Messages in this thread | | | Date | Thu, 11 Sep 2003 15:32:06 -0700 | From | Andrew Morton <> | Subject | Re: horrible usb keyboard bug with latest tests |
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Andries Brouwer <aebr@win.tue.nl> wrote: > > > For me too, even with a normal keyboard attached to the PS/2 keyboard port. > > In my case it's very rare, and not a 'constant stick' but short 'pulse' of > > the same character like displaying 'kkkkkkkkk' in my terminal even if I'm > > sure that I didn't forget my finger on the key. OK, it's not a showstopper > > bug, but sometimes annoying. It's 2.6.0-test3 (vanilla). > > Yes, I see this too, but very infrequently. > > For the 2.6 kernels key repeat is not taken from the keyboard but is > done via a kernel timer, and clearly the code is not quite correct. > I have not yet been able to detect it before I already > had hit the next key but maybe somebody else can answer: > > When does this repeat stop? > Does it stop because the next key has been hit? > > And: does it occur more often when the machine has high load?
It happens to me madly on one of my machines. The machine is just some three-year-old PS/2 setup. It's due to mouse activity.
To reproduce:
1: press and hold a key
2: start moving the mouse in large, rapid circles
3: release the key.
The keystrokes continue to be inserted for an arbitrarily long period: it's easy to generate thousands of them. The mouse has to be moved in circles: moving it from side-to-side causes small stops which allow things to correct themselves.
It's quite irritating in practice.
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