A fix is on the way for Android 11 bug causing Pixel 4 display flickering - Android

Beta software often has bugs, but some are much harder to get rid of than others. With Android 11 Beta 2, a long-running bug has resurfaced with a vengeance. Since Android 11 Developer Preview 4, several Pixel 4 users have been plagued by a bug that causes the display to flicker. The cause appears to...

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Beta software often has bugs, but some are much harder to get rid of than others. With Android 11 Beta 2, a long-running bug has resurfaced with a vengeance.

Since Android 11 Developer Preview 4, several Pixel 4 users have been plagued by a bug that causes the display to flicker. The cause appears to be rapid cycling between the 60Hz and 90Hz screen refresh rates. It doesn’t really show up in screen recordings but is certainly very noticeable while using the phone.

Although Google never officially patched out the bug, changes in Android 11 Beta 2 messed with some of the workarounds to fix the problem. Additionally, it hit Android vice president Dave Burke with a bug, and he says a fix is coming.

The main issue is that many people used the Pixel 4’s ‘Force 90Hz’ option to bypass the flicker issue. The bug impacts the Pixel 4’s default 90Hz setting. Called ‘Smooth Display,’ it automatically swaps between 60Hz and 90Hz refresh rates depending on conditions like user interaction and whether the app is in use. So, users who applied the setting to Force 90Hz always on, or used the Pixel 4 in 60Hz mode, were able to avoid the problem.

Yup, known issue (I had hit it too). Fixed internally, should make it out in an update in ~2 weeks

— Dave Burke (@davey_burke) July 9, 2020