InfiniteMac OSx86 - View Single Post - DSDT editing needed to fix brightness/sleep HP DV3XXX

uman · 03-02-2010, 05:12 PM

uninc,

I'm am still not sure what your issue is. Is it:

1. When returning from sleep, your display doesn't wake up, or the screen is very dim? If so, there's a DSDT fix for that.

2. You can't control the brightness from the keyboard?

3. The keyboard does control the brightness, but the OS X "sun" icon doesn't display? (I have that problem-- when controlling sound from my keyboard, I see the speaker icon, but not when controlling brightness.

Re PS2: If you don't have a PS2K device in your DSDT, then you probably have a USB keyboard and mouse which is good! So I wouldn't add the PS2K device into your DSDT. (The sure way to tell whether you have PS2 keyboard or mouse is if during install, you needed VoodooPS2Controller.kext, or ApplePS2SomethingOrOther.kext.)

I find that the people who are doing the most advanced DSDT work are the Gigabyte mobo folks. Unfortunately there are pages upon pages of cruft to wade through on insanely, not to mention the ACPI Programmers guide, and the datasheets for your motherboard chipset. Even here, the Gigabyte topics are lengthy. But good on them-- they have the passion.

Try using google search to help cut down on the cruft:

site:www.insanelymac.com HP DV3510nr DSDT brightness

turned up some of your posts, but also: http://www.insanelymac.com/forum/ind...&#entry1095891

You could also try this: http://www.splasm.com/products/productbrightness.html

Hmm, your laptop has an nvidia display right? Can you check if AppleIntegratedFrameBuffer is loaded (use kextstat in terminal). Apparently that kext takes control of brightness (LCD backlight). There's a patch that gets it to relinquish control (see the comment by Timo: http://blog.stuart.shelton.me/archives/209)

Can you post your unmodified (original) DSDT? I'd need to see if your LCD panel has a _DSS method defined to control brightness. Macbooks (and my Gateway) don't. The _DSS method is where you see some people suggesting fixes where they use 0x86, 0x87, 0x89 to cycle, increase, decrease or zero brightness. But that doesn't work unless your hardware is defined that way. The ACPI spec has details on that.

I can't promise that I can examine your DSDT right away (and I made need a gentle nudge as I might forget), since I am installing SL over the next day or two. But I'll try to look into it later this wee or early next week. I'm curious how this wholething works because I'd like to get the litle sun icon to show up on my gateway!

Cheers.