changes display settings on startup when 2 screens

[Kienner Philippe]

when starting chromium 89.0.4389.90 (Official Build) snap (64-bit) on ubuntu 18.04.5 LTS, the display settings for my 2 screens is changed.
For example from Joint Display to Single Display, or just something else.

[Olivier Tilloy (osomon)]

Just launching the chromium snap triggers this setting change?
Can you reliably reproduce the problem after reverting the setting back to its original value?

If so, could you please attach a screencast demonstrating the problem? Thanks!

[Kienner Philippe (pkubuntu)]

Also happens with canary chrome!
Maybe some common lib?
@Olivier Tilloy, see videos:
http://dl.free.fr/rm.pl?h=gnt2KMjZJ&i=102870883&s=bZJFuOpdte2e5FQAr0uxk2erYisb9RX5

http://dl.free.fr/rm.pl?h=vWft3sfiP&i=102871013&s=BvIWf8XyNLiaFquxrcmzEvra7Krkm9FT

Cordialement
Philippe

[Kienner Philippe (pkubuntu)]

Sorry for the wrong urls.
Here are the download urls:

http://dl.free.fr/jhe23dPJm

http://dl.free.fr/oPZI6iyiA

Philippe

[Olivier Tilloy (osomon)]

Interesting, thanks for the screencasts.

If this happens with chrome as well, then that's definitely an upstream problem, not specific to the snap package. Would you mind filing a bug at https://bugs.chromium.org/p/chromium/issues/entry, and sharing the link to it here? Thanks!