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As per your IOReg, the PNLF is working and brightness controls.

Repatch your DSDT. As always, i suggest full set of DSDT and SSDTs patching. For the HDMI, patches and framebuffers are present but it's disabled. You need to find the Framebuffer with the help of IOReg and then activate the framebuffer. Some HP laptops has issues for this and the old method will work in such case.

[QUOTE="EliteMacx86, post: 884, member: 1"] As per your IOReg, the PNLF is working and brightness controls. Repatch your DSDT. As always, i suggest full set of DSDT and SSDTs patching. For the HDMI, patches and framebuffers are present but it's disabled. You need to find the Framebuffer with the help of IOReg and then activate the framebuffer. Some HP laptops has issues for this and the old method will work in such case. [/QUOTE]

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