Thursday, September 10, 2009

Using a HDTV as a Monitor

I sit across the room from my 46" TV and use a wireless keyboard. It's great! Alas, some Gnome and other Linuxy programs get confused by the TV's size and dimensions, so they display HUGE FONTS. On some programs, but not others. The last straw was when Emacs23 came out and I couldn't use it. But, now, it's all fixed!

Here's the magic jibberish from /etc/X11/xorg.conf:
Section "Monitor"
Identifier "Samsung" # LNA650

# from Samsung manual, for 1920x1080p:
HorizSync 67.500
VertRefresh 60.000
Option "UseEdidDpi" "FALSE"
Option "DPI" "100x100"

This stanza gives you the old-school behavior so you can quickly test the X configuration. Hit Control-Alt-Backspace to restart the X server:

Section "ServerFlags"
# re-enable Control-Alt-Backspace to restart X server:
Option "DontZap" "false"

Thanks, Aun!

EDIT: added "UseEdidDpi" line, to turn off the buggy DPI sensing, and use DPI=100 instead.

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