PS/2 vs IDE problem on Athlon64 X2

PS/2 vs IDE problem on Athlon64 X2

[Rafael J. Wysocki]

Hi,

I have a machnine with Athlon64 X2 and AsRock 939Dual-SATA2 mobo (based
on the ULI chipset) on which the PS/2 devices (keyboard and mouse) are in a
bad correlation with IDE, or at least with the LiteOn DVD burner attached to it.

Namely, when the DVD drive is being used (eg. for burning a DVD in the
background) the keyboard and mouse get a bit flaky.  The mouse/keyboard
response gets noticeably worse, some random key codes are generated and
the mouse sometimes behaves as though a button was pressed (this happens
when I move the mouse without touching the buttons).

I've been observing these symptoms for quite some time, at least with all of
the recent -rc kernels, up to and including 2.6.17-rc6.  Of course I can live
with them and they seem to be related to the hardware, but I thought it might
be a good idea to let you know.

I wonder if anyone has observed similar symptoms recently.

Also, if anyone's interested in more detailed information about the system,
please tell me.

Greetings,
Rafael

Re: PS/2 vs IDE problem on Athlon64 X2

[Meelis Roos]

RJW> I have a machnine with Athlon64 X2 and AsRock 939Dual-SATA2 mobo (based
RJW> on the ULI chipset) on which the PS/2 devices (keyboard and mouse) are in a
RJW> bad correlation with IDE, or at least with the LiteOn DVD burner attached to it.

I recently got the same mainboard and it works fine for me with CD
reading/writing (LG CDRW, no DVD drive). Just tried yesterday, wrote a
CD at speed 12 and then read it as fast as it could and I did not notice
anything wrong. I'm using PS/2 keyboard and mouse and a very recent git
kernel (2.6.17-rc6+...). Maybe the CD speed is not enough to trigger it.

Are you sure DMA was on?

-- 
Meelis Roos

Re: PS/2 vs IDE problem on Athlon64 X2

[Rafael J. Wysocki]

On Monday 12 June 2006 09:44, Meelis Roos wrote:
> RJW> I have a machnine with Athlon64 X2 and AsRock 939Dual-SATA2 mobo (based
> RJW> on the ULI chipset) on which the PS/2 devices (keyboard and mouse) are in a
> RJW> bad correlation with IDE, or at least with the LiteOn DVD burner attached to it.
> 
> I recently got the same mainboard and it works fine for me with CD
> reading/writing (LG CDRW, no DVD drive). Just tried yesterday, wrote a
> CD at speed 12 and then read it as fast as it could and I did not notice
> anything wrong. I'm using PS/2 keyboard and mouse and a very recent git
> kernel (2.6.17-rc6+...). Maybe the CD speed is not enough to trigger it.

That would probably mean there's a hardware problem with my mobo.  Well ...

> Are you sure DMA was on?

Yes.

Greetings,
Rafael

Re: PS/2 vs IDE problem on Athlon64 X2

[Alistair John Strachan]

On Monday 12 June 2006 11:01, Rafael J. Wysocki wrote:
> On Monday 12 June 2006 09:44, Meelis Roos wrote:
> > RJW> I have a machnine with Athlon64 X2 and AsRock 939Dual-SATA2 mobo
> > (based RJW> on the ULI chipset) on which the PS/2 devices (keyboard and
> > mouse) are in a RJW> bad correlation with IDE, or at least with the
> > LiteOn DVD burner attached to it.
> >
> > I recently got the same mainboard and it works fine for me with CD
> > reading/writing (LG CDRW, no DVD drive). Just tried yesterday, wrote a
> > CD at speed 12 and then read it as fast as it could and I did not notice
> > anything wrong. I'm using PS/2 keyboard and mouse and a very recent git
> > kernel (2.6.17-rc6+...). Maybe the CD speed is not enough to trigger it.
>
> That would probably mean there's a hardware problem with my mobo.  Well ...

This problem certainly sounds like a hardware fault. If you're not using the 
latest BIOS for this board, I suggest you upgrade it.

-- 
Cheers,
Alistair.

Third year Computer Science undergraduate.
1F2 55 South Clerk Street, Edinburgh, UK.