Confirmed on Asus S6F notebook for both standby and suspend. Attached dmesg output for standby.
The relevant lines: [ 251.348088] PM: Entering mem sleep [ 251.348130] Suspending console(s) (use no_console_suspend to debug) [ 251.348966] sd 0:0:0:0: [sda] Synchronizing SCSI cache [ 251.349845] sd 0:0:0:0: [sda] Stopping disk [ 251.436092] legacy_suspend(): pnp_bus_suspend+0x0/0x90 returns 38 [ 251.436097] PM: Device 00:0b failed to suspend: error 38 [ 251.436100] PM: Some devices failed to suspend [ 251.436336] sd 0:0:0:0: [sda] Starting disk ** Attachment added: "dmesg_standby.txt" https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/781977/+attachment/2416417/+files/dmesg_standby.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/781977 Title: Suspend only works once, fails second time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/781977/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs