When I use multiple monitors I get a range of odd behaviours, including a white screen, lock ups, failure to display anything on second screen. I've unplugged the second screen for now and all is OK except that adaptive sync does not work properly.

Sounds like a driver problem. What kernel are you using, and have you tried running Mesa-git?

When I set adaptive sync to "Always" in the settings the screen sort of flickers when I move the mouse. To be more precise the screen gets a bit brighter when the mouse is moved, then returns to previous slightly dimmer brightness when the mouse is stopped. There are no errors that I've found.

You can't find any errors because there are none. The brightness changing with the refresh rate is sadly how most monitors work today, and can't really be fixed. It's the whole reason for why adaptive sync is not set to always by default.

Why doesn't automatic work for you though?

I have the same gpu (and intel 8700K)

I got audi running to my monitor which then sends it to my speakers, in mint its stuttering and tertible, but smooth as silk on windows.

It runs fine though, in terms of games (only tested CSGO though) in 144hz. Not entirely sure about other features (freesync etc)

I had to update the kernel to get multi monitor and proper resolutions to work

I have the same CPU and GPU.

Adaptive sync issues were fixed by kernel 6.4 for me. Before that the display would flicker and timeout every 10 minutes or so. There’s another issue caused by 6.4 where the VRAM doesn’t clock up though. Can be fixed by switching the refresh rate when a load is on the GPU. It’s been a rough time using this GPU with Linux.

Try 6.4 and see if it fixes your display issues. I’m using the release candidate kernel on silverblue rawhide.

Try different a DE like GNOME and see if the issue occurs again. I'm running perfectly with a Radeon 6700XT on GNOME with Wayland.

Well, most (if not all) freesync monitors flicker when the frame rate changes. You are probably jumping from 48 to 120 or similar. You can use freesync only for fullscreen apps on kde plasma if that works for you.

I have an AMD 5600H and I'm using dual screen (dell 24 1920x1200 and dell 22 1920x1080) and MX Linux 21.3 AHS Xfce, and never ever had a problem with displays. I even sometimes add a 3rd screen on USBC (a small 1024x600) and everything works fine.

I’ve been considering upgrading from my gaming laptop (intel/nvidia) with a secondary monitor to a monstrously specced out Thelio Major with a Ryzen 9 and RX7900. I have more money than time to build, I like the idea of coreboot and supporting system 76 as a company.

I’ve dealt with a slew of multi monitor issues already and my big hope for this new machine (aside from it being a gaming rig with some longevity spec wise) was that most of these display issues would be a thing of the past.

Reading this has me feeling a little crestfallen. Is this what I should expect from newer team red components? I usually run EndeavourOS and would probably install it before even booting Pop! which I’ve used and don’t really care for.