[ubuntu] Setting highest resolution of 1920×1080 in my HDTV does not fill screen in 18.04 LTS

[ubuntu] Setting highest resolution of 1920×1080 in my HDTV does not fill screen in 18.04 LTS

   
I have a *Ubuntu 18.04 LTS* desktop with *Intel integrated graphics (Ivybridge)* which I have connected to my Android TV using a VGA to HDMI adaptor (VGA from desktop to HDMI in TV). Ubuntu is unable to detect the highest resolution (1920×1080) automatically and these are the default modes listed by xrandr.

Code:

$ xrandr -q
Screen 0: minimum 8 x 8, current 1024 x 768, maximum 32767 x 32767
VGA1 connected primary 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
  1024x768      60.00*
  800x600      60.32    56.25 
  848x480      60.00 
  640x480      59.94 
VIRTUAL1 disconnected (normal left inverted right x axis y axis)


I have used *xrandr* to add the 1920×1080 mode and use it following the set of commands below

Code:

xrandr --newmode "1920x1080_60.00"  173.00 1920 2048 2248 2576  1080 1083 1088 1120 -hsync +vsync

xrandr --addmode VGA1 "1920x1080_60.00"

xrandr --output VGA1 --mode "1920x1080_60.00"


The arguments to the newmode are generated using “cvt” utility. While the resolution appears to be okay, the aspect ratio does not seem to be 16:9 and the desktop does not fill the whole display as shown in the link below –
https://gitlab.freedesktop.org/mesa/mesa/-/issues/3350

I have tried changing the refresh rate to the specified values of the TV manufacturer but without any success. I have also tried the different fitting option (Full, Unscaled, Wide, 16:9 etc.) provided in the TV’s picture setting menu, which also doesn’t help. I am a complete novice but I doubt that somehow the physical screen size is not detected properly, however I am not sure about that. I couldn’t find this kind of issue anywhere. I’ll truly appreciate any help in this regard.

Many thanks.

Here are some of the system info:

Code:

$ glxinfo -B
name of display: :1
display: :1  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: VMware, Inc. (0xffffffff)
    Device: llvmpipe (LLVM 10.0.0, 128 bits) (0xffffffff)
    Version: 20.1.4
    Accelerated: no
    Video memory: 3772MB
    Unified memory: no
    Preferred profile: core (0x1)
    Max core profile version: 3.3
    Max compat profile version: 3.1
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.1
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: llvmpipe (LLVM 10.0.0, 128 bits)
OpenGL core profile version string: 3.3 (Core Profile) Mesa 20.1.4 - kisak-mesa PPA
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 3.1 Mesa 20.1.4 - kisak-mesa PPA
OpenGL shading language version string: 1.40
OpenGL context flags: (none)

OpenGL ES profile version string: OpenGL ES 3.1 Mesa 20.1.4 - kisak-mesa PPA
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10


Code:

$ inxi -Gxx
Graphics:  Device-1: Intel Xeon E3-1200 v2/3rd Gen Core processor Graphics driver: i915 v: kernel bus ID: 00:02.0
          chip ID: 8086:0152
          Display: x11 server: X.Org 1.19.6 compositor: gnome-shell driver: intel resolution: 1920x1080~60Hz s-dpi: 96
          OpenGL: renderer: llvmpipe (LLVM 10.0.0 128 bits) v: 3.3 Mesa 20.1.4 - kisak-mesa PPA compat-v: 3.1
          direct render: Yes


Code:

$ sudo lshw -c video
  *-display               
      description: VGA compatible controller
      product: Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
      vendor: Intel Corporation
      physical id: 2
      bus info: [email protected]: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:28 memory:f7800000-f7bfffff memory:e0000000-efffffff ioport:f000(size=64) memory:c0000-dffff


 

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