[mythtv-users] Recording failure.

[Allen Edwards]

On Wed, Feb 20, 2019 at 10:18 AM Allen Edwards <allen.p.edwards at gmail.com>
wrote:

>
>
> On Fri, Feb 15, 2019 at 9:31 PM Allen Edwards <allen.p.edwards at gmail.com>
> wrote:
>
>> This happened again today. I was able to do some experiments this time so
>> I have new data.
>>
>> I ran the HDHomerun_Config gui and both HDHomerun devices were missing.
>> I power cycled the HDHomerun units and no difference.  I also ran
>> <hdhomerun_config 10137DC1 set /ir/target "192.168.1.111:5000 no_clear">
>> before and after power cycling the HDHomerun units and linux just gave an
>> error message <unable to connect to device>. This is the command I use in
>> rc.local to configure the units on power up. Power cycling the mythbox
>> without power cycling of the HDHomerun boxes fixed the issue.
>>
>> I noticed this evening because the remote would not work (the HDHomerun
>> has the ir reader).  We went ahead and watched our evening show without
>> issue using a keyboard for control. Then I ran my tests after we were done
>> watching.
>>
>> I also noticed that our 3PM show did not record but the 8AM show did
>> record. The 3PM show comes on again at 6PM and myth tried to record it both
>> times but failed.
>>
>> This sure looks like something new to Mythbuntu 16.04.1 LTS. I ran the
>> same hardware with Mythbuntu 8 for ten years without this happening.  It
>> seems to happen not quite once a month and the unit is on 24/7.
>>
>> Any ideas?  I don't know what to do.
>>
>>
> This is an update.  I think the consensus is that this is a network
> problem. I got the suggestion from Silicondust that I see if the HDHomeRun
> units are visible from my Windows computer on the same network.  I also set
> the IP addresses as reserved in case it is a router problem although that
> seems very unlikely. At this point I am going to wait and see if it happens
> again and them do some troubleshooting.
>
> I guess there is a legitimate question if the drivers on Mythbuntu 16
> could be incompatible with my old motherboard.  I never had this problem
> with Mythbuntu 8 which I ran on the same hardware for many years. Something
> like this happened on my video card drivers causing many hours of
> troubleshooting and way more learning about video drivers than I expected
> to need.
>
> Should be using a different network driver?
>
> Here is some information from lspci -v
>
> 02:00.0 Ethernet controller: Qualcomm Atheros Attansic L1 Gigabit Ethernet
> (rev b0)
>         Subsystem: ASUSTeK Computer Inc. P5KPL-VM Motherboard
>         Flags: bus master, fast devsel, latency 0, IRQ 26
>         Memory at febc0000 (64-bit, non-prefetchable) [size=256K]
>         Expansion ROM at feba0000 [disabled] [size=128K]
>         Capabilities: [40] Power Management version 2
>         Capabilities: [48] MSI: Enable+ Count=1/1 Maskable- 64bit+
>         Capabilities: [58] Express Endpoint, MSI 00
>         Capabilities: [6c] Vital Product Data
>         Capabilities: [100] Advanced Error Reporting
>         Kernel driver in use: atl1
>         Kernel modules: atl1
>
>
 It has been about 6 weeks since the last time my Linux computer lost its
connection to my HDHR boxes. At that time my assignment was to do some
troubleshooting.  It looks a lot like a Linux problem.  Here is what I
observed.
1) The remote was not working
2) I saw that all the shows since the morning show were errored and not
recorded as described previously.
3) HDHR Config on the Myth computer did not show any HDHR units connected
like it usually does
4) HDHR on my Windows 7 computer showed the four tuners just like it always
does.
5) I rebooted the Linux computer without touching the HDHR boxes or
anything else
6) Everything is working again.

Thus I can conclude it is not a problem with the HDHRs.  It is not a router
or switch problem. It is a problem inside the Myth box either hardware or
software.

As I have said, this hardware has worked for 10 years under Mythbuntu 8
without issue. But there were some changes
1) New video card
2) Added some new RAM
3) New hard drive
4) Installed Mythbunty 16 (clean install, not an upgrade).

I have no other problems with the system.

Any ideas?

Allen
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