Thank you Olivier.
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/1798999
Title:
firefox windows are black in Ubuntu 18.10
Status in firefox package in Ubuntu:
Fix Released
Bug description:
1) The release of Ubuntu you are using, via 'lsb_release -rd' or System ->
About Ubuntu
Description: Ubuntu 18.10
Release: 18.10
2) The version of the package you are using, via 'apt-cache policy
pkgname' or by checking in Software Center
firefox:
Installed: 63.0+build1-0ubuntu1
Candidate: 63.0+build1-0ubuntu1
Version table:
*** 63.0+build1-0ubuntu1 500
500 http://ubuntu.osuosl.org/ubuntu cosmic/main amd64 Packages
100 /var/lib/dpkg/status
3) What you expected to happen
Normal web browsing experience
4) What happened instead
Graphical elements are black. After upgrading to 18.10, firefox graphical
elements (window contents, context menus) are black. The only exception is a
small rectangle in the upper left corner.
Right-clicking within the window creates a context menu, which I am
able to verify by observing a new black rectangle of the correct width
that can be made to occlude the task bar by initiating it at a
suitable starting position.
If I launch firefox from a terminal then I get messages like the
following:
--------code
[GFX1-]: Failed to lock new back buffer.
[Parent 25238, Main Thread] WARNING: failed to open shm: Permission denied:
file
/build/firefox-MtV3KQ/firefox-63.0+build1/ipc/chromium/src/base/shared_memory_posix.cc,
line 129
--------/code
This occurs regardless of which desktop environment I use. Other browsers
are working fine.
I'm guessing the problem is related to the reported problem accessing
shm. However, for the sake of completeness, I am using an AMD gpu with
standard driver:
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Curacao XT / Trinidad XT [Radeon R7 370 / R9 270X/370X]
[1002:6810]
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