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** Changed in: linux (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1866712

Title:
  Graphic glitches with Nvidia 440 on Dell XPS 15 9570

Status in linux package in Ubuntu:
  Confirmed
Status in nvidia-graphics-drivers-440 package in Ubuntu:
  New

Bug description:
  I am experiencing intermittent graphical glitches. I couldn't find
  where this had been reported before so please excuse the duplicate if
  this is a known issue. I tried recording my screen to demonstrate what
  is happening but, although I am seeing the issue on the desktop, it
  does not show up in the video. I am using prime-select in intel mode.

  
  System:    Host: rex Kernel: 5.5.7-050507-generic x86_64 bits: 64 Desktop: 
Gnome 3.35.91 
             Distro: Ubuntu 20.04 LTS (Focal Fossa) 
  Machine:   Type: Laptop System: Dell product: XPS 15 9570 v: N/A serial: 
<root required> 
             Mobo: Dell model: 0D0T05 v: A00 serial: <root required> UEFI: Dell 
v: 1.15.0 date: 12/25/2019 
  CPU:       Topology: 6-Core model: Intel Core i7-8750H bits: 64 type: MT MCP 
L2 cache: 9216 KiB 
             Speed: 2057 MHz min/max: 800/4100 MHz Core speeds (MHz): 1: 2112 
2: 894 3: 1909 4: 2159 5: 2345 6: 1979 
             7: 1579 8: 2316 9: 1214 10: 988 11: 2344 12: 929 
  Graphics:  Device-1: Intel UHD Graphics 630 driver: i915 v: kernel 
             Device-2: NVIDIA GP107M [GeForce GTX 1050 Ti Mobile] driver: N/A 
             Display: x11 server: X.Org 1.20.7 driver: modesetting,nvidia 
unloaded: fbdev,nouveau,vesa 
             resolution: 1920x1080~60Hz 
             OpenGL: renderer: Mesa Intel UHD Graphics 630 (CFL GT2) v: 4.6 
Mesa 20.0.0 
  Audio:     Device-1: Intel Cannon Lake PCH cAVS driver: snd_hda_intel 
             Device-2: Texas Instruments PCM2902 Audio Codec type: USB driver: 
hid-generic,snd-usb-audio,usbhid 
             Sound Server: ALSA v: k5.5.7-050507-generic

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: xorg 1:7.7+19ubuntu14
  Uname: Linux 5.5.7-050507-generic x86_64
  ApportVersion: 2.20.11-0ubuntu18
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Mar  9 13:20:11 2020
  DistUpgraded: Fresh install
  DistroCodename: focal
  DistroVariant: ubuntu
  DkmsStatus:
   nvidia, 440.59, 5.4.0-14-generic, x86_64: installed
   nvidia, 440.59, 5.5.7-050507-generic, x86_64: installed
   v4l2loopback, 0.12.3, 5.5.7-050507-generic, x86_64: installed
   virtualbox, 6.1.4, 5.5.7-050507-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation UHD Graphics 630 (Mobile) [8086:3e9b] (prog-if 00 [VGA 
controller])
     Subsystem: Dell UHD Graphics 630 (Mobile) [1028:087c]
  InstallationDate: Installed on 2020-03-03 (5 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200303)
  MachineType: Dell Inc. XPS 15 9570
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.5.7-050507-generic 
root=UUID=5490caea-406b-4a4c-afee-178210995fe8 ro quiet splash 
mem_sleep_default=deep
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/25/2019
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.15.0
  dmi.board.name: 0D0T05
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 10
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.15.0:bd12/25/2019:svnDellInc.:pnXPS159570:pvr:rvnDellInc.:rn0D0T05:rvrA00:cvnDellInc.:ct10:cvr:
  dmi.product.family: XPS
  dmi.product.name: XPS 15 9570
  dmi.product.sku: 087C
  dmi.sys.vendor: Dell Inc.
  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 20.0.0-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.20.7-2ubuntu2
  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

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