KNC One, TV-Station DVB-S2 Twin

KNC One, TV-Station DVB-S2 Twin

[Olav Aasgaard]

> Hi,
> 
> I have tried for weeks to make this card work with Tvheadend and now recently with Myth TV on the following configuration:
> • Intel(R) Core(TM)2 Duo CPU     E4600  @ 2.40GHz
> • Ubuntu desktop 12.04
> • Kernel version 3.2.0-36-generic-pae
> • KNC1 TV-Station DVB-S2 Twin card
> http://knc1.de/d/produkte/digital_dvb_s2_twin.htm
> 
> KNC1 are providing a Linux driver on their homepage http://knc1.de/d/download/digital.htm#linux
> 
> The driver builds and loads fine. I’m able to scan for channels. It’s even possible to record TV (with both Tvheadend and Myth TV backend).
> But here the fun part ends. When I play back the recorded files they do not have proper quality. HDTV is useless – even standard TV resolution is not acceptable.
> 
> $sudo lspci -vv
> 04:00.0 Multimedia controller: Philips Semiconductors SAA7160 (rev 02)
>        Subsystem: KNC One Device 0210
>        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
>        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>        Latency: 0, Cache Line Size: 32 bytes
>        Interrupt: pin A routed to IRQ 16
>        Region 0: Memory at f6a00000 (64-bit, non-prefetchable) [size=1M]
>        Capabilities: [40] MSI: Enable- Count=1/32 Maskable- 64bit+
>                Address: 0000000000000000  Data: 0000
>        Capabilities: [50] Express (v1) Endpoint, MSI 00
>                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <256ns, L1 <1us
>                        ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset-
>                DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
>                        RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
>                        MaxPayload 128 bytes, MaxReadReq 128 bytes
>                DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
>                LnkCap: Port #1, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <4us, L1 <64us
>                        ClockPM- Surprise- LLActRep- BwNot-
>                LnkCtl: ASPM Disabled; RCB 128 bytes Disabled- Retrain- CommClk-
>                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>                LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
>        Capabilities: [74] Power Management version 2
>                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot-,D3cold-)
>                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>        Capabilities: [80] Vendor Specific Information: Len=50 <?>
>        Capabilities: [100 v1] Vendor Specific Information: ID=0000 Rev=0 Len=088 <?>
>        Kernel driver in use: SAA716x Budget
>        Kernel modules: saa716x_budget
> 
> I have been searching the internet for a long time - without beeing able to come to a solution. I do not know how to proceed from here. Any advice?
> 
> If I'm able to find a solution, I will be happy to update http://www.linuxtv.org/wiki/index.php/DVB-S2_PCIe_Cards with my experience...
> 
> Best regards,
> Olav Åsgård
>