suspend/resume panic in ACPI..

Nate Lawson nate at
Sun Aug 29 16:29:22 PDT 2004

Søren Schmidt wrote:
> 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.
> 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 
> functions).
> 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.

More info about the panic (i.e. message, backtrace, etc.) would help here.

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

Try reverting just acpi.c to Aug. 1.  Narrowing down which change is 
causing you a problem would help.


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