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Thanks all! Booting with one monitor off do solve this issue. I can live with this!

In fact it just booted with the two monitors plugged in but one of them took some time to be detected. Next time I get stuck I will try to unplug one (not very user friendly as I always could boot with my 2 monitors in mojave)

in fact after a few reboot, it worked once. I rebooted once again and stuck.

Hello, I upgraded from Mojave to Catalina 10.15.6. I migrated from Clover to OpenCore 0.5.9 prior upgrating to Catalina. Catalina worked OK: dual screen, network, 5.1 audio. But after a reboot today I get the dreaded gIOScreenLockState 3 error. I checked my bios for DVMT memory and it is set to...

look at debug attachment in previous post. The only thing that I changed is iMac14,3 in the config.plist

18,1 is i5-7xxx so I fear 18,2 will not change things a lot but it's worth a try

Verify your SMBios settings. With an i5 7500 you should try iMac18,2 and check if this enables dual screen on your setup (I had to switch to iMac14,3 on a i7-4790K for dual screen to work with only a correct ig-platform-id)

It's finally another post (https://www.tonymacx86.com/threads/intel-hd-2500-igpu-working-mojave.261694/) that gave me the solution. I changed my SMBIOS to iMac 14,3 using CloverConfigurator. iMac14,3 has a very similar CPU (I7-4770S vs i7-4790K for my hackintosh) so I took the chance and voilà...

Thanks for this post. It allowed me to have dual monitor on my i4790K HD4600 IGPU!

M'y first tries where with 0d220003... I will revert to this default value for my further testings.

I am also looking for dual monitors on Mojave... any topic to follow for this specific need? edit: framebuffer patching is not enough for dual monitors, your SMBios should also match a model with identical CPU/IGPU for dual screen to work. For my i7-4790K I used iMac14,3 instead of multibeast...

Here are the debug files... I tryed a few things following "Intel framebuffer" post but dual screen is still not working on my setup

Hello I just upgraded from El Capitan to Mojave. Everything went very well and I am very impressed as audio, ethernet and intel graphics were OK without tweaking right after multibeast. Nevertheless I have a dual screen setup and, of course, this is not working... On another hackintosh with...

I got boot0 error while booting on my USB stick (unibeast created). I could fix that by setting my USB to GUID partition table instead of the default MBR.

Hello Just a little note for those who have the same setup : Intel Sunrise Poin-H HD Audio with ALC221 codec which is not natively supported by cloverALC-120.sh|command. I managed to have sound working with Voodoo HDA 2.8.9. I put the kext in EFI/CLOVER/kexts/10.12 and rebooted. I did not use...

Hello Thanks to this thread I managed to make my HD530 work with sierra without any glitches. My main concern is about dual monitors. I read somewhere in the thread that you can trick Sierra by switching on the second monitor after the boot. This solution would be ok for me but it does not...

I don't know if I need it in fact. I know this is not the root reason of my reboots as I installed it afterwards (my first multibeast install was minimalistic). I will remove it (how? will multibeast uninstall it if I run it again and un-check it? or do I have to do it manually?) just to be...

What would be the point? Raid-1 is here to recover from total HDD failure. If your one HDD raid-1 fails, you loose all your data! Raid-1 is no timemachine. You can not recover a file from the second partition if you delete/mess-up with it on the "first" partition (in fact you do not see 2...

Hello I just did a Yosemite fresh-install on my computer. Almost everything looks fine except it reboots after mecanical hard drives spin-down: I can hear the HDD stopping and 5 to 10 seconds later my computer reboots! If I disable hard drive sleep under the power-saving settings I do no...

AppleACPIPlatform kernel panic after post-install Mavericks Still strugling with my setup. UEFI version is F7 (latest available) and I followed recommanded settings. I tried a few tutorials with similar setup but I still have AppleACPIPlatform kernel panic. Here is a screenshot (sory for the...