Ubuntu 22.04 screen flickering on DELL 5480

Question

I've installed a Ubuntu 22.04 server on my DELL 5480 but now the screen is flickering incessantly.

lspci | grep VGA

VGA compatible controller: Intel corporation Skylake GT2 [HD Graphics 520] (rev 07)

Is it possible to update the driver or is there another solution ?

You can always search for your model [here](https://www.dell.com/support/home/en-in/drivers/driversdetails?driverid=3pmv4) and download the drivers on that webpage. — Rishon_JR, Feb 18 '23 at 12:44
@Pilot6 Dunno. Actually the flickering occurs in terminal mode (install + starting + login). After `startx` is being launched (desktop mode) the flickering stops. — Duddy67, Feb 18 '23 at 12:59
Add `startx` to your startup applications (If you don't know how to do that, follow this [article](https://www.maketecheasier.com/manage-startup-applications-ubuntu/)) — Rishon_JR, Feb 18 '23 at 15:39

score 0 · Accepted Answer · answered Feb 21 '23 at 05:41

I finally found the solution thanks to this post.

Edit the grub file:
sudo vim /etc/default/grub

Add the following values to the GRUB_CMDLINE_LINUX_DEFAULT parameter:

GRUB_CMDLINE_LINUX_DEFAULT="i915.enable_dc=0 intel_idle.max_cstate=2"

sudo update-grub

Reboot

Now the flickering is gone.

1 Answers1