TBSDTV Community Forum

or fx2 firmware (uploaded by driver on cold start)

maybe some new Cypress FX2 revision

Ok, look like this hw limitation - 22khz wired only from first demod from each si21832 dual demod chip.
si2183 frontend driver set 22khz tone and send diseqc cmd for each demod instance

both tuners can send diseqc cmd

upstream media_build discontinued - https://git.linuxtv.org/media_build.git

you can use native TBS blindscan (disable HWControl in streamreader.ini)

device detected as DVB-T/T2, but you can scan DVB-C (SR autodetected)

alternative is dev_streamreader interface for AltDVB 2.4 - https://www.altx.ro/forum/viewtopic.php?t=61

try combined dvb-t/t2/c driver
https://www.tbsiptv.com/download/tbs622 ... .0.1.2.zip

only classic ATSC/QAM

sudo apt-get install --reinstall linux-modules-5.15.0-47-generic
sudo apt-get install --reinstall linux-modules-extra-5.15.0-47-generic