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Here is my whole EFI. I am currently running Catalina 10.15.2 and all of my components work fine. I use my machine daily as my go-to laptop. Not sure exactly how the 470s differs from my 470. This has my patched DSDT and several SSDT patched in the ACPI/patched directory.

check the latest changes on the github fork. I boot with: <string>kext-dev-mode=1 bpr_probedelay=100 bpr_upgradedelay=200 bpr_initialdelay=300 bpr_postresetdelay=300</string> And have gone through dozens of sleep/wake cycles over the past 4 days with no issues.

Done. Thanks.

I could not get bluetooth to survive the sleep/wake cycle using the tunable sleep parameters in @RehabMan version. I did quite a bit of experimentation. @tluck version worked fine. I studied the TLUCK/Rehabman diffs and patched @RehabMan branch with 1 additional delay. I boot with...

I studied the TLUCK/Rehabman diffs and pathed @RehabMan branch with 1 additional delay. I boot with: bpr_probedelay=100 bpr_upgradedelay=200 bpr_initialdelay=300 bpr_postresetdelay=300 and have gone through hundreds of sleep wake cycles. This is with the following card from NewEgg. Broadcom...

I was able to get past this issue, and use v1.9.2, by not unloading / loading the kext in rc.sleep and rc.wake. My laptop works fine, sleeps and wakes. It is strange however that i get the KP on unload.

I have no issues with 1.8.x, it works great for me, gestures, two finger scrolling, etc... My issue is that 1.9.2 KP on sleep. Seems to be when unloading the trackpad kext. See #1,134 for reporting files.

KP on unload (initiated via sleep) v1.8.x works fine. installed v1.9.2 (also tried earlier 1.9.x) and KP when sleep is initiated. I also opened an issue on github.

Thanks. Worked great. Now 10.13.6 is running great on my T470 off a 64GB USB thumb drive. In a week of use, I will be ready to move it to the internal drive. Thanks again.

Since yesterday I re-read faqs, and went over all my patches carefully. My T470 looks a lot like tluck's T460, but uses LPCB in it's DSDT namespace and not LPC. I re-jiggered a number of patches, and am in a much better state. 1) Graphics seem 100% 2) Wifi seems 100% 3) Screen Brightness...

Some positive news. Used the script from @tluck to build a custom AppleBacklightInjector. It plays very nicely with the SSDT-PNTF-T460 -- Give a brightness slider and high brightness on my LCD panel. I was injecting the wrong value for AppleALC, changed to inject a 29 instead of a 28, and...

I forgot to include my ACPI patches. Also both batteries do show correct in HWMonitor. My battery patch, has a small diff with respect to the one in RehabMan's repo: 48e2-44e1-dbdb:DSDT.T470 sjk$ diff -wu patch-files/2_battery_Lenovo-X220.txt...

Hi, Thanks to the the great resources by @RehabMan, and the t460 repository by @tluck, I have my T470 running 10.13.6 pretty well. My T470 is an i5-6300U so it seems more like most T460 mentions in the forum, then the i7 based T470's I read about. Working: 1) Intel 520 graphics --...