Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xserver-xorg-video-nouveau (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1775347
Title:
Upgrade to 18.04 caused wrong graphics driver to be installed
Status in xserver-xorg-video-nouveau package in Ubuntu:
Confirmed
Bug description:
Upgrading Xubuntu 17.10 to 18.04
Using Nvidia Quadro K4000 Graphics Card with proprietary driver and dual
screens
After the upgrade, which went smoothly, only one screen was recognized
and the system was almost unusable. The Xorg process was running
wild, consuming almost all the CPU. It was difficult to move the
cursor and all screen updates were incredibly slow. I suspected the
graphics driver and saw that the Nvidia driver had been replaced with
the X.Org Nouveau open source driver. I checked the available drivers
with:
7-> ubuntu-drivers devices
== /sys/devices/pci0000:00/0000:00:03.0/0000:04:00.0 ==
modalias : pci:v000010DEd000011FAsv000010DEsd0000097Cbc03sc00i00
vendor : NVIDIA Corporation
model : GK106GL [Quadro K4000]
driver : nvidia-driver-390 - distro non-free recommended
driver : nvidia-340 - distro non-free
driver : xserver-xorg-video-nouveau - distro free builtin
After reinstalling the proprietary driver with the command:
8-> sudo apt install nvidia-driver-390
and rebooting the system, everything was back to normal.
I have had similar driver replacement problems with past upgrades.
Why doesn't the upgrade register and reinstall the proper graphics
driver? And why is the default driver so abysmal with a standard
Nvidia card? This should be fixed in future upgrades.
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