Share your knowledge at the LQ Wiki.
Go Back > Forums > Linux Forums > Linux - Software
User Name
Linux - Software This forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.


  Search this Thread
Old 01-15-2011, 10:52 AM   #1
LQ Newbie
Registered: Apr 2010
Distribution: Ubuntu
Posts: 6

Rep: Reputation: 0
/dev/fb0: No such file or directory

I'm attempting to use fbgrab and fbcat, but it requires /dev/fb0 to exist. I've checked in /dev/ and it unfortunately doesn't exist

How can I create this file? My computer specs are in my signature and I'm using the proprietary ATI Radeon 4500 graphics driver
Old 01-15-2011, 10:56 AM   #2
Senior Member
Registered: Dec 2005
Location: Massachusetts, USA
Distribution: Ubuntu 10.04 and CentOS 5.5
Posts: 3,873

Rep: Reputation: 332Reputation: 332Reputation: 332Reputation: 332
Did you look at the Frambuffer HowTo page that is linked from the fbgrab home page?
Old 01-15-2011, 11:01 AM   #3
LQ Newbie
Registered: Apr 2010
Distribution: Ubuntu
Posts: 6

Original Poster
Rep: Reputation: 0
I've tried reading up on the part specific to ATI cards but I don't trust instructions that are untested.
Old 01-15-2011, 01:15 PM   #4
Senior Member
Registered: May 2006
Posts: 3,091

Rep: Reputation: 399Reputation: 399Reputation: 399Reputation: 399
You will want to use the vesa framebuffer if you are going to stick with the proprietary drivers. Assuming your kernel has support for it, you'll need to pass vga=somemode to the kernel. Check the "What VESA modes are available to me?" part of the document you were looking at.

Old 01-17-2011, 07:16 AM   #5
Registered: Apr 2009
Distribution: slackware 14.1 64-bit, slackware 14.2 64-bit, SystemRescueCD
Posts: 447

Rep: Reputation: 99
1. first check that framebuffer is enabled in your kernel
Execute this command
zcat /proc/config.gz | grep -v '^#' | grep FB
It should return something like
2. If the answer is yes you should have in your boot options
(your grub menu or lilo menu) something like
or vga=792, etc. according to your screen size and resolution
(If you have a 15-inch, 791 should be fine)

If framebuffer is not enabled in your kernel you'll have to
rebuild the kernel by enabling these options first


ati, xorg

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
/dev/fb0: No such device but i can see it marius_c Linux - Software 5 02-17-2010 11:58 PM
/dev/fb0 Not found when first running X CD1212 Linux From Scratch 4 01-17-2010 07:56 PM
mplayer: Can't open /dev/fb0: Permission denied jojoii Linux - Software 2 09-21-2008 05:56 PM
/dev/fb0: No such file or directory mukeshj Linux - Software 2 09-04-2005 11:15 AM
udev : framebuffer device (/dev/fb0) default permissions keefaz Slackware 6 07-04-2004 06:54 PM > Forums > Linux Forums > Linux - Software

All times are GMT -5. The time now is 07:42 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration