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#1 2012-05-30 01:08:31

Inxsible
Forum Fellow
From: Chicago
Registered: 2008-06-09
Posts: 9,183

[SOLVED]screen cut off in 1920x1080

I connected my desktop to my HDTV, however, the screen is cut off from all 4 sides unless I set it at a lower resolution. My search-fu seems to be weak today, but I found a couple of threads on intel indicating that putting i915 in the mkinitcpio helps, but I have ATI card and I use xf86-video-ati as the driver.

Here are the screenshots of what I am talking about.
1920x1080 :  u5oJws.png
EDIT : I just noticed that the screenshot doesn't show the cutoff screen. but on the screen I cannot see the first 3 lines of commands. Also from the left, I cannot see my username in the PS1. From the bottom I cannot see the i3 bar or conky.

my xrandr ouput when I don't have a 10-monitor.conf :

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
DIN disconnected (normal left inverted right x axis y axis)
DVI-0 disconnected (normal left inverted right x axis y axis)
DVI-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 160mm x 90mm
   1920x1080      60.0*+   30.0     24.0     30.0  
   1680x1050      60.0  
   1600x900       60.0  
   1280x1024      75.0     60.0  
   1440x900       59.9  
   1366x768       59.8  
   1280x800       59.8  
   1152x864       75.0  
   1280x720       60.0  
   1024x768       75.1     70.1     60.0  
   1440x480       30.0  
   832x624        74.6  
   800x600        72.2     75.0     60.3  
   720x480        59.9  
   640x480        72.8     75.0     66.7     60.0  
   720x400        70.1  

1680x1050 : 8ADBvs.png

To get the 1680x1050 resolution, I put this in 10-monitor.conf file under /etc/X11/xorg.conf.d/

Section "Monitor"
	Identifier	"Monitor0"
EndSection

Section "Device"
	Identifier	"Device0"
	Driver		"radeon"
EndSection

Section "Screen"
	Identifier	"Screen0"
	Device		"Device0"
	Monitor		"Monitor0"
	DefaultDepth	24
	SubSection	"Display"
		Depth	24
		Modes	"1920x1080"
	EndSubSection
EndSection

The resolution is correct, but still the screen is cutoff. So is it possible for me to get the whole screen while in 1920x1080 resolution with the xf86-video-ati driver? Can this be fixed or is this one of those 1080i vs1080p issues where TV resolutions and computer resolutions don't quite match exactly?


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#2 2012-05-30 01:42:46

Pres
Member
Registered: 2011-09-12
Posts: 423

Re: [SOLVED]screen cut off in 1920x1080

Have you gone into your TV's menu to see if any settings affect this? Maybe something like aspect ratio or zoom...

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#3 2012-05-30 01:49:50

Trilby
Inspector Parrot
Registered: 2011-11-29
Posts: 29,445
Website

Re: [SOLVED]screen cut off in 1920x1080

It sounds like TV overscan.

While I prefer the open source version for my purposes, I suspect the catalyst drivers will be much more likely to have settings to compensate for the overscan.

Googling "overscan catalyst" gives many promising looking results, but as I don't have catalyst to test anything out I didn't look further.


"UNIX is simple and coherent..." - Dennis Ritchie, "GNU's Not UNIX" -  Richard Stallman

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#4 2012-05-30 02:11:05

David Batson
Member
Registered: 2011-10-13
Posts: 640

Re: [SOLVED]screen cut off in 1920x1080

I saw this before and it was a TV setting that needed changing.  I believe you need to change the TV display to "Normal" rather than "Wide" or "Panoramic" or some such.

Of course verify what resolutions your TV is capable of from its specifications and set your computer to one of those resolutions.

EDIT: Overscan is a possibility, but AFAIK this should only be a problem with CRT screens - not flat screens.  Could be wrong though...

Last edited by David Batson (2012-05-30 02:22:28)

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#5 2012-05-30 04:16:51

Inxsible
Forum Fellow
From: Chicago
Registered: 2008-06-09
Posts: 9,183

Re: [SOLVED]screen cut off in 1920x1080

Well that helped. My TV Picture was set to 16:9 aspect. Changing it to "Screen Fit" now shows the entire screen correctly. I hope that doesn't screw up the TV viewing..or it will be a pain to keep switching the picture setting. However, the fonts atleast in all GUI apps have kinda become weird. Some letters are randomly darker/bolder than others. It wasn't like this in 1680x1050 res., but that's probably some other issue. Here's what I mean ...
ur7NYs.png


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There's no such thing as a stupid question, but there sure are a lot of inquisitive idiots !

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#6 2012-05-30 11:20:56

Pres
Member
Registered: 2011-09-12
Posts: 423

Re: [SOLVED]screen cut off in 1920x1080

If it's like my TV, it should save settings like that for each input so you don't have to change them every time you switch.

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#7 2012-05-30 14:46:34

Inxsible
Forum Fellow
From: Chicago
Registered: 2008-06-09
Posts: 9,183

Re: [SOLVED]screen cut off in 1920x1080

alright. solved it is then... I will try to fix the font issue later...

Thank you all.


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There's no such thing as a stupid question, but there sure are a lot of inquisitive idiots !

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