[linux-dvb] twinhan 1020A not working

Gregor Fuis gujs.lists at gmail.com
Sun Jan 6 14:49:36 CET 2008

Remy Bohmer wrote:
> Hello Gregor,
> Can you please give me the revision numbers?
> These are listed somewhere on the boards.
> As mentioned before, different revisions are different clones from
> other boards en need a different driver configuration.
> Besides, I do not know if all combinations of different revisions of
> the boards work with 1 driver and generic setting. Maybe with the
> latest changes CityK was talking about, it is possible now?
> At first, I would suggest to leave the 'green' board out, and just put
> in the cards of the same revision and get that working, when this
> works you can put back in your 'green' card, and try get that working
> also.
> To check which firmware version you have, you can enable the logging
> inside the drivers.
> It is good to hear that you do not have a yellow card (rev3) in the
> system, which seems to be the most unstable card of the series.
> Luckily you do not need a CAM on these boards, because that part is
> very unstable inside the cards itself, which sometimes require a full
> power off of the system (power cable removed for at least 20 seconds),
> to get the boards reset again and to get them working properly... (in
> fact, if the CAM part of some board is getting into an undefined
> state, this will also result in a unbootable system, because the
> firmware is not behaving properly anymore...)
> Note: To work around this reset issue partly, it might be worth trying
> to add these flags to your modprobe.conf: 'options dst dst_addons=32'
> I added this dst_addons option set to 32(=DST_TYPE_HAS_CA) to make
> sure the card is reset on load time of the dst-driver. if omitted, the
> dst driver will not be able to communicate to the card during
> dst_probe() on a cold boot and loading the dst (and dst_ca) driver
> fails. (A soft reboot will load the driver after reboot without
> problems.)
> Kind Regards,
> Remy

The blue colored are version 1.0, but on green colored I can't find 
version number anywhere on PCB. I will try to remove some labels, if it 
is under.
I replaced green one with other blue card because I have total 5 blue 
cards. I wold like to get 4 of the to work for my new mythtv setup. And 
then to setup another slave mythtv backend for other two.

I tried your advice with this lines in /etc/modprobe.d/options
options dvb_core dvb_shutdown_timeout=0
options bttv i2c_hw=1,1,1,1 card=0x71,0x71,0x71,0x71
options dst dst_addons=32,32,32,32

With these lines I can get to work three cards of 4 (all ver 1.0 and 
blue), but I can boot my system just 1/3 times. Other 2/3 of boot 
procedures system just hangs.


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