Running Xubuntu 17.04 on a little old acer aspire one.
Suspend just doesn't seem to work very well on this computer. Suspending by closing the lid has never worked (even the screen remains on), and rather than troubleshoot it I just made a keybinding that suspends on Super-S. That worked fine for a while but in the last couple of days this new problem has appeared:
Periodically (about every third or fourth suspend) it now shows a black screen for a few seconds and then just puts me on the login screen. It doesn't seem to have anything to do with my keybinding as it also does this when suspending from the whisker menu. Also, it doesn't matter if suspending or shutting down, the result is the same. The only thing I can do is hard shut down the computer at that point.
I checked dmesg but it only showed messages since the last time I had force shut down, so no help there. Next time it happens I'll try to grab the dmesg output and post it here but I hoped maybe someone recognized the problem, it's annoying as when this happens I'm always trying to put my computer away and often cannot sit and troubleshoot it.
I think it might be related to this: laptop fails to suspend or hibernate but it at least does not appear to be the same module causing the issue as I do not have that module listed as enabled for wakeup. Here's my output on that:
sarai@ninjacer:~$ cat /proc/acpi/wakeup Device S-state Status Sysfs node USB0 S3 *enabled pci:0000:00:1d.0 USB1 S3 *enabled pci:0000:00:1d.1 USB2 S3 *enabled pci:0000:00:1d.2 USB3 S3 *enabled pci:0000:00:1d.3 USB7 S3 *enabled pci:0000:00:1d.7 RP01 S4 *disabled pci:0000:00:1c.0 PXSX S4 *enabled pci:0000:01:00.0 PXSX S4 *disabled pci:0000:02:00.0 PXSX S4 *disabled pci:0000:03:00.0 *disabled platform:rtsx_pci_sdmmc.0 *disabled platform:rtsx_pci_ms.0 PXSX S4 *disabled