Re: temporary freezes when pressing capslock / numlock

On Tue, May 27, 2008 at 10:34:47AM -0700, Maksim Yevmenkin wrote:

Agreed. I was never able to pinpoint it myself, but it certainly didn't
show up before kbdmux.

1) what keyboards are used? usb only, ps2 only or mix?

2) what mice are used? usb only, ps2 only or mix?

if ps2 devices (i.e. keyboard and mouse) are not used at all, does
disabling atkbd(4) and/or psm(4) help?

I think I stated this in my original thread but let me restate. I've only
noticed the problem when both usbkbd and atkbd are both enabled (as in the
GENERIC kernel) and a USB keyboard (only) is attached. Once I plug in the
atkbd, the problem goes away. The problem also does not exist if just the
atkbd is plugged in with no USB keyboard.

I haven't noticed a problem with the mice, but I've not used a PS/2 mouse
in almost a decade. I have noticed a problem which has hit me rarely on a
6.x system; perhaps because the problem is not easily reproducable have I
never seen it in 7.x. Basically I've seen the kernel get "stuck" and the
only way to unstick it was to move the USB mouse. Moving the mouse allowed
the interrupt to trigger and things would happen elsewhere in the kernel,
but as soon as I stopped moving the mouse everything else stopped (ata
reads/writes, graphics updates, etc.). Unplugging the mouse was a bad idea
because the plugin event never triggered. I've only witnessed this on
post-kbdmux systems but since it wasn't reproducable in any reliable
fashion, I couldn't pin the problem down.

-- Rick C. Petty
_______________________________________________
freebsd-hackers@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@xxxxxxxxxxx"

Relevant Pages

  • Re: ukbd attachment and root mount
    ... sometimes root filesystem is mounted first. ... Another (with custom kernel, zfs root): ... So I stuck at mountroot prompt without a keyboard to enter anything. ... This motherboard has PS/2 emulation for USB devices (often called "USB ...
    (freebsd-stable)
  • Re: mouse scroll not working in 2.6 kernel
    ... My kernel is most insulted. ... Make sure you have an entry for remapping the extra buttons above 5. ... It looks as though changing the X config entry for the USB mouse might ... used my ps2 mouse. ...
    (comp.os.linux.setup)
  • Re: P5K Series - where to plug in the mouse?
    ... I made the mistake of buying this mb too because whne I read PS2 in the ... specs I made the wrong assumption of it having both mouse and keyboard ... only had PS2 so i had to go and buy a new KVM with USB. ... Thanks a lot Asus, ...
    (alt.comp.periphs.mainboard.asus)
  • Re: uhidev(4) update - USB HID driver level for devices with multiple report ids
    ... I can connect keyboard after boot and it works, ... But If I've boot with connected USB keyboard - system panics: ... page fault while in kernel mode ...
    (freebsd-current)
  • PS/2 Keyboard under 2.6.x
    ... booted (I can use it to select which kernel to boot in grub -- actually, ... A USB keyboard works (I am composing this message from the ... of the Professional Redhat editions had to switch to a USB keyboard as well. ... # ACPI Support ...
    (Linux-Kernel)