Hi Christopher. Answering your questions in turn:
1) All I can say for the moment is that it was OK in Ubuntu 17.10 and not OK in 18.04. 2) The monitor is actually a Samsung television, model no. UE40EH5000. However, I want to be clear that the issue is with the screen in the laptop itself, not anything external. The issue occurs whether or not an external monitor (television) is connected. 3) Straight HDMI cable. To be clear, the behavior as I see it is exactly as bug 1300349. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1777257 Title: Dell Inspiron 17r 5737 Ubuntu 18.04 Video Looks Very Strange Status in linux package in Ubuntu: Incomplete Bug description: When booting 18.04 on my Dell 5737 built-in screen the colours are incorrect and the display looks to be of low resolution. This is true whether booting from a fresh distribution copy on a memory stick or the subsequent patched install. A screenshot: https://launchpadlibrarian.net/374791190/2018-06-16%2016.46.54.jpg The image on an external monitor appears unaffected. WORKAROUND: Use kernel parameter: nomodeset --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: merlin 1635 F.... pulseaudio /dev/snd/controlC1: merlin 1635 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-04-28 (52 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: Dell Inc. Inspiron 5737 Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_GB.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-23-generic root=UUID=649ad923-d0b7-420a-a0e8-c5753dea246c ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-23-generic N/A linux-backports-modules-4.15.0-23-generic N/A linux-firmware 1.173.1 Tags: bionic Uname: Linux 4.15.0-23-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/25/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: A09 dmi.board.name: 0V3MXK dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: A09 dmi.modalias: dmi:bvnDellInc.:bvrA09:bd08/25/2016:svnDellInc.:pnInspiron5737:pvrA09:rvnDellInc.:rn0V3MXK:rvrA00:cvnDellInc.:ct8:cvrA09: dmi.product.family: 00 dmi.product.name: Inspiron 5737 dmi.product.version: A09 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1777257/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
