Re: keyboard + PS/2 mouse locks after opening psaux

From: Marius Gedminas (
Date: Thu Oct 11 2001 - 10:24:17 EST

On Tue, Oct 09, 2001 at 12:21:48PM +0200, Krzysztof Halasa wrote:
> I'm having the following problem: after I start X11 (or gpm with no X)
> my keyboard and PS/2 mouse sometimes locks up. What could that be?

I have the same problem. However the lockup most often occurs after
switching with Ctrl+Alt+Fx from plain text console to X. PS/2 mouse +
keyboard, gpm running.

> 440BX UP celeron mobo here (Abit - BH6?), '94 AT keyboard, '2000 A4tech
> 2-wheel mouse, various Linux 2.4 versions (usually -ac, currently 2.4.10ac3).
> I'm using NVidia Xserver module, but it doesn't seem related (the lookup
> occured with no X while starting gpm once or twice).

I had this problem for quite some time with 2.2.x and 2.4.x kernels,
XFree86 3.3.x -- 4.1.0 and S3 Trio3D / NVidia TNT2 M64 / NVidia
GeForce2. Lockups with S3 convice me that NVidia module is probably
irrelevant here.

> If I kill Xserver (haven't tried with gpm), the keyboard (and mouse) start
> working again (the next Xserver spawn works fine).

I've found out that ssh'ing to the host and running chvt 1 (as root)
helps. Switching back to X usually works fine.

I haven't tried monitoring /proc/interrupts, but even the magic SysRq
doesn't work during the lock-up.

P.S. I'm not subscribed to linux-kernel.

Marius Gedminas

"I'll be Bach."  -- Johann Sebastian Schwarzenegger
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This archive was generated by hypermail 2b29 : Mon Oct 15 2001 - 21:00:39 EST