![]() ![]() This file set and method should work for Sierra, High Sierra The zip file is a complete ESP/kext pack for the Lenovo T420 using Clover on macOS. 3 alternate configs: EDID-2e2, 2e3, 366 - 60 and 50 Hz modes.Provide alternate ist files and DSDT files for testing glitchy 1600x900 LCD Removed ACPI patching by Clover (except Fix_Regions) since patching is already in provided in the DSDT Update ist files to set slide=0 by default.Revised to common ist for simplicityĬhanged ist file to use audio layout id 14 (or 13 for dock) VoodooPS2Controller.kext - with new SSDT option for custom key mapĪppleALC.kext - merged properties for T420 (changed Layout 12 to 14) Use WhateverGreen.kext for GFX patching and properties by default ![]() Update Theme (icons and boot chime option) best of luck for sure!Īdded older versions of IntelMausiEthernet for 10.12, 10.13, 10.14, 10.15 glitches are more of a problem in HighSierra/Mojave/Catalina (as they all use the same gfx) than Sierra (rarely seen). you can also try to use the edid from the "366" ist to see if it works any better. So sure patching to 1G may help with glitches. Sounds like HD3000 gfx kexts were not actually running - if (A) you got 7MB vram and (B) the external monitor was not detected. just to be sure - I put this patch in ist inside the dictionary of KextsToPatch right? The difference I see is that you put in the name string "" while the patch from 2018 puts only "AppleIntelSNBGraphicsFB". I suffer from occasional random horizontal glitchy lines (especially in browser) and raising the VRAM to 1024 MB might help with that, as I have read somewhere else, so I will try your patch. ![]() On subsequent boots, the number was reduced to 512 MB (?), though the monitor still works with no trouble. Anyway after I patched the ist with the patch you mentioned in your first reply to me (the one from 2018) and rebooted, it suddenly worked and I got 1024 MB VRAM. At the same time, OSX was unable to detect my external monitor, even when I explicitly pressed the button "Detect displays" in the system preferences. I think as a result, the external monitor was extremely blurry and wavy, it's kinda hard to explain as english is not my primary language. To clarify: I had a very low VRAM in "About this Mac" displayed, 7 MB only. I apologize to everyone who I may have thank you for your help again. Lmao how did I not see that you can search in the topic? I guess I was looking only at the mobile version. ![]()
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