I have an Acer XV340CKP monitor connected via Display Port to my GPU. I also have a old LG W2253TQ that I use as a secondary display. It only has a DVI and VGA port. I have a DVI-DVI cable together with a DVI-Display Port converter to connect to my GPU, which is an Asus RX6900XT. I am running Nobara 38.

I have observed that if I were to have my Acer monitor powered when I switch on my desktop, all the monitor buttons do not respond. None of the menu buttons, not even the power button responds. When I switch off the desktop, the monitor stays on. The only way to power it down is to unplug the power cable.

However, if I were to only have the LG monitor powered when I switch on my desktop, all the buttons on the Acer monitor works.

I believe everything was working previously in Nobara 37. I think this issue probably started happening in the recent month or two.

Is this even possible, where the graphics card sends a malformed signal to the monitor and prevents the buttons from working?

  • root@aussie.zoneOPEnglish
    2·
    11 months ago

    So I decided to bite the bullet and did a fresh install of Fedora 39 and that appeared to have made the issue go away. In the process of installing updates and configuring it the way I like, the monitor control buttons on both monitors response. So, it seems like the cause of the issue could have been a glitch during an update. Who knows? At least I know that it’s not a hardware issue (cross finders). :)