Originally Posted by djsven
Now it would realy interessting, if we have to activate this feature with kernel.
There are no technical documents about with device, driver etc?
What we have to change inside kernel source code?
I don't know if it's a kernel feature, but you can check to see if it's active on your device with dumpsys. I did it in terminal:
Look for Qualcomm HWC State section. If you see DisplayPanel=9, your device is using GRAM or self panel refresh.
Edit: I'm using PAEK v5.2, and it's DisplayPanel=9. I won't be surprised if it's this way on every G2 kernel.