7.95.1 BETA - 8.1.1: [Technotrend TT-connect CT-3650] dvb no signal after upgrade

  • Hi,

    Upgraded from 7.90.010 to 7.95.1 yesterday and my dvb device (Technotrend TT-connect CT-3650) stopped working. No signal on all frequencies. A downgrade to 7.90.010 solved the problem.

    I assume we have an issue with the linux kernel (4.9.0 vs 4.9.3). dmesg output is a bit different and there are changes in the dvb subsystem. Although, I cannot pinpoint the problem.

    Full log in gC8BpEfG


    Edited once, last by tcamargo ().

  • Hi,

    Problem persists in 7.95.2.

    1. Bus 001 Device 003: ID 0b48:300d TechnoTrend AG TT-connect CT-3650 CI

    Edited once, last by tcamargo ().

  • dmesg is different..

  • Any way to disable media_build modules in runtime? I tried to rmmod dvb* and then insmod the vanilla versions by hand, but kernel complained about unknown symbols. Probably missed some dependency.


    Edited once, last by tcamargo ().

  • Oops, I forgot that there are other platforms... :)

    Anyway, it's easy to compile it without media_build. Just edit the project options file.

  • Thanks, CvH!

    LibreELEC-Generic.x86_64-7.95.3-mb_without.img.gz - Good!
    LibreELEC-Generic.x86_64-7.95.3-mb_latest.img.gz - Bad!

    Edited once, last by tcamargo ().

  • could you provide an full dmesg | paste (of the working version) ?

    I have not really an idea what commit is the cause of this issue.

  • No luck...

    LibreELEC-Generic.x86_64-7.95.3-allyes-patch.img.gz - don't work
    LibreELEC-Generic.x86_64-7.95.3-allyes.img.gz - don't work
    LibreELEC-Generic.x86_64-7.95.3-latest-10.2.img.gz - don't work

    Where can I find the source for LibreELEC-Generic.x86_64-7.95.3-mb_without.img.gz?


  • mb_without uses normal LE8 without media_build -> kernel 4.9.0 dvb drivers
    everything else is using media_build in different version, per default we deliver ~kernel 4.10rc1 dvb drivers

    so it is broken somewhere between 4.9 and 4.10rc1 :( no idea where to look for as i don't find a change at all that change anything for this card