Public bug reported:
Ubuntu 14.04 on ThinkPad T440s in clamshell mode using external monitor:
The mouse periodically (not always) starts lagging dramatically. It's
difficult to position it when this happens, as I'll move the mouse and
the pointer will react a later, sometimes a long as a second, and with
little precision. Virtually unusable when it gets this way.
I've checked system monitor for runaway processes, and nothing is
hogging the CPU.
The mouse is a Microsoft wireless (optical). This also occurred with a
Logitech wireless mouse.
** Affects: ubuntu
Importance: Undecided
Status: New
** Description changed:
Ubuntu 14.04 on ThinkPad T440s in clamshell mode using external monitor:
The mouse periodically (not always) starts lagging dramatically. It's
difficult to position it when this happens, as I'll move the mouse and
the pointer will react a later, sometimes a long as a second, and with
little precision. Virtually unusable when it gets this way.
+
+ I've checked system monitor for runaway processes, and nothing is
+ hogging the CPU.
** Description changed:
Ubuntu 14.04 on ThinkPad T440s in clamshell mode using external monitor:
The mouse periodically (not always) starts lagging dramatically. It's
difficult to position it when this happens, as I'll move the mouse and
the pointer will react a later, sometimes a long as a second, and with
little precision. Virtually unusable when it gets this way.
I've checked system monitor for runaway processes, and nothing is
hogging the CPU.
+
+ The mouse is a Microsoft wireless (optical). This also occurred with a
+ Logitech wireless mouse.
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https://bugs.launchpad.net/bugs/1378533
Title:
Mouse lags when using external screen
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