I want to use dual monitors, but only one “unknown display” appears in the settings, not two.
I also get the error when I run xrandr.

I don’t see any additional drivers, I think it’s because it’s built-in graphics.
I have two monitors connected to a PC, one via DP and one via HDMI.
Both monitors are mirroring the same screen right now.
I’ve checked the bios to see if I’ve enabled embedded graphics. It’s a Gigabyte motherboard.

I got the gpu info on system settings -> llvmpipe (LLVM 12.0.0, 256 bits)


xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected primary 1920×1080+0+0 0mm x 0mm
1920×1080 77.00*

uname -a

Linux leekki 5.15.0-91-generic #101~20.04.1-Ubuntu SMP Thu Nov 16 14:22:28 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

glxinfo | grep “OpenGL renderer”

OpenGL renderer string: llvmpipe (LLVM 12.0.0, 256 bits)


Update graphics drivers : Failed

sudo ubuntu-drivers autoinstall : No drivers found for installation.

sudo vi /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash i915.force_probe=a780 $vt_handoff” :Nothing happeneddd

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