Description of problem: USB mouse locks up, usually in combination with ALT/CTRL modifiers. Version-Release number of selected component (if applicable): 2.6.9-5.0.3.EL 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.
I've confirmed that this lock-up occurs with multiple USB mice, and on multiple systems.
hmmm, any messages in /var/log/messages, when the mouse locks up? When it 'locks-up' is the keyboard and system still usuable?
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 console. 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.
is there a kvm involved?
No. No KVM is being used.
I have the same problem with Fedora Core 3 (2.6.10-1.770_FC3smp) on a Dell Dimension 8400.
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.
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.
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.