[AMD64 - FC4-64] SMP causes keyboard trouble

[Steve Underwood]

David Niemi wrote:

>On Sun, 2005-08-14 at 15:43 +0800, Steve Underwood wrote:
>  
>
>>Steve Underwood wrote:
>>
>>    
>>
>>>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. 
>>>      
>>>
>>A slight correction. The Tyan machine won't boot with an SMP kernel, a 
>>PS/2 keyboard and USB enabled. If I disable USB it works. Apparently 
>>using motherboards which allow legacy USB support to be disabled things 
>>may work OK. The Tyan motherboard does not allow that. You either have 
>>USB on or off. Nothing in between.
>>
>>If you have selections of this kind in your BIOS, try then.
>>
>>    
>>
>>>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.
>>>      
>>>
>
>You may want to look at this bug which bit me
>
>https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=155759
>  
>
After posting what I wrote earlier, I thought I would have another look 
at the Tyan website. They now have a BIOS which does allow USB legacy to 
be turned off. This is version 1.16. Their notes don't mention this 
change, but after installing it I found the new option. I have been 
using a PS/2 keyboard for the past few hours with no errors. This is 
looking good. I suggest you try it. :-)

Steve