stevezhengshiqi
commented
4 years ago @gplast Thank you for testing. However, I don’t have XiaoMiPro to conduct any test. Until release v1.3.3, we use SSDT to disable discrete graphic card. You can extract SSDT-DDGPU from previous release packs.
Because WhateverGreen has a property disable-external-egpu which does exactly the same thing as SSDT-Disable_DGPU, and it’s a “cleaner” way to disable DGPU(less modification on ACPI), the SSDT way may not be considered anymore.
To check whether MX150 is disabled, you can open IORegistoryExplorer and check device tree RP01. If the PXSX device is not detected, we may consider the device is disabled and system won’t assign power to the undetected device.
UPDATE: I am not sure if disable-external-egpu does the same thing as the ACPI method. I will have better idea after I review the code of WhateverGreen. If the SSDT method shows a clear boost on power saving, we can add SSDT-DDGPU back.
Menchen
Hello again and thank you again for all this great effort and support.
I commented on a previous thread (https://github.com/daliansky/XiaoMi-Pro-Hackintosh/issues/224#issuecomment-559897974) about that but it seems that it got lost. :)
[Original Message] So i also noticed that the power consumption on Mac OS is not as good as on Linux (with disabled MX150) and on Windows. I have all three operating systems install on my Notebook Pro and i like to monitor the temperature all the time on all operating systems. What i noticed is that on Windows and on Linux (with Intel only enable) the CPU was getting 36-38C on idle. The strange thing is that on Mac OS the temp was 42-44C on idle, which was the same temp that i get on Linux when i have the MX150 enable.
I also noticed that using the Intel Power Gadget on Windows the PKG power was able to drop bellow 1 (0.90W) compared with the Mac OS where the lower power is around 2.80W. I don't know a lot on how to patch and all these stuff that you guys know but i've been a hackintosh user for the last 7 years and i at least i'm able to test stuff, break them and fix them again :p
So moving back to the power consumption, a couple of months ago, there was a version where the temp was good and i was able to get 4-5 hours on my device. From some point this was gone, and now i'm getting maybe 3-3,5 hours with a kind of hot laptop. So my first question is if the MX150 GPU is actually disable? Because it seems that is not.
As i was digging around to see whether there is a way to test if the GPU is off, i found this repository: https://github.com/SiddheshNan/Acer-A515-51G-Hackintosh. I noticed two file (attached) in ACPI/patched that are used to disable DGPU. I tried a lot of configuration but it seems that by copying this two files into our ACPI/patched folder the temp drops on 39C on idle and the power in the PKG is now around 2W. This is great but does that make any sense? I also have Battery Monitor for my battery and i notice that before copying the files the lowest power usage value was 12 Watts, while after copying the files i was able to get 9Watts.
I would really appreciate it if someone can test it or let me know if this is actually correct. I will test it for a couple of days of course to see also if the laptop last longer with the battery. [Original Message]
After testing for a few days along with the WIFI SSDT to disable it seems that we can gain 1.5 - 2 hours battery life. @stevezhengshiqi i'll really appreciate it if you can test it and confirm whether or not this patch is working.
Sorry for the long message and thank you again.
SSDT-Disable_DGPU.zip