{"id":1774,"date":"2012-06-07T14:16:42","date_gmt":"2012-06-07T14:16:42","guid":{"rendered":"http:\/\/www.dognmonkey.com\/techs\/?p=1774"},"modified":"2015-05-06T23:21:25","modified_gmt":"2015-05-07T06:21:25","slug":"edit-appleintelsnbgraphicsfb-kext-for-lion-sandy-bridge","status":"publish","type":"post","link":"https:\/\/www.dognmonkey.com\/techs\/edit-appleintelsnbgraphicsfb-kext-for-lion-sandy-bridge.html","title":{"rendered":"Edit AppleIntelSNBGraphicsFB.kext For Lion Sandy Bridge"},"content":{"rendered":"

For those who have Intel HD3000 graphics on desktop or laptops, sometimes we see the screen blacked out for a few seconds and back again, I believe according to bcc9<\/a>, we need to edit the AppleIntelSNBGraphicsFB.kext in the Extensions folder. It’s was hard to follow the instructions since I don’t know much about codes, but by following the thread, here is how I did mine (this one is actually for ML-but it’s the same) – I did this one for Asus p8Z68-V LX Snow Leopard 10.6.8 and I got full resolution but no QE\/CI\/CL. <\/em><\/p>\n

Open a terminal and log in as administrator<\/em><\/p>\n

\n

sudo -s<\/em><\/p>\n

cd \/System\/Library\/Extensions\/AppleIntelSNBGraphicsFB.kext\/Contents\/MacOS<\/pre>\n
dd if=AppleIntelSNBGraphicsFB of=\/tmp\/table bs=1 skip=173552 count=60<\/pre>\n
cd \/tmp<\/pre>\n
xxd -c 12 < table > hex<\/pre>\n
cat hex                    \/*now from here I got the hex file looks just like what bcc9 screen - I believe all AppleIntelSNBGraphicsFB.kext reports the same *\/<\/pre>\n<\/blockquote>\n
\"AppleIntelSNBGraphicsFB<\/p>\n
Now we have a hex file in the \/tmp folder which we need to edit. I used HexEdit <\/a>for Mac to open the file, it doesn’t let me to edit directly, so I have to save it to “hex1” and edit this file.<\/em><\/p>\n
<\/em>\"HexEdit<\/a>\u00a0\u00a0\u00a0\u00a0 \"save<\/a><\/p>\n
Now I can go to the right column to change the contents of each address described in the bcc9 instruction, carefully and not to make mistake. As I modifying the right side, the left side changing accordingly.
\n<\/em><\/p>\n
<\/em>\"Address<\/a>\u00a0\u00a0\u00a0\u00a0 \"Address<\/a><\/p>\n
\"Address<\/a>\u00a0\u00a0\u00a0\u00a0 \"Address<\/a><\/p>\n
\"Address<\/a>\u00a0\u00a0\u00a0\u00a0 \"Save<\/a><\/p>\n
\n
xxd -c 12 -r \/tmp\/hex1 >! table<\/pre>\n
dd if=table of=\/System\/Library\/Extensions\/AppleIntelSNBGraphicsFB.kext\/Contents\/MacOS\/AppleIntelSNBGraphicsFB bs=1 seek=173552 conv=notrunc<\/pre>\n
touch \/System\/Library\/Extensions<\/pre>\n<\/blockquote>\n
\"final\"<\/p>\n
I also use myfix to run and update all kexts.<\/em><\/p>\n
Yes, I don’t see the black outs any more on my DVI screen.<\/em><\/p>\n
Cheers and thanks bcc9 for the tutorial (he doesn’t want to upload the edited kext online – he wants people to learn how to do it – that’s a good thing).<\/em><\/p>\n
<\/em>