Hi Nick, Could you post the output of lspci -vvv -nn for the device in question - you'll also need to give the -s argument, eg -s 02:00.0 or whatever.
This is so it is clear what chips your example of the card is using - a given card may be implemented with different chipsets over time depending on how organised the manufacturer is. Some kernel output similar to that shown on the wiki page, showing what happens at boot time, may be useful as well. I have this card, and it is working reasonably well with recent media_build code: $ sudo lspci -vvv -nn -s 04:00.0 04:00.0 Multimedia video controller [0400]: Conexant Systems, Inc. CX23885 PCideo and Audio Decoder [14f1:8852] (rev 02) Subsystem: DViCO Corporation Device [18ac:db78] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Sping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbor<MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 32 Region 0: Memory at 90000000 (64-bit, non-prefetchable) [size=2M] Capabilities: [40] Express (v1) Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, <1us ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsuppod- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- Trannd- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latenc0 <2us, L1 <4us ClockPM- Suprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommCl ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLAct- BWMgmt- ABWMgmt- Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3+,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [90] Vital Product Data <?> Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit+ Queue=0Enable+ Address: 00000000fee0200c Data: 41c9 Capabilities: [100] Advanced Error Reporting <?> Capabilities: [200] Virtual Channel <?> Kernel driver in use: cx23885 Kernel modules: cx23885 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html