Public bug reported:
This system has a 4k laptop screen with resolution 3840x2160, and an
external HP monitor connected via HDMI, resolution 1920x1200. Windows,
fonts etc are not scaled properly on the external monitor (too large,
etc), and the only workaround I've found with earlier versions and other
distros is to set the laptop display to 1920x1080 mode, so that's what
I'm trying here as well.
However, when doing that, the X (wayland, not sure if the package is
correct here) session crashes and brings me back to login screen.
So to summarize: connect the external monitor, go to Settings > Devices
> Displays, click primary built in display, observe that it shows
Resolution 3840x2160 (16:9) and Scale 200%, change resolution to
1920x1080 (16:9), click Apply --> crash.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: xorg 1:7.7+19ubuntu2
ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
Uname: Linux 4.13.0-12-generic x86_64
ApportVersion: 2.20.7-0ubuntu2
Architecture: amd64
BootLog:
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Oct 11 07:49:08 2017
DistUpgraded: Fresh install
DistroCodename: artful
DistroVariant: ubuntu
EcryptfsInUse: Yes
GraphicsCard:
Intel Corporation HD Graphics 620 [8086:5916] (rev 02) (prog-if 00 [VGA
controller])
Subsystem: Lenovo HD Graphics 620 [17aa:2248]
Subsystem: Lenovo GM108M [GeForce 940MX] [17aa:2248]
InstallationDate: Installed on 2017-10-10 (0 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Beta amd64 (20171008)
MachineType: LENOVO 20H9004MMX
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-12-generic.efi.signed
root=UUID=182b5236-fa96-4fb5-bea9-f90769b65f3c ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg crash
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/06/2017
dmi.bios.vendor: LENOVO
dmi.bios.version: N1VET35W (1.25 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20H9004MMX
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN1VET35W(1.25):bd09/06/2017:svnLENOVO:pn20H9004MMX:pvrThinkPadT570:rvnLENOVO:rn20H9004MMX:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad T570
dmi.product.name: 20H9004MMX
dmi.product.version: ThinkPad T570
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.83-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.2-0ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.2-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.3-1ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20170309-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug artful crash ubuntu wayland-session
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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1722708
Title:
Crash when setting laptop display resolution
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https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1722708/+subscriptions
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