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Revision as of 19:09, 14 January 2014 by Oleg (Talk | contribs)

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How to : Framebuffer: Userspace VESA VGA graphics support

Uvesafb is an improved framebuffer driver for Linux systems with some enhancements compared to vesa.

Kernel configuration

Build the kernel, do not install the kernel and modules. Note, that you can choose uvesafb as module, unlike vesa.


Next, we emerge dev-libs/klibc:

# emerge klibc

This step is necessary because klibc has to be compiled against a kernel that includes uvesafb. You need to do it only once.


sys-apps/v86d is the userspace helper that runs x86 code in emulated environment. Uvesafb will not work without v86d. Now, we emerge v86d:

# emerge v86d

Back to kernel configuration

Reconfigure the kernel:

Rebuild the kernel: make and install it, install the modules

Bootloader configuration

add video=uvesafb:1440x900-32,mtrr:3,ywrap (or similar) to your kernel command line, like in example boot.conf

boot {
        generate grub
        default "Funtoo Linux uvesafb" 
        timeout 3 
  "Funtoo Linux uvesafb" { 
        kernel bzImage-uvesafb[-v]
        params += video=uvesafb:1440x900-32,mtrr:3,ywrap

Then run:

# boot-update

and then run:

# reboot

and enjoy uvesafb!