J'ai instalé ubuntu 14.04.1 sur mon portable avec dual boot...

voici les photo que sa me fait quand je rouvre et je vais sur mon utilisateur
https://imgur.com/a/mCler

j'aimerais que vous me disiez c'est quoi mon problème il se trouve que à chaque fois que je me fait mon mot de passe pour me connecter à mon bureau ubuntu 14.04.1 je ne peux pas accéder aux aplication il y a juste un fonds d'écrans et je peux rien faire s.v.p donner moi de l'aide je veux que ubuntu 14.04.1 parce je commence avec ce système d'exploitation merci.

Voici ma config si sa peut vous aidez !

Windows 8.1 ‎(X64)‎
System install date: 5/27/2016
Processor
Intel Core i3 clocked at 1.70 GHz
Processor frequency measure (core0): 1.70 GHz
Number of cores: 2 physical, 4 logical
Processor socket: Socket 1168 BGA
CPU Temperature (core 0): 49 °C
Motherboard
TOSHIBA ZSWAA 1.00
Serial number (motherboard): *
SKU Number: PSCLUC
Bios version: 1.40
Date: 11/27/2014
Chipset
Northbridge : Intel Haswell-ULT
Revision ID: 0B
Southbridge : Intel H8x/P8x
Revision ID: C1
Memory
6 GB total memory type DDR3 to 797.85 MHz
Memory timing: 11.0 clocks-11 clocks-11 clocks-28 clocks-1 TT
Memory chip Samsung of 4 GB
Maximum frequency: 800 MHz
Max bandwidth: PC3-12800
Memory chip Samsung of 2 GB
Maximum frequency: 800 MHz
Max bandwidth: PC3-12800
Graphics card
Intel(R) HD Graphics Family
DirectX version installed: 11.0
Core clock: 500 MHz
Harddrive
SSD KINGSTONSV300S37A120G of 111.79 GB SATA III
Firmware: 608ABBF0
SATA version: SATA Rev 2.6
Serial number: 50026B775B02B717
HDD Temperature: 31 °C
Power time: 2473 hours
Harddrive TOSHIBAMQ01ABD075 of 698.64 GB SATA II
Firmware: AX0A4M
SATA version: SATA Rev 2.6
Serial number: 54PTCADOT
HDD Temperature: 31 °C
Power time: 8570 hours
Network
Realtek PCIe FE Family Controller
Adapter type: ethernet
Bluetooth Device (Personal Area Network)
Adapter type: ethernet
Anchorfree HSS VPN Adapter
Adapter type: ethernet
TAP-Windows Adapter V9
Adapter type: ethernet
Microsoft Wi-Fi Direct Virtual Adapter
Adapter type: IEEE 802.11 wireless
Qualcomm Atheros AR956x Wireless Network Adapter
Adapter type: IEEE 802.11 wireless
LogMeIn Hamachi Virtual Ethernet Adapter
Adapter type: ethernet
VMware Virtual Ethernet Adapter for VMnet1
Adapter type: ethernet
VMware Virtual Ethernet Adapter for VMnet8
Adapter type: ethernet
Software Loopback Interface 1
Adapter type: Loopback
Multimedia cards
Intel Corporation 8 Series HD Audio Controller
Keyboard
PC/AT Enhanced PS/2 Keyboard (101/102-Key)
Mouse
Pixart Imaging, Inc. Optical Mouse (USB OPTICAL MOUSE)
Synaptics PS/2 Port TouchPad
Screen(s)
Generic PnP Monitor
Manufacturer: SAMSUNG
Maximum resolution: 1366 x 768
Screen size: 15.3" (34 cm x 19 cm)
Manufacture date: 12/31/2011
Aspect ratio: 16:9
Video input type: Digital Signal
USB peripheral
Pixart Imaging, Inc. Optical Mouse (USB OPTICAL MOUSE)
Supported USB version: 1.10
Turtle Beach Turtle Beach PX22
Supported USB version: 2.0
Toshiba Corp. Qualcomm Atheros AR3012 Bluetooth 4.0
Supported USB version: 1.10
Chicony Electronics Co., Ltd
Supported USB version: 2.0

Cordialement ! merci.