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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Noticed a strange occurrence where my monitor buttons will not react to presses when certain conditions are met (aussie.zone)

submitted 11 months ago by root@aussie.zone to c/linux@lemmy.ml

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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?

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[–] root@aussie.zone 2 points 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). :)