suspend/resume panic in ACPI..

Søren Schmidt sos at
Sat Aug 28 12:50:29 PDT 2004

Nate Lawson wrote:

>>>> There is no change, the systems all lock up hard on resume, on the 
>>>> two laptops (ASUS & Acer) the backlight doesn't even come on 
>>>> anymore....
>>>> Again reverting /sys/dev/acpica and /sys/i386/acpica back to aug 1st 
>>>> make things work (well almost, but that might not be ACPI's fault)...
>>> Please go through acpi_{button,cmbat,lid}.c and comment out the 
>>> foo_resume() code in each.  Let me know which one is the culprit if 
>>> this works.
>> Will do, but it will be awhile, I have "real work" that needs to be 
>> finished first.
> Any progress yet?  My guess is the cmbat resume code is giving you this 
> trouble.

OK, I played a bit with it. I commented out the resume code in 
acpi_cmbat.c (acpi_button.c and acpi_lid.c already has empty resume 

Now, if in single user the system comes back on resume, but it will 
double panic in a few seconds, if in multiuser it wont come back at all, 
  backlight off and sytem locked hard.

In short no progress, only fix is still to backstep acpi til aug 1st, 
then things work pretty well...


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