HDMI display failure in Ubuntu 13.10

I've been using an HDMI chord to connect my laptop (samsung R522) to the TV with Windows and it hasn't had problems, but once I tried this with Ubuntu (to which I am now switched completely), I experienced what seems to be a bug:
when the connection happens, only the home screen (and mouse movement) of my pc appears on the TV, no other application or function displays.
I yet found no answers about this on the internet, so I'm assuming this is a new error?
After running sudo lshw -C display, I got:
xaycparty@R522-xayc:~$ sudo lshw -C display
[sudo] password for xaycparty:
description: VGA compatible controller
product: RV730/M96 [Mobility Radeon HD 4650/5165]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:01:00.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:46 memory:d0000000-dfffffff ioport:2000(size=256) memory:cfef0000-cfefffff memory:cfe00000-cfe1ffff

So, by suggestion, I installed an Addition Driver application, but when I opened it, it told me:
no additional drivers are available
no proprietary drivers are in use on this system,

I saw the system download some sort of a package with a bunch of miscellaneous drivers.
Am I supposed to run or configure something specific, or do something else?
This is like my day three with Ubuntu (or any form of Linux for that matter), and I am completely lost and scared.
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  1. Best answer
    it's not a bug, you tv is not being "mirrored" ... it's an extension of you existing laptop screen. I am assuming you laptop screen is still running. the proprietary drivers for your card are legacy... the open source ones are probably better for day to day use. you probably just have to go into you display settings and select the display you want to use, I'm not sure exactly what it says as I am on windows right now, but I have to select what display I want to use when I use linux for htpc or steam big picture mode.
  2. ~sulumordna~
    SUCCESS. I wouldn have figured this out without you. What I had to do is select "mirror display" while the chord was pluged in.
    Thank you for your help!
  3. your welcome
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