Black Screen after Sleep/WakeUp - Brightness is set to 0

[Flexigem]

Ok. So after setting the hibernate mode to 0 and applying patches to the DSDT from the Repo. It seems that my Samsung is quite happy now with Yosemite 10.10.2

Still remaining issues are to be ironed out. Actual problem is, that after wakeup there is no restart anymore but the screen stays dark. Doing a single keypress with brithness brings it back. Am I missing a patch in my DSDT or elsewhere?


And one more if we are at it. The P States of my Pre-Sandybridge processor Core i5 520M / 2.4 GHz are shown around 4 or 5 if I remember starting with 9. For older processors it is recommended to set C and P states to yes without SSDT Tables. Can I improve upon this? It seems that battery drain is quite high.

 

[RehabMan]

Ok. So after setting the hibernate mode to 0 and applying patches to the DSDT from the Repo. It seems that my Samsung is quite happy now with Yosemite 10.10.2

Still remaining issues are to be ironed out. Actual problem is, that after wakeup there is no restart anymore but the screen stays dark. Doing a single keypress with brithness brings it back. Am I missing a patch in my DSDT or elsewhere?


And one more if we are at it. The P States of my Pre-Sandybridge processor Core i5 520M / 2.4 GHz are shown around 4 or 5 if I remember starting with 9. For older processors it is recommended to set C and P states to yes without SSDT Tables. Can I improve upon this? It seems that battery drain is quite high.

Did you implement backlight control?

http://www.tonymacx86.com/yosemite-...ching-dsdt-ssdt-laptop-backlight-control.html

Did you implement power management?

http://www.tonymacx86.com/yosemite-laptop-support/146870-guide-native-power-management-laptops.html