[Bug 1872001] Re: 5.3.0-46-generic - i915 - frequent GPU hangs / resets rcs0

Same story here on Ubuntu 20.10.
Kernel version 5.8.0-25-generic on Dell XPS 15 9570, with Intel UHD Graphics 630 (Mobile).

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https://bugs.launchpad.net/bugs/1872001

Title:
5.3.0-46-generic - i915 - frequent GPU hangs / resets rcs0

Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Eoan:
Fix Released

Bug description:
Hi,

Since update to HWE kernel 5.3.0-46-generic I am experiencing frequent
(every couple of minutes) GPU hangs and reset manifesting as 2-3
seconds freezes of the GUI (other than the mouse pointer).

No particular triggers identified although have Chrome / Chromium
running with Hardware Acceleration enabled does appear to increase the
frequency.

I have seen incidences of these hangs in jounralctl output using
previous kernels in the 5.3.0-xx series but they were very infrequent
(one or twice in a week of daily usage)

System Info
steve@steve-Inspiron-5580:~$ inxi -SCGxxxz
System: Host: steve-Inspiron-5580 Kernel: 5.3.0-46-generic x86_64 bits: 64 compiler: gcc v: 7.5.0
           Desktop: Cinnamon 4.4.8 wm: muffin 4.4.2 dm: LightDM 1.26.0 Distro: Linux Mint 19.3 Tricia
           base: Ubuntu 18.04 bionic
CPU: Topology: Quad Core model: Intel Core i5-8265U bits: 64 type: MT MCP arch: Kaby Lake rev: B
           L2 cache: 6144 KiB
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 28800
           Speed: 1173 MHz min/max: 400/3900 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 4: 800 5: 800 6: 800 7: 800
           8: 800
Graphics: Device-1: Intel vendor: Dell driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:3ea0
           Display: x11 server: X.Org 1.20.5 driver: modesetting unloaded: fbdev,vesa resolution: 1920x1080~60Hz
           OpenGL: renderer: Mesa DRI Intel UHD Graphics (Whiskey Lake 3x8 GT2) v: 4.5 Mesa 19.2.8 compat-v: 3.0
           direct render: Yes

steve@steve-Inspiron-5580:~$ journalctl -b | grep i915
Apr 10 06:15:17 steve-Inspiron-5580 kernel: i915 0000:00:02.0: vgaarb: deactivate vga console
Apr 10 06:15:17 steve-Inspiron-5580 kernel: i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
Apr 10 06:15:17 steve-Inspiron-5580 kernel: [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
Apr 10 06:15:17 steve-Inspiron-5580 kernel: [drm] Initialized i915 1.6.0 20190619 for 0000:00:02.0 on minor 0
Apr 10 06:15:17 steve-Inspiron-5580 kernel: fbcon: i915drmfb (fb0) is primary device
Apr 10 06:15:17 steve-Inspiron-5580 kernel: i915 0000:00:02.0: fb0: i915drmfb frame buffer device
Apr 10 06:15:17 steve-Inspiron-5580 kernel: snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
Apr 10 06:16:28 steve-Inspiron-5580 kernel: i915 0000:00:02.0: GPU HANG: ecode 9:0:0x00000000, hang on rcs0
Apr 10 06:16:28 steve-Inspiron-5580 kernel: i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
Apr 10 06:31:46 steve-Inspiron-5580 kernel: i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
Apr 10 06:37:48 steve-Inspiron-5580 kernel: i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
Apr 10 06:40:46 steve-Inspiron-5580 kernel: i915 0000:00:02.0: Resetting rcs0 for hang on rcs0

I note another user has reported similar issues on the same kernel at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861395/comments/52
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.14
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: steve 3920 F.... pulseaudio
 /dev/snd/pcmC0D0p: steve 3920 F...m pulseaudio
CurrentDesktop: X-Cinnamon
DistroRelease: Linux Mint 19.3
HibernationDevice: RESUME=none
InstallationDate: Installed on 2019-12-27 (104 days ago)
InstallationMedia: Linux Mint 19.3 "Tricia" - Release amd64 20191213
MachineType: Dell Inc. Inspiron 5580
Package: linux (not installed)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-46-generic root=UUID=b0eaa5bb-0276-42d4-938f-ee6ce1627906 ro usb_storage.quirks=0bc2:2320: quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 5.3.0-46.38~18.04.1-generic 5.3.18
RelatedPackageVersions:
 linux-restricted-modules-5.3.0-46-generic N/A
 linux-backports-modules-5.3.0-46-generic N/A
 linux-firmware 1.173.17
Tags: tricia
Uname: Linux 5.3.0-46-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip input lpadmin plugdev sambashare sudo vboxusers
_MarkForUpload: True
dmi.bios.date: 07/02/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.4.0
dmi.board.name: 0K0DFT
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.4.0:bd07/02/2019:svnDellInc.:pnInspiron5580:pvr:rvnDellInc.:rn0K0DFT:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: Inspiron
dmi.product.name: Inspiron 5580
dmi.product.sku: 089D
dmi.sys.vendor: Dell Inc.

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