Public bug reported: After updating to 18.04 when the system automatically suspends/hibernates after non-use, the screen goes black, but will not wake up by taping the space bar, nor does it display the hibernation screen. Additionally, I'm using two screens the laptop and an external monitor connected with the Mini Display port. When required to come out of suspend, each screen behaves differently. The laptop screen flashes while the external monitor may show any of these: 1) background screen image with no tool bars or menu; 2) remains black; or 3) shows a gray image. The only way to recover is to reboot, either by holding the power button or Ctrl-F1 to log back into the system and use the reboot command; only the external monitor will recover to a terminal screen.
Upgrading the kernel from 4.15 thru 4.19 does not change the suspend/hibernation issue. It seems to be video related issue, since HDMI port reacts differently than the Mini Display port, in that device settings do not operate the same and changing the settings can cause the same type of screen crash. Additionally, trying NVIDIA drivers will help with the suspend/hibernation problem and allows the hibernation screen to show, but is not a cure. Sometimes the NVIDIA drivers will allow it to come back from hibernation and sometimes not. My suspicion is that the drivers are not correct for the Intel video card. I am also flummoxed by the fact that I cannot control suspend/hibernation. There is no obvious way to keep the system from suspending. Screen lock is OFF. Automatic suspend is OFF. Power button suspend is OFF. There needs to be more control; the ability to eliminate any and all suspend operations is a must! With this type of control, I could have kept if from suspending until a fix is generated. Reports are as follows: - lspci: 00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09) 00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09) 00:04.0 Signal processing controller: Intel Corporation Haswell-ULT Thermal Subsystem (rev 09) 00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04) 00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04) 00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4) 00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4) 00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04) 00:1f.6 Signal processing controller: Intel Corporation 8 Series Thermal (rev 04) 02:00.0 Network controller: Intel Corporation Wireless 7260 (rev bb) - ubuntu-bug linux: Problem in linux-image-4.19.17-041907-generic cannot be reported, this report is about a package that is not installed - cat /proc/version_signature > version.log: cat: /proc/version_signature: No such file or directory - sudo lspci -vnvn > lspci-vnvn.log: (no response) - lsb_release -rd: Ubuntu 18.04 LTS - apt-cache policy pkgname: N: Unable to locate package pkgname - sudo lshw -C display; uname -a; lsb_release -a; sudo dmidecode -t 1: *-display description: VGA compatible controller product: Haswell-ULT Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:42 memory:f7800000-f7bfffff memory:e0000000-efffffff ioport:f000(size=64) memory:c0000-dffff Linux tablet3 4.19.7-041907-generic #201812052010 SMP Wed Dec 5 20:11:58 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux LSB Version: core-9.20170808ubuntu1-noarch:printing-9.20170808ubuntu1-noarch:security-9.20170808ubuntu1-noarch Distributor ID: Ubuntu Description: Ubuntu 18.04 LTS Release: 18.04 Codename: bionic ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Tags: bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1807264 Title: Ubuntu 18.04 Video Crash on Suspend/Hibernate To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1807264/+subscriptions -- ubuntu-bugs mailing list email@example.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs