[linux-dvb] QAM 256 starts kicking out VDR widespread TT/FuSi FF cards / on AGC, etc, IMPL and Filter Optimisation

thomas schorpp t.schorpp at gmx.de
Wed Aug 2 22:03:39 CEST 2006


Marco Skambraks wrote:
> hi,
> I tried your patch with TT dvb-c 2.1 premium and the latest firmware 2623
> kernel 2.6.13 and almost the latest dvb/v4l drivers
> my cable-provider is iesy (hessen)
> frq = 121mhz qam256
> for NTV and some of the other private-channels
> the patch has no effect I've still several drop-outs
> if I watch a channel with qam256 modulation
> 
> maybe I can support you with some debug output
> just tell me which data is important to improve the qam256 support in 
> ves1820
> 
> marco
> 
> On Wed, 2 Aug 2006, thomas schorpp wrote:
> 
> 

patch is for developers and debugging only.
but I am interested in Your syslog output like this:

Aug  2 21:49:00 tom1 kernel:  ves1820: Verbose Status:
Aug  2 21:49:00 tom1 kernel: ves1820: VAFC -3
Aug  2 21:49:00 tom1 kernel: ves1820: VAGC 0xff
Aug  2 21:49:00 tom1 kernel: ves1820: AGCCONF 0x13
Aug  2 21:49:00 tom1 kernel: ves1820: AGCREF 0x13
Aug  2 21:49:00 tom1 kernel: ves1820: PWMREF 0x13
Aug  2 21:49:00 tom1 kernel: ves1820: MSE 0x16
Aug  2 21:49:00 tom1 kernel: ves1820: BER-RANGE 0

maybe youve got a old wallplug with ~120MHz trap...
the qam256 problem is mainly frequency independend.


>>patch contains correction for viterbi monitor flag, wrong SYNC register bit
>>used before in ves1820.c(?).
>>cant use hg head - doesnt build dvb-ttpci.ko dont know why, yet.
>>
>>y
>>tom
>>
>>
>><schorpp> lo
>><schorpp> I am on the qam256 problems with some FF cards dvb



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