I, too, have inherited this problem since upgrading to Lucid. There are a few
other characteristics which may help track down the issue:
- Update Manager is the worst offender for triggering the problem and also
reports that it cannot get mouse focus
- Firefox is another program that will always trigger the issue
- Most apps that have a Gnome right-click menu can be used to "escape" the
block ...
- Right click on the top menu of the window with focus
- Right click on your target window
- Start clicking in the target app
- The tricky part can be finding the window that currently has the mouse
trapped - particularly if it's buried
- Occasionally I have had the situation where the mouse is focused in one
window and the keyboard in another - particularly in an xterm.
- Once stuck xev does not report window focus changes etc.
- VMWare Player, as you might imagine, triggers this behavior and can render
a machine almost useless
My hardware is as follows:
- Intel Core 2 Quad Q8400
- 8Gb RAM
- Gigabyte EP45-UD3l mobo
- Logitech wireless mouse
- Gigabyte GV-R435OC-512I - ATI HD4350 based graphics card
- ATEN CS62DU 2 Port DVI USB KVM
- SABRENT USB to PS/2 (Dual PS/2) Converter Adapter Cable Model SBT-PS2U
- NMB RT8256CW keyboard (circa 1996)
- assorted SATA disks etc.
I am running with ACPI=off noapic in the startup line (and still see all
4 cores in system monitor)
As much as I'd like to see this issue fixed I'm also prepared to buy a
different mouse if someone can assure me that the problem would go away.
I've almost got the point of turning the machine inside out and running
Windows 7 as the host with a Linux guest under VMWare. However since I
run a mail server, samba domain controller, web server, mysql server
etc. you can understand that would be a last resort!
Any advice gratefully received. Also if you need me to test anything I
will be happy to help where I can.
Nick
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https://bugs.launchpad.net/bugs/375905
Title:
Mouse focus gets stuck over control objects
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