On Sat, 2008-09-06 at 16:12 -0400, Richard Ayotte wrote: > Thank you for the quick response. Setting mmio_ndelay=0 fixed the > problem. Your work is appreciated.
Rich, Could you also try a value of mmio_ndelay=61 or 91 or 121 to see if any of those work. We'll assume the default of 31 still doesn't work for you. If one of these higher values works for you, I would recommend using it, rather than the setting of 0. Regards, Andy > Rich > > On Sat, Sep 6, 2008 at 3:28 PM, Andy Walls <[EMAIL PROTECTED]> wrote: > > On Sat, 2008-09-06 at 13:02 -0400, Richard Ayotte wrote: > >> Hi, > >> > >> I initially had audio problems in MythTV that were later resolved at > >> the end of July with this patch. > >> > >> http://linuxtv.org/hg/v4l-dvb/rev/6fc3c82281f3 > >> > >> But with the latest driver I'm have a different audio problem - no > >> audio at all except for the occasional screech. System sounds still > >> work fine so I've ruled out sound card problems. > >> > >> I'm using the analog tuner on Ubuntu Hardy with the Intrepid ivtv > >> package on an AMD64 Opteron with 4G RAM. > >> > >> Here's some system info: > >> > >> $ ivtvctl --version > >> ivtvctl version 1.2.0 (tagged release) > >> > >> $ dmesg |grep cx18 > >> [ 261.019358] cx18: Start initialization, version 1.0.0 > >> [ 261.019472] cx18-0: Initializing card #0 > >> [ 261.019520] cx18-0: Autodetected Hauppauge card > >> [ 261.020056] cx18-0: Unreasonably low latency timer, setting to 64 (was > >> 32) > >> [ 261.021537] cx18-0: cx23418 revision 01010000 (B) > >> [ 261.217148] cx18-0: Autodetected Hauppauge HVR-1600 > >> [ 261.217195] cx18-0: VBI is not yet supported > >> [ 262.090741] tuner 3-0043: chip found @ 0x86 (cx18 i2c driver #0-1) > >> [ 262.131668] tuner 3-0061: chip found @ 0xc2 (cx18 i2c driver #0-1) > >> [ 262.131751] cs5345 2-004c: chip found @ 0x98 (cx18 i2c driver #0-0) > >> [ 262.178526] cx18-0: Disabled encoder IDX device > >> [ 262.178626] cx18-0: Registered device video0 for encoder MPEG (2 MB) > >> [ 262.178678] DVB: registering new adapter (cx18) > >> [ 262.318897] cx18-0: DVB Frontend registered > >> [ 262.318971] cx18-0: Registered device video32 for encoder YUV (2 MB) > >> [ 262.319038] cx18-0: Registered device video24 for encoder PCM audio (1 > >> MB) > >> [ 262.319107] cx18-0: Registered device radio0 for encoder radio > >> [ 262.319978] cx18-0: Initialized card #0: Hauppauge HVR-1600 > >> [ 262.320050] cx18: End initialization > >> [ 278.130281] cx18-0: loaded v4l-cx23418-apu.fw firmware V00120000 > >> (141200 bytes) > >> [ 278.500794] cx18-0: loaded v4l-cx23418-cpu.fw firmware (158332 bytes) > >> [ 278.504205] cx18-0: FW version: 0.0.74.0 (Release 2007/03/12) > >> [ 279.169571] cx18-0: loaded v4l-cx23418-dig.fw firmware (16382 bytes) > >> > >> > >> $ v4l2-ctl -d /dev/video0 --log-status > >> > >> Status Log: > >> > >> [ 1163.389925] cx18-0: ================= START STATUS CARD #0 > >> ================= > >> [ 1163.411465] tveeprom 2-0050: Hauppauge model 74541, rev C6B6, > >> serial# 3326793 > >> [ 1163.411471] tveeprom 2-0050: MAC address is 00-0D-FE-32-C3-49 > >> [ 1163.411475] tveeprom 2-0050: tuner model is Philips FM1236 MK5 > >> (idx 116, type 43) > >> [ 1163.411479] tveeprom 2-0050: TV standards NTSC(M) (eeprom 0x08) > >> [ 1163.411482] tveeprom 2-0050: audio processor is CX23418 (idx 38) > >> [ 1163.411484] tveeprom 2-0050: decoder processor is CX23418 (idx 31) > >> [ 1163.411488] tveeprom 2-0050: has radio > >> [ 1163.411493] cx18-0: Video signal: present > >> [ 1163.411496] cx18-0: Detected format: NTSC-M > >> [ 1163.411499] cx18-0: Specified standard: NTSC-M > >> [ 1163.411501] cx18-0: Specified video input: Composite 7 > >> [ 1163.411504] cx18-0: Specified audioclock freq: 32000 Hz > >> [ 1163.411511] cx18-0: Detected audio mode: mono > >> [ 1163.411514] cx18-0: Detected audio standard: no detected audio > >> standard > >> [ 1163.411517] cx18-0: Audio muted: yes > >> [ 1163.411520] cx18-0: Audio microcontroller: running > >> [ 1163.411523] cx18-0: Configured audio standard: automatic detection > > > > Somehow I broke the audio microcontroller auto audio standard detection > > by slowing down IO accesses to the CX23418 (by 1 PCI clock cycle > > each!?). This is only a problem on 1 of my three machines: the 1 I > > didn't test the change on of course. > > > > I'll submit a quick fix to be pulled for v4l-dvb, and then try to figure > > out what's going on. Until then load the module with the mmio_ndelay > > parameter set to 0: > > > > # modprobe cx18 mmio_ndelay=0 > > > > That fixes the problem for me. > > > > > >> [ 1163.411526] cx18-0: Configured audio system: BTSC > >> [ 1163.411529] cx18-0: Specified audio input: Tuner (In8) > >> [ 1163.411532] cx18-0: Preferred audio mode: stereo > >> [ 1163.412726] cs5345 2-004c: Input: 1 > >> [ 1163.412729] cs5345 2-004c: Volume: 0 dB > >> [ 1163.412733] tda9887 3-0043: Data bytes: b=0x14 c=0x30 e=0x44 > >> [ 1163.412737] tuner 3-0061: Tuner mode: analog TV > >> [ 1163.412740] tuner 3-0061: Frequency: 77.25 MHz > >> [ 1163.412743] tuner 3-0061: Standard: 0x0000b000 > >> [ 1163.412747] cx18-0: Video Input: Tuner 1 > >> [ 1163.412749] cx18-0: Audio Input: Tuner 1 > >> [ 1163.412752] cx18-0: GPIO: direction 0x00003001, value 0x00003001 > >> [ 1163.412755] cx18-0: Tuner: TV > >> [ 1163.412758] cx18-0: Stream: MPEG-2 Program Stream > >> [ 1163.412761] cx18-0: VBI Format: No VBI > >> [ 1163.412764] cx18-0: Video: 720x480, 30 fps > >> [ 1163.412767] cx18-0: Video: MPEG-2, 4x3, Variable Bitrate, > >> 4500000, Peak 6000000 > >> [ 1163.412772] cx18-0: Video: GOP Size 15, 2 B-Frames, GOP Closure > >> [ 1163.412776] cx18-0: Audio: 32 kHz, MPEG-1/2 Layer II, 384 kbps, > >> Stereo, No Emphasis, No CRC > >> [ 1163.412781] cx18-0: Spatial Filter: Manual, Luma 1D Horizontal, > >> Chroma 1D Horizontal, 0 > >> [ 1163.412785] cx18-0: Temporal Filter: Manual, 8 > >> [ 1163.412788] cx18-0: Median Filter: Off, Luma [0, 255], Chroma [0, > >> 255] > >> [ 1163.412791] cx18-0: Status flags: 0x00200001 > >> [ 1163.412794] cx18-0: Stream encoder MPEG: status 0x0000, 0% of > >> 2016 KiB (63 buffers) in use > >> [ 1163.412798] cx18-0: Stream encoder YUV: status 0x0000, 0% of > >> 2048 KiB (16 buffers) in use > >> [ 1163.412802] cx18-0: Stream encoder PCM audio: status 0x0000, 0% > >> of 1008 KiB (63 buffers) in use > >> [ 1163.412806] cx18-0: Read MPEG/VBI: 8210432/0 bytes > >> [ 1163.412809] cx18-0: ================== END STATUS CARD #0 > >> ================== > >> > >> The odd thing from this status is that the audio is muted and it stays > >> muted even when I run v4l2-ctl -c mute=0. > > > > The audio microcontroller is free to muck with the mute control if it > > thinks the audio on the tuner SIF has changed. > > > > Regards, > > Andy > > > > > > > > > > _______________________________________________ > > ivtv-users mailing list > > [email protected] > > http://ivtvdriver.org/mailman/listinfo/ivtv-users > > > > > _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
