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I have a Dell XPS 17 with a 3,840 x 2,400 screen and an external monitor
with 3840 x 1600 resolution. When I use only one of them it works
totally fine. I use the external monitor without scaling and my notebook
display with fractional scaling of 150%. But when i want to use both at
the same time, my mouse starts to be slow. So in this scenario i have
the external monitor at 100% and the notebook screen at 150%. Everything
works fine expect the mouse which is slow,on both screens. What I found
is, when i set both my screens to 200% while fractional scaling is
enabled. The issue is gone. Same with 100%. But as soon as I start using
fractions, the mouse is slow again. I don't believe it is an power issue
because my hardware is mostly in idle. Also, i tried different mouses
over Bluetooth and USB but no change.
I am currently using 20.10 but had the same issue with 20.04. But when i
use Wayland, the problem is gone.
ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: xorg 1:7.7+19ubuntu15
ProcVersionSignature: Ubuntu 5.8.0-26.27-generic 5.8.14
Uname: Linux 5.8.0-26-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.capabilities.gpu0: Error: [Errno 21] Is a directory:
'/proc/driver/nvidia/capabilities/gpu0'
.proc.driver.nvidia.capabilities.mig: Error: [Errno 21] Is a directory:
'/proc/driver/nvidia/capabilities/mig'
.proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory:
'/proc/driver/nvidia/gpus/0000:01:00.0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.suspend: suspend hibernate resume
.proc.driver.nvidia.suspend_depth: default modeset uvm
.proc.driver.nvidia.version:
NVRM version: NVIDIA UNIX x86_64 Kernel Module 450.80.02 Wed Sep 23 01:13:39
UTC 2020
GCC version: gcc version 10.2.0 (Ubuntu 10.2.0-13ubuntu1)
ApportVersion: 2.20.11-0ubuntu50
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sun Nov 1 14:01:59 2020
DistUpgraded: 2020-10-30 12:11:16,382 ERROR got error from PostInstallScript
./xorg_fix_proprietary.py (g-exec-error-quark: Failed to execute child process
“./xorg_fix_proprietary.py” (No such file or directory) (8))
DistroCodename: groovy
DistroVariant: ubuntu
DkmsStatus:
evdi, 1.7.0, 5.8.0-26-generic, x86_64: installed
nvidia, 450.80.02, 5.8.0-26-generic, x86_64: installed
soundwire, 1.2.2: added
DpkgLog:
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation UHD Graphics [8086:9bc4] (rev 05) (prog-if 00 [VGA
controller])
Subsystem: Dell UHD Graphics [1028:098f]
NVIDIA Corporation TU106M [GeForce RTX 2060 Max-Q] [10de:1f12] (rev a1)
(prog-if 00 [VGA controller])
Subsystem: Dell TU106M [GeForce RTX 2060 Max-Q] [1028:098f]
InstallationDate: Installed on 2020-09-19 (42 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: Dell Inc. XPS 17 9700
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-26-generic
root=UUID=6d098ea0-9d87-46ec-beb0-cc19a3b20841 ro quiet splash
resume=UUID=723b6007-ad35-4e89-be9e-341d54fe18f8 nouveau.modset=0
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to groovy on 2020-10-30 (2 days ago)
dmi.bios.date: 08/18/2020
dmi.bios.release: 1.3
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.3.2
dmi.board.name: 0P1CHN
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.3.2:bd08/18/2020:br1.3:svnDellInc.:pnXPS179700:pvr:rvnDellInc.:rn0P1CHN:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 17 9700
dmi.product.sku: 098F
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.102-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.1-1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200714-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
** Affects: mutter (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug groovy ubuntu xrandr-scaling
--
Mouse slow in fractional scaling
https://bugs.launchpad.net/bugs/1902436
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