Re: can't read battery, dsdt bugged?

"Randy.Dunlap" <[email protected]> Tue, 23 Nov 2004 07:05:12 -0800
Newsgroups gmane.linux.power-management.devel
Organization OSDL
Message-ID <[email protected]>
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ultrakorne wrote:
> Hi, i have a acer laptop (travelmate 4501LCi) and i have installed 
> ubuntu warty 4.10 (kernel 2.6.8.1)
> the battery applet didnt works... this because /proc/acpi/battery/ is 
> empty!
> ps -e | grep acpi
>     5 ?        00:00:00 kacpid
>  3977 ?        00:00:00 acpid
> 
> so i disassembled my dsdt to see if i get compiling errors.. i only get 
> 3 warnings. here comes the first question, i got only warning no 
> errors.. so my dsdt is ok or the cause i cant read my battery is those 3 
> warnings?
> 
> i tryed to fix this out, i fix the first, but not the last 2.
> 
> first warning:
> dsdt.dsl   245:     Method (_WAK, 1, NotSerialized)
> Warning  2026 -                ^ Reserved method must return a value (_WAK)
> 
> i fix this adding this line at the end of the involved method
> Return(Package(0x02){0x00, 0x00})
> just before the last }
> 
> the others to warning are on the same line:
> dsdt.dsl  4508:                         Method (_STA, 0, NotSerialized)
> Warning  2019 -                                    ^ Not all control 
> paths return a value (_STA)
> 
> dsdt.dsl  4508:                         Method (_STA, 0, NotSerialized)
> Warning  2026 -                                    ^ Reserved method 
> must return a value (_STA)
> 
> this is a big if statment with an else Return (0x08)
> 
> i just remove the last else return and i left only the return...
> 
> now compiling error are 0. are those fixes correct?
> and the most important thing, could those warnings be my problem... if 
> not what should i check?


-- 
~Randy


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