LXQt display ghosting when dragging icons or opening menus

[Leó Kolbeinsson]

Display ghosting when dragging icons or opening menus.
Have tested several machines and this only occurring on Intel NUC 8i3BEK - and only when
installing or using FOCAL Lubuntu 20.04 .

This also is occurring in the Live sessions before install.

I have tested Lubuntu Eoan 19.01 and Lubuntu Bionic 18.04.04 on this machine and cannot reproduce the issue.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
Uname: Linux 5.4.0-14-generic x86_64
ApportVersion: 2.20.11-0ubuntu18
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompositorRunning: None
CurrentDesktop: LXQt
Date: Mon Feb 24 18:23:21 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation Iris Plus Graphics 655 [8086:3ea5] (rev 01) (prog-if 00 [VGA controller])
   Subsystem: Intel Corporation Iris Plus Graphics 655 [8086:2074]
InstallationDate: Installed on 2020-02-24 (0 days ago)
InstallationMedia: Lubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200224)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 04f2:0402 Chicony Electronics Co., Ltd Genius LuxeMate i200 Keyboard
 Bus 001 Device 002: ID 2188:0ae1 USB OPTICAL MOUSE
 Bus 001 Device 004: ID 8087:0aaa Intel Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Intel(R) Client Systems NUC8i3BEK
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-14-generic root=UUID=11c10d68-db79-4d45-9bbe-8357e125b46b ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/18/2019
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BECFL357.86A.0073.2019.0618.1409
dmi.board.name: NUC8BEB
dmi.board.vendor: Intel Corporation
dmi.board.version: J72693-307
dmi.chassis.type: 35
dmi.chassis.vendor: Intel Corporation
dmi.chassis.version: 2.0
dmi.modalias: dmi:bvnIntelCorp.:bvrBECFL357.86A.0073.2019.0618.1409:bd06/18/2019:svnIntel(R)ClientSystems:pnNUC8i3BEK:pvrJ72748-306:rvnIntelCorporation:rnNUC8BEB:rvrJ72693-307:cvnIntelCorporation:ct35:cvr2.0:
dmi.product.family: BE
dmi.product.name: NUC8i3BEK
dmi.product.sku: BOXNUC8i3BEK
dmi.product.version: J72748-306
dmi.sys.vendor: Intel(R) Client Systems
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.100-4
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.0-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.7-2ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20190815-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1864526

[Leó Kolbeinsson (leok)]

Further to my initial report --

I have also tested with another monitor Dell U3419W with the same results.

[Leó Kolbeinsson (leok)]

Upon further testing I found out that if I go to LXQT Session Settings and select Compton the ghosting stops.Trying to open Compton from the accessoties menu does nothing - no response or error message.

[Leó Kolbeinsson (leok)]

Further testing and also find this bug on Dell Latitude 7280 laptop. again turning on "compton" and the ghosting stops.

[Daniel van Vugt (vanvugt)]

This bug needs to be assigned to an appropriate LXQt package. If you don't get a response soon then please also log the bug upstream at https://github.com/lxqt/lxqt/issues

[Leó Kolbeinsson (leok)]

@vanvugt

Upstream bug logged on github 11.03.2020
LXQt display ghosting #1768

and this their reply=

Should be reported to the Lubuntu team.
@tsujan tsujan closed this 2 minutes ago

[Leó Kolbeinsson (leok)]

Live session: tested for bug 1864526 display ghosting when dragging icons or opening menus.Selecting "compton" the ghosting stops. This was present on test machine:
Dell Latitude 7280 - Intel i5-7300U CPU 2.70GHz – 16Gb RAM – Intel HD Graphics 620 – Intel Ethernet I219-LM Gigabit – Intel Wireless AC8265 – Intel wireless Bluetooth – 500GB hard disk.