I tried with Linux 4.14.0-041400rc3-generic, the problem is still there unfortunately.
I attached a piece of /var/log/kern.log when I did the suspend/resume. Interesting parts: Oct 3 21:03:28 c18 kernel: [ 62.519787] [drm:amdgpu_vce_ring_test_ring [amdgpu]] *ERROR* amdgpu: ring 14 test failed Oct 3 21:03:28 c18 kernel: [ 62.519795] [drm:amdgpu_resume_phase2 [amdgpu]] *ERROR* resume of IP block <vce_v3_0> failed -110 Oct 3 21:03:28 c18 kernel: [ 62.519803] [drm:amdgpu_device_resume [amdgpu]] *ERROR* amdgpu_resume failed (-110). Oct 3 21:03:28 c18 kernel: [ 62.519806] dpm_run_callback(): pci_pm_resume+0x0/0xb0 returns -110 Oct 3 21:03:28 c18 kernel: [ 62.519806] PM: Device 0000:01:00.0 failed to resume async: error -110 and: Oct 3 21:04:21 c18 kernel: [ 115.155901] [drm:atom_op_jump [amdgpu]] *ERROR* atombios stuck in loop for more than 5secs aborting Oct 3 21:04:21 c18 kernel: [ 115.155912] [drm:amdgpu_atom_execute_table_locked [amdgpu]] *ERROR* atombios stuck executing BFFC (len 116, WS 0, PS 0) @ 0xC049 Oct 3 21:04:21 c18 kernel: [ 115.155955] amdgpu 0000:01:00.0: ffff9ffe950e2800 unpin not necessary It seems that my AMD RX 480 is causing the problem. I wonder who should be contacted to get more help about this hardware/driver. ** Attachment added: "kern.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1720622/+attachment/4961736/+files/kern.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1720622 Title: Cannot wake-up from sleep mode Status in linux package in Ubuntu: Incomplete Bug description: Since Ubuntu 17.10 (development version) my computer can go to sleep mode but it cannot wake up. It used to work fine with Ubuntu 17.04 I tried with both Gnome and Unity. The computer correctly goes to sleep mode. I can hear the power management unit specific click when it's done. If I try to wake up the computer (by using the power button, as I used to do on 17.04), some devices wake up like the keyboard and the mouse, but the monitor stays off. /proc/version_signature: Ubuntu 4.13.0-12.13-generic 4.13.3 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-12-generic 4.13.0-12.13 ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3 Uname: Linux 4.13.0-12-generic x86_64 ApportVersion: 2.20.7-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: hadrien 1559 F.... pulseaudio /dev/snd/controlC1: hadrien 1559 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Sun Oct 1 12:37:04 2017 EcryptfsInUse: Yes InstallationDate: Installed on 2017-01-03 (270 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2) IwConfig: enp3s0 no wireless extensions. lo no wireless extensions. Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 046d:c318 Logitech, Inc. Illuminated Keyboard Bus 001 Device 004: ID 1532:0101 Razer USA, Ltd Copperhead Mouse Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: MSI MS-7971 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=fr_FR.UTF-8 SHELL=/bin/bash ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-12-generic root=UUID=6ed824e6-8d9c-4383-913b-ca2bd564bfcb ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-12-generic N/A linux-backports-modules-4.13.0-12-generic N/A linux-firmware 1.168 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-09-30 (1 days ago) dmi.bios.date: 12/21/2016 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.H0 dmi.board.asset.tag: Default string dmi.board.name: Z170-A PRO (MS-7971) dmi.board.vendor: MSI dmi.board.version: 1.0 dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: MSI dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.H0:bd12/21/2016:svnMSI:pnMS-7971:pvr1.0:rvnMSI:rnZ170-APRO(MS-7971):rvr1.0:cvnMSI:ct3:cvr1.0: dmi.product.family: Default string dmi.product.name: MS-7971 dmi.product.version: 1.0 dmi.sys.vendor: MSI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1720622/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp