DVB-C card not detected anymore after switch from F10 to F12

[Bernd Bartmann]

Hi,
mMy VDR server has 2 DVB-T (Hauppauge NOVA-T) cards and 2 DVB-C
(Terratec Cinergy 1200-C) cards. All 4 cards were detected and running
fine on F10 fully updated. As F10 goes EOL I reinstalled the system
with F12 and now only the 2 DVB-T cards are detected. There is no hint
in dmesg why the 2 DVB-C cards are not found anymore.

The weird thing is that on another system that now also has F12 on it
an identical DVB-C card is detected correctly.

Could it be that F12 has a build-in limit for 2 DVB cards? Or could it
be a problem in PCI device detection?

Any ideas how the DVB-C cards could be re-enabled again?

Best regards,
Bernd