Ubuntu

in Ubuntu ,how to set the display mode

Asked by ayongying

who can tell me.
in Ubuntu ,how to set the display mode: 800x600x16 (minimum) or 2560x1600x32 (maximum),And how to get the display mode info.

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Arnaudus
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Delan Azabani (azabani) said : 		#1

Choose System > Preferences > Display.

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ayongying (jying-jying) said : 		#2

Thank you for your help.
And I notice this option,But I only can set resolution in there ,such as 800*600,I couldn't find where I can set x16 or x32.

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Best Arnaudus (a-lerouzic) said : 		#3

I guess it might depend on the driver you're using for your video device. On my system, launching the proprietary (nvidia) configuration utility, I can change the color depth in "Xserver Display Configuration" -> "X screen" -> Color depth.

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ayongying (jying-jying) said : 		#4

Thanks very much for your info ,And I try this again ,still have some
questions.Sorry for my poor knowledge about Ubuntu system.

(1)in my host machine(Ubuntu 9.10),I using ATI display driver,But I couldn't
find where I can set color depth with Xserver ,Below system /preferences,I
can find ATI control center,open it ,But there is not the "Xserver Display
Configuration" option.

(2)I google the info like below:
edit /etc/X11/xorg.conf Go down to the Screen Section and find the line that
says "Default Depth" Then Just change that number to what you want. Save,
log out and restart X by <Ctrl><Alt><Backspace>
But following it ,I set Defult Depth = 16,But the Xserver fail to restart,I
have to enter recovery mode to move it back.

(3)I have a Ubuntu 9.10 VM base on my host,unfortunately,I even cound't find
the /etc/X11/xorg.conf file in the Guest.

On Tue, Feb 23, 2010 at 10:55 PM, Arnaudus <
<email address hidden>> wrote:

> Your question #102116 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/102116
>
> Status: Open => Answered
>
> Arnaudus proposed the following answer:
> I guess it might depend on the driver you're using for your video
> device. On my system, launching the proprietary (nvidia) configuration
> utility, I can change the color depth in "Xserver Display Configuration"
> -> "X screen" -> Color depth.
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https://answers.launchpad.net/ubuntu/+question/102116/+confirm?answer_id=2
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/ubuntu/+question/102116
>
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>

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ayongying (jying-jying) said : 		#5

Thanks Arnaudus, that solved my question.