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[HaiyueLin <qq020608@xxxxxxxxx>]

apport information

** Attachment added: "ProcCpuinfo.txt"
   https://bugs.launchpad.net/bugs/1184650/+attachment/3752413/+files/ProcCpuinfo.txt

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https://bugs.launchpad.net/bugs/1184650

Title:
  System boots into a black screen in EFI mode, but desktop loads
  normally in legacy mode

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I have a new pc portable acer v3-771g with Win 8 in EFI mode. I have
  tried Ubuntu 12.04.2 and 13.04.  If I don't use the nomodeset code in
  EFI mode, the system boots into a black screen and to tty1 only (no
  desktop) with nomodeset.

  However, when I change the BIOS to boot in the legacy mode , Raring
  boots to the desktop with the nomodeset parameter but not 12.04.2.  I
  have tried also Fedora 18 and Opensuse 12.3 and the problem is the
  same except that Opensuse boots in EFI mode with the nomodeset
  parameter. So I use just Win 8 and Opensuse 12.3 now in EFI mode , but
  I like very will Ubuntu. How can you help me to install it in the EFI
  mode??

  
  Motherboard:
        CPU Type                                          Mobile DualCore Intel Core i5-3230M, 2700 MHz (27 x 100)
        Motherboard Name                                  Acer Aspire V3-771
        Motherboard Chipset                               Intel Panther Point HM77, Intel Ivy Bridge
        System Memory                                     3914 MB  (DDR3-1600 DDR3 SDRAM)
        DIMM1: SK Hynix HMT451S6MFR8C-PB                  4 GB DDR3-1600 DDR3 SDRAM  (11-11-11-28 @ 800 MHz)  (10-10-10-27 @ 761 MHz)  (9-9-9-24 @ 685 MHz)  (8-8-8-22 @ 609 MHz)  (7-7-7-19 @ 533 MHz)  (6-6-6-16 @ 457 MHz)  (5-5-5-14 @ 380 MHz)
        BIOS Type                                         Unknown


      DMI:
        DMI BIOS Vendor
        DMI BIOS Version
        DMI System Manufacturer                           Acer
        DMI System Product                                Aspire V3-771
        DMI System Version                                V2.13
        DMI System Serial Number                          NXM6PEF006249021A07200
        DMI System UUID                                   000A3BAF-45CC5C81-33D37054-D24B63F2
        DMI Motherboard Manufacturer                      Acer
        DMI Motherboard Product                           VA70_HC
        DMI Motherboard Version                           Type2 - Board Version
        DMI Motherboard Serial Number                     NBM6P1100124705D5D7200
        DMI Chassis Manufacturer                          Chassis Manufacturer
        DMI Chassis Version                               Chassis Version
        DMI Chassis Serial Number                         Chassis Serial Number
        DMI Chassis Asset Tag
        DMI Chassis Type                                  Notebook
        DMI Total / Free Memory Sockets                   4 / 3
  --- 
  ApportVersion: 2.9.2-0ubuntu8.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  sasdsky    1701 F.... pulseaudio
  DistroRelease: Ubuntu 13.04
  HibernationDevice: RESUME=UUID=ed003934-173d-4035-8930-e8009a1f6fc8
  InstallationDate: Installed on 2013-06-03 (55 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Acer Aspire V3-771
  MarkForUpload: True
  Package: linux (not installed)
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-26-generic root=UUID=755018a9-6de4-46fa-aa8c-c0004515c089 ro nomodeset locale=zh_CN quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.8.0-26.38-generic 3.8.13.2
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-26-generic N/A
   linux-backports-modules-3.8.0-26-generic  N/A
   linux-firmware                            1.106
  Tags:  raring
  Uname: Linux 3.8.0-26-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  WifiSyslog:
   
  dmi.bios.date: 11/13/2012
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V2.13
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: VA70_HC
  dmi.board.vendor: Acer
  dmi.board.version: Type2 - Board Version
  dmi.chassis.type: 10
  dmi.chassis.vendor: Chassis Manufacturer
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnInsydeCorp.:bvrV2.13:bd11/13/2012:svnAcer:pnAspireV3-771:pvrV2.13:rvnAcer:rnVA70_HC:rvrType2-BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
  dmi.product.name: Aspire V3-771
  dmi.product.version: V2.13
  dmi.sys.vendor: Acer

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