After upgrading from 14.04 to 14.10 my screen goes black at random times.
The sound keeps playing so I know it's still running.
The only way I can get the screen back is by pressing the power button, which will show the shutdown selection window and unblackens the screen.
Update: it probably has something to do with the graphics drivers because my screen also flashes black during gaming
My laptop is a Lenovo ideapad z580
Intel Core i7-3520M
integrated graphics
6 gb ram
Ubuntu 14.10 64-bit
---
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/pcmC0D0p: vince 2727 F...m pulseaudio
/dev/snd/controlC0: vince 2727 F.... pulseaudio
/dev/snd/seq: timidity 1561 F.... timidity
DistroRelease: Ubuntu 14.10
HibernationDevice: RESUME=UUID=dc29efba-2e6b-4375-b894-d5a0f60cd103
InstallationDate: Installed on 2014-05-09 (167 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: LENOVO IdeaPad Z580
NonfreeKernelModules: wl
Package: linux (not installed)
ProcEnviron:
LANGUAGE=nl
TERM=xterm
PATH=(custom, no user)
LANG=nl_NL.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-23-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.16.0-23-generic N/A
linux-backports-modules-3.16.0-23-generic N/A
linux-firmware 1.138
Tags: utopic
Uname: Linux 3.16.0-23-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
WifiSyslog:
_MarkForUpload: True
dmi.bios.date: 08/03/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 5FCN35WW
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Lenovo
dmi.board.vendor: LENOVO
dmi.board.version: Lenovo Z580
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Intel Corporation
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnLENOVO:bvr5FCN35WW:bd08/03/2012:svnLENOVO:pnIdeaPadZ580:pvrLenovoZ580:rvnLENOVO:rnLenovo:rvrLenovoZ580:cvnIntelCorporation:ct9:cvr0.1:
dmi.product.name: IdeaPad Z580
dmi.product.version: Lenovo Z580
dmi.sys.vendor: LENOVO
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1384968
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.