Hello Marius,
> Can you force a reboot/shutdown by using the magic SysRq key? (Hold > down Alt+PrintScren, then type S, U, B to reboot or S, U, O to power > off, while still holding the Alt+PrintScreen.) Y eah, Magic SysRq works, I am using it with REISUB or REISUO when needed. What's not working is just the shutdown through systemd commands after a few hours of uptime, which is really annoying. It does sound like systemd is waiting for some service to shut down, but > that service is taking a long time to shut down. > /usr/share/doc/systemd/README.Debian.gz has a section titled "Debugging > boot/shutdown problems". You may want to use the method described there > to see what's actually going on during the shutdown procedure. Yah, I saw it and tried to check but I could not. When the hang occurs the only one keyboard button working is the "Power Off". For example: If I start my laptop and then, run systemctl poweroff It's working fine; If I start my laptop and run systemctl poweroff after a few hours (4 for example) the system shutdown is freezing. I've already booted with command line and debug options and the system is freezing with messages like "reboot: Power down" on screen. It's like the system is halting instead of shutting down. Please check: https://launchpadlibrarian.net/306411830/IMG-20170214-WA0043.jpg I've filled a bug against systemd (#/1663794) in Launchpad but received no help til now. Thanks for the answer! Atenciosamente, *Renê Barbosa de Figueirêdo Lima* Website: http://renebarbosa.com.br 2017-03-10 6:31 GMT-03:00 Marius Gedminas <mar...@gedmin.as>: > On Thu, Mar 09, 2017 at 09:36:24PM -0300, Renê Barbosa wrote: > > After upgrading my laptop (Dell Inspiron 5447) from 14.04 to Ubuntu GNOME > > 16.04.2 I can't shut down after a few hours using the system (4+ hours). > It > > hangs in Plymouth and stays that way until I force the shutdown by > pressing > > the Power Button. > > Can you force a reboot/shutdown by using the magic SysRq key? (Hold > down Alt+PrintScren, then type S, U, B to reboot or S, U, O to power > off, while still holding the Alt+PrintScreen.) > > > It looks like this is a common bug (there are tons of questions on the > > Internet). I tried to fix it, but none of my attempts were effective. > > I had experienced some fun with reboots taking a long time (20-40 > *minutes*), which turned out to be due to swapoff being really slow. > But I see you already tried turning swap off, so it's not that. > > > Already tried: > > > > 1. Boot with acpi=force, acpi=noirq and pci=noacpi > > 2. Disable Swap > > 3. Run 'sync' before reboot or shutdown > > 4. Use another kernel version (4.7, 4.8, 4.9 and 4.10 from mainline) > > 5. Disabling USB 3.0 > > 6. Disabling TLP > > 7. Install AMDGPU-PRO 16.60 > > > > The most interesting thing is: I can shutdown/reboot normally using 14.04 > > and the kernel from Xenial HWE. Is It a systemd bug? > > It does sound like systemd is waiting for some service to shut down, but > that service is taking a long time to shut down. > > /usr/share/doc/systemd/README.Debian.gz has a section titled "Debugging > boot/shutdown problems". You may want to use the method described there > to see what's actually going on during the shutdown procedure. > > Regards, > Marius Gedminas > -- > IBM motto: "TEN vowels? Don't you know vowels are scrd?" > -- Linus Torvalds > > -- > Ubuntu-GNOME mailing list > Ubuntu-GNOME@lists.ubuntu.com > Modify settings or unsubscribe at: https://lists.ubuntu.com/ > mailman/listinfo/ubuntu-gnome > > -- Ubuntu-GNOME mailing list Ubuntu-GNOME@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-gnome
