Resume fails siliently after suspend to RAM

English Install/Boot/Login
#1

Hi

My laptop will not resume after suspend to RAM (low battery, or lid closed etc.). From user observation only, suspend seems to work normally, then resume “tries” (there’s a time when it looks as if it will work as previously) but then it reboots instead. This started after updates ~21st June. Further updates have been applied without success. The journal records a reboot (literally “-- Reboot --”) after lines indicating the system was put into sleep mode (e.g. last line before the reboot starts “systemd-sleep[16973]: preparing boot-loader: selecting entry openSUSE Tumbleweed”), and lastlog indicates a resume starts and then the system shuts down:

11676-  OK  ] Started Show Plymouth Boot Screen.
11677-  OK  ] Found device PM951 NVMe SAMSUNG 512GB primary.
11678-         Starting Resume from hiber…using device /dev/nvme0n1p2...
11679-  OK  ] Reached target Paths.
11680-  OK  ] Started Forward Password R…s to Plymouth Directory Watch.
11681-  OK  ] Started Resume from hibern…n using device /dev/nvme0n1p2.
11682-  OK  ] Reached target Local File Systems (Pre).
11683-  OK  ] Reached target Local File Systems.
11684-  OK  ] Reached target System Initialization.
11685-  OK  ] Reached target Basic System.
11686-  OK  ] Found device PM951 NVMe SAMSUNG 512GB primary.
11687-  OK  ] Reached target Initrd Root Device.
11688-         Starting File System Check…152f-4b0d-b1f4-ae8be0fe4241...
11689-  OK  ] Started File System Check on /dev/disk/by-uuid/c4750d41-152f-4b0d-b1f4-ae8be0fe4241.
11690-         Mounting /sysroot...
11691-  OK  ] Mounted /sysroot.
11692-  OK  ] Reached target Initrd Root File System.
11693-         Starting Reload Configuration from the Real Root...
11694-  OK  ] Started Reload Configuration from the Real Root.
11695-  OK  ] Reached target Initrd File Systems.
11696-  OK  ] Reached target Initrd Default Target.
11697-         Starting Cleaning Up and Shutting Down Daemons...
11698-  OK  ] Stopped target Remote File Systems.
11699-  OK  ] Stopped target Initrd Default Target.

Suspend/resume has normally worked without fail, since this (Dell XPS13) laptop was first installed in 2015. Any ideas?

#2

This is a long shot but are you running Chrome or Chromium when you try to Suspend to RAM? I have had periodic issues with those applications which is why I have stopped using them in favor of Firefox and Falkon for web browsers. I realize that is not a good solution but it is working for me.

Another thought, has anything else changed as of 21st of June on your system?