Re: md7134 + FC3 | |
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Am Sa, den 29.01.2005 schrieb Geert Batsleer um 18:02: > Hi all, > > I'm having trouble to get my MD7134 card working properly in Fedora Core 3. > > More specifaclly the tuner part of the card with gnomeradio or the > radio program in xawtv. Hi! > I've added the following in modprobe.conf: > alias char-major-81 saa7134 > options saa7134 card=13 tuner=1 oss=1 try: alias char-major-81-* videodev alias char-major-81-0 saa7134 options saa7134 card=12 tuner=38 oss=1 dsp_nr=1 mixer_nr=1 oss_debug=1 options tda9887 qss=1 port1=1 port2=0 debug=2 > I'm not sure if the tuner option is correct for frequencies in belgium > for this Medion 7134 radio card? You are the victim of an error in the script generated CARDLIST.saa7134 in 2.6.10. The md7134 is card=12 with tuner=38 and should be autodetected. (see saa7134.h) Some of the older revisions of the card come also with tuner=5 and that one has to be set manually. (e.g. Rev. CTX908_V3 Modem) All newer ones come with tuner=38, which contains the tda9887 demodulator.(e.g. Rev. CTX 909_V2 Isdn) The latest revisions are also DVB-T capable and have some demod and a third visible crystal behind the tuner, no more space for the older, larger tuner=5. (Rev. CTX 910_something) Also in latest aldi tinanium 8383xl it seems that only video input on the yellow MPC2 connector is plugged, analog (cdrom like) audio cabling is missing on the red audio output and the white audio input (black on some revisions). Maybe the reason why you enable saa7134-oss ? To be able to record radio this way the saa7134-oss-mixer has to be switched to LINE2 for that card. Some others have it also at LINE1. The card specific .amux can be looked up in saa7134-cards.c. As a sidenote, we have recently found that the external audio input for svideo and composite is on LINE1 and not LINE2, at least for my two card revisions and it also is confirmed by DScaler's settings. Fixed in recent snapshots. (If the driver isn't loaded, audio is simply passed through, with LINE2 it was blocked later, you can also digitize any incoming analog audio there, valid sample rates are 32000 and 48000Hz, the latter is only valid for this external input and you will lose the tv-input in the oss-mixer with that oss_rate set :) For radio you _have_ to specify stereo (2 channels) and 32000Hz, preferable 16bit. There are some known minor issues like mute doesn't work 100% and volume full up is still -18db, volume slider hangs (only tuner=38) and radio doesn't mute on exit, switch to tv. Else this works rock solid. Trouble can be caused by DMA buggy hardware, the NVIDIA driver in OVERLAY mode and using the ISDN version of the card outside the special designed blue PCI slot ... If you have a cable on the red analog audio output connected to some cd/aux input on your mainboard also a problem with the soundchip c-media CMI9880 on latest can occure. No idea how far the support for it is, but I remember well that we had already issues with the predecessor, ending up in using sox for ossdsp sound mapping to get anything out in realtime and not only with timeshifted recordings. (a 2nd card starts at 15â?¬ if any of the additional PCI slots is useable) The radio sound with tuner=38 and tda9887 is mono, with tuner=5 it's stereo. The above tda9887 settings are known to work with that card also for tv-sound Nicam-BG in Belgium. With latest snapshots "port1=0 port2=0" for tda9887 is set by default and that should be indeed the best. That was also the only solution to get rid of some nasty permanently new arising hiss I catched once, only surpressed by speech at times. After that (reset?) it was also functional as usual again with "qss=1 port1=1 port2=1" and also port2=0 with Pal-BG dual FM. However, as just experienced considering your problem, the current new defaults make the radio with tuner=38 unuseable! Sorry :) Port1 has to be set back to 1/inactive/high to have it fine again. For what I can hear gain control on the card is extremly sensitive for frequencies in the middle of human speach. Another different trigger are some high tones within dying away sound, this is much more moderate, but can start in dual FM and intercarrier some slight crackling, in qss some minimum hiss. In the current radio case speech will start hard loud bangs in a dense succession (capacitor), whereas a violin concert is completely disturbed by loud crackling. Some smooth rock can give the illusion that all is fine, for a few seconds ... ;) Maybe something can be helpfull ... my cards are fine. Greetings, Hermann p.s. In case you have the new DVB-T capable type, mail the differences you can find compared to the md7134 in the bttv-gallery.de. > At the moment I'm using Fedora Core with the 2.6.10 kernel and Alsa as > sound system. > > Are there people in this mailing-list with the same card that got the > radio function working properly? > > kind regards, ivago > > PS got a hauppauge wintv card in other PC wich works perfect with the > bttv driver so maybe it has something todo with the saa7134 module? -- Unsubscribe mailto:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list
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