Hei, I have the same problem as Carsten Gräser (graeser), and in fact a similar laptop (Dell Latitude 7390). I tried all the possible kernels since 4.14 to 4.19, and suspend (sleep S3) does not work. Same symptoms: It suspends when I close the lid, but cannot resume. When I open the lid and press the power button, it flushes ones but the screen is black. No response, no mouse, all dead. The only solution is to press again on the power button which performs hard reset.
Important comment: when I suspend from the function key (Fn-suspend) it works, but only for a short time (less than a minute): after some time (I did not manage to find out exactly how many minutes) it cannot resume. When I close the lid, it fails compelety does not matter how long I wait. Strange! Currently using Linux version 4.19.7-041907-generic (kernel@kathleen) (gcc version 8.2.0 (Ubuntu 8.2.0-10ubuntu1)) #201812052010 SMP Wed Dec 5 20:11:58 UTC 2018 Tried 18.04 and than upgraded to 18.10, still the same problem. This is my hardware: barc@NTNU15333:~$ lspci 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 08) 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07) 00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 08) 00:13.0 Non-VGA unclassified device: Intel Corporation Sunrise Point-LP Integrated Sensor Hub (rev 21) 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21) 00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21) 00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 (rev 21) 00:15.2 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #2 (rev 21) 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21) 00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #1 (rev f1) 00:1c.7 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #8 (rev f1) 00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1) 00:1f.0 ISA bridge: Intel Corporation Intel(R) 100 Series Chipset Family LPC Controller/eSPI Controller - 9D4E (rev 21) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21) 00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21) 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21) 6c:00.0 Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78) 6d:00.0 Non-Volatile memory controller: SK hynix Device 1527 Thank you! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1801743 Title: Suspend fails in Kubuntu 18.04 but works fine in Kubuntu 17.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1801743/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
