I have installed Ubuntu 18.04 LTS on my laptop which is a Lenovo Ideapad 300 with 8GB of RAM, an Intel® Core™ i7-6500U CPU @ 2.50GHz × 4 processor and Intel® HD Graphics 520 (Skylake GT2). I have GNOME 3.28.1 which logically is latest version of GNOME coming with Ubuntu 18.04 LTS. Everything works perfectly but I found a bug which happens when logging in. When I boot my laptop (which is not dual boot, it only has Ubuntu 18.04 LTS installed), I press Enter to select the only available user (my user) and then I am prompted to enter my password. If I type my password wrong by a character more
(I haven't tried a smaller or a bigger length) and then give the right password the GUI crashes. What I mean by crashing is that I get a static purple screen where I can only move my mouse pointer and nothing else. I get no desktop, no icons, no nothing. I don't know if it is a hardware incompatibility or a bug but it happens every time I follow the steps I mentioned above and then I have to hard shutdown the laptop.
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ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: george 1599 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
HibernationDevice: RESUME=UUID=10e7b298-4d9e-47e3-a810-d58d8cf6c6ca
InstallationDate: Installed on 2018-04-28 (13 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 8087:0a2a Intel Corp.
Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 002: ID 174f:14e9 Syntek
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 80Q7
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=38e55cbd-3efc-41fb-a339-2c5795929cf1 ro quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
RelatedPackageVersions:
linux-restricted-modules-4.15.0-20-generic N/A
linux-backports-modules-4.15.0-20-generic N/A
linux-firmware 1.173
Tags: bionic
Uname: Linux 4.15.0-20-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 12/03/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: D5CN31WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: Paris 5A8
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 300-15ISK
dmi.modalias: dmi:bvnLENOVO:bvrD5CN31WW:bd12/03/2015:svnLENOVO:pn80Q7:pvrLenovoideapad300-15ISK:rvnLENOVO:rnParis5A8:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoideapad300-15ISK:
dmi.product.family: IDEAPAD
dmi.product.name: 80Q7
dmi.product.version: Lenovo ideapad 300-15ISK
dmi.sys.vendor: LENOVO
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1770509
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.