2nd Monitor isn't being detected and low Screen Resolution

matteodev · n00b Joined: 07 Apr 2021 Posts: 6

I installed Gentoo today but the screen resolution is very low (1024x768) but my monitor supports 1920x1080@60Hz. The other monitor is just black and isn't being detected by X and the OS. Tried reinstalling the drivers. I am using a AMD Radeon RX 580 8GB VRAM, The main monitor is using DisplayPort and the 2nd one is using DVI.

NeddySeagoon · Posted: Sat Oct 02, 2021 9:52 am Post subject:

matteodev,

You will need an xorg.conf.d/ fragment to describe how your displays are positioned.
Also I suspect that you are not using the graphics driver you think you are. Make friends with wgetpaste and put your entire Xorg.0.log file onto a pastebin.

Depending on how you installed Xorg the log will either be in /var/log or somewhere in /home/<user_name>

Its too big to fit into a post. The Radeon RX 580 should use the amdgpu driver.
The amdgpu driver is in several pieces. A kernel piece, linux-firmware, the Xorg driver and the radeonsi code for mesa. You need all the pieces assembled in the right order.

The log will show what actually happened when Xorg started.
_________________
Regards,

NeddySeagoon

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