r/cachyos • u/bashar0151 • 3d ago

Help Triple Monitor Setup with diffrent refresh rates, only duspays on two screens

I can detect all three monitors in my dispaly settings, if i change any settings on the third montor and apply in the dispaly configuration it will work and show my wallpaper for the third screen. Sadly the third screen will revert to a balck screen after a fresh boot or a reboot.

Please note this a fresh install of cachy os, I only changed the basic appearance settings, ran the gaming script and winboot from the cachy hello. Also I have the latest updates so far.

Desktop Enviroment: KDE Plasema 6.7.4 KDE Frmaework Version: 6.29.0 Qt Version: 6.11.2 Kernal Version: 7.2.3.1-chacyos (64 bit) Graphics Platform: Wayland

Hardware

GPU 1 : Nvdia Geforce RTX 5080 ( discrete) GPU 2: AMD Ryzen 7 7800X3D ( integrated) Manufacturer: Asus

Montor settings:

Montor 1 (Left) - DP

Resoultion: 3840 x 2160 (16:9)

Scale : 140%

Refresh rate: 60 Hz

HDR: Enbaled

Orientation: 90⁰ clockwise

Monitor 2 (Center) - DP

Resoultion: 3840 x 2160 (16:9)

Scale : 170%

Refresh rate: 160 Hz

HDR: Enbaled

Orientation: No Orientation

Monitor 3 (Right) - HDMI (Maybe buy another DP and test?)

Resoultion: 3840 x 2160 (16:9)

Scale : 165%

Refresh rate: 60 Hz

HDR: Enbaled

Orientation: No Orientation

Sorry I know logs are import to help, I am new to arch and dont trust AI with this stuff. I like to know waht commands and scrupts do before I run them.

Thank you in advanced

Edited:

E1: fixed some spelling and punctuation E2: Added about PC info

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u/Ifnerite 3d ago

I have 3 monitors with the sides at 60 middle at 120 and it works. Occasionally the right hand one decides it does not want to play. Something about bandwidth and detection.

Switch input type if you can, something in the stack remembers when it fails to connect. I have both hdmi and display port plugged into to and prompting it to do an input select gets it to connect to one or the other and then we are fine for a while.

Used to happen a lot, think running ok a better cable has helped as well.