Brightness not working

Linux Mint
1

The following is a part of the result of the command inix -Fxz

Graphics:

  • Device-1: Intel Skylake GT2 [HD Graphics 520] vendor: Hewlett-Packard*
  • driver: N/A bus-ID: 00:02.0*
  • Display: x11 server: X.Org v: 1.21.1.4 driver: X: loaded: intel,vesa*
  • unloaded: fbdev,modesetting gpu: N/A resolution: 1366x768~76Hz*
  • OpenGL: renderer: llvmpipe (LLVM 15.0.7 256 bits)*
  • v: 4.5 Mesa 23.0.4-0ubuntu1~22.04.1 direct render: Yes*

I did’nt find any way to manually install an intel graphics driver since it is told it comes with the kernel.So I downgraded to my old kernel still the problem exists.Any fix?

2

Solved it!
Open grub configuration file :
sudo nano /etc/default/grub

Add “i915.modeset=1” to the line:
GRUB_CMDLINE_LINUX_DEFAULT=“quite splash i915.modeset=1”
Ctrl+X
Ctrl+Y
Press enter

To update with new grub configuration file:
sudo update-grub

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