Timeline for disable failing AMD GPU on a 2011 MBP? from Linux, because of Sierra's SIP?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Oct 6, 2017 at 17:54 | comment | added | JL Peyret |
gist of above method - no Linux. 1. write a complicated nvram based flag with a massive GUID (sudo nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00). 2. move AMDRadeonX3000.kext out of its usual location. 3. subsequently sudo kextload AMDRadeonX3000.kext after each initial boot to lower power use. I esp appreciate that these folk have narrowed it down to 1 AMD file - taking out all the AMDs, like I did before, left my Mac with a lot of problems - sleep didn't work, lock screen didn't, etc...
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| Oct 6, 2017 at 17:48 | comment | added | JL Peyret | well, after applying a macos update by mistake i was back at having blank screen. so I had to use your procedure. Thanks a huge deal for this - mac is totally looking good right now (the previous procedure I got from youtube left me with a lot of screen artefacts). The actual bit that worked for me, is the nvram-based variation @ post #528 . You guys rock! | |
| Oct 6, 2017 at 17:42 | vote | accept | JL Peyret | ||
| May 16, 2017 at 22:50 | history | edited | grg♦ | CC BY-SA 3.0 |
fix link
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| May 16, 2017 at 22:17 | comment | added | JL Peyret | ok, I'll take a look at it at later. I have managed to de-SIP in single user mode and move the KEXTs around. the machine now boots but looks a massive mess, with blue/black vertical striping. and very slow. But it did allow me to work a bit more and backup everything nicely so it was a worthwhile workaround. I'll take a look to see if your recommendation works better. | |
| May 16, 2017 at 21:20 | review | First posts | |||
| May 16, 2017 at 22:51 | |||||
| May 16, 2017 at 21:18 | history | answered | spike1206 | CC BY-SA 3.0 |