Laptop screen stops working when HDMI screen is connected at boot
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Unity |
New
|
Undecided
|
Unassigned | ||
unity (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
This problem is new with 14.10, did not exist with 14.04
What i do to reproduce:
Turn laptop off
Connect a screen via HDMI
Turn computer on
What happens:
Laptop screen stops working as soon as the OS begins to boot
Once i login, it's clear that the OS thinks that the screen is working, since i can move my mouse into the area of that screen and move it around there. I can drag windows there and if i can grab them afterwards, i can move them back into the visible HDMI screen.
Disconnecting HDMI screen does *not* turn on the Laptop screen
The only way to get laptop screen to work is to boot and login without HDMI and connect it only afterwards.
What i expect to happen:
When booting with two screens, both should work with the settings in place.
ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: unity 7.3.1+14.
ProcVersionSign
Uname: Linux 3.16.0-29-generic x86_64
.tmp.unity.
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CompizPlugins: No value set for `/apps/
CompositorRunning: compiz
CompositorUnred
CompositorUnred
CurrentDesktop: Unity
Date: Tue Dec 23 11:52:55 2014
DistUpgraded: Fresh install
DistroCodename: utopic
DistroVariant: ubuntu
GraphicsCard:
Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device [1043:1477]
Subsystem: ASUSTeK Computer Inc. Device [1043:1477]
InstallationDate: Installed on 2014-12-22 (0 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: ASUSTeK COMPUTER INC. N76VB
ProcKernelCmdLine: BOOT_IMAGE=
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/24/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: N76VB.205
dmi.board.
dmi.board.name: N76VB
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: N76VB
dmi.product.
dmi.sys.vendor: ASUSTeK COMPUTER INC.
version.compiz: compiz 1:0.9.12+
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1
version.
version.
version.
version.
version.
version.
version.
version.
xserver.bootTime: Mon Dec 22 21:31:52 2014
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)
NOUVEAU(G0): [XvMC] Failed to initialize extension.
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 8605
vendor AUO
xserver.version: 2:1.16.0-1ubuntu1.2
summary: |
- Laptop screen stops working when DVI screen is connected at boot + Laptop screen stops working when HDMI screen is connected at boot |
description: | updated |
I have intel 4400 (I think is also 3rd gen) and for me works fine. It seems to be a driver issue