External Monitor Blank After Resume from Screen Blank
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
1) Description: Ubuntu 22.04 LTS | Release: 22.04
2) Not sure which package controls the display?
3) What you expected to happen
I have a laptop screen and an external monitor. My Screen Blank (Settings > Power > Screen Blank) is set to turn off the screens after 1 minute of inactivity. This works great, both screens turn off after 1 minute of inactivity. I expect both screens to turn back on when I move the mouse or touch the keyboard, however this does not always happen and one of them remains blank.
4) What happened instead
When I go to wake up the screens by moving the mouse or touching the keyboard, sometimes the external monitor does not turn on (only the laptop screen turns on) and sometimes the laptop screen does not turn on (only the external monitor turns on).
This has only been happening for the past few months, in previous versions of Ubuntu everything worked perfectly. It's starting to annoy me and I can't find any other bugs like it, so I decided to report it.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-
ProcVersionSign
Uname: Linux 5.15.0-39-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
CasperMD5CheckR
CurrentDesktop: ubuntu:GNOME
Date: Thu Jun 23 16:21:54 2022
InstallationDate: Installed on 2022-02-18 (124 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
MachineType: Dell Inc. Inspiron 7348
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 20220329.
SourcePackage: linux
UpgradeStatus: Upgraded to jammy on 2022-05-09 (45 days ago)
dmi.bios.date: 11/13/2015
dmi.bios.release: 65.8
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.name: 0VRRVW
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.chassis.
dmi.modalias: dmi:bvnDellInc.
dmi.product.name: Inspiron 7348
dmi.product.sku: 0675
dmi.product.
dmi.sys.vendor: Dell Inc.
Also want to add the following details:
Display Mode: Join Displays
Primary Display: Built-in Display (Laptop screen)
Fractional Scaling: Off for both screens.