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Old 11-16-2004, 07:42 PM   #1
fsateler
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Registered: Jul 2004
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Screen doesn't scroll upwards when in console mode under vesafb


Hello there. I have a Debian Sarge running on my pc, and after a bit of struggling I managed to get a working bootsplash on a vesa framebuffer. However, I can't manage to fix this issue: whenever I am in console mode and open a file that is longer than the screen (using less, vim and the like), I can't scroll back, neither using the arrow keys nor the Page Up key.
Here is what man looks like after a couple of up keys:
Code:
              look for the most recent log file in /var/cache/modass (or the user-specified location).

       install
 ESC[A              # This appears when I press the up
       install     # Now I pressed down
 ESC[A
       install
 ESC[A
       install
 ESC[A
Notice that when I press the down arrow the line shown is the one it should be displaying, but the rest of the screen doesn't refresh.
This doesn't happen when the vesafb is disabled. I have an NVIDIA TNT2 graphics card (the driver doesn't seem to help, tried both), on an Athlon processor.
My boot parameters (/boot/grub/menu.lst):
Quote:
title Debian GNU/Linux, kernel 2.6.8-felipe
root (hd0,4)
kernel /boot/vmlinuz-2.6.8-felipe root=/dev/hda5 ro vga=0x317 video=vesafb:ywrap,mtrr
initrd /boot/initrd.img-2.6.8-felipe.splash
savedefault
boot
I have tried leaving out the video parameter, but it doesn't seem to solve the problem. The documentation for the vesafb (in the source tree) mentions ypan as an alternative to ywrap, but it doesn't seem to fix it (the other option is redraw, but it is the default, so I didn't explicitly test it).

Any help would be greatly appreciated.

PS: If someone know a program to take screenshots outside of X, please let me know so I can provide some decent output.
 
Old 11-17-2004, 07:43 PM   #2
Ghost_runner
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try shift+ctrl+pageup if you use just the arrows, it should show your last command line.

did you try just video=fb
 
Old 11-18-2004, 12:02 PM   #3
fsateler
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Just tried video=fb, the result is the same. ctrl+shift+PageUp doesn't seem to do anything special either. I can't find the source of the problem... perhaps some kind of incompatibility between the fb and my video card?
 
Old 11-18-2004, 05:41 PM   #4
Ghost_runner
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could very well be, does everything work out in X? if so, then try launching rxvt transparently over a slim x like icewm or fluxbox just for doing console stuff. It's a hack, but it may work for you.
 
Old 11-22-2004, 01:38 PM   #5
fsateler
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On X everything works fine. I could try what you say, but it would pretty much defeat the purpose of using the console (not being inside X).
 
Old 12-05-2004, 07:48 PM   #6
Ghost_runner
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have you ever tried it with the line just

video=vesafb

instead of
video=vesafb:ywrap,mtrr
 
Old 12-10-2004, 07:49 PM   #7
fsateler
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Yes, I tried that. It doesn't help.
 
  


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