A recent NVIDIA driver update has caused graphical issues after resuming from suspend. This update fixes multiple security vulnerabilities and introduced graphical glitching. The versions affected are 375.39 and 378.13.
Here is more info about the security vulnerabilities fixed:
While it is possible to downgrade, it’s not recommended due to the nature of the security issues. NVIDIA is planning an updated release to fix the issue, which will be released in May, ‘17.
We’ve developed a solution that has been released in our driver. Please run updates to get the current system76 driver for this fix.
As another option, other desktop environments that we’ve tested, including Cinnamon, MATE, and XFCE, don’t have this issue. Take a look at the other environments, and try running a different one:
There is a bug report filed here:
Any additional people that mark Does this bug affect you? on that bug report will help gain additional traction from developers to get this issue resolved.