@jochen02 or anyone else. Can you try this test build:
https://mega.nz/file/g9x1GApJ#SQlsjz2piN2YpNjd8zg2zsyoSIJ89l84oI-hm2OhFUg
EDIT: mpeg2 playback seems to be broken in this build. But at least check if it oops too.
# uname -a
Linux odroid 4.9.113 #1 SMP PREEMPT Sat Jun 20 12:06:56 CEST 2020 aarch64 GNU/Linux
And no, it doesn’t work.
DVB drivers from latest kernel: activated
Crazy Cat drivers: deactivated
dmesg: http://ix.io/2pEO
Reboot after deactivating DVB-T driver addons: http://ix.io/2pEQ
DVB-T works but without the 2nd receiver of the Hauppauge stick.
For my understanding: With activated “DVB drivers from latest kernel” the kernel driver will be dynamically loaded when the particular DVB-T stick is recognized? Should the problem research not focus on the driver package (the addon)?
The addon has not changed since over a year.
Ok. Is it still under development or is it an orphaned addon?
May be kernel 4.9.190 with CoreELEC 9.2.3 seems to be worth a try?
Why does 9.2.3 come with an older kernel as 9.2.1? Or is that an error in kernel versioning of the CoreELEC development team?
Because somewhere last year there was a decision by CoreELEC developers to use pure AML Android Kernel. Which fixed a lot of playback issues and made generic S905x2(3) and S922X possible.
Hardkernel kernel is a bit messy and very HK Products specific.
I suspect though that the fix is hidden there somewhere. They pull in lts changes from mainline which explains why the minor version was higher.
I was no longer part of CE back then but it’s how I understand the reasons about the switch. Maybe a CE dev can correct me if I am wrong.
Thank you for the information.
I hope users of not so usual DVB-T2 sticks are not fucked up now.
Looks like only this usb tuner is affected so far.
@jochen02: Can you please try https://mega.nz/file/J5RhSAYD#0KgTEpUNlPrqnu8jJmw-3TBSYqPooZ5f0j4-tMmmsb4
It is 4.9.228 kernel. Yet still with some broken mpeg2 decoder but thats just for a quick test. I can fix the rest later. Probably lots of bugs inside but it’s only relevant to see if the oops happen.
CoreELEC (community): devel-1592731237 (Amlogic-ng.arm)
Linux odroid 4.9.228 #1 SMP PREEMPT Sun Jun 21 11:19:22 CEST 2020 aarch64 GNU/Linux
Without activating driver addons: http://ix.io/2pLy (DVB-T not working).
With “DVB-T drivers from latest kernel”: http://ix.io/2pLA (DVB-T not working).
With “Crazy Cat”: http://ix.io/2pLC (DVB-T not working).
So even a more lts kernel is not working. I guess I don’t know anymore why it is working with 9.2.1
@jochen02 Next try:
https://mega.nz/file/94QVXK7R#unllz-RaaUkNJAD9Y2lAmc74KdZ6IFAFvu7srPDZRhc
This is again non-lts kernel.
I tried to search for the hardware but it looks like it is not available anymore anywhere. So any idea how to solve it? Maybe you @jochen02 want to provide your hardware for fixing the issue?
@jochen02: Next try please:
https://mega.nz/file/d8YA2QhQ#lx42quu1MAWsYZ48s76ir6THuDZIrs15aNVMO9nE9qg
Sorry, I cannot provide it. The server provides TV for the whole family. They would kill me if they don’t have entertainment any more. 
Try it here:
It’s called “sports edition” but it’s the same hardware.
Even Hauppauge still sells it:
https://www.hdpvr2gaming.com/product.sc?productId=70&categoryId=1
I don’t think a developer should buy hardware he cannot even use @Portisch.
We will make 2,3 tries and then we just leave it be.
Ok.
But giving away the hardware makes no sense for me. If I don’t have this hardware any more I don’t need a fix.
Lol nobody asked you to give it away. I think he meant to borrow it. Do the tests with the builds please if you find some time.
Can’t expect people to buy hardware you use.
Correct, it’s not a give away. It’s just for debugging and maybe the issue can be solved. It’s on you if you want to have the tuner usable or not. As Ray said already without hardware it’s not possible for us to identify the reason for the issue. Feel free to contact me for a delivery address in Germany.
It’s not been my idea. I don’t expect it.
This is what happens to dvb hardware, support is dropped after a few years and your precious tuner becomes a paperweight - or you get trapped on an old version of Kodi until you decide its time to upgrade. Its happened to us all.
Thats why I now use SAT > IP, because I got trapped on a old version of Javis for two years when media build dropped support for my dvb-sky tuners.
Shoog