Hi Just a heads up. I'm having to revert cx23885-core.c to the 4.17 version to obtain stability with my old AMD Phenom/ASUS M4A785TD and Hauppauge WinTV-HVR-5525. The latest code drops out and refuses to return video streams in hours or a few days max. The 4.17 version is fine and stable over weeks/months. 04:00.0 Multimedia video controller: Conexant Systems, Inc. CX23887/8 PCIe Broadcast Audio and Video Decoder with 3D Comb (rev 04) Subsystem: Hauppauge computer works Inc. Device f038 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: 64 bytes Interrupt: pin A routed to IRQ 17 Region 0: Memory at fe800000 (64-bit, non-prefetchable) [size=2M] Capabilities: <access denied> Kernel driver in use: cx23885 Cheers David