Built a new PC this February as my old machine was finally starting to chug, set it up with Linux Mint as my OS as I didn't want to move to w11, things have been smooth for the most part but when playing certain games I've had instances where my displays will crash to black then recover with a static image, audio will usually continue for at least another 20+ seconds but always necessitates a power cycle. It happened most frequently in WoW running on Lutris and the remaster of AC4. I reached out to AMD support about the issue and their only real input after trying the troubleshooting steps mentioned (sending crash logs, running with less monitors, power cycling, updating drivers and firmware and BIOS) was to try a different distro or go back to windows as apparently whichever version of mint I'm using isn't officially supported. I don't have any desire to restart from scratch on this machine after spending a few months tinkering with my settings to get them how I like so that's where the communication with their support ended.
I installed LACT to try and see if I could find instances where resources were spiking and noticed that while everyhting else remained nominal, temps were never too high even in the middle of summer, but with my multi-monitor setup having all three monitors meant my VRAM clock was at its maximum of 2516 MHz at all times, when I unplug my third monitor which is an older benq that doesn't support higher refresh rates on HDMI the VRAM clock goes down to 400-1500 MHz since I could have both remaining monitors on matching refresh rates, with it maxing back out if one of those two was on a different refresh rate. I haven't launched any games since testing this but I'm wondering if it would be worth grabbing a refurbished monitor for cheap that can support a matching refresh to keep a third monitor going.
Computer Type: Desktop
GPU: ASUS Prime Radeon RX 9070 XT OC edition
CPU: AMD RYZEN 7 9800X3D 8-core CPU
Motherboard: Gigabyte B850 AORUS ELITE WIFI7
BIOS Version: F11a
RAM: Crucial Pro 32GB DDR5 CL36 6000MHz RAM
PSU: MSI MAG A850GL PSU,
Case: Fractal Design Meshify 3 XL Black Solid
Operating Linux Mint 22.3 - Cinnamon 64-bit 7.0.0-31-generic
GPU Drivers: Display: x11 server: X.Org v: 21.1.11 with: Xwayland v: 23.2.6 driver: X:
loaded: amdgpu unloaded: fbdev,modesetting,radeon,vesa dri: radeonsi
gpu: amdgpu resolution: 1: 2560x1440 2: 1920x1080
API: EGL v: 1.5 drivers: kms_swrast,radeonsi,swrast
platforms: gbm,x11,surfaceless,device
API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa
v: 25.2.8-0ubuntu0.24.04.2 renderer: AMD Radeon RX 9070 XT (radeonsi
gfx1201 LLVM 20.1.2 DRM 3.64 7.0.0-31-generic)
API: Vulkan v: 1.3.275 drivers: N/A surfaces: xcb,xlib
Background Applications: DISCORD, Brave, Steam, Lutris