Public bug reported: When I lock the computer from the whisker menu, the screen goes blank. It will remain blank even if I move the mouse, click or press keys. I can get the screen back on with Ctrl-Alt-F1 for a command prompt. Or Ctrl-Alt-F7 gives me large white text on a black background, saying "This session is locked. You'll be redirected to the unlock dialog automatically in a few seconds." And in a few seconds I do get an unlock dialog in a few seconds. The system works normally thereafter.
If I close the laptop lid while the laptop is plugged in, the screen is blank when I reopen it as above. Ctrl-Alt-F1 works as above. Ctrl- Alt-F7 produces the "This session is locked" message, but it does not proceed to the unlock dialog. This forces me to restart the computer. Power Manager is set to lock the screen when I close the laptop lid. If I close the laptop lid while the laptop is on battery power, the screen is blank when I reopen it as above. Ctrl-Alt-F1 works as above. Ctrl-Alt-F7 has no effect. This forces me to restart the computer. Power Manager is set to switch off the display when I close the laptop lid. If is suspend the laptop from the whisker menu, on restore it behaves the same as locking the computer. Ctrl-Alt-F7 allows me to get to the unlock dialog and continue using the computer. This is a System76 Galadro Ultra Pro. $ lsb_release -rd Description: Ubuntu 18.04.2 LTS Release: 18.04 $ apt-cache policy light-locker light-locker: Installed: 1.8.0-1ubuntu1 Candidate: 1.8.0-1ubuntu1 Version table: *** 1.8.0-1ubuntu1 500 500 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages 100 /var/lib/dpkg/status $ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 2 Core(s) per socket: 4 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 70 Model name: Intel(R) Core(TM) i7-4750HQ CPU @ 2.00GHz Stepping: 1 CPU MHz: 798.169 CPU max MHz: 3200.0000 CPU min MHz: 800.0000 BogoMIPS: 3990.40 Virtualization: VT-x L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 6144K L4 cache: 131072K NUMA node0 CPU(s): 0-7 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt dtherm ida arat pln pts md_clear flush_l1d ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: light-locker 1.8.0-1ubuntu1 ProcVersionSignature: Ubuntu 4.18.0-21.22~18.04.1-generic 4.18.20 Uname: Linux 4.18.0-21-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 CurrentDesktop: XFCE Date: Sat Jun 15 15:50:29 2019 InstallationDate: Installed on 2019-06-13 (2 days ago) InstallationMedia: Xubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) SourcePackage: light-locker UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: light-locker (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1832960 Title: Computer does not return from lock normally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/light-locker/+bug/1832960/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs