bern Posted February 10, 2017 Share Posted February 10, 2017 Hello all! This is the guide I am following: https://osxlatitude.com/index.php?/topic/8506-dell-latitude-inspiron-precision-clover-guide/&do=findComment&comment=54632 I've been toying with this E5450 for a while now and have finally gotten some progress, turns out I was an idiot and didn't configure the Bios properly: (I missed this) 2. Press F2 to configure the BIOS Sata Operaton -> AHCI Secure Boot -> Disabled Boot List Option -> UEFI. Enable Legacy Option Rom Apply and Exit So now I am getting I'm getting past the initial loading but it bombs out with this kernel panic: Some notes: Boot pack - I used this one: Broadwell - (See Note2 below) E5450_HD5500.zip 418.94KB 442 downloads Updates: I followed note to check for updates and replaced this kext: E7x70, E7x50, E5450, Precision 7510 AppleHDA_ALC293.kext.zip 13.26KB 385 downloads Anyone have a red hot clue what I did wrong? Thanks for reading. Eternally grateful Link to comment Share on other sites More sharing options...
Administrators Hervé Posted February 10, 2017 Administrators Share Posted February 10, 2017 Broadwell platforms and beyond require a BIOS patch for DVMT adjustment (video RAM) or BDW framebuffer kext patch. Did you do any of that? Link to comment Share on other sites More sharing options...
bern Posted February 10, 2017 Author Share Posted February 10, 2017 I did not. Have any links? Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted February 10, 2017 Moderators Share Posted February 10, 2017 Yup, you must've missed the note from the bottom of the guide. Follow my E7450 guide Prerequisite section. Note2: Systems with Broadwell / Skylake / Kabylake CPU such as Latitude E7450 and Inspiron 5548, you'll need to set the DVMT prealloc to 96MB in order to bypass KP and to enable full graphics with full QE/CI. For more info, see here. Link to comment Share on other sites More sharing options...
bern Posted February 10, 2017 Author Share Posted February 10, 2017 Sorry about that! and huge thanks I will give that a shot! Link to comment Share on other sites More sharing options...
bern Posted February 10, 2017 Author Share Posted February 10, 2017 Okay so! This is my PE32 image's DVMT entries: And this is what my sys showed for allocated video mem: So Based on firewolf's article, my understanding is that I want to do the following with the GNU GRUB bootable editor: setup_var 0x15b 0x4 setup_var 0x15c 0x4 (as my dedicated is 128mb) Problem: The setup hangs as soon as the load bar appears. It stays there even after a 1/2 hour. I also for fun tried 0x3, 0x2, 0x5 but no luck. If I put it back to 0x1 then the bar loads again and panics at the same place as before. Any ideas where I messed up? Thanks again! Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted February 10, 2017 Moderators Share Posted February 10, 2017 Set to these setup_var 0x15b 0x3 setup_var 0x15c 0x3 Boot with verbose mode to see where it's hanging. Make sure in the Config.plist that 'Disabled MinStoleSize..." patch is disabled. Link to comment Share on other sites More sharing options...
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