RehabMan
Moderator
- Joined
- May 2, 2012
- Messages
- 181,011
- Motherboard
- Intel DH67BL
- CPU
- i7-2600K
- Graphics
- HD 3000
- Mac
- Mobile Phone
I like to keep my system as 'clean' as possible. With patches being made only if necessary. In 10.8.x, where 'x' is 2 or less, I needed this patch to boot from HDD. But in 10.8.3 or when booting from my SSD, I did not need the patch.
You can undo the patch by restoring IOAHCHFamily.kext from the "Installer Backups" on your Desktop (Kext Wizard). Then repair permissions & rebuild cache. Then reboot. If you can boot ok, then great, you didn't need the patch. If you can't boot (gets hung up on "waiting for root device..." in verbose boot), then boot with "-f" and re-apply the AHCI patch.
Most people with 10.8.3 do not need it.
Pstates are "performance states." Each state corresponds to a higher CPU "multiplier." Larger multipliers give better CPU performance, but more power consumed and more heat created. The OS monitors CPU load and sets the pstate higher for higher CPU loads. This way you get more performance when your CPU is busy and less when it is not (because it is not needed) in order to use less power and allow the CPU to cool easier. This is called OSPM in the ACPI spec (OS Power Management) and in the case of OS X, is implemented by AppleIntelCPUPowerManagement.kext with the data about your CPU from SSDT.
For your battery situation, you should check Activity Monitor to see if there are any background tasks using CPU (or other) resources. Also, have you installed any third party software that might run in the background. Battery life also depends a lot on what you're doing with the computer while on battery.
I get more than 3 hours from my 4530s (I've never really officially measured it), but it has only a Core-i3. Also, Ivy PM should still be considered a "work in progress" at this point. Only through reports and investigations by people with issues such as yours can it be tested and improved.
ProBook will not wake from sleep except from the power button. Screen saver is different than sleep. What you describe is behavior when the computer is sleeping, not in the screen saver or display sleep. It should wake from the screensaver or a "screen sleep" with a touch or key.
As far as the touchpad multi-touch implementation, the following gestures are implemented:
- single, two, and three finger tap to click
- double tap+hold drag (if enabled)
- two finger scrolling
- three finger swipe
No other gestures are implemented at this time. The trackpad driver is not true multi-touch primarily because Apple does not document the mechanisms a driver should use to implement it. As a result, these features are implemented as mouse/keyboard emulation to the degree that IOHIPointing/IOHIKeyboard allows. Not to mention that multi-touch at the hardware level on this trackpad is pretty poor, both from the stand point of the amount of information provided and the reliability of the data.
For three finger swipes to work, you must assign them to functions in SysPrefs -> Keyboard -> Keyboard Shortcuts. Do some searches in the trackpad thread if you can't figure it out. Hint: when it asks you to type the key, do the three finger swipe gesture.
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