$  sudo add-apt-repository ppa:nvidia-vdpau/ppa
$  sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
$  sudo apt-get update && sudo apt-get upgrade

PowerStrip다운로드 후 트레이아이콘에서 “Display Profiles” → “Configure” → “Advanced timing options” 나오는 정보중 마지막 줄이 Xorg modeline 임

First 모드라인

PowerStrip timing parameters:
1440x900=1440,80,152,232,900,3,6,25,106554,512
 
Generic timing details for 1440x900:
HFP=80 HSW=152 HBP=232 kHz=56 VFP=3 VSW=6 VBP=25 Hz=60
 
VESA detailed timing:
PClk=106.55 H.Active=1440 H.Blank=464 H.Offset=64 HSW=152 V.Active=900 V.Blank=34 V.Offset=3 VSW=6
 
Linux modeline parameters:
"1440x900" 106.554 1440 1520 1672 1904 900 903 909 934 +hsync +vsync
 
PowerStrip timing parameters:
1440x900=1440,80,152,232,900,3,6,25,106554,512
 
Generic timing details for 1440x900:
HFP=80 HSW=152 HBP=232 kHz=56 VFP=3 VSW=6 VBP=25 Hz=60
 
VESA detailed timing:
PClk=106.55 H.Active=1440 H.Blank=464 H.Offset=64 HSW=152 V.Active=900 V.Blank=34 V.Offset=3 VSW=6
 
Linux modeline parameters:
"1440x900" 106.554 1440 1520 1672 1904 900 903 909 934 +hsync +vsync

$ diff /etc/X11/xorg.conf.backup /etc/X11/xorg.conf
36c36
<     HorizSync       28.0 - 55.0
---
>     HorizSync       28.0 - 60.0
54c54,55
<     Option         "metamodes" "1024x768 +0+0"
---
>     Option         "metamodes" "1440x900 +0+0"
>     #Option         "metamodes" "1024x768 +0+0"

수정 후

133 [  1250.759] (**) NVIDIA(0): Option "MetaModes" "1440x900 +0+0"
134 [  1250.759] (**) NVIDIA(0): Enabling 2D acceleration
135 [  1252.241] (WW) NVIDIA(GPU-0): The EDID read for display device CRT-1 is invalid:
136 [  1252.241] (WW) NVIDIA(GPU-0):     unrecognized EDID Header.

현재 모드라인 얻기

$ xvidtune -show
"1440x900"    106.50   1440 1520 1672 1904    900  903  909  934 -hsync +vsync

XEVA 32 모드라인

PowerStrip timing parameters:
1360x768=1360,80,112,240,768,3,6,18,85500,2048
 
Generic timing details for 1360x768:
HFP=80 HSW=112 HBP=240 kHz=48 VFP=3 VSW=6 VBP=18 Hz=60
 
VESA detailed timing:
PClk=85.50 H.Active=1360 H.Blank=432 H.Offset=64 HSW=112 V.Active=768 V.Blank=27 V.Offset=3 VSW=6
 
Linux modeline parameters:
"1360x768" 85.500 1360 1440 1552 1792 768 771 777 795 +hsync +vsync

CARDINAL 모니터 모드라인

PowerStrip timing parameters:
1280x1024=1280,56,112,240,1024,1,3,38,108000,272

Generic timing details for 1280x1024:
HFP=56 HSW=112 HBP=240 kHz=64 VFP=1 VSW=3 VBP=38 Hz=60

VESA detailed timing:
PClk=108.00 H.Active=1280 H.Blank=408 H.Offset=40 HSW=112 V.Active=1024 V.Blank=42 V.Offset=1 VSW=3

Linux modeline parameters:
"1280x1024" 108.000 1280 1336 1448 1688 1024 1025 1028 1066 +hsync +vsync

vi /etc/gdm/Init/Default : 아래 내용 추가

xrandr --newmode "1280x1024" 108.000 1280 1336 1448 1688 1024 1025 1028 1066 +hsync +vsync
xrandr --addmode DVI-0 "1280x1024"
xrandr --output DVI-0 --mode 1280x1024

$ sudo service gdm stop
$ sudo Xorg -configure
$ sudo mv ~/xorg.conf.new /etc/X11/xorg.conf
$ sudo service gdm start

install

$ sudo apt-get install read-edid

read

$ sudo get-edid | parse-edid

• Obtaining modelines from Windows program PowerStrip
• X/Config/Resolution
• http://howto-pages.org/ModeLines/