</FONT>
<BR><FONT SIZE=2 FACE="Courier New">v4l2_common 4480 1 cx8800</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx88xx 45792 1 cx8800</FONT>
<BR><FONT SIZE=2 FACE="Courier New">i2c_algo_bit 8328 1 cx88xx</FONT>
<BR><FONT SIZE=2 FACE="Courier New">video_buf 16708 2 cx8800,cx88xx</FONT>
<BR><FONT SIZE=2 FACE="Courier New">ir_common 3844 1 cx88xx</FONT>
<BR><FONT SIZE=2 FACE="Courier New">btcx_risc 3592 2 cx8800,cx88xx</FONT>
<BR><FONT SIZE=2 FACE="Courier New">tveeprom 7364 1 cx88xx</FONT>
<BR><FONT SIZE=2 FACE="Courier New">i2c_core 19024 4 tuner,cx88xx,i2c_algo_bit,tveeprom</FONT>
<BR><FONT SIZE=2 FACE="Courier New">videodev 7232 2 cx8800,cx88xx</FONT>
<BR><FONT SIZE=2 FACE="Courier New">usbhid 22720 0</FONT>
<BR><FONT SIZE=2 FACE="Courier New">uhci_hcd 28752 0</FONT>
<BR><FONT SIZE=2 FACE="Courier New">usbcore 101732 4 usbhid,uhci_hcd</FONT>
<BR><FONT SIZE=2 FACE="Courier New">nvidia 4813076 0</FONT>
<BR><FONT SIZE=2 FACE="Courier New">snd_via82xx 22692 0</FONT>
<BR><FONT SIZE=2 FACE="Courier New">snd_ac97_codec 68624 1 snd_via82xx</FONT>
<BR><FONT SIZE=2 FACE="Courier New">snd_pcm 84680 2 snd_pcm_oss,snd_via82xx</FONT>
<BR><FONT SIZE=2 FACE="Courier New">snd_timer 21188 1 snd_pcm</FONT>
<BR><FONT SIZE=2 FACE="Courier New">snd_page_alloc 7432 2 snd_via82xx,snd_pcm</FONT>
<BR><FONT SIZE=2 FACE="Courier New">gameport 3520 1 snd_via82xx</FONT>
<BR><FONT SIZE=2 FACE="Courier New">snd_mpu401_uart 6080 1 snd_via82xx</FONT>
<BR><FONT SIZE=2 FACE="Courier New">snd_rawmidi 19684 1 snd_mpu401_uart</FONT>
<BR><FONT SIZE=2 FACE="Courier New">snd 45796 8 snd_pcm_oss,snd_mixer_oss,snd_via82xx,snd_ac97_codec,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi</FONT></P>
<P><FONT SIZE=2 FACE="Courier New">soundcore 7328 1 snd</FONT>
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<P><FONT SIZE=2 FACE="Arial">dmesg when kernel 2.6.9 V4L drivers are loaded:</FONT>
</P>
<P><FONT SIZE=2 FACE="Courier New">cx88xx: Unknown parameter `audio_debug'</FONT>
<BR><FONT SIZE=2 FACE="Courier New">Linux video capture interface: v1.00</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx2388x v4l2 driver version 0.0.4 loaded</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx8800[0]: found at 0000:00:06.0, rev: 3, irq: 10, latency: 32, mmio: 0xde000000</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx8800[0]: subsystem: 0070:3401, board: Hauppauge WinTV 34xxx models [card=1,autodetected]</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx8800[0]: i2c register ok</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx8800[0]: hauppauge eeprom: model=34704, tuner=LG TPI8PSB11D (29), radio=no</FONT>
<BR><FONT SIZE=2 FACE="Courier New">tuner: Ignoring new-style parameters in presence of obsolete ones</FONT>
<BR><FONT SIZE=2 FACE="Courier New">tuner: chip found at addr 0xc2 i2c-bus cx8800[0]</FONT>
<BR><FONT SIZE=2 FACE="Courier New">tuner: type set to 29 (LG PAL_BG (TPI8PSB11D)) by cx8800[0]</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx8800[0]: i2c attach [client=LG PAL_BG (TPI8PSB11D)]</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx8800[0]: registered device video0 [v4l2]</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx8800[0]: registered device vbi0</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx8800[0]: set_audio_standard_BTSC (status: known-good)</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx8800[0]: cx88: tvaudio thread started</FONT>
<BR><FONT SIZE=2 FACE="Courier New">lirc_dev: IR Remote Control driver registered, at major 61</FONT>
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<P><FONT SIZE=2 FACE="Arial">dmesg when latest snapshot V4L drivers are loaded:</FONT>
</P>
<P><FONT SIZE=2 FACE="Courier New">Linux video capture interface: v1.00</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx2388x v4l2 driver version 0.0.4 loaded</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx2388x: snapshot date 2004-12-17</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx88[0]: subsystem: 0070:3401, board: Hauppauge WinTV 34xxx models [card=1,autodetected]</FONT>
<BR><FONT SIZE=2 FACE="Courier New">tveeprom: Hauppauge: model = 34704, rev = E148, serial# = 6436853</FONT>
<BR><FONT SIZE=2 FACE="Courier New">tveeprom: tuner = LG TP18PSB11D (idx = 48, type = 29)</FONT>
<BR><FONT SIZE=2 FACE="Courier New">tveeprom: tuner fmt = PAL(B/G) (eeprom = 0x04, v4l2 = 0x00000007)</FONT>
<BR><FONT SIZE=2 FACE="Courier New">tveeprom: audio_processor = MSP3425 (type = 15)</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx88[0]: registered IR remote control</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx88[0]/0: found at 0000:00:06.0, rev: 3, irq: 10, latency: 32, mmio: 0xde000000</FONT>
<BR><FONT SIZE=2 FACE="Courier New">tuner: chip found at addr 0xc2 i2c-bus cx88[0]</FONT>
<BR><FONT SIZE=2 FACE="Courier New">tuner: type set to 29 (LG PAL_BG (TPI8PSB11D)) by cx88[0]</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx88[0]/0: registered device video0 [v4l2]</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx88[0]/0: registered device vbi0</FONT>
<BR><FONT SIZE=2 FACE="Courier New">cx88[0]/0: registered device radio0</FONT>
<BR><FONT SIZE=2 FACE="Courier New">lirc_dev: IR Remote Control driver registered, at major 61</FONT>
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