Uhm - why should it do so? And why should it do so if the module is NOT available?
In deed, I do have full disc encryption, but the key stays inside RAM if the machine goes to standby.Furthermore, I did not configure TPM (yet). Maybe the TPM Chip (if enabled by the bios) needs some "Reinitialization" (even if the TPM is not configured and used) after a wakeup and refuses wakind up if this "reinitialization" does not take place. For me, this would sound more reasonable why my machine only wakes up when TCG_TIS is enabled. Ralf On 08/27/2015 12:00 AM, Mick wrote: > On Wednesday 26 Aug 2015 22:42:02 Ralf wrote: >> So I was able to figure it out... >> >> Don't ask me why, but it's the TPM module. >> Without enabling >> >> CONFIG_TCG_TPM=y >> CONFIG_TCG_TIS=y >> >> my X1 Carbon won't wake up from standby. >> >> Cheers >> Ralf > It uses TPM to store the encryption key for the fs.