I have the same problem. Suspend works fine with any kernel version4.14.x, does not work with any version from 4.15.x. I have blacklisted the mei modules, it did not solve the problem. Following are my lsmod.
debashishc@DebashishC-ublp:~$ lsmod Module Size Used by btrfs 1343488 0 zstd_compress 188416 1 btrfs xor 24576 1 btrfs raid6_pq 122880 1 btrfs ufs 86016 0 qnx4 16384 0 hfsplus 122880 0 hfs 69632 0 minix 40960 0 ntfs 110592 0 msdos 20480 0 jfs 217088 0 xfs 1441792 0 libcrc32c 16384 1 xfs cpuid 16384 0 rfcomm 86016 16 ccm 20480 6 cmac 16384 1 bnep 24576 2 arc4 16384 2 uvcvideo 102400 0 videobuf2_vmalloc 16384 1 uvcvideo videobuf2_memops 16384 1 videobuf2_vmalloc videobuf2_v4l2 28672 1 uvcvideo videobuf2_core 45056 2 videobuf2_v4l2,uvcvideo btusb 53248 0 btrtl 16384 1 btusb btbcm 16384 1 btusb videodev 208896 3 videobuf2_core,videobuf2_v4l2,uvcvideo btintel 16384 1 btusb media 45056 2 videodev,uvcvideo bluetooth 626688 52 btrtl,btintel,btbcm,bnep,btusb,rfcomm ecdh_generic 24576 1 bluetooth joydev 24576 0 hid_multitouch 24576 0 snd_hda_codec_hdmi 61440 1 snd_hda_codec_realtek 110592 1 snd_hda_codec_generic 86016 1 snd_hda_codec_realtek snd_soc_skl 98304 0 snd_soc_skl_ipc 73728 1 snd_soc_skl snd_soc_sst_ipc 16384 1 snd_soc_skl_ipc snd_soc_sst_dsp 36864 1 snd_soc_skl_ipc snd_hda_ext_core 28672 1 snd_soc_skl snd_soc_sst_match 16384 1 snd_soc_skl snd_soc_core 266240 1 snd_soc_skl snd_compress 24576 1 snd_soc_core ac97_bus 16384 1 snd_soc_core snd_pcm_dmaengine 16384 1 snd_soc_core ath10k_pci 53248 0 ath10k_core 417792 1 ath10k_pci ath 32768 1 ath10k_core mac80211 925696 1 ath10k_core cfg80211 733184 3 ath,mac80211,ath10k_core rtsx_pci_ms 20480 0 memstick 16384 1 rtsx_pci_ms wmi_bmof 16384 0 dell_wmi 16384 0 dell_rbtn 16384 0 dell_laptop 24576 1 dell_smbios 16384 2 dell_wmi,dell_laptop dcdbas 16384 1 dell_smbios dell_smm_hwmon 16384 0 binfmt_misc 20480 1 nls_iso8859_1 16384 1 intel_rapl 24576 0 x86_pkg_temp_thermal 16384 0 intel_powerclamp 16384 0 snd_hda_intel 45056 8 coretemp 16384 0 snd_hda_codec 151552 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek kvm_intel 241664 0 snd_hda_core 90112 7 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek,snd_soc_skl snd_hwdep 16384 1 snd_hda_codec kvm 704512 1 kvm_intel snd_pcm 118784 9 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_soc_core,snd_soc_skl,snd_hda_core,snd_pcm_dmaengine irqbypass 16384 1 kvm crct10dif_pclmul 16384 0 crc32_pclmul 16384 0 ghash_clmulni_intel 16384 0 pcbc 16384 0 aesni_intel 188416 6 snd_seq_midi 16384 0 snd_seq_midi_event 16384 1 snd_seq_midi aes_x86_64 20480 1 aesni_intel crypto_simd 16384 1 aesni_intel snd_rawmidi 40960 1 snd_seq_midi glue_helper 16384 1 aesni_intel cryptd 28672 3 crypto_simd,ghash_clmulni_intel,aesni_intel intel_cstate 20480 0 intel_rapl_perf 16384 0 snd_seq 81920 2 snd_seq_midi,snd_seq_midi_event input_leds 16384 0 snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi snd_timer 36864 2 snd_seq,snd_pcm serio_raw 16384 0 i915 1912832 63 snd 94208 28 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi soundcore 16384 1 snd drm_kms_helper 204800 1 i915 idma64 20480 0 virt_dma 16384 1 idma64 drm 438272 24 drm_kms_helper,i915 shpchp 40960 0 i2c_algo_bit 16384 1 i915 fb_sys_fops 16384 1 drm_kms_helper syscopyarea 16384 1 drm_kms_helper processor_thermal_device 16384 0 sysfillrect 16384 1 drm_kms_helper intel_lpss_pci 20480 0 sysimgblt 16384 1 drm_kms_helper intel_soc_dts_iosf 16384 1 processor_thermal_device intel_pch_thermal 16384 0 wmi 28672 2 dell_wmi,wmi_bmof intel_hid 16384 0 intel_lpss_acpi 16384 0 int3403_thermal 16384 0 int3400_thermal 16384 0 sparse_keymap 16384 2 intel_hid,dell_wmi intel_lpss 16384 2 intel_lpss_pci,intel_lpss_acpi acpi_thermal_rel 16384 1 int3400_thermal int340x_thermal_zone 16384 2 int3403_thermal,processor_thermal_device video 45056 3 dell_wmi,dell_laptop,i915 acpi_pad 180224 0 mac_hid 16384 0 sch_fq_codel 20480 6 parport_pc 36864 0 ppdev 20480 0 lp 20480 0 parport 57344 3 parport_pc,lp,ppdev ip_tables 28672 0 x_tables 45056 1 ip_tables autofs4 49152 2 hid_logitech_hidpp 36864 0 hid_logitech_dj 24576 0 usbhid 57344 0 rtsx_pci_sdmmc 28672 0 e1000e 282624 0 ptp 20480 1 e1000e pps_core 20480 1 ptp ahci 40960 2 rtsx_pci 65536 2 rtsx_pci_sdmmc,rtsx_pci_ms libahci 40960 1 ahci i2c_hid 24576 0 hid 131072 6 i2c_hid,usbhid,hid_multitouch,hid_logitech_dj,hid_logitech_hidpp -- 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/1801743 Title: Suspend fails in Kubuntu 18.04 but works fine in Kubuntu 17.10 Status in linux package in Ubuntu: Confirmed Bug description: After upgrading to kubuntu 18.04 resuming from suspend fails in most cases on my laptop. When trying to resume the power LED is turned on, but the screen stays black and the system does not respond at all. Switching to another virtual terminal is not possible and closing the lid again does not show any effect. The hardware is a Dell Latitude e7440 with core i7 4600U and intel graphics only. The only way to change the status is a hard shut-down by long pressing the power button. The last message in kern.log is: PM: suspend entry (deep) The described problem is similar to bug #1774950. However, the latter is considered to be fixed with kernel 4.15.0-38 while my problem persists with this kernel. Output of 'sudo lspci -vnvn' is attached, the result of 'cat /proc/version_signature' is: Ubuntu 4.15.0-38.41-generic 4.15.18 --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: graeser 2116 F.... pulseaudio /dev/snd/controlC0: graeser 2116 F.... pulseaudio CurrentDesktop: KDE DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-precise-amd64-20130203-1 DistroRelease: Ubuntu 18.04 EcryptfsInUse: Yes HibernationDevice: RESUME=none InstallationDate: Installed on 2014-03-20 (1690 days ago) InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20130203-13:50 MachineType: Dell Inc. Latitude E7440 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-38-generic root=UUID=25e09413-4977-401f-a034-0465b444518b ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-38-generic N/A linux-backports-modules-4.15.0-38-generic N/A linux-firmware 1.173.1 Tags: bionic Uname: Linux 4.15.0-38-generic x86_64 UpgradeStatus: Upgraded to bionic on 2018-10-15 (20 days ago) UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 02/02/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A14 dmi.board.name: 0WK2DM dmi.board.vendor: Dell Inc. dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA14:bd02/02/2015:svnDellInc.:pnLatitudeE7440:pvr01:rvnDellInc.:rn0WK2DM:rvr:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E7440 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. 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