Increase monitor resolution

[arnabdatta]

perfect!! Thank you soooo much!

[sundays211]

after step 5, the message:

xrandr: screen cannot be larger than 800x600 (desired size 1024x768)

appears.
I know that this is not the case as this computer has always used 1024x768 before now, it has just started having these problems in 10.04. my monitor is an old CRT type, so it should support all screen resolutions anyway. sometimes my computer starts up as it should with the 1024x768 option, while sometimes it does not.

any help would be much appreciated as most web pages do not display correctly in 800x600 mode.

[mhdbnoimi]

After closing some game my display resolution turned into 640x480 so I tried to modify xorg.conf to the following but I noticed that there are disappeared sides (at right & left) in my monitor and fonts appear small and ugly!!!

How can I fix this issue?
----xorg.conf-----

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 260.19.06  (buildd@yellow)  Mon Oct  4 15:59:51 UTC 2010

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 260.19.06  (buildmeister@builder101)  Mon Sep 13 04:59:45 PDT 2010

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"
    Identifier     "Monitor0"
#    VendorName     "Unknown"
#    ModelName      "CRT-0"
#    HorizSync       28.0 - 33.0
#    VertRefresh     43.0 - 72.0
#    Option         "DPMS"

#    Identifier      "External DVI"
    Modeline        "1360x768_60.00"   84.75  1360 1432 1568 1776  768 771 781 798 -hsync +vsync
    Option          "PreferredMode" "1360x768_60.00"

EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 9500 GT"
EndSection

Section "Screen"

# Removed Option "metamodes" "nvidia-auto-select @1360x768 +0+0"
# Removed Option "metamodes" "640x480 @1360x768 +0+0"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
#    Option         "TwinView" "0"
#    Option         "TwinViewXineramaInfoOrder" "CRT-0"
#    Option         "metamodes" "640x480 +0+0"
    SubSection     "Display"
        Depth       24
	Modes   "1360x768_60.00" "1024x768" "640x480"
    EndSubSection
EndSection

PS
I tried to change display resolution from display settings before modifying xorg.conf but I couldn't find any resolution bigger than 640x480 so I forced to change the resolution manually
Another thing, I tried the tip mentioned above but it didn't work because I got the following error message:

mbnoimi@admino-mbnoimi ~ $ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 240, current 1360 x 768, maximum 1360 x 768
default connected 1360x768+0+0 0mm x 0mm
   1360x768       50.0*    53.0  
   1024x768       51.0  
   640x480        52.0  
   800x600        54.0     55.0     56.0  
   680x384        57.0     58.0  
   512x384        59.0  
   400x300        60.0  
   320x240        61.0  
mbnoimi@admino-mbnoimi ~ $ cvt 1360 768
# 1360x768 59.80 Hz (CVT) hsync: 47.72 kHz; pclk: 84.75 MHz
Modeline "1360x768_60.00"   84.75  1360 1432 1568 1776  768 771 781 798 -hsync +vsync
mbnoimi@admino-mbnoimi ~ $ xrandr --newmode "1360x768_60.00"   84.75  1360 1432 1568 1776  768 771 781 798 -hsync +vsync
xrandr: Failed to get size of gamma for output default

[mhdbnoimi]

Any suggest guys

[saimanoj]

I installed Ubuntu 10.10 Meerkat. Then my screen resolution was 1024x768(19" screen)
It was acceptable.
Now, I updated my system using Update manager and after restarting and now it is 800x600.

I read all the posts in this thread and tried them

saimanoj@saimanoj-desktop:~$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 800 x 600, maximum 800 x 600
default connected 800x600+0+0 0mm x 0mm
800x600 61.0*
640x480 60.0

I am using an Nvidia Graphics card

saimanoj@saimanoj-desktop:~$ lspci|grep VGA
01:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9400 GT] (rev a1)

[donc786]

Thanks for the post. I can finally run higher than 1024x768 on a 19" monitor. I have a question that arose when messing with the /etc/gdm/Init file that is a little off topic, maybe someone could help point me towards the answer. It looks like some settings for the initial login (gdm?) are here. Is that correct? If so can they be changed to make the login box look different? I have found ways to change the colors and picture, but I would like to make the box either transparent or just the input box displayed without the rest of the stuff. Thanks again.

[kOeTsU]

koetsu@Thor:~$ xrandr --newmode “2048x1152_60.00″  197.97  2048 2184 2408 2768  1152 1153 1156 1192  -HSync +Vsync

koetsu@Thor:~$ xrandr --addmode LVDS1 2048x1152_60.00
X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  150 (RANDR)
  Minor opcode of failed request:  18 (RRAddOutputMode)
  Serial number of failed request:  33
  Current serial number in output stream:  34

Im stuck here, please help me!

I'm using ubuntu 10.10

[ahkond]

Today I woke up and turned on my ubuntu desktop to find that my large screen resolution was no longer available.

I've tried the various solutions in this thread but they did not help.

- xrandr says today that the maximum resolution is 1024x768 (yesterday I had a much higher resolution, probably 1920x1200).
- reinstalling gnome.session made no difference
- attempting to install envyng-core using Synaptic Package Manager only leads me to believe that envyng-core does not exist (not found)
- running dpkg-reconfigure xserver-xorg (with gdm stopped) did not help

Yes, it's NVidia. Everything worked fine yesterday, I did not install or alter anything, and today the machine is different.

[MarkX]

This is NOT SOLVED for most people here!!!!
Ubuntu and Diabol/Canon- ical are as ***t as ever at dealing with unrecognised monitors. FFS solve this problem properly!

[MaxPayneFH]

After inserting:

xrandr --newmode "1280x800_60.00"   83.50  1280 1352 1480 1680  800 803 809 831 -hsync +vsync

on step 3 I get the following output:

xrandr: Failed to get size of gamma for output default

Is there any way to fix this ?