Change framebuffer resolution

While trying to update kernel in order to run Virtualbox, i got a weird resolution error. On OS boot, screen blanks with an error like “Resolution is beyond allowed limits”. Since this happens before GUI is loaded, Xorg is innocent. I’ve installed the 915resolution patch for a widescreen HP, but it’s innocent too.

Well, this is a framebuffer issue! To solve it I’ve followed these instructions on technobounce.

  • apt-get install hwinfo
  • hwinfo –framebuffer
  • Then make a backup copy of your /boot/grub/menu.lst and add to your kernel line vga=0x035a where 0x035a is the wanted resolution mode.
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2 thoughts on “Change framebuffer resolution

  1. Panagiotis Hatzis

    That’s a really nice tip! Successfully used it on a sony vaio ux with a non-standard framebuffer resolution (1024×600). Cheers!

    Reply

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