Doing some testing:
- first modifying options into /etc/gdm3/custom.conf
**** set [daemon] WaylandEnable=false to force xorg login :
my feeling is that should be the default now as ubuntu as made that choice for
the release (and wayland / apps still does not well together in many cases)
- then rebboting
And now the problem existing with my hardware and reported here is gone: no
distorted screen.
That system is using the 'proposed' archive and is fully updated.
What is also different now: the login options (gear button) have dropped the
wayland ones.
So my conclusion are:
- /etc/gdm3/custom.conf should use xorg, not wayland
- the issue reported gere seems have been introduced by the wayland (1.14.0-2)
changes (patch)
*****
wayland (1.14.0-2) unstable; urgency=medium
* debian/patches/CVE-2017-16612.patch: (Closes: #889681)
- libXcursor before 1.1.15 has various integer overflows that could lead
to heap buffer overflows when processing malicious cursors, e.g., with
programs like GIMP. It is also possible that an attack vector exists
against the related code in cursor/xcursor.c in Wayland through
1.14.0.
* switch back to use upstream tarball
* debian/control: bump standards version, drop priority stanzas
-- Héctor Orón Martínez <zu...@debian.org> Sun, 04 Mar 2018 11:56:31 +0100
*******
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-16612
** Package changed: mutter (Ubuntu) => gdm3 (Ubuntu)
** Changed in: gdm3 (Ubuntu)
Status: Invalid => New
** Package changed: gnome-shell (Ubuntu) => wayland (Ubuntu)
** Changed in: wayland (Ubuntu)
Status: Invalid => New
** Changed in: wayland (Ubuntu)
Assignee: Daniel van Vugt (vanvugt) => (unassigned)
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1753776
Title:
Graphics corruption just before login animation to Xorg sessions
(Intel gen9 GPUs only)
To manage notifications about this bug go to:
https://bugs.launchpad.net/xorg-server/+bug/1753776/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
