[mythtv-users] Card not ready

[James Linder]

> On 5 Nov 2022, at 8:47 am, John P Poet <jppoet at gmail.com> wrote:
> 
> On Fri, Nov 4, 2022 at 5:00 PM James <jam at tigger.ws> wrote:
> 
> 
>> On 5 Nov 2022, at 7:51 am, John Pilkington <johnpilk222 at gmail.com> wrote:
>> 
>> On 04/11/2022 23:44, James wrote:
>>> Hi
>>> I changed my backend from an i7 to rysan. (Lightning, magic smoke etc)
>>> All went smoothly *except* the cards are not ready when mythtv starts.
>>> This always worked on the i7
>>> -------- mythbackend.service
>>> [Unit]
>>> Description=MythTV backend service
>>> After=network.target mysql.service
>>> Requires=mysql.service
>>> Wants=apache2.service
>>> [Service]
>>> Type=simple
>>> EnvironmentFile=/etc/sysconfig/mythbackend
>>> User=jam
>>> Group=video
>>> ExecStart=/usr/local/bin/mythbackend --logpath /var/log/mythtv $MYTHBACKEND_OPTIONS
>>> --------
>>> At the macro level I know what to do, it's the detail ...
>>> does instantiation of /dev/dvb/adaperN mean the card IS ready or SOON-WILL-BE ?
>>> Any suggestions?
>>> Thanks
>>> James
>> 
>> Firmware?
> 
> dvb-demod-si2168-02.fw  
> 
> whichever is used
> 
> dvb-demod-si2168-b40-01.fw
> 
> James
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> 
> I do not believe this is your problem, but when I switched a machine from Intel to AMD one of my tuners stopped working reliably and I had to add:
> "options cx23885 dma_reset_workaround=2"
> to a conf file in /etc/modprobe.d
> Note that a reboot was required after that change to see the benefit.


John Ta
1) The problem *always* occurs if I reboot
2) The system runs flawlessly for weeks and months after reboot
3) I’m trying to make it robust in the case of power fail
James