Public bug reported: I use a Philips BDM4037U 40'', 4k monitor. Connecting it via DP to my Lenovo 910 4k gives me random blackouts.
It appears to me that this mostly happens after some time of work, also more likely when the CPU has to handle more than average load, sooner in 30Hz than in 60Hz mode. But it happens for sure after some time, each day. I was unsure if this is a problem with the monitor itself (although when connected via HDMI this isn't an issue). I found similar bug reports for Windows, where it was suggested to update the firmware. My laptop has updated everything - a current BIOS (which dates back to June 2017 or so), updated Windows, latest Ubuntu. The same problem existed in 17.10, with x-org and Wayland sessions. Note, there is another issue with this monitor filed by me, but unrelated AFAIK: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1762986 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-13-generic 4.15.0-13.14 [modified: boot/vmlinuz-4.15.0-13-generic] ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10 Uname: Linux 4.15.0-13-generic x86_64 ApportVersion: 2.20.9-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: thet 1429 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Wed Apr 11 12:07:06 2018 HibernationDevice: RESUME=UUID=bedd1248-32dd-43ca-be9f-28337086ea86 InstallationDate: Installed on 2018-04-09 (1 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Beta amd64 (20180404) MachineType: LENOVO 80VF ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-13-generic.efi.signed root=UUID=998520ff-c841-45ab-8312-2bb876ae2a0b ro quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-13-generic N/A linux-backports-modules-4.15.0-13-generic N/A linux-firmware 1.173 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/31/2017 dmi.bios.vendor: LENOVO dmi.bios.version: 2JCN39WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: Agera dmi.board.vendor: LENOVO dmi.board.version: SDK0J40709 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 31 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo YOGA 910-13IKB dmi.modalias: dmi:bvnLENOVO:bvr2JCN39WW:bd05/31/2017:svnLENOVO:pn80VF:pvrLenovoYOGA910-13IKB:rvnLENOVO:rnAgera:rvrSDK0J40709WIN:cvnLENOVO:ct31:cvrLenovoYOGA910-13IKB: dmi.product.family: IDEAPAD dmi.product.name: 80VF dmi.product.version: Lenovo YOGA 910-13IKB dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic wayland-session -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1762989 Title: Display Port issues - screen blackouts To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1762989/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
