OpenEuphoria

Re: DirectFB for Linux

• Posted by jmduro Apr 02, 2019
• 1411 views

fbset is not installed by default. You have to install the package.

sudo apt install fbset 

On Ubuntu, framebuffers seem to be deactivated by default: https://unix.stackexchange.com/questions/33596/no-framebuffer-device-how-to-enable-it

Look at available framebuffers

sudo ls /dev/fb* 

Your framebuffer might be "/dev/fb1" instead of the default "/dev/fb0". If there is no framebuffer then your Linux misses an optional package or a driver. Try to install the following:

sudo apt install libdirectfb-dev 

I hope it installs also the specific driver for your graphics card. Check for framebuffers after installing the package. If there is still none, than it might be a little more complicated as it will be hardware specific. In this case, install hwinfo.

sudo apt install hwinfo 

Then run it and provide specific hardware information. Here is what hwinfo reports for my PC (extract):

31: PCI 02.0: 0300 VGA compatible controller (VGA) 
... 
  Hardware Class: graphics card 
  Device Name: "Intel(R) HD Graphics Device" 
  Model: "Intel 2nd Generation Core Processor Family Integrated Graphics Controller" 
... 
  Driver: "i915" 
  Driver Modules: "i915" 
... 
  Driver Info #0: 
    Driver Status: i915 is active 
    Driver Activation Cmd: "modprobe i915" 
  Config Status: cfg=new, avail=yes, need=no, active=unknown 

Jean-Marc

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