Enable high screen resolution on ubuntu 11.04

harisankarg · 08-12-2011, 03:19 AM

My current screen resolution for ubuntu 11.04 is 1152 X 864
when i tried to change it to 1360 x 768. screen moved to side and no able to adjust. i want to increase my resolution, because my in wide screen it looking bore. Please help my Graphics card is nvidia 7200 GS.
LG 21" LCD.

TobiSGD · 08-12-2011, 04:39 AM

This may be a driver problem. Have you tried to install the NVidia driver (using the Additional Drivers program)? Don't forget to reboot after installing the driver.

harisankarg · 08-12-2011, 10:13 AM

yes TobiSGD, installed the current version, rebooted.
now im using 1152x864 and the screen stretches.
in windows 1360x768 is better, but when i tried in ubuntu screen goes some where....
hope u understand my prblm see the screen shot.

eSelix · 08-12-2011, 10:57 AM

Can you post your "/etc/X11/xorg.conf" file and output of "xrandr" command?

harisankarg · 08-13-2011, 12:47 AM

Quote:

Originally Posted by eSelix

Can you post your "/etc/X11/xorg.conf" file and output of "xrandr" command?

X config

# 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 "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "CRT-1"
HorizSync 28.0 - 55.0
VertRefresh 43.0 - 72.0
Option "DPMS"
# HorizSync source: builtin, VertRefresh source: builtin
EndSection

Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "1152x864_60 +0+0; 1152x864 +0+0"
# Removed Option "metamodes" "1152x864 +0+0"
SubSection "Display"
Depth 24
EndSubSection
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"
# generated from default
EndSection

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

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 7300 SE/7200 GS"
Option "NoLogo" "True"
EndSection

-------------------------------------------------------------------------------------

rdandr

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 240, current 1152 x 864, maximum 1152 x 864
default connected 1152x864+0+0 0mm x 0mm
1152x864 50.0* 51.0
1024x768 52.0
800x600 53.0 54.0 55.0
680x384 56.0 57.0
640x480 58.0
576x432 59.0
512x384 60.0
400x300 61.0 62.0 63.0
320x240 64.0

eSelix · 08-13-2011, 07:22 AM

Backup your xorg.conf file by renaming it for example to xorg.conf.bak and create new with this content (you must be root to do this or use sudo):

Code:

Section "Screen"
  Identifier "Screen0"
  Device "Device0"
  DefaultDepth 24
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 "Device"
  Identifier "Device0"
  Driver "nvidia"
  VendorName "NVIDIA Corporation"
  BoardName "GeForce 7300 SE/7200 GS"
  Option "NoLogo" "True"
EndSection

Section "ServerFlags"
  Option        "Xinerama"  "Off"
  Option        "AllowEmptyInput" "True"
EndSection

then restart X server or PC. Don't panic if you spot black screen after restart, just login and write

Code:

cp /etc/X11/xorg.conf.bak /etc/X11/xorg.conf

to restore old file.

harisankarg · 08-13-2011, 09:51 AM

ooooopss :-(
eSelix,

now got the resolution 640 x 480 :-/
i restored old one, but now the option 1360x768 not in that list and refresh rate reduced from 60 to 50-51
how it happens???
:-|

eSelix · 08-13-2011, 10:32 AM

Please post your "/var/log/Xorg.0.log" and that from "640x480 resolution" - probably "Xorg.1.log" files. If you don't known which is it, post all you have Xorg.<number>.log. Also output of "dmesg" command can be handy.

harisankarg · 08-14-2011, 06:32 AM

Quote:

Originally Posted by eSelix

Please post your "/var/log/Xorg.0.log" and that from "640x480 resolution" - probably "Xorg.1.log" files. If you don't known which is it, post all you have Xorg.<number>.log. Also output of "dmesg" command can be handy.

plz tell me which is the best linux os???

except ubuntu & fedora...

eSelix · 08-14-2011, 06:45 AM

For me every Linux is the best

Search the forum, as many people ask that. It depends on what are your requirements about system, how and to what you want to use it, etc. Anyway your problems with graphics is not related to specific distribution, rather to Xorg application, nvidia drivers, maybe kernel version, which are nearly the same on every distribution.

harisankarg · 08-14-2011, 09:44 AM

mmm i know, sorry for asking because i heard that some linux (puppy linux) for low hardware system.

anyway my system is not a low...
plz check my "/var/log/Xorg.0.log"

RockDoctor · 08-14-2011, 10:01 AM

In order to get my LCD panel's full 1680x1050 resolution, I first run gtf from a terminal window to get the modeline I need:

Code:

~$ gtf 1680 1050 60

  # 1680x1050 @ 60.00 Hz (GTF) hsync: 65.22 kHz; pclk: 147.14 MHz
  Modeline "1680x1050_60.00"  147.14  1680 1784 1968 2256  1050 1051 1054 1087  -HSync +Vsync

Then I place that modeline in the "Monitor" section of my xorg.conf file

Code:

Section "Monitor"

	#UseModes     "Modes0" #monitor0usemodes
	Identifier   "Monitor0"
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
	DisplaySize  432	270
	HorizSync    30.0 - 86.0
	VertRefresh  56.0 - 76.0
	ModeLine     "1680x1050" 147.1 1680 1784 1968 2256 1050 1051 1054 1087 -hsync +vsync

And set this mode as an option in the "Screen" section:

Code:

ection "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	SubSection "Display"
		Viewport   0 0
		Depth     24
        Option "IgnoreEDID" "TRUE"
		Modes    "1680x1050" "1280x1024"
	EndSubSection
EndSection

HTH