T410 (Intel HD): No DisplayPort Audio in Windows 11

[CdCt]

Hello,

I connected my T410 to our AV-Receiver (DENON AVR-540BT) with a HP DP to HDMI Adapter
and there is no sound... The Receiver shows up in the Device list, but if I click 'test speaker', you could hear nothing, altough the bars become green. I installed the Conexant Audio Driver and still nothing happens.

On the next day I installed the DTS-X app from the M$-Store and the sound worked for the first time... But as I exspected, after I turned the Notebook off and booted it a few hours later again, there is no sound...

Is that a known problem? How could I fix that?

[TPFanatic]

I would check that the Intel HD Graphics driver is the most possible up to date version.

[CdCt]

I would check that the Intel HD Graphics driver is the most possible up to date version.

I have no clue where I should download them... the intel website is confusing as hell