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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