Intel UHD620 no GPU acceleration

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Mattuz

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Hello everyone, I'm currently trying to get monterey working on my Dell Xps 13 9360 (i7-8550u/UHD620). I found many efis from other users that didn't work for me and I tried to create one myself.
I spoofed the gpu using device-id 16590000 as listed on WhateverGreen's faq.
But hardware acceleration is still not working as the dock has a solid background and system info says "Intel UHD Graphics 620 21MB".
I used all AAPL,ig-platform-id for the UHD620: 00001B59, 00001659, 0000C087 but none of this fixed it.

What would you suggest to do?

Thanks in advance.
 

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EliteMacx86

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Hello everyone, I'm currently trying to get monterey working on my Dell Xps 13 9360 (i7-8550u/UHD620). I found many efis from other users that didn't work for me and I tried to create one myself.
I spoofed the gpu using device-id 16590000 as listed on WhateverGreen's faq.
But hardware acceleration is still not working as the dock has a solid background and system info says "Intel UHD Graphics 620 21MB".
I used all AAPL,ig-platform-id for the UHD620: 00001B59, 00001659, 0000C087 but none of this fixed it.

What would you suggest to do?

Thanks in advance.
No Device Properties for IGPU exist. You cannot expect acceleration in such a case.
 

Mattuz

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Mar 28, 2022
Messages
49
Motherboard
Dell XPS 13 9360 (i7-8550u)
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i7-8550u
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UHD620
OS X/macOS
12.0.x
Bootloader
  1. OpenCore
Mobile Phone
  1. iOS
No Device Properties for IGPU exist. You cannot expect acceleration in such a case.
Hi, if you mean that PciRoot(0x0)/Pci(0x2,0x0) was not in the correct place I fixed it, but now I cannot even boot, it gets stuck at IOG Flags 0x3 (0x51)
 

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EliteMacx86

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Hi, if you mean that PciRoot(0x0)/Pci(0x2,0x0) was not in the correct place I fixed it, but now I cannot even boot, it gets stuck at IOG Flags 0x3 (0x51)
Seems like your panel is either 4K/UHD/QHD, which requires further patching.
 

Mattuz

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  1. OpenCore
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EliteMacx86

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Yes it’s a QHD display.
For QHD Display, the DVMT must be 64MB or higher. Since Big Sur, the CDF patch is broken and there are new parameters for it.

Replace the following Device Properties with the existing one.
Code:
<key>DeviceProperties</key>
    <dict>
        <key>Add</key>
        <dict>
            <key>PciRoot(0)/Pci(0x02,0)</key>
            <dict>
                <key>AAPL,ig-platform-id</key>
                <data>AAAbWQ==</data>
                <key>device-id</key>
                <data>FlkAAA==</data>
                <key>dpcd-max-link-rate</key>
                <data>FAAAAA==</data>
                <key>enable-dpcd-max-link-rate-fix</key>
                <data>AQAAAA==</data>
                <key>enable-hdmi-dividers-fix</key>
                <data>AQAAAA==</data>
                <key>enable-hdmi20</key>
                <data>AQAAAA==</data>
                <key>enable-max-pixel-clock-override</key>
                <data>AQAAAA==</data>
                <key>framebuffer-fbmem</key>
                <data>AACQAA==</data>
                <key>framebuffer-patch-enable</key>
                <integer>1</integer>
                <key>framebuffer-stolenmem</key>
                <data>AAAgAg==</data>
                <key>hda-gfx</key>
                <string>onboard-1</string>
            </dict>
            <key>PciRoot(0)/Pci(0x1f,3)</key>
            <dict>
                <key>hda-gfx</key>
                <string>onboard-1</string>
                <key>layout-id</key>
                <integer>56</integer>
                <key>no-controller-patch</key>
                <integer>1</integer>
            </dict>
        </dict>
        <key>Delete</key>
        <dict/>
    </dict>
Make sure to reset NVRAM twice.
Reply with new PR files.
 

Mattuz

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Motherboard
Dell XPS 13 9360 (i7-8550u)
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UHD620
OS X/macOS
12.0.x
Bootloader
  1. OpenCore
Mobile Phone
  1. iOS
For QHD Display, the DVMT must be 64MB or higher. Since Big Sur, the CDF patch is broken and there are new parameters for it.

Replace the following Device Properties with the existing one.
Code:
<key>DeviceProperties</key>
    <dict>
        <key>Add</key>
        <dict>
            <key>PciRoot(0)/Pci(0x02,0)</key>
            <dict>
                <key>AAPL,ig-platform-id</key>
                <data>AAAbWQ==</data>
                <key>device-id</key>
                <data>FlkAAA==</data>
                <key>dpcd-max-link-rate</key>
                <data>FAAAAA==</data>
                <key>enable-dpcd-max-link-rate-fix</key>
                <data>AQAAAA==</data>
                <key>enable-hdmi-dividers-fix</key>
                <data>AQAAAA==</data>
                <key>enable-hdmi20</key>
                <data>AQAAAA==</data>
                <key>enable-max-pixel-clock-override</key>
                <data>AQAAAA==</data>
                <key>framebuffer-fbmem</key>
                <data>AACQAA==</data>
                <key>framebuffer-patch-enable</key>
                <integer>1</integer>
                <key>framebuffer-stolenmem</key>
                <data>AAAgAg==</data>
                <key>hda-gfx</key>
                <string>onboard-1</string>
            </dict>
            <key>PciRoot(0)/Pci(0x1f,3)</key>
            <dict>
                <key>hda-gfx</key>
                <string>onboard-1</string>
                <key>layout-id</key>
                <integer>56</integer>
                <key>no-controller-patch</key>
                <integer>1</integer>
            </dict>
        </dict>
        <key>Delete</key>
        <dict/>
    </dict>
Make sure to reset NVRAM twice.
Reply with new PR files.
I added the device proprieties you attached here and resetted nvram twice but I still get IOG Flags 0x3 (0x51).
To change DVMT I need to modify the variables of the bios am I right?
 

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  • EFI.zip
    6.2 MB · Views: 25

EliteMacx86

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I added the device proprieties you attached here and resetted nvram twice but I still get IOG Flags 0x3 (0x51).
To change DVMT I need to modify the variables of the bios am I right?
Yes, correct. There is already a method on this forum. Try to install macOS Catalina and that should load.
 

Mattuz

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Joined
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Messages
49
Motherboard
Dell XPS 13 9360 (i7-8550u)
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i7-8550u
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UHD620
OS X/macOS
12.0.x
Bootloader
  1. OpenCore
Mobile Phone
  1. iOS

EliteMacx86

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Supermicro X11SPA-T
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  1. OpenCore
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  1. Mac mini
  2. MacBook Pro
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