Public bug reported:
1. as you can see in the error log there is an authorisation issue too.
2. I can not select 4k video with 60hz.
The LG 27ud58-b does support it and the Intel® Iris™ Plus 655 too.
3. When the lg monitor is in HDMI ultra hd deep color mode then the screen
keeps blinking in 4k resolution.
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: xorg 1:7.7+19ubuntu8
ProcVersionSignature: Ubuntu 4.18.0-12.13-generic 4.18.17
Uname: Linux 4.18.0-12-generic x86_64
ApportVersion: 2.20.10-0ubuntu13.1
Architecture: amd64
BootLog: Error: [Errno 13] Toegang geweigerd: '/var/log/boot.log'
CompositorRunning: None
CurrentDesktop: XFCE
Date: Sat Dec 15 19:48:32 2018
DistUpgraded: Fresh install
DistroCodename: cosmic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation Device [8086:3ea5] (rev 01) (prog-if 00 [VGA controller])
Subsystem: Intel Corporation Device [8086:2074]
InstallationDate: Installed on 2018-12-13 (2 days ago)
InstallationMedia: Xubuntu 18.10 "Cosmic Cuttlefish" - Release amd64
(20181017.2)
MachineType: Intel(R) Client Systems NUC8i5BEH
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-12-generic
root=UUID=82e03d14-dda1-416d-910c-6bb973e28ff6 ro quiet splash vt.handoff=1
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/15/2018
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BECFL357.86A.0051.2018.1015.1513
dmi.board.name: NUC8BEB
dmi.board.vendor: Intel Corporation
dmi.board.version: J72692-303
dmi.chassis.type: 3
dmi.chassis.vendor: Intel Corporation
dmi.chassis.version: 2.0
dmi.modalias:
dmi:bvnIntelCorp.:bvrBECFL357.86A.0051.2018.1015.1513:bd10/15/2018:svnIntel(R)ClientSystems:pnNUC8i5BEH:pvrJ72747-302:rvnIntelCorporation:rnNUC8BEB:rvrJ72692-303:cvnIntelCorporation:ct3:cvr2.0:
dmi.product.family: Intel NUC
dmi.product.name: NUC8i5BEH
dmi.product.sku: BOXNUC8i5BEH
dmi.product.version: J72747-302
dmi.sys.vendor: Intel(R) Client Systems
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.95-1
version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.2-0ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.1-3ubuntu2.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20171229-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-3
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug cosmic ubuntu
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https://bugs.launchpad.net/bugs/1808653
Title:
xorg? 4k only at 30hzIntel® Iris™ Plus 655
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