Public bug reported:
Steps to reproduce
Boot Ubuntu 26.04.
Suspend the laptop.
Resume from suspend.
Expected result
The display resumes normally.
Actual result
After every resume, the internal display briefly turns completely black
at a regular interval (about 1.5–2 times per second). The flicker
continues indefinitely until the machine is rebooted.
Additional information
Acer Aspire VX5-591G
Intel HD Graphics 630 (internal display)
NVIDIA GTX 1050 (prime-select on-demand)
Wayland session
Linux 7.0.0-28-generic
No i915 or DRM errors appear in dmesg or journalctl
Tested without success:
i915.enable_psr=0
i915.enable_fbc=0
NVreg_PreserveVideoMemoryAllocations=0/1
ACPI suspend mode deep
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-28-generic 7.0.0-28.28
ProcVersionSignature: Ubuntu 7.0.0-28.28-generic 7.0.12
Uname: Linux 7.0.0-28-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: emie 3612 F.... wireplumber
/dev/snd/seq: emie 3596 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Aug 3 14:21:11 2026
InstallationDate: Installed on 2026-04-29 (96 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 04ca:3016 Lite-On Technology Corp.
Bus 001 Device 003: ID 0bda:57f3 Realtek Semiconductor Corp. HD WebCam
Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card
Reader Controller
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
MachineType: Acer Aspire VX5-591G
ProcEnviron:
LANG=fr_FR.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-28-generic
root=UUID=f81fcc4b-caa0-44a5-a495-c11133dd49fb ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/07/2017
dmi.bios.release: 1.6
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.06
dmi.board.asset.tag: Type2 - Board Serial Number
dmi.board.name: Wish_KLS
dmi.board.vendor: KBL
dmi.board.version: V1.06
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.06
dmi.ec.firmware.release: 1.3
dmi.modalias:
dmi:bvnInsydeCorp.:bvrV1.06:bd07/07/2017:br1.6:efr1.3:svnAcer:pnAspireVX5-591G:pvrV1.06:rvnKBL:rnWish_KLS:rvrV1.06:cvnAcer:ct10:cvrV1.06:sku0000000000000000:pfaAspireVX15:
dmi.product.family: Aspire VX 15
dmi.product.name: Aspire VX5-591G
dmi.product.sku: 0000000000000000
dmi.product.version: V1.06
dmi.sys.vendor: Acer
---
ProblemType: Bug
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: emie 3612 F.... wireplumber
/dev/snd/seq: emie 3596 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 26.04
InstallationDate: Installed on 2026-04-29 (96 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 04ca:3016 Lite-On Technology Corp.
Bus 001 Device 003: ID 0bda:57f3 Realtek Semiconductor Corp. HD WebCam
Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card
Reader Controller
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
MachineType: Acer Aspire VX5-591G
NonfreeKernelModules: nvidia_modeset nvidia
Package: linux (not installed)
ProcEnviron:
LANG=fr_FR.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-28-generic
root=UUID=f81fcc4b-caa0-44a5-a495-c11133dd49fb ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
ProcVersionSignature: Ubuntu 7.0.0-28.28-generic 7.0.12
Tags: resolute wayland-session
Uname: Linux 7.0.0-28-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sudo users
_MarkForUpload: True
dmi.bios.date: 07/07/2017
dmi.bios.release: 1.6
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.06
dmi.board.asset.tag: Type2 - Board Serial Number
dmi.board.name: Wish_KLS
dmi.board.vendor: KBL
dmi.board.version: V1.06
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.06
dmi.ec.firmware.release: 1.3
dmi.modalias:
dmi:bvnInsydeCorp.:bvrV1.06:bd07/07/2017:br1.6:efr1.3:svnAcer:pnAspireVX5-591G:pvrV1.06:rvnKBL:rnWish_KLS:rvrV1.06:cvnAcer:ct10:cvrV1.06:sku0000000000000000:pfaAspireVX15:
dmi.product.family: Aspire VX 15
dmi.product.name: Aspire VX5-591G
dmi.product.sku: 0000000000000000
dmi.product.version: V1.06
dmi.sys.vendor: Acer
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug apport-collected resolute wayland-session
** Description changed:
- L'écran de mon Aspire VX15 clignote après chaque sortie de veille.
+ Steps to reproduce
+
+ Boot Ubuntu 26.04.
+ Suspend the laptop.
+ Resume from suspend.
+
+ Expected result
+
+ The display resumes normally.
+
+ Actual result
+
+ After every resume, the internal display briefly turns completely black
+ at a regular interval (about 1.5–2 times per second). The flicker
+ continues indefinitely until the machine is rebooted.
+
+ Additional information
+
+ Acer Aspire VX5-591G
+ Intel HD Graphics 630 (internal display)
+ NVIDIA GTX 1050 (prime-select on-demand)
+ Wayland session
+ Linux 7.0.0-28-generic
+ No i915 or DRM errors appear in dmesg or journalctl
+ Tested without success:
+ i915.enable_psr=0
+ i915.enable_fbc=0
+ NVreg_PreserveVideoMemoryAllocations=0/1
+ ACPI suspend mode deep
+
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-28-generic 7.0.0-28.28
ProcVersionSignature: Ubuntu 7.0.0-28.28-generic 7.0.12
Uname: Linux 7.0.0-28-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
- USER PID ACCESS COMMAND
- /dev/snd/controlC0: emie 3612 F.... wireplumber
- /dev/snd/seq: emie 3596 F.... pipewire
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC0: emie 3612 F.... wireplumber
+ /dev/snd/seq: emie 3596 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Aug 3 14:21:11 2026
InstallationDate: Installed on 2026-04-29 (96 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64
(20260423.1)
Lsusb:
- Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
- Bus 001 Device 002: ID 04ca:3016 Lite-On Technology Corp.
- Bus 001 Device 003: ID 0bda:57f3 Realtek Semiconductor Corp. HD WebCam
- Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card
Reader Controller
- Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
+ Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+ Bus 001 Device 002: ID 04ca:3016 Lite-On Technology Corp.
+ Bus 001 Device 003: ID 0bda:57f3 Realtek Semiconductor Corp. HD WebCam
+ Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card
Reader Controller
+ Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
MachineType: Acer Aspire VX5-591G
ProcEnviron:
- LANG=fr_FR.UTF-8
- PATH=(custom, no user)
- SHELL=/bin/bash
- TERM=xterm-256color
- XDG_RUNTIME_DIR=<set>
+ LANG=fr_FR.UTF-8
+ PATH=(custom, no user)
+ SHELL=/bin/bash
+ TERM=xterm-256color
+ XDG_RUNTIME_DIR=<set>
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-28-generic
root=UUID=f81fcc4b-caa0-44a5-a495-c11133dd49fb ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/07/2017
dmi.bios.release: 1.6
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.06
dmi.board.asset.tag: Type2 - Board Serial Number
dmi.board.name: Wish_KLS
dmi.board.vendor: KBL
dmi.board.version: V1.06
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.06
dmi.ec.firmware.release: 1.3
dmi.modalias:
dmi:bvnInsydeCorp.:bvrV1.06:bd07/07/2017:br1.6:efr1.3:svnAcer:pnAspireVX5-591G:pvrV1.06:rvnKBL:rnWish_KLS:rvrV1.06:cvnAcer:ct10:cvrV1.06:sku0000000000000000:pfaAspireVX15:
dmi.product.family: Aspire VX 15
dmi.product.name: Aspire VX5-591G
dmi.product.sku: 0000000000000000
dmi.product.version: V1.06
dmi.sys.vendor: Acer
** Tags added: apport-collected
** Description changed:
Steps to reproduce
Boot Ubuntu 26.04.
Suspend the laptop.
Resume from suspend.
Expected result
The display resumes normally.
Actual result
After every resume, the internal display briefly turns completely black
at a regular interval (about 1.5–2 times per second). The flicker
continues indefinitely until the machine is rebooted.
Additional information
Acer Aspire VX5-591G
Intel HD Graphics 630 (internal display)
NVIDIA GTX 1050 (prime-select on-demand)
Wayland session
Linux 7.0.0-28-generic
No i915 or DRM errors appear in dmesg or journalctl
Tested without success:
i915.enable_psr=0
i915.enable_fbc=0
NVreg_PreserveVideoMemoryAllocations=0/1
ACPI suspend mode deep
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-28-generic 7.0.0-28.28
ProcVersionSignature: Ubuntu 7.0.0-28.28-generic 7.0.12
Uname: Linux 7.0.0-28-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: emie 3612 F.... wireplumber
/dev/snd/seq: emie 3596 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Aug 3 14:21:11 2026
InstallationDate: Installed on 2026-04-29 (96 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64
(20260423.1)
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 04ca:3016 Lite-On Technology Corp.
Bus 001 Device 003: ID 0bda:57f3 Realtek Semiconductor Corp. HD WebCam
Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card
Reader Controller
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
MachineType: Acer Aspire VX5-591G
ProcEnviron:
LANG=fr_FR.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-28-generic
root=UUID=f81fcc4b-caa0-44a5-a495-c11133dd49fb ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/07/2017
dmi.bios.release: 1.6
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.06
dmi.board.asset.tag: Type2 - Board Serial Number
dmi.board.name: Wish_KLS
dmi.board.vendor: KBL
dmi.board.version: V1.06
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.06
dmi.ec.firmware.release: 1.3
dmi.modalias:
dmi:bvnInsydeCorp.:bvrV1.06:bd07/07/2017:br1.6:efr1.3:svnAcer:pnAspireVX5-591G:pvrV1.06:rvnKBL:rnWish_KLS:rvrV1.06:cvnAcer:ct10:cvrV1.06:sku0000000000000000:pfaAspireVX15:
dmi.product.family: Aspire VX 15
dmi.product.name: Aspire VX5-591G
dmi.product.sku: 0000000000000000
dmi.product.version: V1.06
dmi.sys.vendor: Acer
+ ---
+ ProblemType: Bug
+ ApportVersion: 2.34.1-0ubuntu0.1
+ Architecture: amd64
+ AudioDevicesInUse:
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC0: emie 3612 F.... wireplumber
+ /dev/snd/seq: emie 3596 F.... pipewire
+ CasperMD5CheckResult: pass
+ CurrentDesktop: ubuntu:GNOME
+ DistroRelease: Ubuntu 26.04
+ InstallationDate: Installed on 2026-04-29 (96 days ago)
+ InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64
(20260423.1)
+ Lsusb:
+ Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+ Bus 001 Device 002: ID 04ca:3016 Lite-On Technology Corp.
+ Bus 001 Device 003: ID 0bda:57f3 Realtek Semiconductor Corp. HD WebCam
+ Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card
Reader Controller
+ Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
+ MachineType: Acer Aspire VX5-591G
+ NonfreeKernelModules: nvidia_modeset nvidia
+ Package: linux (not installed)
+ ProcEnviron:
+ LANG=fr_FR.UTF-8
+ PATH=(custom, no user)
+ SHELL=/bin/bash
+ TERM=xterm-256color
+ XDG_RUNTIME_DIR=<set>
+ ProcFB: 0 i915drmfb
+ ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-28-generic
root=UUID=f81fcc4b-caa0-44a5-a495-c11133dd49fb ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
+ ProcVersionSignature: Ubuntu 7.0.0-28.28-generic 7.0.12
+ Tags: resolute wayland-session
+ Uname: Linux 7.0.0-28-generic x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: adm cdrom dip lpadmin plugdev sudo users
+ _MarkForUpload: True
+ dmi.bios.date: 07/07/2017
+ dmi.bios.release: 1.6
+ dmi.bios.vendor: Insyde Corp.
+ dmi.bios.version: V1.06
+ dmi.board.asset.tag: Type2 - Board Serial Number
+ dmi.board.name: Wish_KLS
+ dmi.board.vendor: KBL
+ dmi.board.version: V1.06
+ dmi.chassis.type: 10
+ dmi.chassis.vendor: Acer
+ dmi.chassis.version: V1.06
+ dmi.ec.firmware.release: 1.3
+ dmi.modalias:
dmi:bvnInsydeCorp.:bvrV1.06:bd07/07/2017:br1.6:efr1.3:svnAcer:pnAspireVX5-591G:pvrV1.06:rvnKBL:rnWish_KLS:rvrV1.06:cvnAcer:ct10:cvrV1.06:sku0000000000000000:pfaAspireVX15:
+ dmi.product.family: Aspire VX 15
+ dmi.product.name: Aspire VX5-591G
+ dmi.product.sku: 0000000000000000
+ dmi.product.version: V1.06
+ dmi.sys.vendor: Acer
--
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https://bugs.launchpad.net/bugs/2162737
Title:
Clignotement de l'écran avec une sortie de veille
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