Arch Linux

Smeagol077

Member

Registered: 2014-04-02

Posts: 3

[SOLVED] LG TV inches detect wrong

I have this problem that Xorg detecting my 42" TV as 7", after that everything on screen is too big, fonts, top  bar and other things.
Is there a way to force Xorg to detect it correctly? Or to not change size of fonts even if it detects 7" ?
Now to make it work i have to disconnect my TV, login to linux with monitor and then connect my TV.
I have already tried UseEDID, IgnoreEDID, UseEdidDpi options with no success.

I have ArchLinux with Gnome 3.10 and Xorg 1.15 with Catalyst 14.3 drivers .
My xorg.conf:

Section "ServerLayout"
	Identifier     "aticonfig Layout"
	Screen      0  "aticonfig-Screen[0]-0" 0 0 
EndSection

Section "Module"
EndSection

Section "Monitor"
	Identifier   "aticonfig-Monitor[0]-0"
	Option	    "VendorName" "ATI Proprietary Driver"
	Option	    "ModelName" "Generic Autodetecting Monitor"
	Option	    "DPMS" "true"
	DisplaySize 508 286
EndSection

Section "Device"
	Identifier  "aticonfig-Device[0]-0"
	Driver      "fglrx"
	Option 	    "UseEdidDpi" "FALSE"
	Option "IgnoreEDID" "1"
	Option "UseEDID" "FALSE"
	BusID       "PCI:1:0:0"
	Screen 0
EndSection

Section "Screen"
	Identifier "aticonfig-Screen[0]-0"
	Device     "aticonfig-Device[0]-0"
	Monitor    "aticonfig-Monitor[0]-0"
	DefaultDepth     24
	Option "UseEdidDpi" "FALSE"
        Option "UseEDID" "FALSE"
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection

Section "InputClass"
        Identifier "joystick catchall"
        MatchIsJoystick "on"
        MatchDevicePath "/dev/input/event*"
        Driver "joystick"
        Option "StartKeysEnabled" "False"       #Disable mouse
        Option "StartMouseEnabled" "False"      #support
EndSection

Thanks in advance for any help.

Last edited by Smeagol077 (2014-04-03 08:37:29)

drcouzelis

Member

From: Connecticut, USA

Registered: 2009-11-09

Posts: 4,092

Website

Re: [SOLVED] LG TV inches detect wrong

Is the TV detected correctly without an "xorg.conf" file? Is the resolution detected correctly? What's the output of "xrandr"? I wonder if it's a Catalyst problem...

Smeagol077

Member

Registered: 2014-04-02

Posts: 3

Re: [SOLVED] LG TV inches detect wrong

With no xorg.conf everything act same, still big fonts.

So u know it looks like this: http://owncloud.smeagol.pl/public.php?s … f1d74f8d2b fonts on top should be similar size to website fonts.

Below is my xrandr output. DFP2 is TV, as You can see there is 160mm x 90mm sieze detected, but resolution is ok.

Screen 0: minimum 320 x 200, current 3600 x 1080, maximum 8192 x 8192
DFP1 disconnected (normal left inverted right x axis y axis)
DFP2 connected 1920x1080+1680+0 (normal left inverted right x axis y axis) 160mm x 90mm
   1920x1080     60.00*+  50.00    59.94    60.00    50.00    30.00    25.00    24.00    59.94    29.97    23.98  
   1776x1000     50.00    59.94    50.00    25.00    24.00    59.94    29.97  
   1680x1050     60.00    50.00    59.94    30.00    25.00    24.00    29.97    23.98  
   1400x1050     60.00    50.00    59.94    30.00    25.00    24.00    29.97    23.98  
   1600x900      50.00    59.94    25.00    24.00    29.97  
   1360x1024     60.00    50.00    59.94    30.00    25.00    24.00    29.97    23.98  
   1280x1024     50.00    60.02    25.00    29.97    23.98  
   1440x900      50.00    59.94    25.00    24.00    29.97  
   1280x960      50.00    60.02    25.00    29.97    23.98  
   1360x768      50.00    60.02    25.00    29.97    23.98  
   1152x864      50.00    59.96    25.00    29.97    23.98  
   1280x768      50.00    60.02    25.00    29.97    23.98  
   1280x720      60.00    50.00    25.00    59.94    29.97    23.98  
   1024x768      50.00    25.00    29.97    23.98    60.00  
   1152x648      50.00    59.94  
   800x600       50.00    25.00    29.97    23.98    60.32  
   720x480       50.00    25.00    29.97    23.98    60.00    59.94  
   640x480       50.00    25.00    29.97    23.98    60.00    59.94  
DFP3 disconnected (normal left inverted right x axis y axis)
DFP4 disconnected (normal left inverted right x axis y axis)
CRT1 connected primary 1680x1050+0+0 (normal left inverted right x axis y axis) 473mm x 297mm
   1680x1050     59.88*+
   1400x1050     59.88  
   1600x900      59.88  
   1360x1024     59.88  
   1280x1024     75.02    60.02  
   1440x900      74.98    59.89  
   1280x960      60.00  
   1280x800      59.81  
   1280x768      59.81  
   1280x720      59.81  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   640x480       75.00    59.94  
CRT2 disconnected (normal left inverted right x axis y axis)

I will try run it on os drivers, and check if its act same.
Edit: Free drivers dont work at all, so cant check.

Edit2: I found kind a solution, gnome is changeing DPI for small monitors, and this option can be turn off.
Everything looks good then, it does not fix detecting wrong size of screen, but i can live with that.
To turn off DPI changing type in console (or use dconf):

gsettings set org.gnome.desktop.interface scaling-factor 1

Last edited by Smeagol077 (2014-04-03 08:36:44)