screen is Very Very dark

[hjurn]

It is ML 10.8.4 Basic Screen
I Settled Samsung Laptop Samsung-700z5b Model Screen Distortion
But Screen is Very Very Dark
What does need to be addressed?


Samsung Series 7 Chronos (NP700Z5B-S01UB)


Intel Core i7 2670QM
Intel Sandy Bridge Chipset (rev 09)
Intel HM65 South Bridge (rev B2)
BIOS Version 13FD
8GB RAM
Intel HD Graphics 3000 / Radeon HD6490M

 

[RehabMan]

View attachment 64826
It is ML 10.8.4 Basic Screen
I Settled Samsung Laptop Samsung-700z5b Model Screen Distortion
But Screen is Very Very Dark
What does need to be addressed?


Samsung Series 7 Chronos (NP700Z5B-S01UB)


Intel Core i7 2670QM
Intel Sandy Bridge Chipset (rev 09)
Intel HM65 South Bridge (rev B2)
BIOS Version 13FD
8GB RAM
Intel HD Graphics 3000 / Radeon HD6490M

Did you try PNLF DSDT patch for brightness:

#   Brightness control fix
into device label PNLF remove_entry;
into scope label \_SB insert
begin
Device (PNLF)\n
{\n
	Name (_HID, EisaId ("APP0002"))\n
	Name (_CID, "backlight")\n
	Name (_UID, 0x0A)\n
	Name (_STA, 0x0B)\n
}\n
end;

 

[hjurn]

Your solution was possible thanks to the brightness option
However, even at maximum brightness is still dark.
How do I fix?

Samsung Series 7 Chronos (NP700Z5B-S01UB)


Intel Core i7 2670QM
Intel Sandy Bridge Chipset (rev 09)
Intel HM65 South Bridge (rev B2)
BIOS Version 13FD
8GB RAM
Intel HD Graphics 3000 / Radeon HD6490M

 

[RehabMan]

View attachment 64900
Your solution was possible thanks to the brightness option
However, even at maximum brightness is still dark.
How do I fix?

Samsung Series 7 Chronos (NP700Z5B-S01UB)


Intel Core i7 2670QM
Intel Sandy Bridge Chipset (rev 09)
Intel HM65 South Bridge (rev B2)
BIOS Version 13FD
8GB RAM
Intel HD Graphics 3000 / Radeon HD6490M

It could be EDID issue. You can inject EDID in DSDT. See: http://www.tonymacx86.com/mountain-...orks-though-intel-hd-3000-a-4.html#post648787

 

[hjurn]

Tried in that way, but did not fix

 

[RehabMan]

Tried in that way, but did not fix

Did you check your work? (eg. look in ioreg explorer for the EDID injection under GFX0 device).

You might also try ACPIBacklight kext for controlling brightness...

 

[hjurn]

I look on ioreg checked EDID injection under GFX0 device
But as it is....

 

[RehabMan]

I look on ioreg checked EDID injection under GFX0 device
But as it is....

Try ACPIBacklight...

 

[hjurn]

I Tried Install ACPIBacklight.kext
But Disabled BrightControl And DisplaySetting see BrightControl but NotControlled...

 

[RehabMan]

I Tried Install ACPIBacklight.kext
But Disabled BrightControl And DisplaySetting see BrightControl but NotControlled...

I don't know what you mean by 'But Disabled BrightControl And DisplaySetting see BrightControl but NotControlled'

But make sure you followed all instructions for using ACPIBrightness (which involves DSDT edits...)