Display Issues Since Last Update

General Help
1

I updated Zorin a few days ago, and ever since then I've been having display issues with my second monitor (TV). The monitor in question is actually an LG TV (1080p) that I use a second display, and ever since I installed the update my PC has been having issues switching between the 1440p and 1080p resolutions. My desktop monitor is 1440p, but whenever I turn on the TV (which should switch and scale automatically), it drops the resolution down to 1024 x 768 (4:3). I don't know why this is happening, but the only way I've been able to get it to work again is by unplugging the display port in the back of my graphics card and plugging it into a different port. I now have to do this every time I want to watch the TV.

I've also been having some issues with my mouse, but I'm not entirely sure if it was caused by the update, or the mouse itself. The mouse is a Logitech MX Master 3, and for some reason I'm now getting range and stability issues. I hope the devs will look into these issues, because they're quite annoying to deal with.

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2

When you login are you using Wayland or Zorin on xorg?

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3

Have you tried booting the previous version linux kernel generic, from grub menu item "Advanced Options for Zorin".

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4

I have no idea what version I'm using, but I'm assuming it's the "Zorin" option, since I'm just using the out of the box settings of 17.1. I also haven't tried previous kernel versions, and I don't think I'd be willing to mess with any more settings to get this to work. I'll just wait for the next update and hope that it's fixed by then.

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5

It will not hurt to try booting a previous kernel, it will at least aid fault disagnosis.
You can then reboot after, using the normal "Zorin" menu item which will use the latest kernel again.

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6

Not sure what I did, but it seems to be working now. I ended up switching out an HDMI and DP cable, but I don't know for sure if that was the problem.

7

:mage: magic! ...normally conjured up for illogical sound issues, not display issues.

Can you please explain what you did here: "I ended up switching out an HDMI and DP cable".

Sometimes HDMI cable is one-way not bi-directional or sub-equipped to cut costs. A different HDMI cable sometimes fixes an external display issue.

8

After install new kernel, i also affect display problem... my external monitor are black some second (2-3 ms) and come back.... very annoying...

Any idea, how to fix it?

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Lots of us had trouble since the kernel update. If you're using an Nvidia GPU, it might be a conflict between the Nvidia driver and the kernel. I had that problem, and Aravisian solved it for me over here:

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10

I use integrated Intel VGA.

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You might want to post in the hardware issues or general help forum where more experienced users watch to help out more aggressively than here in feedback. I'm not advanced enough to troubleshoot for you, but others may be. What might help in the meantime is booting using the previous kernel. If it works, you can set it to keep booting with the previous kernel until you can get a real answer.

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I will move this from Feedback to General Help, as it was a question seeking an answer.
Also marked post #6, re HDMI cable change, as "Solution". Zab

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