Have you tried the first solution here: https://askubuntu.com/questions/1062031/screen-flickering-in-ubuntu-18-04-1-lts if that doesn't fix the issue, can you please post the issue on the support forum: https://forum.peppermintos.com where we'll try our best to get to the bottom of the issue.
Have you tried the first solution here: /askubuntu. com/questions/ 1062031/ screen- flickering- in-ubuntu- 18-04-1- lts /forum. peppermintos. com
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if that doesn't fix the issue, can you please post the issue on the support forum:
https:/
where we'll try our best to get to the bottom of the issue.