Enable dual screen support on AMD Radeon 6870 under OS X 10.8

To enable the dual screen support on a multi-monitor Hackintosh equipped with an AMD Radeon HD 6870 under OS X Mountain Lion (this works with the current 10.8.4 too), enter the following shell code into your Terminal session:

sudo perl -pi -e 's|\x00\x04\x00\x00\x04\x03\x00\x00\x00\x01\x00\x00\x12\x04\x05\x01\x00\x04\x00\x00\x04\x03\x00\x00\x00\x01\x00\x00\x22\x05\x04\x02\x00\x08\x00\x00\x04\x02\x00\x00\x00\x01\x00\x00\x11\x02\x06\x04\x00\x02\x00\x00\x14\x02\x00\x00\x00\x01\x00\x00\x00\x00\x03\x05\x04\x00\x00\x00\x04\x02\x00\x00\x00\x01\x00\x00\x11\x02\x01\x03|\x00\x04\x00\x00\x04\x03\x00\x00\x00\x01\x00\x00\x12\x04\x04\x01\x00\x04\x00\x00\x04\x03\x00\x00\x00\x01\x00\x00\x22\x05\x05\x02\x00\x08\x00\x00\x04\x02\x00\x00\x00\x01\x00\x00\x11\x02\x06\x04\x00\x02\x00\x00\x14\x02\x00\x00\x00\x01\x00\x00\x00\x00\x03\x05\x04\x00\x00\x00\x04\x02\x00\x00\x00\x01\x00\x00\x11\x02\x01\x06|g' /System/Library/Extensions/ATI6000Controller.kext/Contents/MacOS/AMD6000Controller

This is a single line of a code, mind you. After the patch completes, rebuild the system cache using the following commands or any other method you prefer:

sudo touch /System/Library/Extensions
kextcache -system-caches

Reboot, and you’ll have dual screen support.

Locating Photo Stream files in Finder on OS X 10.8 Mountain Lion

If you ever wanted to access your Photo Stream files directly on your Mac, this one is for you, the files are located in:

~/Library/Application Support/iLifeAssetManagement/assets/sub/

Just hit command – shift – G in Finder and paste the above path and click Go. You’ll see a list of directories with random hashes, each containing a single file synced from the iCloud. To remove the directories from the view, filter by type Image, and optionally create a Smart Folder.

Updated fix for “Still waiting for root device” on OS X 10.8.3 Mountain Lion

Apple’s OS X Mountain Lion update to 10.8.3 has yet again modified the IOAHCIFamily.kext, resulting in a failed boot with the “Still waiting for root device” for only a small fraction of users compared to almost everyone with the 10.8.2 version. Most probably Apple techs have increased the enumeration delay, allowing for more devices to register properly. If you are one of these that are unable to boot properly after updating to OS X 10.8.3, check first if you still have /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext (it was missing on one of our machines after updating to the 10.8.3). There is also a known firmware incompatibility for Intel X25-M SSD owners, so if you own one and your system boots from it, you’ll need to update your SSD firmware. Otherwise, apply the patch listed below.

WARNING: Don’t copy-paste everything into the Terminal at once, do it one line at a time. Pasting the whole code at once will result in the second half of the commands being used as your password at the first sudo command.

The following commands place a backup of the unmodified binary before patching it.

cd /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS
sudo mv IOAHCIBlockStorage IOAHCIBlockStorage.orig
sudo cp IOAHCIBlockStorage.orig IOAHCIBlockStorage
sudo /usr/bin/perl -pi -e 's|\xcb\x57\x00\x00\xee\x03|\xcb\x57\x00\x00\xea\x01|g' IOAHCIBlockStorage
sudo /usr/bin/perl -pi -e 's|\x74\x0e\x48\x8d\x3d\x72\x94\x00\x00|\xbf\xc8\x00\x00\x00\x90\x90\x90\x90|g' IOAHCIBlockStorage
sudo touch /System/Library/Extensions

This fix has been made possible due to countless hours spent by bcc9 from InsanelyMac forums reverse-engineering Apple’s work and his original script.

LaCie 5big Thunderbolt 20Tb Blackmagic Disk Speed Tests

LaCie 5big Thunderbolt 10Tb and 20Tb models are the latest storage solutions available for video production professionals. The Thunderbolt interface virtually unlocks the bandwidth limitation for the connected appliances, making the transfer speeds limited only by the underlying storage adapter and media capabilities.

LaCie 5big ThunderboltThe LaCie 5big Thunderbolt 20Tb model comes with 5 preinstalled Seagate Barracuda XT 4Tb 7200RPM ST4000DX000-1CL160 hard drives that are able to push up to 180MB/s sequential read/write speeds on a single drive. Unfortunately there is no RAID5/6 support, but you can mix RAID1 and RAID0 groups via the Disk Utility. Continue reading