Re: Compaq Presario 2105US ACPI = NO MOUSE

Quick update regarding problem below.

I have cvsupped the kernel again as of today, in order to get the new
ACPI implemention. Sadly, it does not seem to improve on the mouse
problem. 

I quickly installed Gentoo 1.4 just to verify that Linux manages to find
psm, and it does.

So, I'm now slowly working my way through the initialisation code to see
if I can at least pinpoint where the decision on IRQ availability is
made. Will report what/if I find.

Thanks,
Brendon


On Fri, 2003-12-05 at 08:09, Brendon and Wendy wrote:
> Dear list,
> 
> I am going to join the slowly growing number of users that are reporting
> that use of ACPI on 5.1-current on Compaq Presario (maybe just Compaq!)
> laptops results in the PS/2 mouse being undetectable by the OS (PSM:
> Unable to allocate IRQ).
> 
> This has been an ongoing thing for me - I've been aware of the problem
> for some time, but have not had the time to do anything about it. I
> could sware that 5.0 + ACPI used to work, in fact I might reinstall it
> to see.
> 
> I have already tried rebuilding my DSDT, and am going to try some
> further experiments (the Compaq raw .aml, does not compile cleanly with
> iasl and needs work). Going to try copying the resource allocation code
> from a desktop machine that seems ok with ACPI into the laptop (that'll
> be fun). I may also start walking through the resource
> allocation/discovery code in the kernel to see what the device driver is
> doing. My basic premise is that the kernel is having difficulty
> determining which IRQ to use for the PS/2 mouse.
> 
> Nate if you have suggestions of things to try I'm perfectly happy to do
> so.
> 
> For Nate, my boot -v output is at
> 
> http://humphrey.dyndns.org/dmesg.boot
> 
> original disassembled DSDT is at
> 
> http://humphrey.dyndns.org/presario2100us.asl
> 
> slightly tweeked (and no doubt munged) version:
> 
> http://humphrey.dyndns.org/presario2100us2.asl
> http://humphrey.dynsdns.org/presario2100usdiff
> 
> Thanks,
> Brendon
>