I have installed Ubuntu 14.04 on a Acer Aspire One 722. Everything works fine on the laptop by itself. But if I connect the laptop to an external monitor (a HDTV in this instance) via a HDMI cable, the display on the laptop screen and on the external monitor work fine:
1) until I close the screen of the laptop while the laptp is still on, let it go to sleep, and then open the screen and restart. At that point the laptop and external montor screens are black with some garbled characters. There is no way to recover the laptop but shut it down and perform a cold boot.
2) and continue to do so if I use the suspend command (from the drop down menu from the top right corner of the screen). The laptop and the external monitor go dark when the computer suspends. Upon waking both the laptop screen and the external monitor work fine. Needless to say closing the lid after using the suspend command makes no difference.
Any clues on what could be happening when I close the lid of the laptop to suspend the laptop?
Ubuntu information: 64 bit version
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.1 LTS"
viswa@netbook:~$ uname -r
3.11.0-18-generic
---
.tmp.unity.support.test.0:
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
DistUpgraded: 2014-04-22 18:27:56,752 DEBUG enabling apt cron job
DistroCodename: trusty
DistroRelease: Ubuntu 14.04
DistroVariant: ubuntu
EcryptfsInUse: Yes
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Wrestler [Radeon HD 6250] [1002:9804] (prog-if 00 [VGA controller])
Subsystem: Acer Incorporated [ALI] Device [1025:0598]
InstallationDate: Installed on 2013-10-27 (453 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: Acer AO722
NonfreeKernelModules: wl fglrx
Package: unity 7.2.3+14.04.20140826-0ubuntu1
PackageArchitecture: amd64
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-18-generic root=UUID=2eac150f-27b7-4f54-879d-5a176d9b6e87 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-18.32-generic 3.11.10.4
Tags: trusty trusty trusty ubuntu compiz-0.9
Uname: Linux 3.11.0-18-generic x86_64
UpgradeStatus: Upgraded to trusty on 2014-04-22 (276 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 03/25/2011
dmi.bios.vendor: Acer
dmi.bios.version: V1.01
dmi.board.name: AO722
dmi.board.vendor: Acer
dmi.board.version: V1.01
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAcer:bvrV1.01:bd03/25/2011:svnAcer:pnAO722:pvrV1.01:rvnAcer:rnAO722:rvrV1.01:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: AO722
dmi.product.version: V1.01
dmi.sys.vendor: Acer
version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
version.fglrx-installer: fglrx-installer N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1~ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.3
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Sat Jan 24 14:18:48 2015
xserver.configfile: default
xserver.errors:
open /dev/dri/card0: No such file or directory
AIGLX error: failed to open /usr/X11R6/lib64/modules/dri/fglrx_dri.so, error[/usr/X11R6/lib64/modules/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
AIGLX error: failed to open /usr/lib64/dri/fglrx_dri.so, error[/usr/lib64/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
AIGLX error: failed to open /usr/X11R6/lib/modules/dri/fglrx_dri.so, error[/usr/X11R6/lib/modules/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.15.1-0ubuntu2.6
xserver.video_driver: fglrx
Sounds like it may be a video driver bug. Let's start by collecting information on your system. If you would, please open a terminal application and type the command "apport-collect 1414230". This will (hopefully) gather information on your system hardware and software configuration and attach it to this bug for further analysis.