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and you can have a try with this package :
1. kernel version >5.8.0-44
2，wget https://www.tbsdtv.com/download/document/linux/media_build-2021-06-07-i915.tar.bz2
tar xjvf media_build-2021-06-07-i915.tar.bz2
cd media_build
./install.sh
reboot

Thanks

Kind Regards

steven

Hi CrazyCat,Hi Steven,

I managed to install the drivers for my dvb cards on Ubuntu 20.04 with your help
Thank you both

steven Wrote:wget https://www.tbsdtv.com/download/document/linux/media_build-2021-06-07-i915.tar.bz2
tar media_build-2021-06-07-i915.tar.bz2
cd media_build
./install.sh
reboot

The 2nd line should be

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tar xjvf media_build-2021-06-07-i915.tar.bz2


Hi Steven,

Inadvertently,at an update to Ubuntu 20.04,a new kernel was installed,the one in the pic.I installed kernel 8.5.0-44(and the others old kernel),the one recommended by you,but unfortunately,when I want to use it on Ubuntu,the system hangs.
But before posting here and asking for your help,I tried all sorts of tricks to install the card driver so that the graphics resolution doesn't change.Because of this I lost a few days,unfortunately without the desired result.
t would be easier for me to install Ubuntu 18.04 and then everything would go smoothly.But I am stubborn to believe that a new problem(kernel),new solutions must be found.Maybe you have one... Thanks

@ steven

Seems that the problem is still existing.

I cannot adjust the brightness again.

Have tried to install http://www.tbsdtv.com/download/document ... 07.tar.bz2 on my system.

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$ uname -a
Linux E535ubuntu 5.11.0-27-generic #29~20.04.1-Ubuntu SMP Wed Aug 11 15:58:17 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Eventually I installed the 5.4.0-81 kernel and that's how I solved the problem.
Of course this problem will remain whenever a new kernel version for Ubuntu 20.04 appears.That's why TBS team should take this into account,especially that not all users know how to avoid such a problem.

Well, my workaround is GRUB2. At the start I just select a previous kernel when I want to work without DVB equipment ...

I finally managed to install the tbs card drivers with the latest kernel,5.8.0.63,on Ubuntu 20.04
First time I installed the tbs drivers,after Steven's link(above),and then I installed the latest version of the graphics card driver,in my case,Nvidia.After restarting,the resolution returned to normal,1920x1080 (16: 9).
It may be a simpler solution than the one I applied,but I do not know?

No, this does not work for me.

I have a GPU AMD ATI Radeon HD 7640G and there is no chance to use the driver from https://www.amd.com/de/support/apu/amd- ... n-hd-7640g with Ubuntu 20.04 ...

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error: Detected X Server version 'XServer 1.20.11_64a' is not supported. Supported versions are X.Org 6.9 or later, up to XServer 1.10 (default:v2:x86_64:lib32:XServer 1.20.11_64a:none:5.11.0-27-generic:)
Installation will not proceed.

So I have to wait until TBS fixes this very annoying bug which has nothing to do with graphics driver ...

Alternative media_build install in extra branch

kernel media modules not removed, so GPU DRM modules loaded with cec and rc-core support (from initramfs)
new media modules (CEC and RC core disabled) installed in /lib/modules/$(uname -r)/updates/extra - this priority dir for depmod

So DVB adapters work (including DVB USB), GPU DRM drivers also. Tested with Kubuntu 20.04 with 5.4, 5.8, 5.11 kernels and Debian 11 with 5.10 kernel.

P.S. Instal cmds sequence for noobs Most tricks in install.sh script.

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git clone https://github.com/tbsdtv/media_build.git -b extra
git clone --depth=1 https://github.com/tbsdtv/linux_media.git -b latest ./media

cd media_build
make dir DIR=../media

./install.sh