Red Hat Bugzilla – Bug 41631
usb mouse slowdown (sometimes)
Last modified: 2007-04-18 12:33:21 EDT
From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0) Description of problem: Sometimes after starting X the mouse seem very slow (low acceleration). Reloading the usb modules (or rebooting) seems to fix it, so I don't really know if this is a X or kernel problem. Anyway it happens with X so... How reproducible: Sometimes Steps to Reproduce: 1. startx 2. move the mouse fast 3. Actual Results: The mouse sometimes seems to have low acceleration. Expected Results: The mouse should move fast always. Additional info: I have a usb microsoft intellimouse optical and I'm using usb-uhci.o.
Are you using GNOME or KDE? Check your mouse settings in either one's control panel. You can change the mouse acceleration. If this doesn't help at all, I believe it would be a kernel problem as X gets USB events from the kernel. Arjan, have you heard anything about such USB problems? I'm USB-less myself..
Pete: did you see this ever before ?
It doesn't matter the window manager. It happens both with Gnome and KDE as well as with just XFree86 without any window manager. And it's apparently random, at least I haven't been able to reproduce it.
No, I did not see it before. Never heard of it either. It is unlikely that something is wrong with X, but it may be a good idea to do "xset q" before and after the problem happens. It would be helpful if the requestor tried to correlate the problem with USB bus renumeration by reading "dmesg | tail -50" periodically. If xset q result does not float, I am willing take the bug, but I am afraid it will be hard to crack. I need something reproducible.
Closing bug since it is unlikely to be an X bug, and there is no way to debug this without reproduceability or more information.