It was not quite correct what I said about flickering stopping only when
mouse moves. It also stops when something is output continuously to the
terminal window. For example, running the following command in gnome-
terminal window:
perl -MTime::HiRes -E '$i=0;while (1) { $i++; Time::HiRes::sleep( 0.2 );
say "Hello $i" }'
causes the flickering to stop. However, if I increase the sleep delay
between writes to the terminal from 0.2 to 0.3 seconds, flickering
starts again. So the output must be continuous for the flickering to
stop.
--
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/1634451
Title:
Screen flickers when booting ubuntu 16.10 on USB stick
Status in linux package in Ubuntu:
Confirmed
Bug description:
My PC is Acer Aspire V3-772G. At present, I am using Ubuntu 16.04. I
made bootable USB sticks using images of Ubuntu 16.10 and Ubuntu Gnome
16.10 and tried to install both of them. However, during boot up, the
screen flickers when the mouse is not moving. This screen flickering
does not happen when I boot Ubuntu/Ubuntu Gnome 16.04 on USB stick.
LSB Version:
core-9.20160110ubuntu0.2-amd64:core-9.20160110ubuntu0.2-noarch:security-9.20160110ubuntu0.2-amd64:security-9.20160110ubuntu0.2-noarch
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-43-generic 4.4.0-43.63
ProcVersionSignature: Ubuntu 4.4.0-43.63-generic 4.4.21
Uname: Linux 4.4.0-43-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC1: basilrabi 2030 F pulseaudio
/dev/snd/controlC0: basilrabi 2030 F pulseaudio
CurrentDesktop: Unity
Date: Tue Oct 18 18:09:25 2016
HibernationDevice: RESUME=UUID=0d507585-3d7d-4cbb-89ff-5b4cd2b964ff
InstallationDate: Installed on 2016-04-24 (176 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
MachineType: Acer Aspire V3-772G
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-43-generic.efi.signed
root=UUID=3d4fde01-c8b1-4497-b23d-ed75f4d8fe85 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.4.0-43-generic N/A
linux-backports-modules-4.4.0-43-generic N/A
linux-firmware1.157.4
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/07/2014
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.15
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: VA70_HW
dmi.board.vendor: Acer
dmi.board.version: Type2 - Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnInsydeCorp.:bvrV1.15:bd03/07/2014:svnAcer:pnAspireV3-772G:pvrV1.15:rvnAcer:rnVA70_HW:rvrType2-BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: Aspire V3-772G
dmi.product.version: V1.15
dmi.sys.vendor: Acer
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1634451/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp