kubuntu focal.3 no wallpaper on one display, right-click not working on that display

[Chris Guiver]

** Background

Performing a QA-test install (Lubuntu impish) to
- hp dc7700 (c2d-e6320, 5gb, nvidia quadro nvs 290)

testcase: install using existing partition (sda1)

On the box existed
- Lubuntu focal.3 (system selected for replacing with impish)
- Xubuntu focal.3 (an install-alongside or auto-resize QA-test)
- Kubuntu focal.3 (another install-alongside/auto-resize QA-test)

I'm booting the Kubuntu focal.3 expecting no changes.. The QA-test done days ago was good and I passed it without issues. This will be it's first login after that initial-post-install checks where I noticed nothing wrong.

** What I see

My displays are setup to match my config (one display set above the other), however

wallpaper on my.bottom display is present & looks normal

NO WALLPAPER appears on my.top display

right-click on my.bottom display is pulling up menu allowing me Create.New..Configure.Desktop as expected.

right-click on my.TOP display however does nothing

Moving windows around is perfect..

** ACTUAL BEHAVIOR

Wallpaper on both monitors, not just my.bottom display
Right click of background pulls up menu on both displays, not just my.bottom

** EXPECTED BEHAVIOR

Wallpaper on both monitors, and right-click works both displays.

(It did this in the initial boot after QA-test install; this is now 2nd boot of system which is first time I've noted this behavior)

** Note (LXQt has exhibited same behavior in focal)

This thought is likely red herring - it reminded me of https://bugs.launchpad.net/openbox/+bug/1845756 which is tagged against openbox thus doesn't apply here. Originally I said "I've had this behavior before with LXQt & I can't recall if this was put down to an issue in Qt 5.12.8 (fixed in later releases), or openbox (which won't apply here of course).."
--

I'll complete this QA-test and aim to return and add more later.
This box is only used for QA-test installs, so system may not exist for very long. It's likely more useful if I repeated this with Kubuntu impish... but vanvugt's comment on https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1930945 implies that's of limited value

This bug MAYBE should be filed against linux/nouveau

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: plasma-workspace 4:5.18.5-0ubuntu0.1
ProcVersionSignature: Ubuntu 5.11.0-27.29~20.04.1-generic 5.11.22
Uname: Linux 5.11.0-27-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Sat Aug 28 13:32:25 2021
InstallationDate: Installed on 2021-08-26 (2 days ago)
InstallationMedia: Kubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819.1)
SourcePackage: plasma-workspace
UpgradeStatus: No upgrade log present (probably fresh install)
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: guiverc 804 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: KDE
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2021-08-26 (2 days ago)
InstallationMedia: Kubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819.1)
IwConfig:
 lo no wireless extensions.

 enp0s25 no wireless extensions.
MachineType: Hewlett-Packard HP Compaq dc7700 Small Form Factor
Package: linux (not installed)
ProcFB: 0 nouveaudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-27-generic root=UUID=27bd4e3d-7a58-434f-b833-a1d616e66b9e ro quiet splash
ProcVersionSignature: Ubuntu 5.11.0-27.29~20.04.1-generic 5.11.22
RelatedPackageVersions:
 linux-restricted-modules-5.11.0-27-generic N/A
 linux-backports-modules-5.11.0-27-generic N/A
 linux-firmware 1.187.16
RfKill:

Tags: focal
Uname: Linux 5.11.0-27-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: 08/30/2006
dmi.bios.release: 1.5
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 786E1 v01.05
dmi.board.name: 0A54h
dmi.board.vendor: Hewlett-Packard
dmi.chassis.type: 4
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr786E1v01.05:bd08/30/2006:br1.5:svnHewlett-Packard:pnHPCompaqdc7700SmallFormFactor:pvr:rvnHewlett-Packard:rn0A54h:rvr:cvnHewlett-Packard:ct4:cvr:
dmi.product.family: 103C_53307F
dmi.product.name: HP Compaq dc7700 Small Form Factor
dmi.product.sku: ET090AV
dmi.sys.vendor: Hewlett-Packard

[Chris Guiver (guiverc)]

This issue maybe related to
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1919266 (hirsute)
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1930945 (impish)

ie. it's maybe NOT Qt 5.12.8 related; but graphic issue.

`dmesg` contains

[ 94.140720] Hardware name: Hewlett-Packard HP Compaq dc7700 Small Form Factor/0A54h, BIOS 786E1 v01.05 08/30/2006
[ 94.140724] Workqueue: events nouveau_cli_work [nouveau]
[ 94.140848] RIP: 0010:nvif_vmm_put+0x6d/0x80 [nouveau]
[ 94.140937] Code: 00 00 48 8d 55 e0 be 02 00 00 00 48 c7 45 e0 00 00 00 00 48 89 45 e8 e8 01 e4 ff ff 85 c0 75 0a 48 c7 43 08 00 00 00 00 eb b7 <0f> 0b eb f2 e8 1a ca 0c d8 66 2e 0f 1f 84 00 00 00 00 00 66 66 66
[ 94.140941] RSP: 0018:ffffaa308003fd88 EFLAGS: 00010282
[ 94.140945] RAX: 00000000fffffffe RBX: ffffaa308003fdb8 RCX: 0000000000000000
[ 94.140948] RDX: 0000000000000000 RSI: ffffaa308003fcf8 RDI: ffffaa308003fd98
[ 94.140950] RBP: ffffaa308003fda8 R08: 0000000000000000 R09: 0000000000000000
[ 94.140953] R10: 0000000000000030 R11: 0000000000000000 R12: ffff91118351d840
[ 94.140955] R13: dead000000000100 R14: ffff91118560ccc0 R15: ffff91118ff53708
[ 94.140958] FS: 0000000000000000(0000) GS:ffff9111e6c00000(0000) knlGS:0000000000000000
[ 94.140962] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 94.140965] CR2: 00007f1314002000 CR3: 00000001096ce000 CR4: 00000000000006f0
[ 94.140968] Call Trace:
[ 94.140974] nouveau_vma_del+0x82/0xc0 [nouveau]
[ 94.141096] nouveau_gem_object_delete_work+0x3b/0x60 [nouveau]
[ 94.141218] nouveau_cli_work+0xc5/0x120 [nouveau]
[ 94.141340] process_one_work+0x220/0x3c0
[ 94.141346] worker_thread+0x4d/0x3f0
[ 94.141350] kthread+0x114/0x150
[ 94.141354] ? process_one_work+0x3c0/0x3c0
[ 94.141357] ? kthread_park+0x90/0x90
[ 94.141361] ret_from_fork+0x22/0x30
[ 94.141367] ---[ end trace 6e213dcc8e9e27c3 ]---
[ 96.368259] nouveau 0000:01:00.0: fifo: CACHE_ERROR - ch 4 [Xorg[659]] subc 3 mthd 1b00 data 00000000
[ 96.402399] ------------[ cut here ]------------
[ 96.402405] WARNING: CPU: 1 PID: 659 at drivers/gpu/drm/nouveau/nvif/vmm.c:68 nvif_vmm_put+0x6d/0x80 [nouveau]
[ 96.402557] Modules linked in: nls_iso8859_1 snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation soundwire_cadence snd_hda_codec snd_hda_core snd_hwdep soundwire_bus snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer coretemp hp_wmi input_leds snd serio_raw sparse_keymap kvm_intel kvm soundcore mei_me tpm_infineon mei mac_hid wmi_bmof sch_fq_codel msr parport_pc ppdev lp parport ip_tables x_tables autofs4 nouveau mxm_wmi i2c_algo_bit drm_ttm_helper ttm drm_kms_helper hid_generic syscopyarea sysfillrect sysimgblt fb_sys_fops cec rc_core gpio_ich drm usbhid hid psmouse video e1000e lpc_ich pata_acpi wmi floppy
[ 96.402657] CPU: 1 PID: 659 Comm: Xorg Tainted: G W 5.11.0-27-generic #29~20.04.1-Ubuntu
[ 96.402661] Hardware name: Hewlett-Packard HP Compaq dc7700 Small Form Factor/0A54h, BIOS 786E1 v01.05 08/30/2006
[ 96.40266...

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1941937

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

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[Chris Guiver (guiverc)]

another QA-test install today on same box.

kubuntu wasn't touched in install, but to validate the new install the system was booted & logged int to ensure it was untouched...

Logging in today was flawless; backgrounds on both displays & quick exploration of system (to ensure un-impacted by install on other partition on disk) was flawless...