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[Solved] Dell Optiplex 7040 SFF, can't reach installer

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I found the original EFI online it supposed to be the same desktop, before i updated the Lilu and whatevergreen and deleted
FakePCIID.kext
FakePCIID_Intel_HD_Graphics.kext
As another member recommended so i thought to go back one step when it was at least booting. So i guess i have to find another EFI or start from scratch? There is some posts about this same desktop model, should i find a different one?

Please post the video of the kernel panic.
 
Here is the clip. Sorry for bad quality i just used my cellphone.
 

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  • Video.zip
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Here is the clip. Sorry for bad quality i just used my cellphone.

The kernel panic is graphics related. Which graphics port are you using? HDMI? DisplayPort?

Please try with the attached EFI. If you get the same kernel panic, please enter in a fake device-id for IGPU as seen below.
Screen Shot 2020-06-24 at 4.05.07 PM.png

Then, follow the guide below to patch your connectors:
 

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  • EFI.zip
    29.8 MB · Views: 102
The kernel panic is graphics related. Which graphics port are you using? HDMI? DisplayPort?

Please try with the attached EFI. If you get the same kernel panic, please enter in a fake device-id for IGPU as seen below.
View attachment 477864

Then, follow the guide below to patch your connectors:
I'm using DisplayPort PC to DisplayPort monitor with regular DisplayPort cable no adapting.
 
I'm using DisplayPort PC to DisplayPort monitor with regular DisplayPort cable no adapting.

If you still get the same graphics error on boot, it's likely that your connectors need patching. Please see the guide I linked to above.
 
If you still get the same graphics error on boot, it's likely that your connectors need patching. Please see the guide I linked to above.
Hey pastrychef!
I finally got the Intel HD 530 to show 1536mb and no artifacts. I combined your EFI (added only USB fix kext) with some other member's config.list (I think the member did the patching already) and runs fine now. Only weird thing is i have 4gb ram installed but it is showing 8gb? and no sound but i don't care about the sound. I will attach my EFI for you to look at or anyone might find it helpful. I'm using one of the displayports not HDMI. Thank you for your help!
 

Attachments

  • EFI.zip
    29.8 MB · Views: 105
Last edited:
Hey pastrychef!
I finally got the Intel HD 530 to show 1536mb and no artifacts. I combined your EFI (added only USB fix kext) with some other member's config.list (I think the member did the patching already) and runs fine now. Only weird thing is i have 4gb ram installed but it is showing 8gb? and no sound but i don't care about the sound. I will attach my EFI for you to look at or anyone might find it helpful. I'm using one of the displayports not HDMI. Thank you for your help!

If this config.plist is working for you, it means that you did not set DVMT prealloc to 64MB or higher in BIOS.

It is still using the incorrect ig-platform-id. I fixed it and cleaned up the config.plist a bit. Please try.
 

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  • EFI.zip
    29.8 MB · Views: 153
Thank you! I just tried the last EFI it works but monitor is not waking up when it enters saving mode.The intel HD 530 still showing 1536mb and the weird ram amplified size :lol:. What is the advantage of setting the DVMT prealloc in this machine? There is no option in this desktop's bios to adjust that.
 
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Thank you! I just tried the last EFI it works but monitor is not waking up when it enters saving mode.The intel HD 530 still showing 1536mb and the weird ram amplified size :lol:. What is the advantage of setting the DVMT prealloc in this machine? There is no option in this desktop's bios to adjust that.

Is the RAM showing and working correctly in Windows or Linux?

There's nothing in the config.plist that would screw with the RAM.

On many OEM systems, the DVMT prealloc settings are hidden and need to be configured in Grub shell. In my experience, setting DVMT prealloc is more stable than using workarounds in config.plist. It may even get your wake from sleep working.
 
Ram is accurate in Linux. Will dig in the DVMT if that is the only way to fix the waking. Thank you!
 
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