Public bug reported:
In disco; I have this issue where my external monitor (a ThinkVision
P24h-10) connected to my ThinkPad T480s turns off for short times while
actively working on the system. I noticed that if I don't move my mouse
at all while it's off, it stays off.
The T480s is connected to the monitor via USB-C; the monitor provides
DP, USB, and Power over that connection. When the display turns off, USB
devices continue working.
I have attached /sys/debug/dri/0 output from when the monitor was off
(a) vs on (b).
Other related bits:
* This also happens on HDMI, but much less often
* There are no log messages when the display turns on/off in the journal.
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-collected disco
** Tags added: apport-collected disco
** Description changed:
I have this issue where my external monitor (a ThinkVision P24h-10)
connected to my ThinkPad T480s turns off for short times while actively
working on the system. I noticed that if I don't move my mouse at all
while it's off, it stays off.
The T480s is connected to the monitor via USB-C; the monitor provides
DP, USB, and Power over that connection. When the display turns off, USB
devices continue working.
- I have attached /sys/debug/dri/0 output from when the monitor was off
- (a) vs on (b).
+ I have attached /sys/debug/dri/0 output from when the monitor was off (a) vs
on (b).
+ ---
+ ProblemType: Bug
+ ApportVersion: 2.20.10-0ubuntu23
+ Architecture: amd64
+ AudioDevicesInUse:
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC2: jak 17606 F.... pulseaudio
+ /dev/snd/controlC1: jak 17606 F.... pulseaudio
+ /dev/snd/controlC0: jak 17606 F.... pulseaudio
+ CurrentDesktop: GNOME
+ DistroRelease: Ubuntu 19.04
+ InstallationDate: Installed on 2018-03-14 (383 days ago)
+ InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180313)
+ MachineType: LENOVO 20L8S02D00
+ Package: linux (not installed)
+ ProcFB: 0 inteldrmfb
+ ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.0.0-7-generic
root=/dev/mapper/ubuntu--vg-root ro rootflags=subvol=@ quiet splash
i915.enable_gvt=1 intel_iommu=on vt.handoff=1
+ ProcVersionSignature: Ubuntu 5.0.0-7.8-generic 5.0.0
+ RelatedPackageVersions:
+ linux-restricted-modules-5.0.0-7-generic N/A
+ linux-backports-modules-5.0.0-7-generic N/A
+ linux-firmware 1.178
+ Tags: disco
+ Uname: Linux 5.0.0-7-generic x86_64
+ UpgradeStatus: Upgraded to disco on 2018-11-20 (133 days ago)
+ UserGroups: adm cdrom dip kvm libvirt lpadmin lxd plugdev sambashare sbuild
sudo
+ _MarkForUpload: True
+ dmi.bios.date: 02/19/2019
+ dmi.bios.vendor: LENOVO
+ dmi.bios.version: N22ET53W (1.30 )
+ dmi.board.asset.tag: Not Available
+ dmi.board.name: 20L8S02D00
+ dmi.board.vendor: LENOVO
+ dmi.board.version: Not Defined
+ dmi.chassis.asset.tag: No Asset Information
+ dmi.chassis.type: 10
+ dmi.chassis.vendor: LENOVO
+ dmi.chassis.version: None
+ dmi.modalias:
dmi:bvnLENOVO:bvrN22ET53W(1.30):bd02/19/2019:svnLENOVO:pn20L8S02D00:pvrThinkPadT480s:rvnLENOVO:rn20L8S02D00:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
+ dmi.product.family: ThinkPad T480s
+ dmi.product.name: 20L8S02D00
+ dmi.product.sku: LENOVO_MT_20L8_BU_Think_FM_ThinkPad T480s
+ dmi.product.version: ThinkPad T480s
+ dmi.sys.vendor: LENOVO
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https://bugs.launchpad.net/bugs/1822854
Title:
External monitor turns off for short period of times / until moving
mouse
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https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1822854/+subscriptions
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