Bug 151691 - USB mouse lock-up
USB mouse lock-up
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Pete Zaitcev
Brian Brock
Depends On:
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Reported: 2005-03-21 13:52 EST by Ryan Daly
Modified: 2007-11-30 17:07 EST (History)
5 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2005-10-07 11:32:02 EDT
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Regression: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Tracker ID Priority Status Summary Last Updated
Linux Kernel 4305 None None None Never

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Description Ryan Daly 2005-03-21 13:52:06 EST
Description of problem:
USB mouse locks up, usually in combination with ALT/CTRL modifiers.

Version-Release number of selected component (if applicable):

How reproducible:
Every time.

Steps to Reproduce:
1. Start X
2. Move mouse around while continually pressing CTRL and ALT simultaneously
3. Watch mouse lock
Expected results:
No mouse lockup.
Comment 1 Ryan Daly 2005-03-21 14:07:02 EST
I've confirmed that this lock-up occurs with multiple USB mice, and on multiple
Comment 2 Jason Baron 2005-03-21 17:15:33 EST
hmmm, any messages in /var/log/messages, when the mouse locks up? When it
'locks-up' is the keyboard and system still usuable?
Comment 3 Ryan Daly 2005-03-21 17:46:15 EST
No.  There's nothing there except for the entries when I remove and reinsert the
mouse into the USB port.

The system is still usable.  If the mouse happens to lock up while over a
window, I can still work in that window.  I can also CTRL-ALT-F1 to get to a

I've verified that this lock-up happens both with and without X running (i.e. in
a window manager and with GPM).

The only hardware I've been able to test on is a Dell Precision Workstation
670n.  I do not have RHEL 4 installed on any other systems.
Comment 4 Jason Baron 2005-03-22 16:31:42 EST
is there a kvm involved?
Comment 5 Ryan Daly 2005-03-22 19:27:55 EST
No.  No KVM is being used.
Comment 6 Scott Hunziker 2005-03-30 23:19:40 EST
I have the same problem with Fedora Core 3 (2.6.10-1.770_FC3smp) on a Dell
Dimension 8400.
Comment 7 Ryan Daly 2005-10-07 06:59:32 EDT
After updating the Dell BIOS to A05, no lock-ups have occurred.  The only thing
I'm dealing with now is the mouse jumping across the screen at what appears to
be random times.
Comment 8 Pete Zaitcev 2005-10-07 11:32:02 EDT
Scott and Richard need to file different bugs for different hardware.

As for random jumps, this is quite curious. I see that myself, on entirely
different hardware (Dell D600). I thought maybe something is racy somewhere
between OS and BIOS and bytes get lost. I'm going to have a look at it
as a separate issue.
Comment 9 Ryan Daly 2005-10-07 16:15:04 EDT
I opened a call w/ Red Hat support for this.  If you want the case number, let
me know and I can provide that.  At this point, we were waiting on feedback from
Dell to see if it's possibly (like you said) something in the BIOS.

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