It appears the problem is most likely this:
[ 989.990] (WW) modeset(0): flip queue failed: Device or resource busy
[ 989.990] (WW) modeset(0): Page flip failed: Device or resource busy
[ 989.990] (EE) modeset(0): present flip failed
[ 990.106] (WW) modeset(0): flip queue failed: Device or resource busy
[ 990.106] (WW) modeset(0): Page flip failed: Device or resource busy
[ 990.106] (EE) modeset(0): present flip failed
[ 990.122] (WW) modeset(0): flip queue failed: Device or resource busy
[ 990.122] (WW) modeset(0): Page flip failed: Device or resource busy
[ 990.122] (EE) modeset(0): present flip failed
[ 990.147] (WW) modeset(0): flip queue failed: Device or resource busy
[ 990.147] (WW) modeset(0): Page flip failed: Device or resource busy
where the Xorg 'modeset' driver is trying to talk to the kernel
'nouveau' driver.
** Package changed: nvidia-graphics-drivers-390 (Ubuntu) => xorg-server
(Ubuntu)
** Changed in: xorg-server (Ubuntu)
Status: Fix Released => New
** Summary changed:
- General Performance Is "slow" including stuttering when dragging windows
around etc (nvidia-390 is installed but modesetting in use)
+ [nouveau] General Performance Is "slow" including stuttering when dragging
windows around etc
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/1809423
Title:
[nouveau] General Performance Is "slow" including stuttering when
dragging windows around etc
Status in xorg-server package in Ubuntu:
New
Bug description:
System information included in debug log.
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: xorg 1:7.7+19ubuntu8
ProcVersionSignature: Ubuntu 4.18.0-13.14-generic 4.18.17
Uname: Linux 4.18.0-13-generic x86_64
ApportVersion: 2.20.10-0ubuntu13.1
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Fri Dec 21 19:43:06 2018
DistUpgraded: Fresh install
DistroCodename: cosmic
DistroVariant: ubuntu
DkmsStatus: nvidia, 390.87, 4.18.0-13-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1) (prog-if 00
[VGA controller])
Subsystem: Gigabyte Technology Co., Ltd GP104 [GeForce GTX 1080]
[1458:3717]
InstallationDate: Installed on 2018-12-21 (0 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64
(20181017.3)
MachineType: System manufacturer System Product Name
ProcEnviron:
LANGUAGE=en_AU:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_AU.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-13-generic
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/27/2017
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3703
dmi.board.asset.tag: Default string
dmi.board.name: Z170-AR
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr3703:bd12/27/2017:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ170-AR:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.95-1
version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.2-0ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.1-3ubuntu2.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20171229-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-3
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