Your JournalErrors.txt seems to show a lot of nouveau kernel messages,
which might be the problem...
Could you please try installing the proprietary nvidia driver? I think
the latest Nvidia driver supporting your GPU is version 340:
sudo apt install nvidia-340
** Summary changed:
- Severe graphical corruption in gnome-shell
+ Severe graphical corruption in gnome-shell with nouveau [Nvidia GeForce 8400M
GS]
** No longer affects: ubuntu
** Changed in: gnome-shell (Ubuntu)
Status: New => Incomplete
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1711936
Title:
Severe graphical corruption in gnome-shell with nouveau [Nvidia
GeForce 8400M GS]
Status in gnome-shell package in Ubuntu:
Incomplete
Status in linux package in Ubuntu:
Incomplete
Bug description:
When running gnome-shell on Ubuntu 17.10, text is visible only as white
blocks (or sometimes not visible at all), and some graphics, such as the icons
on the launcher menu, are corrupt. Only objects drawn by the gnome-shell and
related programs seem to be affected. Software which is not part of the
gnome-shell, such as LibreOffice, calculator, terminal, etc displays without
corruption.
---
ApportVersion: 2.20.6-0ubuntu6
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
DisplayManager: gdm3
DistroRelease: Ubuntu 17.10
GsettingsChanges: org.gnome.desktop.interface gtk-im-module
'gtk-im-context-simple'
InstallationDate: Installed on 2017-08-20 (0 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170818)
Package: linux
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 4.12.0-11.12-generic 4.12.5
Tags: artful wayland-session
Uname: Linux 4.12.0-11-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
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