Still fixing my ultrabook 'kit' from Dell. Next on the list is its inability to wake from sleep. I get as far as the Dell logo and then it hangs. If I press the space bar after a bit the Windows Hello facial recognition leds flash and the logo turns into white/grey fuzz. The only way out is a hard restart. I have reflashed the BIOS.
Any ideas anyone?
Thanks in advance
EDIT: after the Windows Hello LEDs flash, the external monitor starts normally and just the laptop screen hangs with the white noise square, so the laptop is starting, but the screen is not.
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I am also having this issue on the Ubuntu Developer edition. I would like to enable deep sleep (S3) in the laptop but it seems broken. When the system tries to wake up, the system crashes and is only recoverable by forcing a shutdown by holding the power button.
here is some output for when I try to enable deep sleep. It never prints Syncing file systems.
Mar 24 17:26:29 moxy systemd: Reached target Sleep. Mar 24 17:26:29 moxy systemd: Starting Suspend... Mar 24 17:26:29 moxy systemd-sleep: Suspending system... Mar 24 17:26:29 moxy kernel: PM: suspend entry (deep) -- Reboot --
s2idle does work however, but this consumes so much power while the lid is shut, it's not really sleeping.
Mar 24 17:18:45 moxy systemd: Reached target Sleep. Mar 24 17:18:45 moxy systemd: Starting Suspend... Mar 24 17:18:45 moxy systemd-sleep: Suspending system... Mar 24 17:18:45 moxy kernel: PM: suspend entry (s2idle) Mar 24 17:18:45 moxy kernel: PM: Syncing filesystems ... done.
I would like to not use s2idle.
Edit adding more debugging information from dmesg here:
This is the output from a resume of from s2idle. Which doesn't seem healthy either.
This seems to have worked.
You didn't specify if you are on Windows or Linux since this laptop is sold with both options.
On Linux at least I resolved the issue by disabling "sign of life" for the Dell logo under post settings in the bios.
Now deep sleep works for me.
(Running Fedora 31 5.7 rc2 but suspect it should work the same for any modern setup)