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I have a T440s and would expect the two to be quite similar from an ACPI |
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point of view, so let's see if I can help. |
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On Tue, 25 Aug 2015, Ralf wrote: |
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> It doesn't come back from standby. |
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> After closing the lid, the standby LED starts breathing, opening the lid |
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> doesn't change anything, even pressing the power button does not wake up |
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> the system. The only option is to reset the system by holding down the |
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> power button. |
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This might be a long-shot but could you check |
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cat /proc/acpi/wakeup |
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The lid-wakeup action can be toggled there. I also have a SLPB device in |
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that file, which could map to the power button in some cases? |
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> As a try and quick fixI copied the Arch Kernel+Modules to my Gentoo |
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> system and it works fine, which means to me that I probably have a |
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> misconfigured kernel. But that's not the Gentoo way, I'd like to |
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> compile the kernel on my own. |
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You could try diffing your config with the arch kernel config. Should be |
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present in /boot. Then look for suspicious differences, it's not as hard |
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as it seems, I've done it with the fedora kernel to solve problems. |
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> Does anyone know what I might be missing in my kernel config? |
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Try my config (attached), I don't know how it compares to the arch one but |
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suspend/resume works correctly here. It may be easier to pinpoint the cause |
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with it. You'll have to enable systemd. |
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