How to set DPI as 90x90 for XVFB Display?

UNIX for Beginners Q & A UNIX for Dummies Questions & Answers
1

when i am connecting to AIX machine from Windows XP through Xmanager am getting dots per inch problem and here we are connecting to AIX machine using X Server virtual frame buffer . Please set 90x90 dots per inch to X Server virtual frame buffer.

2

What exactly does that mean? What is your problem and what would you like to achieve?

bakunin

3

\\\

DPI for XVFB DIsplay is 100X100.I would like to change DPI as 90x90 . Please tell me how to change DPI for XVFB.

4

See the man page for XVFB:

Get the dimensions of your physical display and set the number of vertical/horizontal pixels accordingly.

I hope this helps.

bakunin

5

Let me google that for you

Come on.

6

I would like to change DPI only not Dimensions.Please help me.
Thanks in advance

7

"DPI" is "Dots [=pixels] Per Inch" and means a sort of resolution. If your display is - for example - 10 inches wide and you set a resolution of 900 pixels, then you get 90 pixels per inch.

I hope this helps.

bakunin

8

case 1: if u connect to XServer then U will get 100x100 dpi when u type xdpyinfo command.

case 2:if u connect to XServer enabled with "XVFB" then U will get 90x90 dpi when u type xdpyinfo command.

I want 100x100 dpi in the above Case2. Please solve this issue.

Thanks in advance.

9

First off: please kindly refrain from using leet-speak here. Most of us shun that practice and if you save on even the two keystrokes writing "u" instead of "you" why should we undergo the effort to write complete answers to your questions?

Second: I already told you to read the documentation which says:

Would you have done that, you would have found (at this page) the following:

Quoting further from the manual page:
XVFB (X Virtual Frame Buffer) is an X server that can run on machines with no display hardware [...] It emulates a dumb framebuffer [...].

It is clear that the software cannot determine the screen size and/or resolution of a virtual device. Therefore this value has to be set by the commandline. Exactly this is what the "-dpi" command line switch is for - to provide a value when the X server cannot determine it itself.

I suggest you put a little more effort not only in your writing but also in solving your problems. I promise your Unix experience will take on a complete new quality and eternal happiness anywhere near a command line will await you. :-))

I hope this helps.

bakunin

10

I executed below command in AIX machine.
bash-3.2$ /usr/bin/X11/X :5 -vfb -force -x abx -x dbe -x GLX -I -dpi 90x90 &

Then I executed Xdpyinfo command that shows still dpi 100X100. Please explain how to set dpi as 90x90.

---------- Post updated 07-08-14 at 12:02 AM ---------- Previous update was 07-07-14 at 12:03 AM ----------

if you type command xdpyinfo after connecting to XVFB display ,then you will get resolution 100x100.

But i want 90x90 resolution.Please solve above problem.

Thanks in advance.

11

Please reply to this post.

Thanks in advance