dual monitors not working

[chenhao]

I am using ubuntu 14.04 lts 64bit.
my kernel version is 3.13.0-53-generic #88-Ubuntu SMP Wed May 13 18:10:29 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux.
I have two monitors which are 1440x900 and both have only one vga support.
I video card is NVIDIA Corporation G96 [GeForce 9400 GT] with one hdmi,one dvi and one vga support.
I use one vga(works well) and one dvi (I use a dvi2vga).
First, the two monitors are working well in my windows.
When I was in ubuntu,one resolution is 1440x900 and other one(which use div support) can only choose 1024x768.
I have changed the nvida drivers,there is one driver can ever support 1366x768,but there is no 1440x900.
Through the internet,
I found 'xrandr'.
this can add a 1440x900 mode by munual.
xrandr --newmode '1440x900_60.00' 106.50 1440 1528 1672 1904 900 903 909 934 -hsync +vsync
xrandr --addmode DVI-I-2 1440x900_60.00
xrandr --output DVI-I-2 --mode 1440x900_60.00 --right-of DVI-I-1

It can make both work at 1440x900.
but it was not stable,especially after I locked my screen.
It always crashed or stuck

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
ProcVersionSignature: Ubuntu 3.13.0-53.88-generic 3.13.11-ckt19
Uname: Linux 3.13.0-53-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.14.1-0ubuntu3.10
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,staticswitcher,workarounds,scale,expo,ezoom,dbus]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Fri May 22 20:55:14 2015
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus:
 bbswitch, 0.7, 3.13.0-52-generic, x86_64: installed
 bbswitch, 0.7, 3.13.0-53-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 NVIDIA Corporation G96 [GeForce 9400 GT] [10de:0641] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Device [7377:0000]
InstallationDate: Installed on 2014-12-02 (171 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: Gigabyte Technology Co., Ltd. P31-ES3G
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-53-generic root=UUID=b6a8cf67-e0ca-4b47-8195-6f86c33acbd0 ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-video-ati
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/05/2008
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F2
dmi.board.name: P31-ES3G
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF2:bd08/05/2008:svnGigabyteTechnologyCo.,Ltd.:pnP31-ES3G:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnP31-ES3G:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: P31-ES3G
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz 1:0.9.11.3+14.04.20150313-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.60-2~ubuntu14.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.4
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.7
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 2:2.99.910-0ubuntu1.6
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Fri May 22 20:32:19 2015
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)
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.15.1-0ubuntu2.7
xserver.video_driver: nouveau

[penalvch (penalvch)]

chenhao, as per http://www.gigabyte.com/products/product-page.aspx?pID=2892#bios an update to your computer's buggy and outdated BIOS is available (F6). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?

If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette .

Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report.

Once the BIOS is updated, if the problem is still reproducible, and the information above is provided, then please mark this report Status New. Otherwise, please mark this as Invalid.

Thank you for your understanding.

[Launchpad Janitor (janitor)]

[Expired for xserver-xorg-video-ati (Ubuntu) because there has been no activity for 60 days.]