If you are using a device from an OEM, the recommendation is to download and install the drivers from the manufacturer's website.
This is to avoid loosing any special features or settings provided by them while using the generic drivers from Intel®.
If you would like to confirm you are getting the proper drivers, you can manually install them, here you can find out how:
thanks for your kind reply!
As I said, I have a problem with the hardware acceleration.
The problem only occurs with the browser firefox if it is enabled. Otherwise I have no video issues and no other problems.
Do you have an idea how I can find out whether it is a hardware or software problem?
If there is more of a HW problem I have to send the computer for repair.
I would like to avoid this.
Thanks for your time!
After doing some research, I found out this could be an issue directly with the browser, this seems to be present in different platforms, for that reason you could say it is software issue.
By any chance have you looked for updates on this browser? or you could also test the system with a previous version of it.
Some related links: