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[Guide] Backlight + Brightness for Intel 8086:0046 (1st gen HD) (GMA 5700MHD)

first generation HD backlight brightness ACPI DSDT 8086:0046 GMA 5700MHD Ironlake Arrandale

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#161
RiskyRis

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Is this fine ??? :cry: , My BAR1 is starting with 0x9

 

Device/Vendor ID    0x00468086
Revision ID    0x18
Class Code    0x030000
Cacheline Size    0x00
Latency Timer    0x00
Interrupt Pin    INTA
Interrupt Line    None
BAR1        0x90000004
BAR2        0x00000000
BAR3        0x8000000C
BAR4        0x00000000
BAR5        0x00003051
BAR6        0x00000000
Expansion ROM    0x00000000
Subsystem ID    0x06031025

 

 

 

 

 

EDIT : Yay :D , its working now, thanks mnorthern, yayayay, happy to not using shades again :thumbsup_anim: ,thanks a ton mnorthern
 


Edited by RiskyRis, 14 June 2014 - 01:57 AM.


#162
Nys

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(acer travelmate 5742z laptop)

 

thanks to ghost raider and mnothern, I was able to solve the problem  :) (all dsdt errors must be fixed and _SB part in the guide is important to notice.)



#163
nixones

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Brightness is working on my Acer Aspire 4740 (Intel Core i5 430M) but I have two little problems :

 

1st. When I use the Functions Keys (Fn + Left Arrow and Fn + Right Arrow) to change to Brightness intensity, is only working the Fn + Right Arrow to increase brightness but I can't decrease the brightness, I need to go to System Preferences to decrease brightness with the bar.
 
2nd. When I reboot/shutdown the laptop, the brightness values are reseted to the maximum value so I must adjust the brightness values again.
 
Please, is there a solution for this ? 


#164
oasisero

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HI everyone! i'm new in this. and i wonder if someone can patch my dsdst.aml for backlight after sleep mode, because the lcd powers on but backlight still off and i have to reboot the system to work again.
i'm not really interested in brightness adjust, but i really need the backlight patch
thanks!
 
P/s: i don't know anything about patching dsdt or programming, so if someone can help me with this.. it will be very appreciated, by the way, this forum is amazing.

 

here are my screen capture of BAR1 and my original dsdt without patches.

 

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Also tagged with one or more of these keywords: first generation HD, backlight, brightness, ACPI, DSDT, 8086:0046, GMA, 5700MHD, Ironlake, Arrandale


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