[linux-dvb] Re: CVS-version of the driver gives worse SNR than pre2

[Mikko Tuumanen <m@sorvankyla.yok.utu.fi>]

> > It seems the problem is in grundig_29504-401.o

> Should be fixed in CVS (pre3 still has the bug, unfortunately).

It doesn't still work for me. I downloaded the final 1.0.0 -version.
With all modules from 1.0.0 I get about 10 block errors per second.

If I take grundig_29504-401.o from pre2 and all other modules from 1.0.0
the block errors go away.

If I try the grundig_29504-401.o from pre2 with the current cvs version,
all I get is "no such device".


And then I have a another problem with the cvs version:

Signal=12850, Verror=241, SNR=53713dB, BlockErrors=21, (S|L|C|V|SY|)
Signal=12850, Verror=214, SNR=54227dB, BlockErrors=23, (S|L|C|V|SY|)
Signal=12850, Verror=217, SNR=54227dB, BlockErrors=25, (S|L|C|V|SY|)
Signal=12850, Verror=205, SNR=54227dB, BlockErrors=0, (S|L|C|V|SY|)
Signal=12850, Verror=647, SNR=53970dB, BlockErrors=0, (S|L|C|V|SY|)
Signal=0, Verror=0, SNR=65535dB, BlockErrors=0, ()
Signal=0, Verror=0, SNR=65535dB, BlockErrors=0, ()
Signal=0, Verror=0, SNR=65535dB, BlockErrors=0, ()
Signal=0, Verror=0, SNR=65535dB, BlockErrors=0, ()

The card does that after a few seconds of running dvbstream.
If I run dvbstream again, the I get the picture back for a
few seconds, but then it happens again.


Here is the lspci output:
00:0b.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01)
        Subsystem: Technotrend Systemtechnik GmbH: Unknown device 1005
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 32 (3750ns min, 9500ns max)
        Interrupt: pin A routed to IRQ 9
        Region 0: Memory at e8041000 (32-bit, non-prefetchable) [size=512]

And some lines from dmesg:
Linux video capture interface: v1.00
DVB: registering new adapter (TT-Budget/WinTV-NOVA-T  PCI).
PCI: Found IRQ 9 for device 00:0b.0
PCI: Sharing IRQ 9 with 00:07.2
DVB: registering frontend 0:0 (Grundig 29504-401)...
mt312_read: ret == -121
TT-Budget/WinTV-NOVA-T  PCI adapter 0 has MAC addr = 00:d0:5c:20:f5:28





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