kidalive Posted June 23, 2013 Share Posted June 23, 2013 I got my GA-Z77M-D3H-MVP plust HD4000 sleep and wake working with EHCI dsdt fix. Got HD$000 working with DSDT. The problem is the display shows no signal after idle for a while, any fix? My modified dsdt attached. DSDT.dsl.zip Link to comment Share on other sites More sharing options...
nyolc8 Posted June 23, 2013 Share Posted June 23, 2013 Do you have displaysleep enabled? Try to disable it. (System preferences > energy saving > set display sleep to "never") If that "fixes" the problem, then your display sleep working incorrectly. (I fixed almost the same problem by edited my vga connector values, but that was for ati card, I don't know how to edit these kind of things on intel vga, sorry.) Link to comment Share on other sites More sharing options...
kidalive Posted June 25, 2013 Author Share Posted June 25, 2013 Do you have displaysleep enabled? Try to disable it. (System preferences > energy saving > set display sleep to "never") If that "fixes" the problem, then your display sleep working incorrectly. (I fixed almost the same problem by edited my vga connector values, but that was for ati card, I don't know how to edit these kind of things on intel vga, sorry.) I can only got HDMI and DVI working with HD4000, no luck with VGA. Speaking of modify VGA connector values, mind shed the light on how to do it in detail? Link to comment Share on other sites More sharing options...
nyolc8 Posted June 25, 2013 Share Posted June 25, 2013 By vga connectors, I mean the connectors to the displays. For intel grahpics, I don't know where are the framebuffers. But you need to edit the framebuffers, the connector infos/properties are in the framebuffer. Btw is the problem dissapears when you disable display sleep? Link to comment Share on other sites More sharing options...
kidalive Posted June 28, 2013 Author Share Posted June 28, 2013 By vga connectors, I mean the connectors to the displays. For intel grahpics, I don't know where are the framebuffers. But you need to edit the framebuffers, the connector infos/properties are in the framebuffer. Btw is the problem dissapears when you disable display sleep? I know it`s inside the AppleIntelFramebufferCapri.KEXT. I have to hack the hex of the binary inside MACOS folder. I used the <0a 00 66 01> for ig-platform-id. Which has Displayport and HDMI according to Pascal1989 of iATKOS forum here. But how to change and what to change is unknown to me. Link to comment Share on other sites More sharing options...
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