[linux-dvb] Tuning failed with Twinhan VisionPlus/MagicBox1 USB-Version (dvb-t)

Patrick Boettcher patrick.boettcher at desy.de
Tue Sep 6 22:20:07 CEST 2005


On Tue, 6 Sep 2005, Manu Abraham wrote:
>>>> i have here a mysterious VisionPlus from Twinhand in the usb-version. It 
>>>> has the same tuning-problem like the
>>>> PCI version which is described here:
> Martin,
> I am not the author of the usb version of the driver. In fact Ralph Metzler 
> and Patrick Boetcher had put in efforts in that direction.
> I think probably the device is having timeouts. but that is too wild a guess, 
> but my guess was based upon the dst core, which exists in either case.

Manu, the MagicBox1 and the MagicBox2/Alpha from Twinhan are not equipped 
with the DST-core. The only USB device using the DST I know of is the 
v7021 (DVB-S) aka StarBox. The MagicBox1 is a clone of the first 
USB1.1-device developped by DiBcom. The MagicBox2/Alpha is a complete 
different designed (I think, but I'm not sure, that Twinhan designed it, 

Martin, the MagicBox1 has very poor reception quality. Please make sure 
that you have a good signal with your antenna position. Can you please run 
femon while trying to scan? Does syslog says something weird about the 
device? Can you check reception with another DVB-T card/box?

I recently had the chance to test the very first dibusb DVB-T USB device 
(vp7041, grey box) with recent drivers and it was working surprisingly 


   Mail: patrick.boettcher at desy.de
   WWW:  http://www.wi-bw.tfh-wildau.de/~pboettch/

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