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LCD widescreen rozlisenie 1440x900

Mam novy monitor 19" LCD monitor LG 194WT a mam problem na nom rozbehat nativne rozlisenie 1440x900. Vo winXp po doinstalovani ovladacov ide vsetko super ale v linuxe nie a nie to rozchodit...

nasiel som na webe nasledovny navod, no ani po jeho aplikovani rozlisenie nefunguje spravne:

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First step was adding the modeline for my monitor in the monitor section, --see below

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 30-83

# 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 56-75
Modeline "1440x900@60" 108.84 1440 1472 1880 1912 900 918 927 946

EndSection

Next step was add the resolution under the screen sections.

Section "Screen"
Identifier "Screen 1"
Device "NVIDIA GeForce"
Monitor "My Monitor"
DefaultDepth 24

Subsection "Display"
Depth 8
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "1440x900" "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
EndSection

and finally the last step that took me FOREVER to find was adding this simple line in the device section --

Section "Device"
Identifier "NVIDIA GeForce"
Driver "nvidia"
Option "ModeValidation" "NoEdidDFPMaxSizeCheck"
#VideoRam 262144
# Insert Clocks lines here if appropriate
EndSection

(the Modevalidation options is what did it)
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Skusal som uz vsetko mozne a zacinam byt pomaly zufaly.
Nemate niekto zaruceny navod, ako to rozbehat ??