Flickering screen bug

[JVDE]

Hi,

I'm having issues with with my current installation of Zorin OS Pro (kernel 5.13.0-27-generic and kernel 5.13.0-25-generic). Whenever I boot I get the following problem (it's a link to youtube vid):

As you can see, my extended monitor renders correctly though. I've also tried disconnecting the external monitor (before and after boot), same result on my main laptop screen.

I'm currently using this Nvidia driver, but all of them (even the X.Org one) gives the same result. So I'm guessing that it's not the issue.

These are my installed Zorin kernels (in the boot selection menu):

5.11.0-43-generic is the only one that doesn't have this problem. Also the one I'm currently using to type this forum post.

Besides that, this is my pc information:

Any help would be welcome.

Thanks.

[Aravisian]

I would stick with the working 5.11.0-43 kernel, then.

[HOW TO] set an older kernel to default boot

You may need to use an earlier kernel than the current kernel used by Zorin. This method allows you to set the kernel that you will boot into by default. To set the new kernel to default: Boot into the kernel you wish to be Saved. Open terminal and run: sudo nano /etc/default/grub Change GRUB_DEFAULT=0 to GRUB_DEFAULT=saved Hit enter to drop down a line. Add GRUB_SAVEDEFAULT=true ctrl+x to exit, then the y key to say yes to save, then the enter key to save as current configuration. Ru…

[Storm]

Use the kernel that works for you. If all your hardware works at a specific kernel use it. Newer doesn't always means better only if your computer is new and needs drivers to work.

[JVDE]

Thanks, will try that out later this week.

[carmar]

Marked Solution. 390