Dell ACPI & S3 resume problems.

[Rui Paulo]

On Wed, Jul 02, 2008 at 05:14:30PM +0200, Olivier Fauchon wrote:
> 
> Hi,
> 
> When I try to resume from S3 on my DELL Latitude D430 by pressing power 
> button, the laptop reboots.
> 
> I tried the same test with a Knoppix Live CD, and It passes (Laptop 
> revives although LCD is buggy).
> But I could type "shutdown -r now" blindly, to confirm it wakes up properly.
> 
> Now I need help to find out the differences between FREEBSD and LINUX 
> which makes resume fail.
> 
> You'll find here all collected informations:
> 
> * Verbose Booting with FreeBSD7  
> http://www.aixmarseille.com/pub/acpi_fb7_casino/boot_verbose_d430_FB7.log
> * Booting with Knoppix dmesg  
> http://www.aixmarseille.com/pub/acpi_fb7_casino/dmesg_knoppix_d430.log
> * Dell LAtitude D430 original ASL: 
> http://www.aixmarseille.com/pub/acpi_fb7_casino/dell-d430.orig.asl
> * Patched ASL (which only correct a LID and warning problems) 
> http://www.aixmarseille.com/pub/acpi_fb7_casino/dell-d430.patched.asl
> * Kernel configuration : 
> http://www.aixmarseille.com/pub/acpi_fb7_casino/kern_conf_CASINO.txt
> * lspci : http://www.aixmarseille.com/pub/acpi_fb7_casino/lpsci.txt
> 
> Can someone explains me what are the main steps of a resume, so I can 
> try to troubleshoot further.

Well, your best bet is to disable every driver and make them modules. Boot
with the bare minimum necessary for input/output and in single user mode.
Try suspend and resume in single user mode. If that works, the problem, 
most likely lies in the drivers.

Try enabling one driver at a time, and retest suspend/resume. This way
you can find the problematic driver, if any.

Also, try changing the hw.acpi sysctls, namely reset_video.

HTH,
-- 
Rui Paulo