Asterisk disable frame buffer

How to disable the Linux VESA frame buffer

Using the X Window System or a VESA Frame Buffer may cause jittery sound.

How do you know if you’re using a frame buffer console?

Is there a penguin in the upper left when it boots, or some other graphic? If so you’re in a frame buffer.

How to remove it

If you’re using LILO:

1. ) Edit lilo.conf and remove any line that begins with vga=
2. ) run /sbin/lilo -v
3. ) reboot

If you’re using Grub:

1. ) edit /boot/grub/menu.lst
2. ) find the command that loads kernel, e.g. something like this:

kernel (hd0,1)/boot/vmlinuz root=/dev/hda2 vga=0x317:off splash=silent showopts

1. ) change the parameter vga=… to vga=normal
2. ) save and reboot

If you’re not using LILO or Grub, disable Console Drivers -> Frame Buffer -> Support (CONFIG_FB) in your Linux kernel, recompile, install, and reboot.

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