1600313 - Drop down menus doesnt work on linux Fedora 31 with dual screen.

Status: RESOLVED DUPLICATE of bug 1597990

(Core :: Widget: Gtk, defect)

Description

[carl.minus]

Attachment: Screenshot from 2019-11-29 15-34-14.png

User Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:70.0) Gecko/20100101 Firefox/70.0

Steps to reproduce:

Open a tab to a page with drop downs, try to change the entry.

Actual results:

Nothing happens, selecting with mouse will not work. One can use <tab> however mouse left click on the drop down fails, with dual screen on linux Fedora 31.

Expected results:

The drop down should display alternatives.

Comment 1

[Martin Stránský [:stransky] (ni? me)]

Wayland issue, please use firefox-x11 package as a workaround for now.
Jan, can you look at it please?
Thanks.

Comment 2

[mcoffin13]

I can confirm this issue (wayland only, X11 works fine). Downgrading from 71 -> 70 shows that the bug was introduced in between those two versions.

Testing done on arch linux (kenel 5.3 and 5.4, mesa 19.3-rc5, webrender enabled and disabled, amdgpu and i915 backends both tested)

Comment 3

[Jokx]

On Ubuntu Eoan (19.10) with triple-screen, same issue when launched with MOZ_ENABLE_WAYLAND=1
firefox 71.0+build5-0ubuntu0.19.10.1 amd64

Comment 4

[Jan Horak [:jhorak]]

Please try the nightly. This issue should be fixed in bug 1597990.