I updated my Dell Precision 5540 firmware today with sudo fwupdmgr update.

The update was to and it fetched from fwupd.org

The laptop uses a hybrid graphics setup and has an Nvidia quadro T2000 that is not enabled.

I noticed that now in certain 3rd party applications such as signal, typora, slack etc. I now have incredibly bad screen tearing and also strange horizontal lines on the dropdowns.

screen torn example

I do not think issue is not related to my Nvidia graphics driver but rather the integrated Intel graphics.

Below is some info I think could help:

lspci -nn | egrep -i "3d|display|vga"

00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:3e9b] (rev 02) 01:00.0 3D controller [0302]: NVIDIA Corporation Device [10de:1fb8] (rev a1)

inxi -G

Graphics: Card-1: Intel Device 3e9b Card-2: NVIDIA Device 1fb8 Display Server: x11 (X.Org 1.19.6 ) driver: intel Resolution: 3840x2160@60.00hz OpenGL: renderer: Mesa DRI Intel UHD Graphics 630 (Coffeelake 3x8 GT2) version: 4.5 Mesa 19.2.8

contents of my grub file

GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`

  • Check your UEFI settings. Often update resets many settings to defaults. You may have a setting on which video is used that needs to be changed, also. To see if nVidia installed into your kernel. dkms status – oldfred Apr 9 at 18:53

I tried several fixes to this...

  • upgrading mesa
  • adding sudo add-apt-repository ppa:oibaf/graphics-drivers
  • trying to disable built-in graphics in UEFI (not possible on my model)
  • purged intel and nividia drivers and started over
  • installing nVidia drivers manually both open source and proprietary
  • tried bumblebee
  • reverted firmware
  • forcing nvidia card on

In the end I did a dist upgrade to 19.10 which fixed the issue. Not ideal leaving LTS but whatever graphic drivers were included fixed my issue.

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