From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20041111 Firefox/1.0 Description of problem: Just installed Fedora Core 3. The mouse behaves badly. I updated and it still behaves badly. -- Under heavy disk/network I/O, it appears mouse events are lost. E.g., I have to click many times on something to get the click event through. Moving the mouse seems like MouseMotion events get lost too. -- The most annoying thing is that when I scroll up on the mouse wheel, it also triggers a right mouse button event, plus occasionally another event because it constantly causes firefox to jump to home or backware or forward. Mouse wheel down works fine though. I thought the problem went away with a single processor kernel, but it reappeared while I was typing this bug report so I guess it isn't smp kernel related. Version-Release number of selected component (if applicable): xorg-x11-6.8.1-12.FC3.21, kernel-2.6.9-1.681_FC3 How reproducible: Always Steps to Reproduce: 1. boot 2. login under X 3. scroll up on the mouse-wheel Actual Results: Popup menus normally caused by a right click come up, as well as a scroll up. Additional info: Mouse: Logitech Cordless Optical Mouse, connected to a Belkin PS/2 KVM via a USB to PS/2 converter. System: Tyan Thunder K7, dual athlonMP 1.2 Ghz cpus. Mouse stuff in xorg.conf: InputDevice "Mouse0" "CorePointer" Section "InputDevice" Identifier "Mouse0" Driver "mouse" Option "Protocol" "IMPS/2" Option "Device" "/dev/input/mice" Option "ZAxisMapping" "4 5" Option "Emulate3Buttons" "no" EndSection
Sounds more like a kernel issue than an X one. Reassigning to kernel component.
Additional Note: The mouse doesn't behave strangely until after the computer has been running for several minutes. Does anyone have any ideas on how I can track down the nature of the bug? Looking at other bugs, maybe this is related to bug 123535? On my system, legacy USB support is disabled in the bios.
Reboot your system, to ensure the hardware is fully reset. After the system comes up, start X normally, and try to invoke the problematic behaviour. Once the problem occurs, please make a backup copy of your /var/log/messages from boot time onward here. Also attach your X server log and config file for completeness. Please attach each as individual uncompressed file attachments using the link below.
Created attachment 108017 [details] Messages file from boot to problem occurance For this boot, I noticed the mouse wheel start to throw bad events on a scroll up at about 21:22.
Created attachment 108018 [details] X11 conf file
I've tried running with APIC disabled in the bios, and also passing noapic as an option to the kernel. The system seems to run a bit longer before the mouse starts acting up, but perhaps it just seems that way because I'm watching it more closely. In any case, after some time the mouse-wheel-up starts generating bad events, and I definately notice missing mouse-motion events when I'm transfering files via scp. I'm not maxing the bandwidth because it's going over a cable-modem. Also, I ran the scp from tty1 to make sure it wasn't related to writing to the terminal. Same behavior. I did notice this in the earlier message log, thus prompting me to try the noapic stuff: I/O APIC: AMD Errata #22 may be present. In the event of instability try booting with the "noapic" option.
After finding this article on the net: http://kerneltrap.org/node/view/2199 I change the protocol from "IMPS/2" to "ExplorerPS/2" and my mouse behavior has improved significantly. The mouse wheel seems to work well now: it's been running for a day and hasn't thrown any spurious events with this protocol. However, I'm still seeing the dropped events when I do some network traffic like scp. I loose mouse motion events, as well as mouse down and mouse up events on all buttons. When it gets into this state, I'm probably loosing around 20-30% of the mouse events, which is bearable, if ackward.
An update has been released for Fedora Core 3 (kernel-2.6.12-1.1372_FC3) which may contain a fix for your problem. Please update to this new kernel, and report whether or not it fixes your problem. If you have updated to Fedora Core 4 since this bug was opened, and the problem still occurs with the latest updates for that release, please change the version field of this bug to 'fc4'. Thank you.
I tried running with the news kernel with a non-SMP compile for a few days and it seems to run fine. However, The SMP kernel panics on me during boot so I am unable to test that. I suppose I should file a bug for that but instead I think I'll just upgrade to fc4 in a few days and file bugs against that. I'll be back.
I'm going to change this to not-a-bug. I connected the mouse to a second computer via a kvm switch and experienced the same behavior with a Fedora Core 4 install. Interestingly, when I setup the new system to dual-boot with Windows XP, and fully updated the system, I experienced the same erratic behavior with the mouse (although, only after I installed SP2). Irregardless, it must be some kind of hardware problem. The mouse does behave alright under fc4 when I switch the protocol from "IMPS/2" to "ExplorerPS/2".