두 번째 모니터 구성

두 번째 모니터를 연결하려고 하는 새 데비안 컴퓨터가 있습니다. HDMI 포트에 연결하면 두 번째 모니터가 첫 번째 모니터와 중복되어 확장하고 싶어요.

내 컴퓨터는 Dell Inspiron 15 7537(http://www.dell.com/uk/p/inspiron-15-7537/pd).

몇 가지 세부 정보를 제공하기 위해 출력은 다음 uname -a과 같습니다.

Linux marcoshstudio 3.16-0.bpo.3-amd64 #1 SMP Debian 3.16.5-1~bpo70+1 (2014-11-02) x86_64 GNU/Linux

의 출력은 lspci -nn다음과 같습니다

00:00.0 Host bridge [0600]: Intel Corporation Haswell-ULT DRAM Controller [8086:0a04] (rev 0b)
00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b)
00:03.0 Audio device [0403]: Intel Corporation Device [8086:0a0c] (rev 0b)
00:14.0 USB controller [0c03]: Intel Corporation Lynx Point-LP USB xHCI HC [8086:9c31] (rev 04)
00:16.0 Communication controller [0780]: Intel Corporation Lynx Point-LP HECI #0 [8086:9c3a] (rev 04)
00:1b.0 Audio device [0403]: Intel Corporation Lynx Point-LP HD Audio Controller [8086:9c20] (rev 04)
00:1c.0 PCI bridge [0604]: Intel Corporation Lynx Point-LP PCI Express Root Port 1 [8086:9c10] (rev e4)
00:1c.2 PCI bridge [0604]: Intel Corporation Lynx Point-LP PCI Express Root Port 3 [8086:9c14] (rev e4)
00:1c.3 PCI bridge [0604]: Intel Corporation Lynx Point-LP PCI Express Root Port 4 [8086:9c16] (rev e4)
00:1c.4 PCI bridge [0604]: Intel Corporation Lynx Point-LP PCI Express Root Port 5 [8086:9c18] (rev e4)
00:1d.0 USB controller [0c03]: Intel Corporation Lynx Point-LP USB EHCI #1 [8086:9c26] (rev 04)
00:1f.0 ISA bridge [0601]: Intel Corporation Lynx Point-LP LPC Controller [8086:9c43] (rev 04)
00:1f.2 SATA controller [0106]: Intel Corporation Lynx Point-LP SATA Controller 1 [AHCI mode] [8086:9c03] (rev 04)
00:1f.3 SMBus [0c05]: Intel Corporation Lynx Point-LP SMBus Controller [8086:9c22] (rev 04)
02:00.0 Network controller [0280]: Intel Corporation Device [8086:08b1] (rev 73)
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device [10ec:5287] (rev 01)
03:00.1 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 12)
04:00.0 3D controller [0302]: NVIDIA Corporation Device [10de:0fe4] (rev a1)

xrandr -q두 번째 모니터를 연결한 후 출력은 다음과 같습니다.

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 0mm x 0mm
    1920x1080       0.0*

의 출력은 lshw -c video다음과 같습니다

*-display               
   description: VGA compatible controller
   product: Haswell-ULT Integrated Graphics Controller
   vendor: Intel Corporation
   physical id: 2
   bus info: pci@0000:00:02.0
   version: 0b
   width: 64 bits
   clock: 33MHz
   capabilities: msi pm vga_controller bus_master cap_list rom
   configuration: driver=i915 latency=0
   resources: irq:62 memory:e3000000-e33fffff memory:c0000000-cfffffff ioport:5000(size=64)
*-display
   description: 3D controller
   product: NVIDIA Corporation
   vendor: NVIDIA Corporation
   physical id: 0
   bus info: pci@0000:04:00.0
   version: a1
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress bus_master cap_list
   configuration: driver=nouveau latency=0
   resources: irq:65 memory:e2000000-e2ffffff memory:d0000000-dfffffff memory:e0000000-e1ffffff ioport:3000(size=128)

시도했지만 nvidia-detect출력은

No NVIDIA GPU detected.

두 개의 화면을 사용하는 방법에 대한 팁이나 제안 사항이 있습니까?