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Lenovo ThinkPad T420 with UEFI Only

K0gen

By K0gen,
in Installation Guides

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avdo
avdo
Posted
Posted

Yeah, lost sound since latest Lilu.kext

 

Latest version 88KB Previous version 245KB ??? Thats some thinning down there....

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tluck
tluck
Posted
Posted

Yeah, lost sound since latest Lilu.kext

 

Latest version 88KB Previous version 245KB ??? Thats some thinning down there....

 

sorry guys - i forgot update AppleALC kext - so I posted a new bundle with Lilu and AppleALC updated.

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SuperReaper
SuperReaper
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I'm just test High Sierra Beta, and it got a sleep problem. When I close lid to sleep, If I use default hibernatemode (3), it goes to hibernation mode and can not start up. If I turn off hibernationmode (0), It just panic(cpu 2 caller 0xffffff800038a611): Kernel trap at... And want more things, It cosume a lot of cpu even in idle, and cost more RAM compare to Sierra

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tluck
tluck
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I'm just test High Sierra Beta, and it got a sleep problem. When I close lid to sleep, If I use default hibernatemode (3), it goes to hibernation mode and can not start up. If I turn off hibernationmode (0), It just panic(cpu 2 caller 0xffffff800038a611): Kernel trap at... And want more things, It cosume a lot of cpu even in idle, and cost more RAM compare to Sierra

 

well resume from Hibernate (3) never worked as far as I know. have to change to mode 7.

 

but i use mode 0. it goes to sleep just fine - originally I did have KP on resume/wake from sleep. if i turn off the BT before sleep then no problem on wake. 

 

try this - if this is a fix, ie turn off BT... i am happy to share my sleepwatcher screens.

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SuperReaper
SuperReaper
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well resume from Hibernate (3) never worked as far as I know. have to change to mode 7.

 

but i use mode 0. it goes to sleep just fine - originally I did have KP on resume/wake from sleep. if i turn off the BT before sleep then no problem on wake. 

 

try this - if this is a fix, ie turn off BT... i am happy to share my sleepwatcher screens.

I just cannot use hibernate mode 7: 

Usage pmset options

See pmset(1) for details 'man pmset'

 hibernatemode supports values of 0, 3, or 25. Whether or not a hiberna-

     tion image gets written is also dependent on the values of standby and

     autopoweroff

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tluck
tluck
Posted
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yeah you will have to write to the file directly.

 

see /Library/Preferences/com.apple.PowerManagement.<UID>.plist 

 

Dict {
    Battery Power = Dict {
        Hibernate Mode = 7
        Wake On AC Change = 0
        Wake On Clamshell Open = 1
        AutoPowerOff Delay = 0
        Standby Delay = 10800
        TTYSPreventSleep = 1
        TCPKeepAlivePref = 1
        Hibernate File = /var/vm/sleepimage
        Standby Enabled = 1
        AutoPowerOff Enabled = 0
    }

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tluck
tluck
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sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/clemacos --applicationpath /Applications/Install\ macOS\ High\ Sierra.app --nointeraction &&say Done

Yes. having an up to date Installation USB is aways a good idea. I upgraded my T420 without any issue by downloading and running it directly from the HD

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Tetonne
Tetonne
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Terminal command for install without filesystem upgrade for the final installer:

Code:
/Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/startosinstall --converttoapfs NO

Agree to the License Agreement and a reboot should start.

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skoal2007
skoal2007
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yeah you will have to write to the file directly.

 

see /Library/Preferences/com.apple.PowerManagement.<UID>.plist 

 

Dict {

    Battery Power = Dict {

        Hibernate Mode = 7

        Wake On AC Change = 0

        Wake On Clamshell Open = 1

        AutoPowerOff Delay = 0

        Standby Delay = 10800

        TTYSPreventSleep = 1

        TCPKeepAlivePref = 1

        Hibernate File = /var/vm/sleepimage

        Standby Enabled = 1

        AutoPowerOff Enabled = 0

    }

But when I open this file , there are unreadable characters 

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tluck
tluck
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yes. everything works as before. the conversion does not mess with the other partition for windows. this is what my disk looks like now:

$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *512.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                 Apple_APFS Container disk1         459.7 GB   disk0s2
   3:       Apple_KernelCoreDump                         655.4 MB   disk0s3
   4:       Microsoft Basic Data C                       50.6 GB    disk0s4
   5:           Windows Recovery                         995.1 MB   disk0s5
/dev/disk1 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +459.7 GB   disk1
                                 Physical Store disk0s2
   1:                APFS Volume macOS                   314.9 GB   disk1s1
   2:                APFS Volume Preboot                 18.5 MB    disk1s2
   3:                APFS Volume Recovery                520.0 MB   disk1s3
   4:                APFS Volume VM                      8.6 GB     disk1s4
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tluck
tluck
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anyone got the HDD in the ultra bay to work in HS? thought it was just a beta bug but it still is not readable in the final build.

yeah I had issues with the bay drive since Sierra sometime ago, so i gave up using it. 

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verleihnix
verleihnix
Posted
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yes. everything works as before. the conversion does not mess with the other partition for windows. this is what my disk looks like now:

$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *512.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                 Apple_APFS Container disk1         459.7 GB   disk0s2
   3:       Apple_KernelCoreDump                         655.4 MB   disk0s3
   4:       Microsoft Basic Data C                       50.6 GB    disk0s4
   5:           Windows Recovery                         995.1 MB   disk0s5
/dev/disk1 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +459.7 GB   disk1
                                 Physical Store disk0s2
   1:                APFS Volume macOS                   314.9 GB   disk1s1
   2:                APFS Volume Preboot                 18.5 MB    disk1s2
   3:                APFS Volume Recovery                520.0 MB   disk1s3
   4:                APFS Volume VM                      8.6 GB     disk1s4

sounds good.

Is it better, faster?

do you feel a difference in speed?

should I stay with HFS+ or should I convert to APFS?

Hard questions, but may be you have an opinion.

 

Thanks again for all your efforts

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tluck
tluck
Posted
Posted

verleinix - the performance of HFS seems to still be better according some benchmarks i read about. but i went with APFS on my SSD (on both my hack and real macbook)

 

superkwn - well i dont know about that. the TrackPad code logic is pretty much contained in one file - VoodooPS2SynapticsTouchPad.cpp - so one read that and then compile in DEBUG mode to print out values etc.

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