[mythtv-users] TBS-6281 drivers for MythTV 16.04

[jksj]

On 03/02/18 19:25, Mike Bibbings wrote:
> On 03/02/18 18:54, Grzegorz Sikorski wrote:
>> Hi,
>>
>> I've been trying to upgrade my old Mythbuntu recorder from 
>> 14.04->16.04. Unfortunately, drivers for my DVB card (TBS-6281) are 
>> not compiling with new kernel (4.11+). Has anybody tried this config 
>> or am I condemned to 14.04 and old kernel?
>>
>> Best regards,
>> Greg
>>
>
> There are now open source  drivers for TBS see 
> https://github.com/tbsdtv/linux_media/wiki
>
> I have been using these open source drivers for a long time now with 
> my TBS 6981 (dual DVB-S/S2) and TBS 6280 (dual DVB-T/T2) pcie cards.
>
> As with the TBS closed source drivers you have to rebuild if the 
> kernel gets updated.
>
> Note as of writing they work on Ubuntu 160.04 LTS (HWE) with the 
> current kernel 4.13.0-32-generic #35~16.04.1-Ubuntu SMP Thu Jan 25 
> 10:13:43 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
>
> They don't yet work with the just released 4.15Ubuntu mainline kernel, 
> build fails with a ring buffer error (it did earlier today).
>
> Mike
>
>
>
>
>
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Apologies for hijacking the thread. I can confirm that the TBS 
opensource driver works on 4.04 & 4.13 kernels. However on 4.13 the 
tuner fails to lock on any channel after power on. A reboot fixes it and 
the card then works flawlessly. With the 4.04 kernel the card TBS 6902 
(dual DVB-S/S2) suffers this problem far less often. In both cases the 
driver is compiled from the same source. I suspect it is a timing 
issue.  A DVBsky dual tuner card I had previously had similar issues 
where as a single tuner card worked perfectly.

I am beginning to suspect either quick tune or  EIT.

Could you post the result of

mysql> select 
cardid,sourceid,videodevice,displayname,recpriority,quicktune,schedorder,livetvorder,dvb_eitscan,dvb_on_demand 
from capturecard;

+--------+----------+-------------------------------+-------------+-------------+-----------+------------+-------------+-------------+

| cardid | sourceid | videodevice | displayname | recpriority | 
quicktune | schedorder | livetvorder | dvb_eitscan |

+--------+----------+-------------------------------+-------------+-------------+-----------+------------+-------------+-------------+

| 12 | 4 | /dev/dvb/adapter101/frontend0 | Frv1 | 0 | 2 | 1 | 1 | 1 |

| 11 | 4 | /dev/dvb/adapter101/frontend0 | Frv1 | 0 | 2 | 1 | 1 | 1 |

| 7 | 2 | /dev/dvb/adapter106/frontend0 | FS1 | 4 | 0 | 1 | 1 | 0 |

| 9 | 2 | /dev/dvb/adapter106/frontend0 | FS1 | 4 | 0 | 1 | 1 | 0 |

| 13 | 4 | /dev/dvb/adapter101/frontend0 | Frv1 | 0 | 2 | 1 | 1 | 1 |

| 14 | 4 | /dev/dvb/adapter101/frontend0 | Frv1 | 0 | 2 | 1 | 1 | 1 |

| 15 | 2 | /dev/dvb/adapter107/frontend0 | FS2 | 3 | 0 | 1 | 1 | 1 |

| 16 | 2 | /dev/dvb/adapter107/frontend0 | FS2 | 3 | 0 | 1 | 1 | 1 |

+--------+----------+-------------------------------+-------------+-------------+-----------+------------+-------------+-------------+

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