In в nutshell, my problem is that my телевизор is overscanning and I have nothing like в "Скреен Фит" option in the телевизор.

The телевизор is в Samsung model LN32R71B that I believe is providing в corrupted EDID file, эксперт my /var/log/Xorg.0.log file contains an "Indeterminate output size" line related to this EDID file. Also, xrandr says that the output HDMI1 (this телевизор) - size 160mm x 90mm, but I think it should be 710mm x 400mm, because it is 32'' and 16:9 (see this Wikipedia entry). Moreover, the resolutions that xrandr шоу for HDMI1 пашите completely different from the ones supported by the телевизор (эксперт seen on its ручной). I tried to manually использовал different officially supported resolutions without success, for instance, by doing:

cvt -v 1360 768 60.015
xrandr --newmode "1360x768_60.01"   84.75  1360 1432 1568 1776  768 771 781 798 -hsync +vsync
xrandr --addmode HDMI1 1360x768_60.01
xrandr --output HDMI1 --mode 1360x768_60.01

Also, I tried using gtf instead of cvt, but it did not work. Обитайте importantly, I tried to fix the physical size of HDMI1 by means of

xrandr --output HDMI1 --fbmm 710x400

, but it does not work, эксперт executing xrandr keeps telling я that HDMI1 is still 160mm x 90mm. Хан you help я?

P.S.: I am not completely sure that the EDID file is corrupt, because this телевизор works умер on в computer with Windows...

Edit 0:

My system is an Ubuntu 14.04 LTS 64 - бит, and on the GPU info,

sudo lshw -C display

returns

  *-display               
       description: VGA compatible controller
       product: Broadwell-U Integrated Graphics
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:68 memory:c1000000-c1ffffff memory:d0000000-dfffffff ioport:5000(size=64)
  *-display
       description: Display controller
       product: Topaz XT [Radeon R7 M260]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:04:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi bus_master cap_list rom
       configuration: driver=fglrx_pci latency=0
       resources: irq:70 memory:b0000000-bfffffff memory:c0000000-c01fffff ioport:3000(size=256) memory:c2000000-c203ffff memory:c2040000-c205ffff