darknight11c Posted October 25, 2017 Share Posted October 25, 2017 When I boot up El Capitan, my display has alternating white lines. If I set System preferences to change resolution to 1366x768 scaled or any other for that matter, the display will "blink" and reappear at that scaled resolution without any problems. Similarly, if I put the computer to sleep and wake it up immediately, the display issues are fixed. This only happens on boot. Any ideas on how to fix this? I have full working iGPU power management and QE/CI. I also want to "upgrade" to Sierra, but the sleep/wakeup fix does not work on 10.12. IMAGE: https://imgur.com/2IHZoDz Another user with the same issue, idk how he resolved it: https://www.hackintosh.zone/forums/topic/5093-yosemite-scrambled-login-screen/ intel i5-5200u, intel HD 5500. If I don't enable acceleration (display shows as 7MB instead of 1536MB) I don't have the garbled/scrambled lines right after booting, but it does the standard flashing glitches instead. https://imgur.com/HUoK84n Link to comment Share on other sites More sharing options...
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