RE: ACPI issues with Compaq Evo N800w and 5.0-p7

The Evo N800 has some known issues with its DSDT (an ACPI table in the
ROM).
If it is possible to override the DSDT under FreeBSD, you might want to
try
the one on this website:

http://acpi.sourceforge.net/dsdt/view.php?id=24

Now, I know this is a Linux website, but it might give you some clues as
to
the ACPI issues with that laptop:

http://website.atix.de/dt/notebook/linux-compaq-evo-N800v.htm

Keep in mind that the Linux ACPI stack is slightly ahead of FreeBSD's,
so
someone's success with that laptop under Linux (with a modified DSDT)
may
not translate to the same success under FreeBSD today.

> -----Original Message-----
> From: Georg-W. Koltermann [mailto:g.w.k_at_web.de] 
> Sent: Wednesday, May 21, 2003 4:45 PM
> To: freebsd-current_at_freebsd.org
> Subject: ACPI issues with Compaq Evo N800w and 5.0-p7
> 
> 
> Hi,
> 
> on my new Evo N800w I get a page fault when booting FreeBSD 
> 5.0-p7 with ACPI enabled:
> 
>         May 22 07:35:40 hunter kernel: acpi0: <COMPAQ CPQ0057 
> > on motherboard
>         May 22 07:35:40 hunter kernel: ACPI-0625: *** Info: 
> GPE Block0 defined as GPE0 to GPE15
>         May 22 07:35:40 hunter kernel: ACPI-0625: *** Info: 
> GPE Block1 defined as GPE16 to GPE31
>         May 22 07:35:40 hunter kernel: ACPI-1287: *** Error: 
> Method execution failed, AE_NOT_EXIST
>         May 22 07:35:40 hunter kernel: ACPI-1287: *** Error: 
> Method execution failed, AE_NOT_EXIST
>         May 22 07:35:40 hunter kernel: acpi0: power button is 
> handled as a fixed feature programming model.
>         May 22 07:35:40 hunter kernel: Timecounter 
> "ACPI-fast"  frequency 3579545 Hz
>         May 22 07:35:40 hunter kernel: ACPI-1287: *** Error: 
> Method execution failed, AE_AML_BUFFER_LIMIT
>         May 22 07:35:40 hunter last message repeated 2 times
>         May 22 07:35:40 hunter kernel: can't fetch resources 
> for \_SB_.C047 - AE_AML_OPERAND_TYPE
>         May 22 07:35:40 hunter kernel: acpi_timer0: <24-bit 
> timer at 3.579545MHz> port 0x1008-0x100b on acpi0
>         May 22 07:35:40 hunter kernel: acpi_cpu0: <CPU> on acpi0
>         May 22 07:35:40 hunter kernel: acpi_tz0: <thermal 
> zone> on acpi0
>         May 22 07:35:40 hunter kernel: acpi_tz1: <thermal 
> zone> on acpi0
>         May 22 07:35:40 hunter kernel: acpi_tz2: <thermal 
> zone> on acpi0
>         May 22 07:35:40 hunter kernel: acpi_acad0: <AC 
> adapter> on acpi0
>         May 22 07:35:40 hunter kernel:
>         May 22 07:35:40 hunter kernel:
>         May 22 07:35:40 hunter kernel: Fatal trap 12: page 
> fault while in kernel mode
>         May 22 07:35:40 hunter kernel: fault virtual address    = 0x0
>         May 22 07:35:40 hunter kernel: fault code             
>   = supervisor read, page not present
>         May 22 07:35:40 hunter kernel: instruction pointer    
>   = 0x8:0x0
>         May 22 07:35:40 hunter kernel: stack pointer          
>   = 0x10:0xc0500b84
>         May 22 07:35:40 hunter kernel: frame pointer          
>   = 0x10:0x0
>         May 22 07:35:40 hunter kernel: code segment           
>   = base 0x0, limit 0xfffff, type 0x1b
>         May 22 07:35:40 hunter kernel: = DPL 0, pres 1, def32 
> 1, gran 1
>         May 22 07:35:40 hunter kernel: processor eflags = 
> interrupt enabled, resume, IOPL = 0
>         May 22 07:35:40 hunter kernel: current process        
>   = 0 (swapper)
>         May 22 07:35:40 hunter kernel: trap number              = 12
>         May 22 07:35:40 hunter kernel: panic: page fault
>         May 22 07:35:40 hunter kernel: Uptime: 1s
>         May 22 07:35:40 hunter kernel: Terminate ACPI
>         May 22 07:35:40 hunter kernel: Automatic reboot in 15 
> seconds - press a key on the console to abort
> 
> It works ok with ACPI disabled.
> 
> ACPI dump will be sent in the next email.  Do you have any 
> suggestions what else I could try? Without ACPI (just APM) I 
> can't suspend, it immediately wakes up again.
> 
> --
> Regards,
> Georg.
> -- 
> Georg-W. Koltermann <g.w.k_at_web.de>