Unity plugin causes lags in windows movements (multimonitor)

[Paweł Jarosz]

Unity plugin (started after second monitor connected) causes lags in windows movements.

Steps to reproduce it:

   Start ubuntu unity with connected second monitor and move window.

After some research i found that disabling Unity Plugin in ccsm makes windows moving smooth again even if vsync is enabled in opengl plugin. But after reenabling unity plugin ... lags.

Also if i start ubuntu without second monitor connected and connect it after login to unity before running any applications then moving windows works ok without any lags, but if i start few apps and then connect second monitor ... lags.

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ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
CheckboxSubmission: 140c097dfb9f06402ec2bfa11be4bf05
CheckboxSystem: b633b4f40868d491c2ae5b50030ce6f3
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,grid,resize,gnomecompat,commands,scale,place,regex,snap,vpswitch,workarounds,move,imgpng,mousepoll,expo,session,unityshell]
DistroCodename: precise
DistroRelease: Ubuntu 12.04
DistroVariant: ubuntu
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
NonfreeKernelModules: fglrx
Package: unity 5.14.0-0ubuntu1
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 3.2.0-30.48-generic 3.2.27
Tags: precise running-unity precise running-unity precise running-unity ubuntu
Uname: Linux 3.2.0-30-generic x86_64
UnreportableReason: Please work this issue through technical support channels first.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Paweł Jarosz (paweljaroszit)]

Also if i start ubuntu without second monitor connected and connect it after login to unity before running any applications then moving windows works ok without any lags.

BTW... is there any procedure of reporting bugs?

[Omer Akram (om26er)]

the procedure is to report a bug using this command 'ubuntu-bug unity' so that we have a bit of information about your system

[Paweł Jarosz (paweljaroszit)]

apport information

[Paweł Jarosz (paweljaroszit)]

apport information

[Paweł Jarosz (paweljaroszit)]

apport information

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 874619, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.