parrot5

Thanks. I installed the DSDT, removed NullCPUPowerManagement, and now it sleeps fine. It wakes, but USB ports don't work until a reboot. (Unplugging and replugging doesn't restore function. Looks like there is no power to the USB drive or WiFi dongle at all.) Internal Bluetooth module sometimes disables itself after a reboot. Booting into Windows and back seems to bring it back to life for now. There is one other thing I cannot solve: Maps load a blank map, whether in map or satellite modes. It knows my favorite places and history, and I can see the pins, but the map tiles are empty. Does this resolve itself once I get a compatible internet WiFi/BT card? Thx again!

Thanks, Jake, for your replies and helpful tutorials! I've finally gotten Yosemite to install and boot fine on my T410 with 1st gen Intel HD Graphics. The main difficulty was that my laptop randomly boots even with the wrong framebuffer kext on the installation USB. After days of trying, I ended up using the Alternate one and the installer boots consistently. One thing is curious though. After installing successfully, I constantly got a black screen upon boot, and had to use a working Mac OS X located on another partition to install all the AppleIntelHDGraphics*.kexts into the Yosemite partition. With the graphics kext out of the way, the rest of the issues were newbie-related. Eg. not booting with -f after installing kexts -> it doesn't boot -> wrongly assumed it was a graphics issue again. Now I learned to use -f after any installation of kexts or system updates. It was a slow process installing and testing kexts one by one, but I've finally got the keyboard/trackpad, audio, ethernet, WiFi via USB, AppStore (ethernet was not en0)... Maybe I'll slowly tackle the other issues, like sleep and hibernation...

UPDATE #2: Installed fine. After installation, couldn't boot from the USB to the HDD, even with -x -f -v. Tried two more times and it booted!! (I really used the same arguments!) UPDATE: wait, the installer loaded fine after my 5th try, this time with -x -f -v. Fingers crossed. Original text: Thanks for replying. I tried your guide, then replacing the two kexts with kextwizard, initially just in S/L/E on the USB, then same problem. So I also installed them in Extra on the USB. Did the repair and rebuild cache after. Same problem. Does it have to do with my monitor has resolution of just 1200x800? (I think some have 1366).

I tried that, but same results, booting stopped after some Bluetooth component starts. Tried the 10.10.2 files, and then the 10.10 files. I could install 10.6.8 fine, just had to delete the kexts you mentioned before the restart. But somehow Yosemite USB refuses to finish loading, always stuck at the same place. I've also tried re-creating this USB 3 times, on 3 different thumb drives with the same result. Any other ideas? What can I use instead of unifail to create an USB installer?

Hi Barki, may I ask which guide did you use to get Yosemite installed on your T410 with Intel Graphics? I tried creating the USB with unifail but couldn't boot to the installer. Always hangs at the end of Bluetooth controller start. Tried the many suggested boot flags also. MyHack hasn't been updated for Yosemite (which the Extra pack mentioned here uses.) I have a working 10.6.8 on the T410 and downloaded Yosemite, but afraid to mess up this installation by running the upgrade, so trying to install Yosemite fresh on another drive. Thanks for helping out.