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CFG lock seems to be unlocked on this laptop #8
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Awesome. Does it involve modifying the BIOS? |
For CFG lock: for DVMT: |
Chiming in Here, Lenovo 330s 15-ikb 81f5(Same as Kasti0) I also used Ru to Set DVMT to 64mb(there's higher options, but uhd 620 only needs 64mb to do 4k over HDMI.) Do Not Kasti that since its HDMI 1.4, max your gonna see is 4k@24/4k@30. 4k@60 just isn't possible with a usb-c port with no DP or a HDMI 1.4 port. I left total DVMT to the stock value as I read its pretty much fine as it is, plus I don't use HDMI that often so it was more for trial and error. I stick to Airplay streaming for my movies, and airplay only does 1080p but that's still serviceable. Its a very good thing to do, highly recommended.. |
Not an issue, but improvement:
While trying to mod my BIOS I figured that this laptop probably doesn't have a CFG lock. So you can disable the kernel quirks AppleCpuPmCfgLock and AppleXcpmCfgLock. This can improve native CPU power management.
(I also figured out how to patch the DVMT pre-allocated so no framebuffer patches are needed)
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