Comment 251 for bug 124406

The common thing between all those reports seems to be NVIDIA graphic
card... is there ANYONE experiencing this but that does not have an
NVIDIA card?

Rudd-O <email address hidden> wrote:

> Same problem here. NVIDIA driver, compiz, Fedora 11 RC, . It's not a
> problem with compiz, it's a problem with the X server or the input layer
> (evdev) in the kernel.
>
> --
> Keyboard keys get stuck and repeat (Feisty, Gutsy)
> https://bugs.launchpad.net/bugs/124406
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in GNU Emacs: Invalid
> Status in The Linux Kernel: Confirmed
> Status in “linux” source package in Ubuntu: Incomplete
> Status in “xorg-server” source package in Ubuntu: Invalid
> Status in linux in Ubuntu Jaunty: Incomplete
> Status in xorg-server in Ubuntu Jaunty: Invalid
>
> Bug description:
> Keyboard keys such as the arrows, Alt-F4, PageUp/PageDown, etc.
> often get 'stuck' and continue being 'clicked' even after they are
> physically released. For example when clicking Alt-F4, sometimes it
> gets stuck so all the windows are closed instead of just one.
>
> My configuration is Feisty + Xgl + Compiz Fusion. My previous
> configuration was Edgy + Xgl + Beryl, where this didn't happen.
> Others have reported the same problem without using either Xgl or
> Compiz.
>
> The keyboard itself isn't the problem. When dual-booting to Windows,
> everything works fine. Also, the problem happens with two different
> keyboards (internal laptop, external USB).
>
> My best guess is that the problem occurs at time of high system
> load. Somehow during these times the key-release signal gets lost
> and the key-press is repeated indefinitely. This happens more often
> with Compiz configurations because Compiz tends to increase system
> load. It also happens more often with power-hungry apps like Firefox
> and Acrobat Reader for similar reasons.
>
> PS: When the keys would repeat all input devices would be locked up.
> ie. mouse won't move, clicks don't do anything, keyboard presses
> don't register. Then when it becomes unstuck, the mouse moves around
> and everything. Hope this helps.
>
> See also this forum thread for other people with the same problem:
> http://ubuntuforums.org/showthread.php?t=432057
>
>

--
Marc Jauvin
514-905-6500 ext. 403
http://register4less.com