VS Code flickers when running on a high DPI external monitor

[jlphelps]

• VSCode Version: 1.12.0
• OS Version: OSX Sierra 10.12.4
• Retina MBP, 15-inch, Mid 2015
• Graphics: AMD Radeon R9 M370X 2048 MB Intel Iris Pro 1536 MB

Steps to Reproduce:

1. VS Code maximized (not full screen)
2. Click in Javascript or HTML file

Extensions installed:

• dzannotti.vscode-babel-coloring
• waderyan.babelrc
• ceps.theme-darcula
• gerane.theme-dark-dracula
• HvyIndustries.crane
• donjayamanne.python

Etc:

• Occurs when all plugins are disabled
• Does not occur when window is not in focus
• Problem did not occur until most recent VS Code update.
• Occurs on external 4k display at 3360x1890 but not on built-in MBP display at 1920x1200

Happy to provide more info if needed. Thanks so much for all of your great work, I love VS Code!

[yangwen2]

I see this effect when I start code with the --disable-gpu parameter

[jrnail23]

same issue here. entire chunks of text in the editor become invisible as well.

[jrnail23]

FYI, setting "editor.cursorBlinking": "solid" seems to have helped

[kieferrm]

@jrnail23 do you start up with --disable-gpu?

[jlphelps]

I see a lot of flickering when scrolling as well. I am not starting with --disable-gpu.

If I reduce my display resolution to 3008x1692 (from 3360x1890) and maximize VS code the problem goes away.