Posted by alaa000 on 2012/3/30 14:02:31

hello

how can I Enable the the Linux Framebuffer on centos 5.7 ?

thanks

Posted by pschaff on 2012/3/30 20:43:50

Framebuffer support is enabled in the kernel. Please be more explicit about what you want to do.

As the current/supported version is CentOS-5.8 a "yum update" is recommended before proceeding.

Posted by alaa000 on 2012/4/2 8:18:06

hi,

thanks pschaff for your reply , so what i want to do is to use the frambuffer for displaying a craphic application ,

so i found the Xvfb ( virtual framebuffer )

please do you know how can i install and use this X server ?


thanks

best regards

Posted by pschaff on 2012/4/2 13:37:52

Quote:

That sounds like something to be avoided.

Quote:
I seriously doubt that is what you want:

Not suitable if you want to display a GUI application. Once more - please explain your requirements including what hardware (and if not a local display software/OS) you want to display on.

Posted by alaa000 on 2012/4/2 14:34:13

hi pschaff ,


i already installed "x11-server-Xvfb" on my System Board , so my goal is to display a GUI application locally , using the framebuffer of my board .

the probleme is that with centos 5.7 i did not found the derectory ( /dev/fb) , and for that i installed the virtual frambuffer .......so if you think that the "Xvfb" is not suitable for display a GUI application... what should i do ??

this is my board system configuration :


CPU: 500 MHz AMD Geode LX800
DRAM: 256 MB DDR DRAM
Storage: CompactFlash socket
Power: DC jack or passive POE, min. 7V to max. 20V
Three front panel LEDs, pushbutton
Expansion: 1 miniPCI slot, 1 miniPCI Express slot (USB only), LPC bus
Connectivity: 2 Ethernet channels (Via VT6105M 10/100)
I/O: DB9 serial port, dual USB port
Board size: 6 x 6" (152.4 x 152.4 mm)
Firmware: tinyBIOS

source : http://pcengines.ch/alix6f2.htm

thanks

Posted by pschaff on 2012/4/2 15:09:53

Sounds like you just need to install a GUI, but with that tiny amount of RAM it may be problematic as the CentOS product page lists 512MB as the minimum memory for a GUI. You might try
for a lightweight GUI.

Edit: Reviewing the specs on the link you supplied I see no graphics hardware listed. Please provide more information about your system by running "./getinfo.sh" and showing us the output file.

Posted by alaa000 on 2012/4/2 15:41:49

hi,

yes , that's true i don't have a graphic hardware for display , the goal of my appliucation is that : to run GUI application locally using just the framebuffer .

(" because we want that this board work independently , without being related to PC who have a display hardware )

and to verify that this application work i can use the Vncserver from a browser .

thanks

Posted by pschaff on 2012/4/2 21:09:28

OK - so I guess xorg-x11-server-Xvfb is what you want. Just install it with yum. I still wonder if the hardware is up to the job, but you can only determine that by trying it.