change of screen positions causes video issues (nouveau errors in dmesg)

[Chris Guiver]

this is not a new issue having been noticed/report later releases, but I didn't see a filing for bionic

Ubuntu 18.04.6 ISO QA-test on
- hp dc7700 (c2d-e6320, 5gb, nvidia quadro nvs 290)

On adjusting displays to match my setup; dmesg fills with nouveau messages, wallpaper is lost and some windows (esp. confirmation or KEEP the changes) are no longer readable (so screen returns to prior config).

Wallpaper is currently blue, but as I type (in firefox; this bug report), it's changing to no background etc.. as I've documented before. I believe it's HWE kernel related but relates to the really old video card on this box & issues with nouveau.

---
[ 1040.407461] ------------[ cut here ]------------
[ 1040.407497] WARNING: CPU: 0 PID: 5 at /build/linux-hwe-5.4-Vo99CA/linux-hwe-5.4-5.4.0/drivers/gpu/drm/nouveau/nvif/vmm.c:71 nvif_vmm_put+0x6d/0x80 [nouveau]
[ 1040.407498] Modules linked in: gpio_ich coretemp kvm_intel snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio kvm snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core wmi_bmof hp_wmi snd_hwdep sparse_keymap serio_raw snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds snd_seq_device mei_me snd_timer lpc_ich mei snd tpm_infineon soundcore mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 overlay nls_utf8 isofs dm_mirror dm_region_hash dm_log uas usb_storage hid_generic nouveau mxm_wmi video i2c_algo_bit ttm drm_kms_helper psmouse usbhid hid syscopyarea pata_acpi floppy sysfillrect sysimgblt fb_sys_fops drm wmi e1000e
[ 1040.407527] CPU: 0 PID: 5 Comm: kworker/0:0 Tainted: G W 5.4.0-84-generic #94~18.04.1-Ubuntu
[ 1040.407528] Hardware name: Hewlett-Packard HP Compaq dc7700 Small Form Factor/0A54h, BIOS 786E1 v01.05 08/30/2006
[ 1040.407587] Workqueue: events nouveau_cli_work [nouveau]
[ 1040.407623] RIP: 0010:nvif_vmm_put+0x6d/0x80 [nouveau]
[ 1040.407625] Code: f3 b9 10 00 00 00 be 02 00 00 00 48 c7 45 e0 00 00 00 00 48 89 45 e8 e8 b1 e5 ff ff 85 c0 75 0a 48 c7 43 08 00 00 00 00 eb b7 <0f> 0b eb f2 e8 ca e1 ce f5 66 2e 0f 1f 84 00 00 00 00 00 66 66 66
[ 1040.407626] RSP: 0018:ffffb3918003fdb8 EFLAGS: 00010282
[ 1040.407628] RAX: 00000000fffffffe RBX: ffffb3918003fde8 RCX: 0000000000000000
[ 1040.407629] RDX: 0000000000000000 RSI: ffffb3918003fd28 RDI: ffffb3918003fdc8
[ 1040.407631] RBP: ffffb3918003fdd8 R08: 0000000001007000 R09: 0000000000000000
[ 1040.407632] R10: 0000000000000000 R11: fefefefefefefeff R12: ffffb3918003fe20
[ 1040.407634] R13: dead000000000122 R14: dead000000000100 R15: ffff984bf015b2a8
[ 1040.407636] FS: 0000000000000000(0000) GS:ffff984c26a00000(0000) knlGS:0000000000000000
[ 1040.407637] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1040.407639] CR2: 0000075cd1b004b3 CR3: 0000000120d3c000 CR4: 00000000000006f0
[ 1040.407640] Call Trace:
[ 1040.407698] nouveau_vma_del+0x75/0xc0 [nouveau]
[ 1040.407756] nouveau_gem_object_delete_work+0x3a/0x60 [nouveau]
[ 1040.407815] nouveau_cli_work+0x7d/0x110 [nouveau]
[ 1040.407818] process_one_work+0x20f/0x400
[ 1040.407821] worker_thread+0x34/0x410
[ 1040.407823] kthread+0x121/0x140
[ 1040.407825] ? process_one_work+0x400/0x400
[ 1040.407827] ? kthread_park+0x90/0x90
[ 1040.407829] ret_from_fork+0x35/0x40
[ 1040.407832] ---[ end trace 0272449cbce0bed9 ]---
[ 1072.703427] perf: interrupt took too long (4932 > 4925), lowering kernel.perf_event_max_sample_rate to 40500
[ 1095.381499] ------------[ cut here ]------------
[ 1095.381590] WARNING: CPU: 0 PID: 5 at /build/linux-hwe-5.4-Vo99CA/linux-hwe-5.4-5.4.0/drivers/gpu/drm/nouveau/nvif/vmm.c:71 nvif_vmm_put+0x6d/0x80 [nouveau]
[ 1095.381591] Modules linked in: gpio_ich coretemp kvm_intel snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio kvm snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core wmi_bmof hp_wmi snd_hwdep sparse_keymap serio_raw snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds snd_seq_device mei_me snd_timer lpc_ich mei snd tpm_infineon soundcore mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 overlay nls_utf8 isofs dm_mirror dm_region_hash dm_log uas usb_storage hid_generic nouveau mxm_wmi video i2c_algo_bit ttm drm_kms_helper psmouse usbhid hid syscopyarea pata_acpi floppy sysfillrect sysimgblt fb_sys_fops drm wmi e1000e
[ 1095.381628] CPU: 0 PID: 5 Comm: kworker/0:0 Tainted: G W 5.4.0-84-generic #94~18.04.1-Ubuntu
[ 1095.381630] Hardware name: Hewlett-Packard HP Compaq dc7700 Small Form Factor/0A54h, BIOS 786E1 v01.05 08/30/2006
[ 1095.381690] Workqueue: events nouveau_cli_work [nouveau]
[ 1095.381727] RIP: 0010:nvif_vmm_put+0x6d/0x80 [nouveau]
[ 1095.381730] Code: f3 b9 10 00 00 00 be 02 00 00 00 48 c7 45 e0 00 00 00 00 48 89 45 e8 e8 b1 e5 ff ff 85 c0 75 0a 48 c7 43 08 00 00 00 00 eb b7 <0f> 0b eb f2 e8 ca e1 ce f5 66 2e 0f 1f 84 00 00 00 00 00 66 66 66
[ 1095.381732] RSP: 0018:ffffb3918003fdb8 EFLAGS: 00010282
[ 1095.381734] RAX: 00000000fffffffe RBX: ffffb3918003fde8 RCX: 0000000000000000
[ 1095.381735] RDX: 0000000000000000 RSI: ffffb3918003fd28 RDI: ffffb3918003fdc8
[ 1095.381737] RBP: ffffb3918003fdd8 R08: 0000000026050000 R09: 0000000000000000
[ 1095.381738] R10: 0000000000000000 R11: fefefefefefefeff R12: ffffb3918003fe20
[ 1095.381740] R13: dead000000000122 R14: dead000000000100 R15: ffff984be65432a8
[ 1095.381742] FS: 0000000000000000(0000) GS:ffff984c26a00000(0000) knlGS:0000000000000000
[ 1095.381743] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1095.381745] CR2: 00007f3b0d2be000 CR3: 00000000185c8000 CR4: 00000000000006f0
[ 1095.381746] Call Trace:
[ 1095.381808] nouveau_vma_del+0x75/0xc0 [nouveau]
[ 1095.381867] nouveau_gem_object_delete_work+0x3a/0x60 [nouveau]
[ 1095.381927] nouveau_cli_work+0x7d/0x110 [nouveau]
[ 1095.381934] process_one_work+0x20f/0x400
[ 1095.381937] worker_thread+0x34/0x410
[ 1095.381939] kthread+0x121/0x140
[ 1095.381942] ? process_one_work+0x400/0x400
[ 1095.381944] ? kthread_park+0x90/0x90
[ 1095.381948] ret_from_fork+0x35/0x40
[ 1095.381951] ---[ end trace 0272449cbce0beda ]---

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xserver-xorg-video-nouveau-hwe-18.04 1:1.0.16-1~18.04.1
ProcVersionSignature: Ubuntu 5.4.0-84.94~18.04.1-generic 5.4.133
Uname: Linux 5.4.0-84-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.24
Architecture: amd64
CasperVersion: 1.394.3
CurrentDesktop: ubuntu:GNOME
Date: Wed Sep 15 01:52:33 2021
LiveMediaBuild: Ubuntu 18.04.6 LTS "Bionic Beaver" - Release amd64 (20210913.1)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: xserver-xorg-video-nouveau-hwe-18.04
UpgradeStatus: No upgrade log present (probably fresh install)

[Chris Guiver (guiverc)]

Related
- https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1925279 (hirsute)
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1893493 (groovy)
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1930945 (impish)

this box (video card) also has issues with KDE

[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/1943655