[Bug 1939895] [NEW] The application menu flickers in wayland

[Milos Ivanovic]

Public bug reported:

In Ubuntu 21.04 in standard Ubuntu (Wayland) session on maximized
Firefox 91 window when clicked on a hamburger menu, the menu starts to
flicker. It happens on the DELL Inspiron 15 3000 laptop with the
following graphic unit:

01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Jet
PRO [Radeon R5 M230 / R7 M260DX / Radeon 520 Mobile] (rev c3)

It doesn't flicker on Xorg session, neither on another laptop with Intel
graphics. It also doesn't happen when the window is not tied to the
right screen edge.

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  The application menu flickers in wayland

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