[Kernel-packages] [Bug 1634451] Re: Screen flickers when booting ubuntu 16.10 on USB stick

2016-10-28 Thread hakon
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.

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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

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[Kernel-packages] [Bug 1634451] Re: Screen flickers when booting ubuntu 16.10 on USB stick

2016-10-28 Thread hakon
I have the same problem. I installed a fresh Ubuntu 16.10 on my Lenovo
Edge540 laptop. Screen starts flickering during installation from USB
and only stops when the mouse is moving. Very annoying. See this
question on askubuntu.com :

http://askubuntu.com/q/838957/156688

seems like there are many people having this issue.

-- 
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

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