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[Guide] Bypass the white screen for ATI HD 7xxx (10.8.3)


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#1
Scellow

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Hi everyone,

Actually there is 2 solution to bypass the white screen :



1 ) The sleep trick
(Manual method)

Spoiler





2 ) The rotation trick recommended.gif
(Automatic method)

A ) If you have only 1 display



Spoiler





B ) If you have 2 or more display



Spoiler




Thanks to dwbr and Ostrich Egg for the rotation trick and pernacabeluda for FBRotate

#2
amsk98

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thanks its works for me

#3
maleorderbride

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This does not help me---monitors just stay white and sleep does not work on this machine.

i downloaded this, put in my applications folder, then added it to login items and set auto-login. Then restarted.

Do I need to do any configuration with the app first in some fashion? or something else?

#4
Scellow

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This does not help me---monitors just stay white and sleep does not work on this machine.

i downloaded this, put in my applications folder, then added it to login items and set auto-login. Then restarted.

Do I need to do any configuration with the app first in some fashion? or something else?


Hi, it's because the system want to launch an app wich is not from Mac Store, so it popup an message to confirm launching like the picture, but you can't see it because of the white screen problem so you just need to launch it at least once manually to allow it :)
Posted Image



If that still don't work try to boot with this bootflag : GraphicsEnabler=No

#5
maleorderbride

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I'll give that shot--thanks! Makes sense.

#6
yomelolio

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with two monitors only works in the primary, is there any way to make ir work on both?

#7
Scellow

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Yes you can :) , i updated the post just read " B ) If you have 2 or more display "

#8
maleorderbride

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Thanks scellow! I got one monitor working yesterday and now should be able to get the second going as well. ;)

#9
koriwi

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For me it doesnt work :/
but when i disable the 7000.kext and i boot without -x my screen freezes (how it should) because of fbrotate in autostart(sorry for my windows language)

#10
tubbiesss

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Thanks for compiling the different methods.
I can get the sleep trick to work, but I'd rather have something automated.
I'm trying to get the rotation trick to work to no avail.
It seems "Login Items" isn't activated during the white screen. All script runs after I successfully boot in using the sleep trick.
Any idea why it doesn't run at the white screen and how to fix it?
Thanks again.

#11
koriwi

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tubbiesss: Same for me. What are we doing wrong

#12
tubbiesss

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@ koriwi
I'm trying it on a 7870 as well. Could that be the reason? :worried_anim:

#13
koriwi

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I heard from several post, that it worked with the sleeptrick for them. But i never heard of a 7870 work with rotate trick :S

#14
tubbiesss

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I heard from several post, that it worked with the sleeptrick for them. But i never heard of a 7870 work with rotate trick :S

Actually there are at least two posts from a different forum of success using the rotate trick on a 7870 but both are the OC version :(

#15
koriwi

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I got the xfx 7870 1ghz double dissipation thing. which framebuffer should we use ?

Edit: Not the black edition, which is 50mhz overclocked. I got normal 1 ghz speed

Edit II: On OSX 86 i found commentaries about the fbrotate app. and every 7870 that worked were the overclocked modells.
One comment with a normals 7870 says it doesnt work for him.

#16
Scellow

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Hey guys,
Did you try with this bootflag ?
GraphicsEnabler=No


#17
koriwi

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Sure :/ (iam reading half of google before i post something :P)



#18
tubbiesss

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I got the xfx 7870 1ghz double dissipation thing. which framebuffer should we use ?

Edit: Not the black edition, which is 50mhz overclocked. I got normal 1 ghz speed

Edit II: On OSX 86 i found commentaries about the fbrotate app. and every 7870 that worked were the overclocked modells.
One comment with a normals 7870 says it doesnt work for him.

I've actually tried all 7xxx fbs  :blush:  but sadly none worked for me  :(

But I am not certain if I'm using the correct fb flag, because they don't seem to have any effect.

 

Sad to hear that there are now 3 cases of non-working sleep trick on a standard 7870  :(

 

There's a recent post at tony's about the 7870 that got me excited at first (I think he got the same card as you), but turns out he's using integrated graphics. I can boot in easily with a 2nd card without the need of deleting kexts. 

Btw are you currently booting in using integrated graphics or a 2nd VGA as well?

I'm currently booting using an old PCI card as my first display, but since it's a really old card, it's causing a lot of lag even on my main display.

And if you're using integrated graphics, do you experience the same kind of lag?

I'm now trying to figure out if I can disable the PCI card after I boot in. If I can have that, and if lag can be eliminated after that, I'll be happy enough.

Right now I'm just putting my system to sleep when I leave it for the night.

 

 

Hey guys,
Did you try with this bootflag ?

GraphicsEnabler=No

Yup :)

We need that flag to boot in, but the problem is, we can't get the rotate trick to initiate at the white screen.



#19
TechGuru

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http://www.youtube.c...h?v=XOUj47pSvyc



#20
koriwi

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@teletubie:

 

i switched my motherboard to an asus one now which i got from ebay for 25 euros, it got integrated graphics and fast boot :D (didnt even noticed that)

but i get appleacpi something error with kernelpanic. iam not able to boot in at the moment without deleting the 7000.kext.

 

@alexis:

 

we know how to apply these things with fbrotate, but it just stays white for us, when i boot without the 7000.kext i see that fbrotate is executed automatically. but not when i boot with the kext.







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