How to set my Nvidia GT 335m under ubuntu to 96 dpi (1366X768)

[etiennenoel]

In my xorg.conf file, I have this configuration

Section "Monitor"      # HorizSync source: edid, VertRefresh source: edid  # 1366X768 96dpi         Identifier     "Monitor0"     VendorName     "Unknown"     ModelName      "AUO"     DisplaySize     361    203     HorizSync       30.0 - 75.0     VertRefresh     60.0     Option         "DPMS" #   DisplaySize 270 203 # 1024x768 96dpi #   DisplaySize 338 254 # 1280x960 96dpi #   DisplaySize 338 270 # 1280x1024 96dpi #   DisplaySize 370 277 # 1400x1050 96dpi #   DisplaySize 423 370 # 1600x1400 96dpi EndSection

Hovewever, under nvidia control panel or running this command :

xdpyinfo | grep reso

I get this as a result:

resolution:    111x114 dots per inch

[realzippy]

..can you post your (whole) xorg.conf again in a way that it is readable?

[etiennenoel]

Sorry for that, here is the xorg.conf

Section "Monitor"

# HorizSync source: edid, VertRefresh source: edid
# 1366X768 96dpi
Identifier "Monitor0"
VendorName "Unknown"
ModelName "AUO"
DisplaySize 361 203
HorizSync 30.0 - 75.0
VertRefresh 60.0
Option "DPMS"
# DisplaySize 270 203 # 1024x768 96dpi
# DisplaySize 338 254 # 1280x960 96dpi
# DisplaySize 338 270 # 1280x1024 96dpi
# DisplaySize 370 277 # 1400x1050 96dpi
# DisplaySize 423 370 # 1600x1400 96dpi
EndSection

[realzippy]

Is this your whole xorg.conf or only the monitor section?
Where is it from?Did you create it yourself?
Did you install the nvidia driver?

Please post output from:

lspci | grep VGA

[etiennenoel]

Only the monitor, here's the whole. It comes from the nvidia-driver :

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 270.29 (buildd@roseapple) Fri Feb 25 14:43:24 UTC 2011


Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "InputDevice"

# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection

Section "Monitor"

# HorizSync source: edid, VertRefresh source: edid
# 1366X768 96dpi
Identifier "Monitor0"
VendorName "Unknown"
ModelName "AUO"
DisplaySize 361 203
HorizSync 30.0 - 75.0
VertRefresh 60.0
Option "DPMS"
# DisplaySize 270 203 # 1024x768 96dpi
# DisplaySize 338 254 # 1280x960 96dpi
# DisplaySize 338 270 # 1280x1024 96dpi
# DisplaySize 370 277 # 1400x1050 96dpi
# DisplaySize 423 370 # 1600x1400 96dpi
EndSection

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GT 335M"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "nvidia-auto-select +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection

[realzippy]

Can you please create a new xorg.conf with

sudo nvidia-xconfig

and post again?(think you have edited some stuff manually!?)

[etiennenoel]

Here you go :
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 270.41.06 (buildmeister@swio-display-x86-rhel47-07.nvidia.com) Mon Apr 18 15:15:12 PDT 2011

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 270.29 (buildd@roseapple) Fri Feb 25 14:43:24 UTC 2011

Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "InputDevice"

# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection

Section "Monitor"

# HorizSync source: edid, VertRefresh source: edid
# 1366X768 96dpi
Identifier "Monitor0"
VendorName "Unknown"
ModelName "AUO"
DisplaySize 361 203
HorizSync 30.0 - 75.0
VertRefresh 60.0
Option "DPMS"
# DisplaySize 270 203 # 1024x768 96dpi
# DisplaySize 338 254 # 1280x960 96dpi
# DisplaySize 338 270 # 1280x1024 96dpi
# DisplaySize 370 277 # 1400x1050 96dpi
# DisplaySize 423 370 # 1600x1400 96dpi
EndSection

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GT 335M"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "nvidia-auto-select +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection

Thanks for your time !

[realzippy]

Which laptop?
or:
Are you sure it has 1366x768 native resolution?

[etiennenoel]

My laptop is an Asus N82J-N82JQ

An yes, under windows the 1366X768 resolution is shown and also under ubuntu but the dpi is not set to 96 under ubuntu.

[realzippy]

Can you try this as xorg.conf:

gksudo gedit /etc/X11/xorg.conf

Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "AUO"
HorizSync 30.0 - 75.0
VertRefresh 60.0
Option "DPMS"
Option "UseEdidDpi" "FALSE"   #added (admit I am not sure which section) 
Option "DPI" "96 x 96"        #added   "
Modeline "1368x768_60.00"   85.25  1368 1440 1576 1784  768 771 781 798 -hsync +vsync  #added
EndSection

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GT 335M"
Option "UseEdidDpi" "FALSE"   #added
Option "DPI" "96 x 96"        #added
Option        "ModeDebug"   "True"  #added,gives more info in Xorg.0.log
EndSection

Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "0"
SubSection "Display"
Depth 24
Modes        "1368x768_60"
EndSubSection
EndSection

Reboot or restart xserver