LG 31MU97-B Black 31" 4K Monitor not detected properly
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xorg (Ubuntu) |
Won't Fix
|
Medium
|
Unassigned |
Bug Description
4K monitor is not properly detected.
using xfce desktop "Display" utility, my monitor is detected as "Goldstar Company Ltd 27" with a resolution of 3840x2160 and 60.0Hz
The actual monitor is an LG 31MU97-B Black 31" with a resolution of 4096x2160.
I'm pretty sure the Monitor's resolution was properly detected in 15.10 (4096x2160). It was called "Goldstar Company Ltd" but
I do not recall which size was detected. (27" or 31")
I remember seeing a 4K youtube video in 15.10 and noting the black bands on each side of the display, due to the difference between 3840 and 4096.
---
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CompizPlugins: No value set for `/apps/
CompositorRunning: None
CurrentDesktop: XFCE
DistUpgraded: 2016-04-14 20:11:08,467 ERROR got error from PostInstallScript ./xorg_
DistroCodename: xenial
DistroRelease: Ubuntu 16.04
DistroVariant: ubuntu
ExtraDebuggingI
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Curacao PRO [Radeon R7 370 / R9 270/370 OEM] [1002:6811] (prog-if 00 [VGA controller])
Subsystem: PC Partner Limited / Sapphire Technology Curacao PRO [Radeon R7 370 / R9 270/370 OEM] [174b:e271]
InstallationDate: Installed on 2015-11-24 (204 days ago)
InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
LightdmGreeterLog:
upstart: indicator-
Invalid MIT-MAGIC-COOKIE-1 key
LightdmGreeterL
** Message: Starting lightdm-gtk-greeter 2.0.1 (Aug 7 2015, 01:24:18)
** Message: [Configuration] Reading file: /etc/lightdm/
** Message: [Configuration] Reading file: /etc/lightdm/
** Message: [Configuration] Reading file: /etc/lightdm/
upstart: indicator-
MachineType: To be filled by O.E.M. To be filled by O.E.M.
Package: xorg 1:7.7+13ubuntu3
PackageArchitec
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
Tags: xenial ubuntu
Uname: Linux 4.4.0-22-lowlatency x86_64
UpgradeStatus: Upgraded to xenial on 2016-04-15 (62 days ago)
UserGroups: adm audio cdrom dip libvirtd lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 04/08/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2501
dmi.board.
dmi.board.name: SABERTOOTH 990FX R2.0
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: To be filled by O.E.M.
dmi.product.
dmi.sys.vendor: To be filled by O.E.M.
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-
version.
version.
version.
version.
version.
version.
version.
version.
description: | updated |
description: | updated |
Changed in xorg (Ubuntu): | |
status: | Incomplete → Confirmed |
summary: |
- 4K Monitor not detected properly + LG 31MU97-B Black 31" 4K Monitor not detected properly |
Changed in xorg (Ubuntu): | |
status: | Incomplete → Confirmed |
kelargo, thank you for reporting this and helping make Ubuntu better.
Could you please run the following command once from a terminal by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information:
apport-collect -p xorg 1570653
When reporting xorg related bugs in the future, please do so via the above method. You can learn more about this functionality at https:/ /wiki.ubuntu. com/ReportingBu gs.