> From: "Ted Unangst" <[email protected]> > Date: Wed, 23 Sep 2015 14:16:26 -0400 > > I have lidsuspend=0. I suspend with zzz. It seems to work. The light on the > power button blinks fast, then slows down to the suspend pulse. > > But I can't resume. Closing and opening the lid doesn't trigger wake up > (expected, given above setting). But pushing the power button doesn't do > anything either. Just sits there, glowering at me. > > At this point I have to do a hard reset.
For the record, this is caused by a BIOS bug that affects many recent Lenovo laptops. If the OS doesn't actively manage the TPM on these systems, the TPM blocks the resume. Lenovo has releases a fixed BIOS for some models. But the bug keeps popping up in newer models. You can fix the problem by completely disabling the TPM in the BIOS setup.
