console/tty (framebuffer?) too slow!!!

if you do

ls -al /usr/bin

in tty/console (ctrl+alt+f1), you may found its scrolling is very slow or/and lag, so i found a way to frameskip:)
just add


to /boot/grub/menu.lst ‘s kernel line, so after added, mine look like:

title Arch Linux
root (hd0,2)
kernel /boot/vmlinuz26 root=/dev/sda3 ro usbcore.autosuspend=1 vga=0x361 video=vesafb:ywrap,mtrr:3
initrd /boot/kernel26.img

now reboot and enjoy fast scrolling!

trick from man fbterm

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One Comment

  1. osirisgothra
    Posted 2014-06-05 Thursday at 19:21 | Permalink

    yeah that is a good (but older) advice from ‘man fbterm’ however it hasnt been updated for grub2 so be careful modifying it, furthermore, you should never update your grub files directly, make sure you edit only /etc/default/grub (not /boot/grub/grub.cfg, bad idea and easily messed up!) Also, i think if you use ‘console’ from grub in the first place, that can make the terminal even slower, esp on 1080i with big fonts, big fonts need to scroll more often so it is best to set the smallest font you can find (probably a 12px CyrAsia font will be good). In this case, you may speed it up just by ‘modprobe fb_vesa’ to load the driver, doing that right off the bad i had 2-3x faster scrolling in the terminal. But thats annoying so its much better to add that command line in the /etc/default/grub file under the two LINUX_… and LINUX_…_DEFAULT keys (they are right next to each other).

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  1. […] Published 2010/05/27 Linux Leave a Comment Somehow I wandered onto this page the other day, and found a rather nifty framebuffer speedup tip. Adding this to your kernel boot […]

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