Created
August 2, 2020 07:47
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DSDT patch for S3 suspend-to-RAM
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| --- a/dsdt.dsl 2020-08-01 17:44:50.799557442 +1000 | |
| +++ b/dsdt.dsl 2020-08-01 18:06:34.305329465 +1000 | |
| @@ -18,7 +18,7 @@ | |
| * Compiler ID " " | |
| * Compiler Version 0x01000013 (16777235) | |
| */ | |
| -DefinitionBlock ("", "DSDT", 1, "LENOVO", "CB-01 ", 0x00000001) | |
| +DefinitionBlock ("", "DSDT", 1, "LENOVO", "CB-01 ", 0x00000002) | |
| { | |
| External (_PR_.C000, UnknownObj) | |
| External (_PR_.C000._PPC, IntObj) | |
| @@ -790,20 +790,13 @@ | |
| Zero, | |
| Zero | |
| }) | |
| - If ((CNSB == Zero)) | |
| + Name (_S3, Package (0x04) // _S3_: S3 System State | |
| { | |
| - If ((DAS3 == One)) | |
| - { | |
| - Name (_S3, Package (0x04) // _S3_: S3 System State | |
| - { | |
| - 0x03, | |
| - 0x03, | |
| - Zero, | |
| - Zero | |
| - }) | |
| - } | |
| - } | |
| - | |
| + 0x03, | |
| + 0x03, | |
| + Zero, | |
| + Zero | |
| + }) | |
| Name (_S4, Package (0x04) // _S4_: S4 System State | |
| { | |
| 0x04, | |
| @@ -10464,11 +10457,6 @@ | |
| Local0 |= One | |
| } | |
| - Case (Zero) | |
| - { | |
| - Local0 |= Zero | |
| - Local0 |= 0x02 | |
| - } | |
| Default | |
| { | |
| Local0 |= Zero |
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You can try following the steps over on https://old.reddit.com/r/linuxhardware/comments/i28nm5/ideapad_14are05_s3_sleep_fix/. I expect the patch won't apply exactly as is, but you never know.
It's a pretty simple patch, just removing the if statements that were around the S3 entry and bumping the version number. And removing an extra Case (Zero) entry that stopped it from compiling.