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SUMMARY
When returning from "suspend" (sleep mode), the monitors do not turn on, or
rarely return with low resolution (640x480). Wayland does not allow resolution
change (attachment).
I have two HP V206hz monitors that have a maximum resolution of 1600x900x60hz
and are connected to a Radeon RX 6600 via cable (displayport > DVI).
STEPS TO REPRODUCE
1. Manually suspend the computer.
2. Wait for the suspend process to finish (front panel LED flashes).
3. Press any key to wake up the computer.
OBSERVED RESULT
A1 - The screens do not turn on (monitor LED is blinking) after manual
suspension.
A2 - Sometimes the screens turn on, but with low resolution (640x480).
A3 - Sometimes one of the screens returns with a resolution of 640x480 after
returning from automatic suspension (when the automatic shutdown of the splint
is not active).
A4 - If the screen turns off automatically (before the automatic suspension)
the monitor video returns with adequate resolution (1600x900)
EXPECTED OUTCOME
The screens turn on after the computer wakes up from sleep mode.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
OS: Kubuntu 22.04.2 LTS x86_64
Kernel: 5.19.0-42-generic
KDE Plasma Version: 5.24.7
KDE Framework Version: 5.92.0
Qt Version: 5.15.3
ADDITIONAL INFORMATION
To view any content, you must force restart with the power button or remove and
reinsert the display cable.
I installed the amd package for the gpu but the problem remained.
https://www.amd.com/en/support/graphics/amd-radeon-6000-series/amd-radeon-6600-series/amd-radeon-rx-6600
Attachment
dmesg (after removing and inserting displayport cable)
https://pastebin.com/Xbq3JaWT
dmesg (after return of sleep)
https://pastebin.com/9LPvK9JL
https://bugs.kde.org/show_bug.cgi?id=470180#attach_159212
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 5.19.0-42.43~22.04.1-generic 5.19.17
Uname: Linux 5.19.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.4
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: KDE
Date: Wed May 24 17:12:50 2023
DistUpgraded: Fresh install
DistroCodename: jammy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Navi 23 [Radeon RX 6600/6600 XT/6600M]
[1002:73ff] (rev c7) (prog-if 00 [VGA controller])
Subsystem: Tul Corporation / PowerColor Navi 23 [Radeon RX 6600/6600
XT/6600M] [148c:2413]
InstallationDate: Installed on 2023-05-20 (3 days ago)
InstallationMedia: Kubuntu 22.04.2 LTS "Jammy Jellyfish" - Release amd64
(20230223)
MachineType: To Be Filled By O.E.M. B550M-ITX/ac
ProcEnviron:
LANGUAGE=pt_BR:pt:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=
LANG=pt_BR.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-5.19.0-42-generic
root=UUID=14e3583d-5b94-40f1-b1ff-0d1d175e7bc8 ro rootflags=subvol=@ quiet
splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/27/2022
dmi.bios.release: 5.17
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: P2.20
dmi.board.name: B550M-ITX/ac
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:bvnAmericanMegatrendsInternational,LLC.:bvrP2.20:bd12/27/2022:br5.17:svnToBeFilledByO.E.M.:pnB550M-ITX/ac:pvrToBeFilledByO.E.M.:rvnASRock:rnB550M-ITX/ac:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:skuToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: B550M-ITX/ac
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.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.113-2~ubuntu0.22.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 22.2.5-0ubuntu0.1~22.04.2
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.4-2ubuntu1.7~22.04.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1
** Affects: kwin (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug jammy kubuntu ubuntu
--
Screens won't turn on after manually suspending
https://bugs.launchpad.net/bugs/2020709
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