[mythtv-users] Can't open DVB frontend with 4.2 kernel

[Stuart Auchterlonie]

On 25/10/15 19:53, Josu Lazkano wrote:
> Hello,
> 
> I just upgrade the backend server to 4.2 kernel because I add a new
> DVB-S2 device (Tevii S482).
> 
> Now the problem is that I can not add any DVB-S2 device, it says:
> 
> 2015-10-25 20:07:42.937872 E  Can't open DVB frontend
> (/dev/dvb/adapter6/frontend0) for /dev/dvb/adapter6/frontend0.
> 
> This is the adapter permissions:
> 
> # ls -lh /dev/dvb/adapter6/
> total 0
> crw-rw---- 1 root video 212, 0 Oct 25 20:02 demux0
> crw-rw---- 1 root video 212, 1 Oct 25 20:02 dvr0
> crw-rw---- 1 root video 212, 3 Oct 25 20:02 frontend0
> crw-rw---- 1 root video 212, 2 Oct 25 20:02 net0
> 
> It only happens with DVB-S2 devices, I have other DVB-T devices and
> they works great.
> 
> My devices are Tevii S470 and Tevii S482.
> 
> This is mythbackend version (deb-multimedia Jessie):
> 
> # mythbackend --version
> Please attach all output as a file in bug reports.
> MythTV Version : ad97d24
> MythTV Branch : fixes/0.27
> Network Protocol : 77
> Library API : 0.27.20141016-1
> QT Version : 4.8.6
> Options compiled in:
>  linux profile use_hidesyms using_alsa using_jack using_oss
> using_pulse using_pulseoutput using_backend using_bindings_perl
> using_bindings_python using_bindings_php using_crystalhd using_dvb
> using_firewire using_frontend using_hdhomerun using_ceton using_hdpvr
> using_ivtv using_joystick_menu using_libcec using_libcrypto
> using_libdns_sd using_libfftw3 using_libxml2 using_lirc using_mheg
> using_opengl using_opengl_video using_qtwebkit using_qtscript
> using_qtdbus using_taglib using_v4l2 using_x11 using_xrandr using_xv
> using_profiletype using_mythlogserver using_bindings_perl
> using_bindings_python using_bindings_php using_mythtranscode
> using_opengl using_vaapi using_vdpau using_ffmpeg_threads using_mheg
> using_libass using_libxml2
> 
> Anyone have similar devices and kernel?
> 

Check your kernel logs (dmesg, /var/log/syslog|messages, journalctl -b0)
and see if it is throwing errors about firmware loading

Regards
Stuart