[mythtv-users] mythbackend Start-up issue - possible race with dvb device firmware loading

John Pilkington johnpilk222 at gmail.com
Thu Nov 19 10:11:26 UTC 2020


On 18/11/2020 15:14, John Pilkington wrote:
> On 18/11/2020 10:40, John Pilkington wrote:
>> On 18/11/2020 09:46, David Watkins wrote:
>>> A bit more googling suggests it may be the backend testing the card 
>>> which is triggering the firmware load, in which case I'm back to 
>>> square one with trying to identify the problem.
>>>
>>> I'll try increasing the timeouts on the card to see if that helps.
>>>
>>
>> I start myth manually.  On my  MythTV master/Fedora 32 box I have 
>> recently noticed a pause, and sometimes a hang, between the setting of 
>> delivery systems for DVB-T and DVB-T2.  On quitting and restarting 
>> after a hang everything seems to work as normal.
>>
>> On seeing your post I ran 'dmesg | grep firmware' - and got screensful 
>> of reports of downloads for si5128.  Usually, IIRC, it's done on boot; 
>> now it appears to be happening in short bursts at around 200 s 
>> intervals...
>>
> 
> After Stephen's post mentioning filesystem status links I fired up and 
> mounted my NAS which had been offline recently after an RCD power trip 
> caused by a defective pizza-oven element.  The firmware oddity is still 
> happening.  The DVD-T pci card checks firmware status and is satisfied. 
>   The dvb-tuner-si2158 for the MyGica device says it downloads the 
> firmware every time.  I have had occasional failure to lock on a 
> low-power DVB-T2 multiplex too, although once locked the recordings seem 
> ok.

I don't see this regular checking (?) of the firmware versions in el7 at 
much the same Myth release; only in Fedora 32.  Maybe it's a kernel thing?

5.9.8-100.fc32.x86_64
> 
>  > John P
> 



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