Trying linux 5.0 from the -edge package on Ubuntu 18.04, I get screen flicker immediately on the desktop. Booting back to 4.18 the problem vanished, booting again to 5.0 it manifests itself.
I'm attaching logs in a moment.
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ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: jan 3315 F.... pulseaudio
/dev/snd/controlC0: jan 3315 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
HibernationDevice: RESUME=UUID=a098cd87-2263-488e-9dec-53e6bc2ac528
InstallationDate: Installed on 2012-11-10 (2383 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
Package: linux (not installed)
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-15-generic root=UUID=e02b75a8-e3de-42b7-a01f-8c4df9dd172e ro quiet splash amdgpu.ppfeaturemask=0xffff7fff usbhid.quirks=0x0079:0x0006:0x100000 vt.handoff=1
ProcVersionSignature: Ubuntu 5.0.0-15.16~18.04.1-generic 5.0.6
RelatedPackageVersions:
linux-restricted-modules-5.0.0-15-generic N/A
linux-backports-modules-5.0.0-15-generic N/A
linux-firmware 1.173.6
RfKill:
Tags: wayland-session bionic
Uname: Linux 5.0.0-15-generic x86_64
UpgradeStatus: Upgraded to bionic on 2019-01-17 (123 days ago)
UserGroups: adm cdrom debian-tor dip docker fuse libvirt libvirtd lpadmin plugdev sambashare sudo video
_MarkForUpload: True
dmi.bios.date: 07/06/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P4.90
dmi.board.name: AB350M Pro4
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP4.90:bd07/06/2018:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnAB350MPro4:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: To Be Filled By O.E.M.
dmi.product.sku: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
apport information