Plugging HDMI screen in causes system hang
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Medium
|
Timo Aaltonen |
Bug Description
I have a 4K UHD laptop screen and am running Ubuntu Gnome 16.04 Beta1 using 4.4.0-13-generic and the Nouveau drivers.
If I plug in an external HDMI monitor (FHD) either into either HDMI port (there's one on the machine and there's one available via a usb 3.1 extra adaptor) then the whole system hangs, completely unresponsive and needing a hard reboot. Before hanging the 2nd display gets an image as expected, but the laptop's screen flashes randomly, sometimes you see weird artifacts. Then the hang comes.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xserver-xorg 1:7.7+13ubuntu3
ProcVersionSign
Uname: Linux 4.4.0-13-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CompizPlugins: No value set for `/apps/
CompositorRunning: None
CurrentDesktop: GNOME
Date: Fri Mar 18 20:43:42 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
ExtraDebuggingI
GraphicsCard:
Intel Corporation Skylake Integrated Graphics [8086:191b] (rev 06) (prog-if 00 [VGA controller])
Subsystem: Dell Skylake Integrated Graphics [1028:06e4]
Subsystem: Dell GM107M [GeForce GTX 960M] [1028:06e4]
InstallationDate: Installed on 2016-03-15 (3 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160225.1)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp.
Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp.
Bus 001 Device 004: ID 0c45:6713 Microdia
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. XPS 15 9550
ProcKernelCmdLine: BOOT_IMAGE=
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/25/2016
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 01.01.19
dmi.board.name: 0N7TVV
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.
dmi.product.name: XPS 15 9550
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1
version.
version.
version.
version.
version.
version.
version.
version.
xserver.bootTime: Fri Mar 18 17:28:07 2016
xserver.configfile: default
xserver.errors:
Failed to load module "nvidia" (module does not exist, 0)
Failed to load module "nvidia" (module does not exist, 0)
Unknown chipset: NV117
SynPS/2 Synaptics TouchPad: Read error 19
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 5182
vendor SHP
xserver.version: 2:1.18.1-1ubuntu4
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu): | |
assignee: | nobody → Timo Aaltonen (tjaalton) |
tags: | added: cscc |
Note: This only happens when I'm using gdm and gnome shell. I have successfully installed lightdm + unity and it works fine.
So this is a gnome-related bug.
Probably linked? https:/ /bugs.launchpad .net/ubuntu/ +source/ xorg/+bug/ 1559304