AOC 1440p monitor with HDMI 2.0 not working right

On 17.2 Pro here and my new 34" AOC 1440p monitor is being recognized only as a 23" and is stuck at 1080p for some reason and it wont let me go to 1440p or change a single setting. I'm running this on a Mini PC with Intel non ARC graphics.Is this yet another Wayland bug with no fix? I hope someone has a fix to this, thanks.

Thank you for providing some useful information. I am aware of AOC monitors, as I was recently doing extensive monitor research, so that I could buy a new monitor. Thank you for admitting that you are on Wayland, that would be the very first thing I would change, and switch to X11.

Now, you've switched to X11, still having the same issues? If you answer yes, then the next thing to try, is another HDMI cable, unless the cable you are using, was shipped with the monitor, then it should be fine. (unless defective!)

You've established this is a full Intel system, which means it doesn't use Nvidia graphics. Having said that, you still have display management settings. And one of the things that Linux does sometimes, is choose the wrong refresh rate for the monitor, which will indeed cause problems.

You didn't mention what refresh rate your monitor uses, so I am going to quickly look it up. OK, looks like its a 34" curved 1440P monitor that uses a 165-hertz refresh rate. In :gear:Settings :gear: Displays, make sure that the refresh rate listed, matches your monitor.

Also, its important to make sure that your new display, is being set as the "Primary Display".

Also, you stated that your Intel GPU is non-arc, which suggests it might be one of the previous Intel 6000 I think it was called CPU.GPU. I don't believe there is a proprietary driver for those integrated GPU's, but should already be in the kernel, especially an older one like that, that predates ARC.

OK, thats all I got for you right now, I surely hope something I said works, and helps you out!


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Could be. You should simply test it with switching to Xorg and look if it works.

Besides that: With ''Intel non ARC graphics'' do You mean an integrated Intel CPU Graphics?
And You wrote that Your Monitor has HDMI 2.0. Does Your Mini PC have that, too? And do You have an HDMI Cable what supports that?

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Thanks for the tips, tried them all and nothing. Actually I already knew about the switch over to X11 and it was the first thing I did, and still nothing. There was simply no way to adjust anything, it was static when going into display settings, nothing was able to be changed from resolution to refresh rate. I finally gave up on it and tried Ubuntu itself, still the same issue. I'm now positive it's the mini PC and not the OS. Sending it back today and trying another one. Thanks for the response though, it's appreciated.

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As I stated in my last response, it was/is the PC itself, not the OS, guess it was another buggy piece of Chinese garbage that Amazon loves to shovel on folks, will try a better brand like Beelink and it's ilk and see if they are any better. Thanks for trying to help out , it's appreciated :slight_smile:

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Why not get an Intel Nook?

https://www.amazon.com/ASUS-Barebone-i3-1315U-ThunderboltTM-Bluetooth/dp/B0D92V2B8G/ref=sr_1_5?crid=1KXJO0LJ00DAX&dib=eyJ2IjoiMSJ9.215KWoQNNKC1Xc4eO6cteKxAMgCjpcmL_vvpCWov7rDCCVtPguy8t9f9jLXgUNYrzpAJacze461aRCcSqZAdzJbpDrOPJaSA181kB-IfYlg8VL7hCxo5oKpi7hZUEje_fMrFFLN9PyZeiS0RSDei83LnxqKjINrYREePcYdnatqVvsxhp2fkBoqyjXvAf39ZWoFfprZlzhKvwgudyqfM8HdPJOACj08v-xOagIera8E.E8o-Ucd024OB-ah7VB1ox2pbBzzxhDFw7FL1aQl6LcI&dib_tag=se&keywords=Intel%2BNook&qid=1736953881&sprefix=intel%2Bnook%2Caps%2C179&sr=8-5&ufe=app_do%3Aamzn1.fos.5998aa40-ec6f-4947-a68f-cd087fee0848&th=1

I may not be an expert on mini computers, but based on the quick specs check I just did, this looks like a fine machine. The only thing that I found odd, on such a modern machine, why no display port? Its got 2-HDMI ports on the back of it, but it also has 2 USB-C thunderbolt 4 ports too.

I picked the Core I-7 CPU, because I feel that you would enjoy the performance. And its also got an amazing 64GB of system RAM, so if you decide to play around with a couple VM'/s, you got the RAM for it, for sure. In regards to GPU, it uses Intel Iris Xe Graphics.

  • Multi-Monitor Support: Connect up to one 8K or quad 4K@60Hz displays with dual HDMI and dual DP via Thunderbolt 4 Type-C ports for a variety of digital signage and display usages