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Hey, can you share your efi folder for MacOS Catalina ? I'd like to try upgrading. Thanks!

I tried with charger plugged in because my battery is not that good. Legacy support does not work for me. It causes black screen ATM. I will play around with bios settings more and experiment.

I identified the problem of the black screen. It was BIOS settings. In my case I had boot set to UEFI + Legacy as guide recommends. When that option is active, secure boot option is ON and hidden in the settings. I was able to get working login screen by setting boot BIOS option to UEFI and...

My laptop is always connected to the charger and it didn't give me a working display when I tried Asrake config. I will provide the problem reporting files today.

I had no success when using both Clover configurations. Config from post https://www.tonymacx86.com/threads/guide-lenovo-y50-uhd-or-1080p-using-clover-uefi.261723/post-1915886 resulted in boot stuck at 40%. I could hear macOS error sound when pressing enter. Using sequence FN+F1, Alt to...

Thanks, I will try those configs today and post the results here.

can you also provide clover folder please? I want to try out your config on my laptop.

Thanks, fixed my profile information. Attached all problem reporting files. I had El Capitan working successfully. I am running on external TV right now. Using config_UHD.plist. DVMT-prealloc patched to 128MB Seems like changing this line in config.plist triggers a black screen issue...

I had no success with using 0x04260000 as ig-platform-id. It resulted in a kernel panic when booting. Can you share your clover config so that i can compare it with mine ? Thanks.

Good news, I will try it when I get back home.

@blint01 I will try to check my old El Capitan config to find some clue how it was working there.

Thanks, I confirm that external hdmi port is working fine when using config_UHD.plist. I am currently using config_UHD.plist while laptop is connected to external HDMI display. Internal display is all black. Using my external display I can see that my graphics intel card is reported correctly...

I managed to install Mojave on my y50-70 UHD model without a problem with the attached config: Everything works fine untill this point: cd ~/Projects/y50.git cp config_UHD.plist /Volumes/EFI/EFI/Clover/config.plist The problem is after the install. When I copy config_UHD.plist Mojave won't...

@masterscarhead1 I did disable hibernate. When i put computer to sleep with Fn+F1 and wake it fast, then it works fine. When the computer actually starts sleeping then after wake I have this issue: Black screen after wake (UHD only): Some owners of the UHD model report that on wake from sleep...

Hello, I found out one more issue: for my UHD model. When laptop wakes up from sleep, screen is black and pc is frozen for good. Fn+F1 combo doesn't help. Is there a solution to that?

Hello again, I was able to successfully change prealloc setting to 0x4. What I did is: Download 1.14 bios. Change bios installer flag in .ini file to allow downgrading. Downgraded to 1.14. Set variable for prealloc to 0x4 from 0x1 via uefi boot loader on usb pendrive. Upgrade back to bios...

@biofotos That's really great news, where can I find a link to instructions on how to do that? How did you do this? EDIT: Please update link in post #1 from: http://www.tonymacx86.com/yosemite-laptop-guides/165188-guide-lenovo-y50-uhd-1080p-using-clover-uefi-19.html#post1050617 to...

@masterscarhead1 Thanks for quick response and clarification. I understand that my BIOS version is not compatible. I would like to keep my BIOS version if possible, since it fixes few issues with internal fan and sleep issues on windows which I experienced with older version. To do that I need...

@masterscarhead1 I read the guide regarding the DVMT-preallow option: Note: It has been reported that BIOS version 1.14 or *older* must be used in order to set DVTM-prealloc via UEFI shell. Details here: http://www.tonymacx86.com/yosemite-...d-1080p-using-clover-uefi-19.html#post1050617 I have...