Public bug reported:

- Machine: Dell 15 Inspiron Gaming Laptop (7567)
- External 1080p60 monitor connected (recognized by X as 1080i60). Changing 
resolution manually fixes the resolution until next reboot.

When external monitor is already connected before boot, and turning
system on, X calculates wrong resolution/dpi for the monitors, rendering
fonts very small. On default Gnome3 desktop, only the window titles are
affected. On Kubuntu, all SDDM items and several desktop resources are
affected too, rendering Kubuntu desktop unusable.

Running gome-tricks applet restore font size when clicking on "Fonts" and 
changing font sizes.
On Kubuntu, changing font settings does not have any effect. One can run on a 
root terminal "xrandr --dpi 96" as a workaround. But it solves only for the 
next window opening of a program.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73
Uname: Linux 5.4.0-58-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.capabilities.gpu0: Error: [Errno 21] É um diretório: 
'/proc/driver/nvidia/capabilities/gpu0'
.proc.driver.nvidia.capabilities.mig: Error: [Errno 21] É um diretório: 
'/proc/driver/nvidia/capabilities/mig'
.proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] É um diretório: 
'/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 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)
.tmp.unity_support_test.0:
 
ApportVersion: 2.20.11-0ubuntu27.14
Architecture: amd64
BootLog:
 
CasperMD5CheckResult: skip
CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Thu Dec 24 11:50:44 2020
DistUpgraded: 2020-08-23 11:50:00,001 DEBUG icon theme changed, re-reading
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-xenial-amd64-20160624-2
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus:
 nvidia, 450.80.02, 5.4.0-48-generic, x86_64: installed
 nvidia, 450.80.02, 5.4.0-56-generic, x86_64: installed
 nvidia, 450.80.02, 5.4.0-58-generic, x86_64: installed
ExtraDebuggingInterest: I just need to know a workaround
GraphicsCard:
 Intel Corporation HD Graphics 630 [8086:591b] (rev 04) (prog-if 00 [VGA 
controller])
   Subsystem: Dell HD Graphics 630 [1028:0798]
 NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile] [10de:1c8c] (rev a1) 
(prog-if 00 [VGA controller])
   Subsystem: Dell GP107M [GeForce GTX 1050 Ti Mobile] [1028:0798]
InstallationDate: Installed on 2020-03-22 (277 days ago)
InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 
20160624-10:47
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 0cf3:e007 Qualcomm Atheros Communications 
 Bus 001 Device 002: ID 046d:c534 Logitech, Inc. Unifying Receiver
 Bus 001 Device 004: ID 0c45:6a06 Microdia Integrated_Webcam_HD
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. Inspiron 15 7000 Gaming
ProcEnviron:
 LANGUAGE=pt_BR:
 PATH=(custom, no user)
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-58-generic 
root=UUID=0a93686d-0008-4b58-8574-fe382bc8eda1 ro locale=pt_BR quiet splash 
intel_iommu=on vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to focal on 2020-08-23 (123 days ago)
dmi.bios.date: 06/19/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.12.1
dmi.board.name: 0P84C9
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.asset.tag: H70NVN2
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvr1.12.1:bd06/19/2020:svnDellInc.:pnInspiron157000Gaming:pvr:rvnDellInc.:rn0P84C9:rvrA01:cvnDellInc.:ct10:cvr:
dmi.product.family: Inspiron
dmi.product.name: Inspiron 15 7000 Gaming
dmi.product.sku: 0798
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.14.1+20.04.20200211-0ubuntu1
version.libdrm2: libdrm2 2.4.101-2
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.8-0ubuntu1~20.04.1
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.6
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+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal ubuntu

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https://bugs.launchpad.net/bugs/1909241

Title:
  Unreadable text with two monitors

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