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This question already has an answer here:

After I unlock the computer, the desktop background becomes glitched like this. However everything still works. I am currently using the default background. I installed the Nvidia driver using this tutorial: HowTo: Install latest NVIDIA Driver on Linux without getting black screen

Specs: Nvidia GTX 1070 (HDMI out to display), i7 6800K, 32 GB DDR4 (2x 16 gb), 1x Crucial M4 512 gb(Elementary OS 0.4 Loki 64 bit), 1x Crucial M550 512 gb (Windows 10), MSI X99 Gaming 7

Desktop

Any advice would be greatly appreciated.

marked as duplicate by Axel Advento, lemonslice, waldyrious, r3bl, bigbang Feb 12 '18 at 9:58

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

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I was running into the exact same issue recently. I found this bug report which mentions installing nvidia-370 from ppa:graphics-drivers/ppa. After doing that I'm able to lock and unlock my desktop without screwing up the background - hopefully that helps in your case too!

  • I've been having the same issue (GTX 960M). I added the ppa, installed version 375, but just had the same glitches appear. – Peter Uithoven Jan 12 '17 at 18:27

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