Interface Gets Blurry

Under various circumstances, part or all of the Mailspring interface becomes blurry. This has been observed on several platforms:

  • Windows 10
  • macOS Big Sur (and prior)
  • Ubuntu 20.04 (and prior) - apparently resolved?

Some users suspect this is related to Electron. @bengotow has thought it likely it is rendering on the half-pixel.

We would need further verification of this occuring with Mailspring 1.7.8 or later, ideally on an up-to-date system, before we can diagnose further.


I can confirm this is still an issue for me in the activity sub-menu. OSX 10.14.6, Mailspring 1.7.8. A bit perplexed why it’s working on one machine but not the other, though (same osx and mailspring version)

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I have been trying to reproduce the issue, but had no luck so far. Tested on:
Ubuntu 20.10 – Multiple display resolutions and scaling factors (100%, 125%, 150%, 175%, 200%)
macOS 11.1 – MacBook Retina Display with different resolutions + external display

downloading the latest update fixed the activity tray blurriness for me! maybe it was just a weird initial install bug

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I can confirm this on Windows 10 Pro, updated to the latest patches as of April 18, 2021. I have seen this in other programs like Discord, and disabling hardware acceleration in the settings fixes it.

It persists through a restart, and through GPU driver updates. I have an nVidia RTX 3080. Monitor refresh is 240Hz.

What information can I provide to help troubleshoot?