https://bugzilla.kernel.org/show_bug.cgi?id=218198 --- Comment #2 from Dieter Mummenschanz (dmummenschanz@xxxxxx) --- Thanks for the swift reply. I've applied your patch. Booted up my machine and waited until it transitions into lower package states (pc8 at the lowest). After that I closed the laptop LID and let the machine suspend to RAM (S3). After that I reopened the LID and gave the machine 1-3 minutes time to transition to lower package states which it now does. I've attached the dmesg part including your patch when the machine enters suspend. One thing is odd though: [ 109.424369] ata5.00: qc timeout after 5000 msecs (cmd 0xe0) [ 109.424397] ata5.00: STANDBY IMMEDIATE failed (err_mask=0x4) this shouldn't be there, right? Regarding automatic transitioning I'm not sure how this works. However even though I've set CONFIG_SATA_MOBILE_LPM_POLICY=3 in the kernel config, I have to call an init script explicitly forcing the scsi host to use low power when idle: for foo in /sys/class/scsi_host/host*/link_power_management_policy; do echo med_power_with_dipm > $foo; done Otherwise the machine is stuck at PC2 state always. So we have a fix I guess? Anyway if there is anything alse I can try or provide you with more debug output please let me know. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
