Widescreen resolution (1920x1200 @ 60 Hz) in Linux...

[MuD]

Title says it all. What do I have to do to get 1920x1200 @ 60 Hz? It must be exactly this resolution at this exact frequency or I may blow up the LCD! I'm currently running 1024x768 @ 75 Hz and don't want to re-install the O.S. just for an LCD change.

Edit: it's 1920x1200 not 1900x1200...

[MuD]

I found this poking around. Is it safe to use?

[Samoth]

You could edit the /etc/X11/xorg.conf and add your screen resolution to the file. There is also a section for vertical sync and horizontal sync in it. This is also where you specify you graphics card driver (Better Performance). Hope this helps.

[puntmuts]

Or calculate a modeline and add that to your config. http://xtiming.sourceforge.net/cgi-bin/xtiming.pl requires to enter the technical specs for your monitor and calculates a line which will setup your screen exactly how you specified it.

But if you specify the exact refresh rates ranges in your xorg.conf there should be no danger of damaging hardware. And I assume that modern LCD monitors are protected against out of range/frequency monitor settings.

[MuD]

Well, since I'm a n00b to Linux, I'm kind of lost... this is how my xorg.conf file looks like:

# **********************************************************************
# Monitor section
# **********************************************************************

# Any number of monitor sections may be present

Section "Monitor"

    Identifier  "My Monitor"

# HorizSync is in kHz unless units are specified.
# HorizSync may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY.  REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

    HorizSync   35.0 - 60.0

#    HorizSync	30-64         # multisync
#    HorizSync	31.5, 35.2    # multiple fixed sync frequencies
#    HorizSync	15-25, 30-50  # multiple ranges of sync frequencies

# VertRefresh is in Hz unless units are specified.
# VertRefresh may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY.  REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

    VertRefresh 60-75

EndSection


# **********************************************************************
# Graphics device section
# **********************************************************************

# Any number of graphics device sections may be present

Section "Device"
    Identifier  "VESA Framebuffer"
    Driver      "vesa"
    #VideoRam    4096
    # Insert Clocks lines here if appropriate
EndSection

# **********************************************************************
# Screen sections
# **********************************************************************

# Any number of screen sections may be present.  Each describes
# the configuration of a single screen.  A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.
Section "Screen"
    Identifier  "Screen 1"
    Device      "VESA Framebuffer"
    Monitor     "My Monitor"

# If your card can handle it, a higher default color depth (like 24 or 32)
# is highly recommended.

#   DefaultDepth 8
#   DefaultDepth 16
   DefaultDepth 24
#   DefaultDepth 32

# "1024x768" is also a conservative usable default resolution.  If you
# have a better monitor, feel free to try resolutions such as
# "1152x864", "1280x1024", "1600x1200", and "1800x1400" (or whatever your
# card/monitor can produce)

    Subsection "Display"
        Depth       8
        Modes "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
        Depth       32
        Modes "1024x768" "800x600" "640x480"
    EndSubsection

EndSection

I'm also going to get an nVidia GPU very soon so I don't know if the settings have to be changed again.