Regression: The screen keeps flashing (even in text terminal mode)

Bug #1637032 reported by Poldi
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
xorg (Ubuntu)
Fix Released
Undecided
Unassigned

Bug Description

After upgrading to 16.10 the screen (Desktop and Terminal)flashes intermittently making the system unusable.

I get the same behaviour when booting 16.10 from the LiveCD

Booting with the 4.4.0 Kernel still works

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: ubuntu-release-upgrader-core 1:16.10.8
ProcVersionSignature: Ubuntu 4.8.0-27.29-generic 4.8.1
Uname: Linux 4.8.0-27-generic x86_64
NonfreeKernelModules: nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Thu Oct 27 11:56:38 2016
InstallationDate: Installed on 2015-02-15 (619 days ago)
InstallationMedia: Ubuntu 12.04.5 LTS "Precise Pangolin" - Release amd64 (20140807)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: Upgraded to yakkety on 2016-10-24 (2 days ago)
VarLogDistupgradeAptlog: Error: [Errno 13] Permission denied: '/var/log/dist-upgrade/apt.log'
VarLogDistupgradeMainlog: Error: [Errno 13] Permission denied: '/var/log/dist-upgrade/main.log'

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Poldi (poldi) wrote :
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Poldi (poldi) wrote :

Not sure if this is visible from the logs, but this is a Hybrid Laptop with an Intel and Nvidia graphic cards

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Brian Murray (brian-murray) wrote :

Not a bug with the release upgrader, rather with the system after upgrading.

affects: ubuntu-release-upgrader (Ubuntu) → xorg (Ubuntu)
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Poldi (poldi) wrote :

Ok, but I now have a laptop that us unusable even when booting from the liveCD

Thanks

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Poldi (poldi) wrote :

As I indicated in the original post, the problem also occurs when booting from the LiveCD.
Not sure what additional info to provide, so have attached a few files I thought may be important.

Pretty much stuck here as the only option right now seems to be be to go back to 16.04.
Thanks

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Poldi (poldi) wrote :

Given the lack of response I assume I have the only laptop with this problem.
What can I do to get help?
Thanks

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Poldi (poldi) wrote :

Looked at the Additional Drivers on Software & Updates and noticed that the driver for the Intel CPU was not enabled (Do Not Use was selected)

Given that right now I don't have much to loose, I enabled the additional driver.
I now get a black screen with the latest Kernel, but no more flashing in Terminal Mode
The 4.4.0 Kernel still works (see screenshot)

Revision history for this message
Poldi (poldi) wrote :

I should have been more precise when indicating that I have the same problem when booting from the LiveCD.
I'm getting the flashing screen at the Welcome screen after booting the LiveCD (where it asks you if you want to try Ubuntu)

Revision history for this message
Poldi (poldi) wrote :

Somebody in the Forum suggested to add the output of inxi, so here it is
llist@LeosGameLaptop:~/Downloads$ inxi -G
Graphics: Card-1: Intel 4th Gen Core Processor Integrated Graphics Controller
           Card-2: NVIDIA GM204M [GeForce GTX 970M]
           Display Server: X.Org 1.18.4 driver: N/A Resolution: 1920x1080@60.01hz
           GLX Renderer: Mesa DRI Intel Haswell Mobile GLX Version: 3.0 Mesa 12.0.3

Revision history for this message
Poldi (poldi) wrote :

Have been asked in the forum to tag this issue as regression

#Regression

summary: - The screen keeps flashing (even in text terminal mode)
+ Regression: The screen keeps flashing (even in text terminal mode)
Revision history for this message
Poldi (poldi) wrote :

This issue has been resolved in Release 17.10
Thanks

Changed in xorg (Ubuntu):
status: New → Fix Released
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