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

tcamargo · February 28, 2017 at 10:50 PM

Might help other users. LibreELEC 8.0 Generic without media_build.

Dropbox - LibreELEC

Working with my Technotrend TT-connect CT-3650.

**CvH** · March 1, 2017 at 7:50 AM Official Post

Quote from tcamargo

Working with my Technotrend TT-connect CT-3650.

were you able to track down which commit breaks the dvb device ?

tcamargo · March 2, 2017 at 10:33 AM

Quote from CvH

were you able to track down which commit breaks the dvb device ?

not yet.

tcamargo · March 3, 2017 at 2:02 AM

Well.. some progress...

I could not determine a correspondence between media_build and linux kernel trees. I decided to disable media_build and try to pinpoint the issue directly in the kernel tree. Following CvH directions about the problem being between 4.9.0 and 4.10rc1, I compiled a LE8 image with linux 4.10. To my surprise, my dvb device is working with this image!
# uname -aLinux liessa 4.10.0 #1 SMP Thu Mar 2 22:13:49 BRT 2017 x86_64 GNU/Linux dmesg
gOaY
Changes:

remove unclean patches (i915, eMMC, strange HDMI-AUDIO device)
default answers for make oldconfig
cherry-pick c23c406f0d58ad35dddcf84bff7aead47a015982 (xf86-video-nvidia patch for kernel 4.10)
cherry-pick 8d3956f72d79ea3648b19f4c705a38307bb03efb (xf86-video-nvidia-legacy patch for kernel 4.10)

It's newer than 4.10rc1 but older (I think) than the other images I tested. I have a feeling it is something related to mb (out of tree build?)... if you have clue where to look, please, let me know.

**CvH** · March 3, 2017 at 6:38 AM Official Post

could you try to build kernel 4.10-rc1 (you need to change the url to testing) ? there should be the error too, if not the used drivers for MB has some problem

Quote

*)
PKG_VERSION="4.10-rc1"
PKG_URL="https://www.kernel.org/pub/linux/kernel/v4.x/testing/$PKG_NAME-$PKG_VERSION.tar.xz"
PKG_PATCH_DIRS="default"
;;

tcamargo · March 3, 2017 at 1:29 PM

No problem with LE8, without MB, and kernel 4.10rc1.

dmesgIZZF

Seems a problem with MB.

**CvH** · March 3, 2017 at 1:40 PM Official Post

Quote from tcamargo

Seems a problem with MB.

yes ... Ill try to build something recent, maybe the error disappeared at newer versions

tcamargo · March 3, 2017 at 1:49 PM

Any idea about any debug options I can enable in the dvb modules?

tcamargo · March 23, 2017 at 1:37 AM

Quote from CvH

yes ... Ill try to build something recent, maybe the error disappeared at newer versions

any update?

Thanks!

tcamargo · May 27, 2017 at 12:41 PM

Still no luck with 8.0.2. LE is using ME sources from January, but I test it anyway.

My adapter is working fine without MB in 8.0.2.

**CvH** · May 27, 2017 at 12:52 PM Official Post

Quote from tcamargo

My adapter is working fine without MB in 8.0.2.

it isn't directly connected to media_build (mb just allows to use drivers from much newer kernels at older ones) - the adapter is "just" broken for Kernel >4.10

You could test the current LibreELEC Testbuilds for x86_64 (Kodi 18.0) if it works or not.

tcamargo · June 2, 2017 at 12:17 PM

Hi CvH,

Quote from CvH

it isn't directly connected to media_build (mb just allows to use drivers from much newer kernels at older ones) - the adapter is "just" broken for Kernel >4.10

You could test the current LibreELEC Testbuilds for x86_64 (Kodi 18.0) if it works or not.

I thought the same, but I create some LE images with kernel 4.10 on March and they worked.

Quote from tcamargo

No problem with LE8, without MB, and kernel 4.10rc1.

dmesgIZZF

Seems a problem with MB

I will build a LE8 image with kernel 4.11.3, same used in the test builds, and let you know.

Thanks!

tcamargo · June 4, 2017 at 8:40 PM

Good and bad news..

Good: my adapter is working properly with kernel 4.11.3

Bad: i still don't know why it does not work with media_build

**CvH** · June 7, 2017 at 10:10 PM Official Post

Quote from tcamargo

Bad: i still don't know why it does not work with media_build

I quickly looked through the different commits and didn't found something obvious, I could do a "special" build to try something out.

(compiling takes a while)

tcamargo · June 9, 2017 at 12:30 PM

Quote from CvH

I quickly looked through the different commits and didn't found something obvious, I could do a "special" build to try something out.

(compiling takes a while)

Thanks! If you have the source code available somewhere I can build it myself...

**CvH** · June 9, 2017 at 2:37 PM Official Post

LibreELEC-Generic.x86_64-8.0.2-TT3650-test-tbsofficial.img.gz

it is just an different driver package, if this is not working I build some other so we can rule out if it is a media_build or a driver used from media_build problem.

tcamargo · June 13, 2017 at 1:06 PM

Thx! Only saw it today. I will test it as soon as I get home.

tcamargo · June 14, 2017 at 2:05 AM

Quote from CvH

LibreELEC-Generic.x86_64-8.0.2-TT3650-test-tbsofficial.img.gz

it is just an different driver package, if this is not working I build some other so we can rule out if it is a media_build or a driver used from media_build problem.

Working!

Code

liessa:/usr/lib # modinfo dvb_usb_ttusb2
filename:       /lib/modules/4.9.29/updates/dvb-usb-ttusb2.ko
license:        GPL
version:        1.0
description:    Driver for Pinnacle PCTV 400e DVB-S USB2.0
author:         Patrick Boettcher <[email protected]>
srcversion:     B884E2F721B478F3BECF7DE
alias:          usb:v0B48p3009d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0B48p300Dd*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0B48p3006d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v2304p0222d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v2304p020Fd*dc*dsc*dp*ic*isc*ip*in*
depends:        dvb-usb,rc-core,dvb-core
vermagic:       4.9.29 SMP mod_unload 
parm:           debug:set debugging level (1=info (or-able)). (int)
parm:           debug_ci:set debugging ci. (int)
parm:           adapter_nr:DVB adapter numbers (array of short)

Display More