Fix overscan in Linux with Intel graphics Vizio HDTV
- by Padenton
I am connecting my server to my HDTV so that I can conveniently display it there. My VIZIO HDTV cuts off all 4 edges. I already realize it is not optimal to be running a GUI on a server; this server will not have much external traffic so I prefer it for convenience.
I have already spent countless hours searching for a fix, but all I could find required an ATI or NVIDIA graphics card, or didn’t work. In Windows, the Intel driver has a setting for underscan, though it seems only to be available by a glitch.
Here’s my specs:
Ubuntu Linux (Quantal 12.10) (Likely to switch to Arch)
This is a home server computer, with KDE for managing(for now, at least)
Graphics: Intel HD Graphics 4000 from Ivy Bridge
Motherboard: ASRock Z77 Extreme4
CPU: Intel Core i5-3450
My monitors:
Dell LCD monitor
Vizio VX37L_HDTV10A 37" on HDMI input
I have tried all of the following from both HDMI?HDMI and DVI?HDMI cables connected to the ports on my motherboard:
Setting properties in xrandr
Making sure drivers are all up to date
Trying several different modes
The TV was “cheap”; max resolution 1080i. I am able to get a 1920x1080 modeline, in both GNU/Linux and Windows, without difficulty. There is no setting in the menu to fix the overscan (I have tried all of them, I realize it’s not always called overscan). I have been in the service menu for the TV, which still does not contain an option to fix it. No aspect ratio settings, etc. The TV has a VGA connector but I am unsure if it would fix it, as I don’t have a VGA cable long enough, and am not sure it would get me the 1920x1080 resolution which I want. Using another resolution does not fix the problem.
I tried custom modelines with the dimensions of my screen’s viewable area, but it wouldn’t let me use them.
Ubuntu apparently doesn’t automatically generate an xorg.conf file for use. I read somewhere that modifying it may help solve it. I tried X -configure several times(with reboots, etc.) but it consistently gave the following error messages:
In log file:
…
(WW) Falling back to old probe method for vesa
Number of created screens does not match number of detected devices.
Configuration failed.
In output:
…
(++) Using config file: "/root/xorg.conf.new"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
Number of created screens does not match number of detected devices.
Configuration failed.
Server terminated with error (2).
Closing log file.
Tried using 'overscan' prop in xrandr:
root@xxx:/home/xxx# xrandr --output HDMI1 --set overscan off
X Error of failed request: BadName (named color or font does not exist)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 11 (RRQueryOutputProperty)
Serial number of failed request: 42
Current serial number in output stream: 42
'overscan on', 'underscan off', 'underscan on' were all also tried.
Originally tried with Ubuntu 12.04, but failed and so updated to 12.10 when it was released. All software is up to date.
I am not opposed to reinstalling my OS, likely will anyways (my preference being Arch).
