On Thu, Sep 13, 2018 at 06:39:57PM +0100, David R wrote:
> 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
Interesting. cx88 also seems to have regressed.
Are you able to give a git commit range for what works & doesn't work?
I asked Adam to try building the modules with media-build
but have not heard anything further.
Date: Sat, 8 Sep 2018 20:49:22 -0400
From: Adam Stylinski <kungfujesus06@xxxxxxxxx>
To: linux-media@xxxxxxxxxxxxxxx
Subject: 4.18 regression
Hello,
I haven't done a thorough bisection of kernel revisions, but moving from kernel 4.17.19
to 4.18.6 results in mythtv being unable to tune in any channel with a pic hdtv 5500
tuner (cx88 based device with an LG frontend). I get an error back from the channel
scanner about not being able to measure signal strength and getting back an error unknown
(errno 254).
I was able to use dvbtools with get-atsc to get a channel, but I don't think any of the
forward error correction was applied to it.
Let me know if you need more details.
Vince
