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-   -   Slow terminal history browse using vesafb (http://www.linuxquestions.org/questions/slackware-14/slow-terminal-history-browse-using-vesafb-819118/)

maxkukartsev 07-10-2010 03:02 PM

Slow terminal history browse using vesafb
 
Hello everyone,

I've just installed Slackware 13.1 and am using a VESA framebuffer on a dv5-1251nr HP laptop with standard hardware.

In bash when I browse the command history using the up/down arrow keys the input line changes rather slowly.

For example, when I am on the history command
Code:

cp /boot/kernel-2.6.33.4 /boot/kernel-2.6.33.4.old
and the next command I go to is
Code:

make modules_install
The terminal input line deletes each character from the beginning and changes something like this:
Code:

cp /boot/kernel-2.6.33.4 /boot/kernel-2.6.33.4.old
p /boot/kernel-2.6.33.4 /boot/kernel-2.6.33.4.old
 /boot/kernel-2.6.33.4 /boot/kernel-2.6.33.4.old
...
/kernel-2.6.33.4.old
make modules_install

But going the opposite direction, from
Code:

make modules_install
to
Code:

cp /boot/kernel-2.6.33.4 /boot/kernel-2.6.33.4.old
is instant.

The effect does not happen with VESA turned off.
I've used VESA on other computers without this problem.


Thanks a lot.

maxkukartsev 08-18-2010 06:02 PM

I tried other linux distros on the same machine (gentoo, arch), but the slow scroll problem only appears in Slackware. So it's not because of the computer and probably not a problem with the generic VESAFB driver. Anyone experienced a similar issue?

Thanks.


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