===== Display Issue After Updating the Kernel =====

{{template>:meta:template:pageinfo#tpl
|desc=Unable to change the display resolution after updating the kernel.}}

There are many reasons for this problem, and I will keep updating this page with possible causes.

<WRAP box round>

===== The graphics card is not working =====

==== How to confirm ====

If you are using Nvidia, run <wrap cmd>nvidia-smi</wrap> to see if the graphics card is working properly.
==== Solution ====

Refer to the following steps to recompile the Nvidia graphics driver.

  - Run <wrap cmd>ls /usr/src/</wrap> to confirm the version of the graphics driver you are using.
  - Run <wrap cmd>sudo apt install dkms</wrap> to install **DKMS**((A program/framework that enables generating Linux kernel modules whose sources generally reside outside the kernel source tree. Refer [[https://wiki.archlinux.org/title/Dynamic_Kernel_Module_Support#top-page|dkms]] to get more details.)).
  - Run <wrap cmd>sudo dkms install -m nvidia -v <wrap cmdp>the-version-you-saw-in-step-1</wrap></wrap> to recompile and install the graphics driver.
  - Reboot your PC.

</WRAP>