[mythtv-users] Indoor HD antenna question

[Stephen Worthington]

On Sat, 14 Apr 2018 09:01:11 +0100, you wrote:

>On 14/04/18 05:23, Stephen Worthington wrote:
>> On Fri, 13 Apr 2018 20:32:52 +0000, you wrote:
>> 
>
>> 
>> The "demux0  dvr0  frontend0  net0" devices are all correct for a
>> normal DVB or ATSC tuner.  What we are not sure of now is if they all
>> work correctly.  Trying the "scan" command should tell us whether the
>> tuner works at a basic level, and then if that works, once scan has
>> created a channels.conf file, that can be used with an "azap -r
>> <channel name>" command to tune the tuner to one channel and make that
>> play on the /dev/dvb/adapter0/dvr0 device.  You leave azap running and
>> in another command prompt run a command line player program like
>> mplayer to play from the dvr0 device:
>> 
>> mplayer /dev/dvb/adapter0/dvr0
>> 
>> Mplayer should pop up a window and play the channel.  It will also log
>> to the console to show what is happening, and tell us what went wrong
>> if it can not play the channel.
>
>The centosplus kernel is, IIRC, an el6 kernel with extra drivers for 
>non-el-type stuff like multimedia.  The current kernel is
>
>http://mirror.centos.org/centos/6/centosplus/x86_64/Packages/kernel-2.6.32-696.23.1.el6.centos.plus.x86_64.rpm
>
>with a build date of 2018-03-14, probably for the spectre security fix.
>
>Your dmesg shows
>
>Linux version 2.6.32-220.17.1.el6.centos.plus.x86_64 
>(mockbuild at c6b5.bsys.dev.centos.org) (gcc version 4.4.6 20110731 (Red 
>Hat 4.4.6-3) (GCC) ) #1 SMP Wed May 16 05:20:13 BST 2012
>
>I doubt that saa7134 stuff has been updated much since then, but
>you probably ought to think about doing some updating, anyway :-)

2.6!!!! Is that really the kernel version?  That is ancient!  There
has been a lot of development of V4L since then, so I hope it has
updates for that.  My Mythbuntu 16.04 LTS is running
4.4.0-119-generic, and that is quite old - the new 18.04 LTS build is
due out in a few days and will be running 4.15.

Not to mention that a kernel that old will not run SSDs properly (no
TRIM), and will not run NVMe SSDs at all.  And will likely not work
with shingled drives like my 8 TByte Seagates.  And will not work
properly with new CPUs like Ryzens.