wujek_bogdan Posted November 12, 2020 Share Posted November 12, 2020 (edited) It's my first OpenCore setup, I've been using Clover so far. I followed the Dortania install guide for Comet Lake. Installation boots in verbose mode and reaches IOConsoleUsers: gIOScreenLockState 3. Then the screen turns black. So it looks like the system is trying to enter graphics mode but it fails. I know that system does not hang because if I wait a few minutes then the system goes into sleep mode (I see the led blinking). If I press any key then the system wakes up, but the screen remains black. So far I tried: Changing AAPL,ig-platform-id value from 07009B3E to 07009B3E Adding agdpmod=pikera to boot args Changing iGPU BIOS setting from Auto to iGPU only OpenCore 0.6.3, All kexts up to date, downloaded from Github. // EDIT: Problem solved thanks to fb patch: <key>PciRoot(0x0)/Pci(0x2,0x0)</key> <dict> <key>AAPL,ig-platform-id</key> <data>BwCbPg==</data> <key>device-id</key> <data>mz4AAA==</data> <key>framebuffer-stolenmem</key> <data>AAAwAQ==</data> <key>framebuffer-fbmem</key> <data>AACQAA==</data> <key>framebuffer-con0-busid</key> <data>AgAAAA==</data> <key>framebuffer-con0-enable</key> <data>AQAAAA==</data> <key>framebuffer-con0-flags</key> <data>xwMAAA==</data> <key>framebuffer-con0-index</key> <data>AgAAAA==</data> <key>framebuffer-con0-pipe</key> <data>CgAAAA==</data> <key>framebuffer-con0-type</key> <data>AAgAAA==</data> <key>framebuffer-con1-busid</key> <data>BAAAAA==</data> <key>framebuffer-con1-enable</key> <data>AQAAAA==</data> <key>framebuffer-con1-flags</key> <data>xwMAAA==</data> <key>framebuffer-con1-index</key> <data>AwAAAA==</data> <key>framebuffer-con1-pipe</key> <data>CAAAAA==</data> <key>framebuffer-con1-type</key> <data>AAgAAA==</data> <key>framebuffer-con2-busid</key> <data>AQAAAA==</data> <key>framebuffer-con2-enable</key> <data>AQAAAA==</data> <key>framebuffer-con2-flags</key> <data>xwMAAA==</data> <key>framebuffer-con2-index</key> <data>AQAAAA==</data> <key>framebuffer-con2-pipe</key> <data>CQAAAA==</data> <key>framebuffer-con2-type</key> <data>AAQAAA==</data> <key>framebuffer-patch-enable</key> <data>AQAAAA==</data> </dict> There is also igfxonln=1 argument required in boot-args. Otherwise, I got a black screen after wake up from sleep. Edited November 16, 2020 by wujek_bogdan 1 Link to comment Share on other sites More sharing options...
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