Thank you for reporting this bug to Ubuntu. Ubuntu 16.04 (xenial) reached end of standard support in April 2021:
https://wiki.ubuntu.com/Releases If you would like to continue with free support then please update to a newer Ubuntu version and tell us if the problem still occurs. If you would like to continue with Ubuntu 16.04 then there is a paid support option detailed at https://www.ubuntu.com/esm ** Changed in: xorg (Ubuntu) Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1570653 Title: LG 31MU97-B Black 31" 4K Monitor not detected properly Status in xorg package in Ubuntu: Won't Fix 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/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: XFCE DistUpgraded: 2016-04-14 20:11:08,467 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: xenial DistroRelease: Ubuntu 16.04 DistroVariant: ubuntu ExtraDebuggingInterest: Yes 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-application main process (2191) killed by TERM signal Invalid MIT-MAGIC-COOKIE-1 key LightdmGreeterLogOld: ** Message: Starting lightdm-gtk-greeter 2.0.1 (Aug 7 2015, 01:24:18) ** Message: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf.d/01_ubuntu.conf ** Message: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf.d/30_xubuntu.conf ** Message: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf upstart: indicator-application main process (1802) killed by TERM signal MachineType: To be filled by O.E.M. To be filled by O.E.M. Package: xorg 1:7.7+13ubuntu3 PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-22-lowlatency root=/dev/mapper/xubuntu--vg-root ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.4.0-22.40-lowlatency 4.4.8 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.asset.tag: To be filled by O.E.M. dmi.board.name: SABERTOOTH 990FX R2.0 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2501:bd04/08/2014:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnSABERTOOTH990FXR2.0:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. 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 2.4.67-1ubuntu0.16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1570653/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
