lenovo x1 carbon gen6: update S3 suspend #88
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CC @azazel75 @FruitieX I see from https://discourse.nixos.org/t/nixos-on-x1-carbon/1627 that you're using this laptop; if you haven't done so already, you may want to upgrade your UEFI version to the latest one that supports the efficient sleep by default. |
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@bhipple , well done! I've actually updated several days ago but hadn't found the time yet to submit a patch. +1 for me |
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Just one note, are you sure that it isn't better to reference the firmware upgrade as "BIOS version >= 1.30" instead of "UEFI"? The archlinux wiki too refers to it as "BIOS update" https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X1_Carbon_(Gen_6)#Enabling_S3 and you can actually check your version entering the BIOS configuration utility |
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| # standing with kernel 4.6.11 is the following wiki page: | |||
| # https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X1_Carbon_(Gen_6). The | |||
| # TrackPoint and TouchPad issues there seem to have been fixed already. | |||
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| # Enable the lower-power S3 suspend state by upgrading UEFI to version >= 1.30, | |||
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Maybe it's better to use BIOS instead of UEFI here?
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Yeah that's a good point; upgraded comment accordingly.
With UEFI >= 1.30, there's an explicit option to enable S3 power management. Once this is selected, S3 is enabled and "deep" is selected as the default /sys/power/mem_sleep value without requiring any kernel boot parameters.
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With UEFI >= 1.30, there's an explicit option to enable S3 power management.
Once this is selected, S3 is enabled and "deep" is selected as the default
/sys/power/mem_sleep value without requiring any kernel boot parameters.