Problem with limited Display resolution

[chandanjc1]

Hi,

I have been using Ubuntu 9.04 for the last six months without any issues. Bur recently my display card got damaged and I had to get it replaced. But with the new card( Cirrus Logic GD 5446) i'm getting only resolution of 640x480. Also in "Display" options it displays "Monitor" as unknown. Also xorg.conf file does not have a "resolution" subsection :

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
EndSection

Can someone please tell me what might be going wrong here?.

[rokytnji]

It looks like your /etc/xorg.conf file is setup for the broke card.

You can try by opening a terminal and do a

sudo dpkg-reconfigure xserver-xorg

Follow the prompts making sure to select the correct driver for your

Cirrus Logic GD 5446

You can also check /var/log/Xorg.0.log file

You'll see a line that will tell you what config file is being used.
Example:
(==) Using config file: "/etc/X11/xorg.conf"


you could also open a terminal before reconfigure xserver and type in

xrandr

to see the supported resolutions with the /etc/xorg.conf you already have before reconfiguring it.

[devils casper]

Hi and Welcome !

Replace the contents of xorg.conf file with this

Section "Device"
       Identifier "Configured Video Device"
EndSection

Section "Monitor"
         Identifier "Configured Monitor"
         HorizSync 31.5 - 70.0
         VertRefresh 50-160
EndSection

Section "Screen"
        Identifier "Default Screen"
        Monitor "Configured Monitor"
        Device "Configured Video Device"
        DefaultDepth 24
        Subsection "Display"
             Depth 24
             Modes "1280x1024" "1024x768"
        EndSubsection
EndSection

[chandanjc1]

Hi,

Thanks for your replies. But it still doesn't seem to work.
With "sudo dpkg-reconfigure xserver-xorg" , i'm getting only keyboard settings and apparently in ubuntu, the configuration using this is removed and only auto config is supported for display . But for me that is not working either.

You can also check /var/log/Xorg.0.log file

, I checked this file and i'm getting following messages:

(WW) CIRRUS(0): Unable to estimate virtual size
(II) CIRRUS(0): Clock range:  12.00 to  85.50 MHz
(II) CIRRUS(0): Not using default mode "640x350" (vrefresh out of range)
(II) CIRRUS(0): Not using default mode "320x175" (bad mode clock/interlace/doublescan)
(II) CIRRUS(0): Not using default mode "640x400" (vrefresh out of range)
(II) CIRRUS(0): Not using default mode "320x200" (bad mode clock/interlace/doublescan)
(II) CIRRUS(0): Not using default mode "720x400" (vrefresh out of range)
(II) CIRRUS(0): Not using default mode "360x200" (bad mode clock/interlace/doublescan)
(II) CIRRUS(0): Not using default mode "320x240" (bad mode clock/interlace/doublescan)
(II) CIRRUS(0): Not using default mode "640x480" (vrefresh out of range)
(II) CIRRUS(0): Not using default mode "320x240" (bad mode clock/interlace/doublescan)
(II) CIRRUS(0): Not using default mode "640x480" (vrefresh out of range)
(II) CIRRUS(0): Not using default mode "320x240" (bad mode clock/interlace/doublescan)
(II) CIRRUS(0): Not using default mode "640x480" (hsync out o(II) CIRRUS(0): 
(II) CIRRUS(0): Not using default mode "400x300" (bad mode clock/interlace/doublescan)
(II) CIRRUS(0): Not using default mode "800x600" (insufficient memory for mode)
(II) CIRRUS(0): Not using default mode "400x300" (bad mode clock/interlace/doublescan)
(II) CIRRUS(0): Not using default mode "800x600" (insufficient memory for mode)
(II) CIRRUS(0): Not using default mode "400x300" (bad mode clock/interlace/doublescan)
(II) CIRRUS(0): Not using default mode "800x600" (insufficient memory for mode)
(II) CIRRUS(0): Not using default mode "400x300" (bad mode clock/interlace/doublescan)
(II) CIRRUS(0): Not using default mode "800x600" (insufficient memory for modf range)

Does this point to any particular problem that can be fixed from my side?

And the second solution suggested by devils casper is also not making any difference.

Please let me know if there's anything else I could try out.

[rokytnji]

Usually Devils Caspser is dead on right about configuring /etc/X11/xorg.conf file. So I had to look around because he is better than me at this kind of thing.

Copy and paste your /etc/X11/xorg.conf and rename it /etc/X11/xorg.confbackup or /etc/X11/xorg.confbk. Put it where you can find it like in /home/Backups (make a Backups folder/directory with right click make new) or Desktop. In case what I suggest borks your display. You can reuse your backup using a live cd to move it back to /etc/X11.




After backing /etc/xorg try editing /etc/X11/xorg.conf as follows (fingers crossed)

Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
HorizSync 20.0 – 50.0
VertRefresh 40.0 – 80.0
Option "DPMS"
EndSection

Section "Device"
Identifier "Card0"
Driver "vesa"
VendorName "Cirrus Logic"
BoardName "GD 5446"
BusID "PCI:0:2:0"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
SubSection "Display"
Viewport 0 0
Modes "1600×1200
EndSubSection
EndSection

(edit by rokytnji> put in screen resolution you want to use)"in the part that says

Modes "1600×1200

I am not sure if this will work. OK?