[AMD64 - FC4-64] SMP causes keyboard trouble

[Steve Underwood]

A.J. Bonnema wrote:

> Hi,
>
> Last week I installed and configured FC4 (64 bits) on my athlon 64 
> bits (AMD 64 X2 4400+). It runs perfectly and quite swift. However, 
> within minutes after using the keyboard, the system *suddenly* starts 
> ignoring any keyboard input.
> The mouse still works, and in so far I do not need keyboard input, I 
> can work.
> Also, remotely, using SSH I can work normally.
>
> This problem occurs only when using the SMP kernel (default for my 
> processor). Using the UP kernel I have no problem at all.
> This error is repeatable, which renders the SMP kernel unusable to me.
>
> Has anyone else suffered this problem?
> Should I report it?

You should report it. 2.4.x kernels, single processor and SMP, never 
give any trouble with mice or keyboards of the PS/2 or USB kind. Things 
are really screwed up in 2.6.x, and are only slowly being sorted out. I 
also have an X2 machine with an Asus A8N-E motherboard (Nvidia 
nForce4-Ultra chip set). This seems to work OK with USB and PS/2 
keyboards using FC4. However, my dual Xeon machine with a Tyan 2665 
motherboard only works properly using a single processor kernel. With an 
SMP kernel it won't boot using a PS/2 keyboard. With a USB keyboard it 
kind of works, but it often doubles keys, or a key gets stuck on until 
the next keypress, or it locks up completely until I unplug and reinsert 
it. Various people have been reporting problems of this kind since 2.6.x 
was first used. It happens with vanilla kernels, as well as the ones 
supplied with FC4.

Regards,
Steve