[Bug 1580692] Re: Dell latitude e6520 display freezes must reboot

[Edward Cherlin]

I have seen several remedies proposed for this bug, each of which seems
to work for some people and not others.

I am running Ubuntu 16.10. I had the mouse problem recurring every few
minutes, with the cursor moving normally but unable to click on
anything. Sometimes I could click in one window and not another.
Sometimes I could not click in any window, but the toolbar menu worked.

I also have Windows installed on this computer. The bug never occurs in
Windows.

Upgrade BIOS to A05: No effect on the bug on my computer.

Remove deprecated video driver: No effect on the bug on my computer.

Install most recent version of non-free Nvidia driver, 367.57 0ubuntu3:
Fixes bug on my computer almost completely.

Workarounds:

Switch console ctrl-alt-f1 and back ctrl-alt-f7. Mouse usually resumes
normal action.

Switch to Guest account and back using toolbar menu. Mouse usually
resumes normal action.

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Title:
  Dell latitude e6520 display freezes must reboot

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