[linux-dvb] TerraTec Cinergy DT USB XS Diversity (Quality with linux worse then with Windows)

Holger Rusch holger at rusch.name
Sun Dec 21 16:33:08 CET 2008


Shameless repost. No idea? Anybody?

Holger Rusch schrieb:
> Hi,
> 
> i got a
> 
> TerraTec Cinergy DT USB XS Diversity
> http://www.linuxtv.org/wiki/index.php/TerraTec_Cinergy_DT_USB_XS_Diversity
> 
> Running well with v4l (except the problems with the SB700 USB ports of 
> my MB (disconnects here and then) => I am using a PCI USB Card with NEC 
> Chipset and everything works well).
> 
> One thing that bugs me:
> 
> The recording/reception quality is much worse that with windows.
> 
> Using the Terratec Software i get 100% signal and 100% quality in 
> check-mode and i NEVER got any frameloss or other picture/sound errors.
> 
> Using v4l and vdr i get mpeg-blocks here and then (5 minutes) and even 
> soundloss or complete frame loss.
> 
> Femon-Plugin for VDR shows me STR/SNR/BNR values which are in the lower 
> orange area, really close to red. => BAD!
> 
> What may be the cause?
> 
> This is set:
> options dvb_usb_dib0700 force_lna_activation=1
> 
> Would be nice to see help to get 100% signal back.
> 
> Tu-Tu Yu schrieb:
>> Hi Sirs:
>> I am working on the Dvico HDTV7 Dual Express TV tuner card under Linux
>> environment with kernel (2.6.26).
>> When I check the snr value and signal status about every 10 seconds,
>> it works fine in first few hours, but it will stop after about 12 - 24
>> hours.
>> I found out if i check the snr and signal status every second. It will
>> stop after 5 hours.
>> If I check the snr and siganl status every time it read PES, it will
>> stop in few minutes.
>> And it will show the message==> value too large for defined data type,
>> Read -1 byte from DVR.
>> Do you think it because the driver is not compatible with my Desktop?
>> Or I shouldnt check the snr value?
>> Thank you so much
>> Tu Tu Yu
>> tutuyu at usc.edu
>>
>> _______________________________________________
>> linux-dvb mailing list
>> linux-dvb at linuxtv.org
>> http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
> 
> 


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+ Contact? => http://site.rusch.name/ +




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