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howoarang last won the day on March 9

howoarang had the most liked content!

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About howoarang

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  1. howoarang

    Dell Precision M4800 - MacOS Sierra

    @tudt949 Yes, as you wrote. On my m4800 the speed process to sleep mode is also slowly than normal
  2. howoarang

    Dell Precision M4800 - MacOS Sierra

    no, it works with and also without power cable
  3. howoarang

    Dell Precision M4800 - MacOS Sierra

    Hi, it needs some time to sleep, but it works. On AC or on battery, the same result. USB, HDD, fans, screen goes to OFF. And also works wake from sleep pressing POWER button. So I think, it is good news
  4. howoarang

    Dell Precision M4800 - MacOS Sierra

    With AC power connected: Sleep works only for 2 seconds. If I press Sleep (booth works: Fn+F1 or AppleLogo+Sleep), system goes to sleep. Everything is OFF (Screen, fans, lights, HDD...), But after cca 2 seconds it automatically wake up (Fans, lights, HDD, USB...). But screen is still off, it wake up only after press any key on keyboard or mouse. On battery: The SAME result as with AC power
  5. howoarang

    Dell Precision M4800 - MacOS Sierra

    OK... 1. my MaciASL (1.4 269) can not open this SSDT-6.aml, so I don't see any changes you made, but it doesn't matter because IT WORKS!!! 2. internal display brightness can be changed with Fn+F3 and Fn+Insert key. Also with brightness slider too, in Display preferences REALLY THANKS Jake Lo!
  6. howoarang

    Dell Precision M4800 - MacOS Sierra

    For OSX boot only DSDT and one SSDT for CPU. There are these files and also original DSDT and all SSDT extracted under Windows using Aida64. m4800 for Clover.zip m4800 origin.zip
  7. howoarang

    Dell Precision M4800 - MacOS Sierra

    With optimus disabled, so only with k1100m, because I need DP output and it works only with k1100m. Brightness control doesn't work.
  8. howoarang

    Dell Precision M4800 - MacOS Sierra

    Yes, it works with latest version of CodecCommander.kext installed in SLE. And now some informations about sleep: With Fn+F2 keys, system can go to hybernate mode. But wake up doesn't. Clover recoignize, that system is hybernated, it boot and then restart. Sleep also doesn't work. Thanks
  9. howoarang

    Dell Precision M4800 - MacOS Sierra

    There is another problem with Sierra on this mobile workstation. I found not working audio output. Internal speakers works properly, also HDMI/DP output works, but if I connect headphones to 3,5mm audio output on the left side, it shows headphones connected, volume bars shows as working too, but withoud sound.
  10. howoarang

    Dell Precision M4800 - MacOS Sierra

    Hi, I have problem with USB ports on the left side too, under OSX. I think, it is caused with low power. This is my detection under OS Sierra on my M4800: If I want use some small or pocket USB key (it doesn't matter on capacity), it works properly via all of the USB ports (1, 2, 3, 4 and eSata) But, if I want use external HDD (fe. 2,5" HDD WD Elemetns 500GB), it works and shows as connected on USB 3.0 Bus only in one port on the right side (USB 3.0 speed) and also on eSata port (USB 2.0 speed). This HDD is connected via single cable.
  11. OK, let us know about your research. thanks
  12. OK. I think, that BIOS A16 and also the older versions are the same for both types of M4800 motherborad. So now, how the Mac OS works on your M4800? It is possible to run only with external monitor? And your internal 4k display doesn't work?
  13. howoarang

    Dell Precision M4800 - MacOS Sierra

    Hi, if you need, these files I'm using now for correctly boot M4800 to Mac OS Sierra. I recommended install Clover with this options and it is the same for USB Sierra installer and for boot Mac OS Sierra too: - Install for UEFI booting only - Install Clover in the ESP - Drivers 64UEFI -> CsmVideoDxe-64 -> OsxAptioFix2Drv-64 Also you have to set UEFI boot in BIOS, and DISABLE OPTIMUS. There are 3 kexts in SLE folder. These kexts you can install to your SLE folder after install Sierra on your disk. Its is not needed for USB Sierra installer. These kexts are for SOUND only. m4800 for Mac OS Sierra.zip
  14. howoarang

    Dell Precision M4800 - MacOS Sierra

    Hi, ok, I can share my config when I come home. But my system doesn't boot to osx with enabled optimus. I tested enabled optimus only with linux.
  15. howoarang

    need K2100M VBIOS from Dell Precision M4800

    Hi, thanks, but I don't need it anymore.