Thank you for looking into this.
The issue still exists when using mainline kernel v4.19-rc5 or
v4.3.6-wily.
I did not upgrade my Ubuntu installation. However the black screen
occurs using the Ubuntu 18.04.1 live image, too. But the black screen
did not occur using the latest Ubuntu 16.04 live image. With "live
image" I am refering to "installation media" / "startup disk".
The only "upgrade" I did was removing my secondary display.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1793934
Title:
Black Screen After A Few Minutes
Status in linux package in Ubuntu:
Confirmed
Bug description:
Edit 1:
- added "installing mainline linux kernel v4.3.6-wily/" to things I tried
I first encountered the issue on Kubuntu 18.04 when I removed my 2nd monitor,
the screen went black after 5-30 seconds, forcing me to shutdown the PC by
pressing the power button. I tried the following to resolve the black screen
issue:
- disconnecting the 1st instead of the 2nd monitor
- using Ubuntu 18.04 (not Kubuntu)
- using Wayland
- installing the latest mainline linux kernel 4.19rc4
- installing mainline linux kernel v4.3.6-wily/
The only things that worked so far are:
- Having both Monitors connected
- nomodeset or recovery mode
- using Ubuntu Gnome 16.04
- login via tty/terminal
When the PC was turned off for a while, I have to wait for a few minutes or
start lots of applications for the black screen to occur. If the PC was
restarted several times due to this bug, a blank screen may occur as soon as I
see the login screen.
The issue also occurs during installation when autodetecting the keyboard
type or after selecting the installation type (Minimal Installation or Normal
Installation etc.)
My Hardware:
- ASRock H87 Pro4
- Intel i5-4570
- AMD Radeon R9 390
- 1st Monitor connected via DisplayPort to HDMI adapter cable (or DVI-D)
- 2nd Monitor connected via DVI-D cable
- Windows 10 is installed on a separate SSD and is working just fine
(Although Windows 10 is doing some kind of boot repair when switching from
Ubuntu to Windows)
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-29-generic 4.15.0-29.31
ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
Uname: Linux 4.15.0-29-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ubuntu 2031 F.... pulseaudio
/dev/snd/controlC1: ubuntu 2031 F.... pulseaudio
CasperVersion: 1.394
CurrentDesktop: ubuntu:GNOME
Date: Sun Sep 23 06:03:27 2018
LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: file=/cdrom/preseed/username.seed boot=casper
initrd=/casper/initrd.lz quiet splash --- nomodeset
keyboard-configuration/layoutcode=de
RelatedPackageVersions:
linux-restricted-modules-4.15.0-29-generic N/A
linux-backports-modules-4.15.0-29-generic N/A
linux-firmware 1.173.1
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/03/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P2.20
dmi.board.name: H87 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.:bvrP2.20:bd08/03/2015:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnH87Pro4: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.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
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