Hello @pjonez
Thank you for taking the time to post on the StarTech.com Community!
The hotkeys do not need to be pressed at the same time, each key should be pressed sequentially within 2 seconds of the last key. So for the combination you mentioned, it would be [Scrl Lk], then press [Scrl Lk] again, and then [Q].
If the audio through SV211KDVI is not working, please make sure you are using the DVI/Audio&Mic combo cables we include with the KVM to connect the computer’s audio output to the KVM as standard DVI cables will not transmit audio. Also I would recommend checking that your computer’s sound settings are set to the correct output device for the ports the combo cable connects to.
If you need any further assistance, please feel free to contact us again.
Lukas T