Public bug reported:
I'm on Dell XPS 13 2015 edition, since about two weeks, my second
monitor connected via Mini Display Port doesn't work well ; ie the
screen led report it as "on", the "Settings -> Display" tools detect it
successfully, screen is extended, BUT screen stay black.
Sometimes, while I'm working (with the black screen on the second
monitor), the second monitor woke up. I can use it, but after automatic
"screen turn off" (while I'm away), the second screen doesn't woke up.
If I disconnect-reconnect, the mini display port, nothing happens, and
Xorg.0.log doesn't detect something (this is why I've opened the bug on
"linux-image-generic" and not on "Xorg").
I would be happy to find my second display working again, and help to fix the
problem.
Please, let me know how I can help, report, test, etc...
$ cat /proc/version_signature
Ubuntu 3.19.0-26.27-generic 3.19.8-ckt4
$ lsb_release -rd
Description: Ubuntu 15.04
Release: 15.04
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-image-3.19.0-26-generic 3.19.0-26.27
ProcVersionSignature: Ubuntu 3.19.0-26.27-generic 3.19.8-ckt4
Uname: Linux 3.19.0-26-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.17.2-0ubuntu1.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: kumy 1513 F.... pulseaudio
/dev/snd/controlC1: kumy 1513 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Aug 3 15:20:29 2015
HibernationDevice: RESUME=UUID=8a16d494-b05c-4d52-a204-b648a935d547
InstallationDate: Installed on 2015-05-07 (88 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: Dell Inc. XPS 13 9343
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-26-generic.efi.signed
root=UUID=58a8d291-24fa-4b38-8c10-65f03c728711 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.19.0-26-generic N/A
linux-backports-modules-3.19.0-26-generic N/A
linux-firmware 1.143.2
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/14/2015
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0310JH
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA05:bd07/14/2015:svnDellInc.:pnXPS139343:pvr:rvnDellInc.:rn0310JH:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: XPS 13 9343
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug package-from-proposed vivid
** Attachment added: "lspci-vnvn.log"
https://bugs.launchpad.net/bugs/1480920/+attachment/4438275/+files/lspci-vnvn.log
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https://bugs.launchpad.net/bugs/1480920
Title:
Black screen on monitor connected via Mini Display Port
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