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Glitches on boot

boot glitches apple logo login screen

Best Answer radargb, 22 August 2014 - 01:46 PM

hello

 

see here and post before

 

            #331            

 

must patch the iographicsfamily.kext

 

good hack

 

 

Artur-pt you are the boss !! ;)

Ive used this patch and it solved my problem:

 

<key>KernelAndKextPatches</key>
<dict>
	<key>KextsToPatch</key>
	<array>
		<dict>
			<key>Comment</key>
			<string>Second Stage Boot1</string>
			<key>Find</key>
			<data>
			hcB0XUg=
			</data>
			<key>Name</key>
			<string>IOGraphicsFamily</string>
			<key>Replace</key>
			<data>
			McB0W0g=
			</data>
		</dict>
        <dict>
            <key>Comment</key>
            <string>Second Stage Boot2</string>
            <key>Find</key>
            <data>
            QYjE6wM=
            </data>
            <key>Name</key>
            <string>IOGraphicsFamily</string>
            <key>Replace</key>
            <data>
            QYjE6yM=
            </data>
        </dict>
    </array>
</dict>
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10 replies to this topic

#1
radargb

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Ive menaged to make almost fully working Yosemite on my laptop, but one thing annyoing me so far.

 

Im having weird screen glitches on boot.

There is proper white apple logo with progress bar, and then it gets glitchy just a moment before login screen. After that everything is fine.

Realised that problem doesnt occur when im booting with external monitor plugged in.

 

Anyone having this issue? Or maybe some clues how to fix it?

 

First stage of boot:

Attached File  DSC06129.JPG   153.34KB   32 downloads

 

Second stage of boot (just before login screen):

Attached File  DSC06130.JPG   161.34KB   40 downloads



#2
artur-pt

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hello

 

see here and post before

 

            #331            

 

must patch the iographicsfamily.kext

 

good hack



#3
radargb

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Best Answer

hello

 

see here and post before

 

            #331            

 

must patch the iographicsfamily.kext

 

good hack

 

 

Artur-pt you are the boss !! ;)

Ive used this patch and it solved my problem:

 

<key>KernelAndKextPatches</key>
<dict>
	<key>KextsToPatch</key>
	<array>
		<dict>
			<key>Comment</key>
			<string>Second Stage Boot1</string>
			<key>Find</key>
			<data>
			hcB0XUg=
			</data>
			<key>Name</key>
			<string>IOGraphicsFamily</string>
			<key>Replace</key>
			<data>
			McB0W0g=
			</data>
		</dict>
        <dict>
            <key>Comment</key>
            <string>Second Stage Boot2</string>
            <key>Find</key>
            <data>
            QYjE6wM=
            </data>
            <key>Name</key>
            <string>IOGraphicsFamily</string>
            <key>Replace</key>
            <data>
            QYjE6yM=
            </data>
        </dict>
    </array>
</dict>


#4
Ramalama

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I have it almost working with "Second Stage 2" Cover patch, but there is just a small loader glitch:

 

Is this fixable? (Attached)

 

Intel Iris 5100/i7-4558U

Attached Files



#5
spitjo

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Thanks, i was having the same issue and the clover patch suggested partially solved it.

But for a very little time (something like less than a second) just before the progress bar start to accelerate i still see the glitched apple....

Is this fixable??



#6
Dwors

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Hi guys, I'm having this same exact issue during boot. The strange glitchy apple logos. I don't know what patching kexts is or how to go about doing it. Can someone please direct me? Thank you so much!



#7
snoozepops

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I'm sorry , but will this patch fix the graphics glitches on a chameleon installation also?



#8
eterea

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Hi.

I have the same problem, but I'm using Chamaleon or Chimera. 

 

Is this solution only for clover? 

 

Thank you very much.



#9
>Federico<

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For Chameleon Users:

 

Edit IOGraphicsFamily.kext/IOGraphicsFamily with an Hex Editor 

 

For 2nd Stage Boot1

 

Find (HEX): 85C0745D48

and Replace with: 31C0745B48

 

For 2nd Stage Boot2

 

Find always in HEX: 4188C4EB03

and Replace with: 4188C4EB23

 

Save it.

Repair permission and cache with kext utility for example. Reboot

 

 

For Lazy people: just download the kext already edited below.

Attached Files



#10
cuthead

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use this kext patches in my clover,boot to yosemite,when arrive the progress bar moving section,OS X reboot.Seems like doesn't work for me.



#11
eterea

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I have installed Clover.
 
And Artur-pt's patch works. 
 
Thank you.






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