Could you try below command to see if it fixes your issue
echo on | sudo tee /sys/bus/pci/devices/0000:00:1f.3/power/control
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1875254
Title:
Intermittent display blackouts on event
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Focal:
New
Bug description:
Issues with the screen going black for a second on certain events on a dell
XPS 9370 2 in 1, especially when on battery.
Seems to be a known bug in arch
(https://wiki.archlinux.org/index.php/Dell_XPS_13_2-in-1_(7390)).
Last 5.6.7 kernel tested and the issues has disappears but pb with sound card.
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ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: lucie 2232 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: GNOME
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-04-25 (1 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Dell Inc. XPS 13 7390 2-in-1
Package: linux (not installed)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=fr_FR.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-26-generic
root=UUID=056fd229-d014-4b3b-a581-1b646105d1ed ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
RelatedPackageVersions:
linux-restricted-modules-5.4.0-26-generic N/A
linux-backports-modules-5.4.0-26-generic N/A
linux-firmware 1.187
Tags: focal
Uname: Linux 5.4.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 03/02/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.3.1
dmi.board.name: 06CDVY
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 31
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.3.1:bd03/02/2020:svnDellInc.:pnXPS1373902-in-1:pvr:rvnDellInc.:rn06CDVY:rvrA00:cvnDellInc.:ct31:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 7390 2-in-1
dmi.product.sku: 08B0
dmi.sys.vendor: Dell Inc.
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