Strange video mode output with VESA

[Jung-uk Kim]

On Friday 16 July 2010 03:00 pm, David DEMELIER wrote:
> 2010/6/19 paradox <ddkprog at yahoo.com>:
> >>On Wednesday 02 June 2010 04:25 pm, David DEMELIER wrote:
> >>> Hi there,
> >>>
> >>> I was so happy to see that VESA is available for amd64, but
> >>> unfortunately it does not work really well for me. Take a look
> >>> at this picture :
> >>>
> >>> http://img717.imageshack.us/img717/7311/dsc00399h.jpg
> >>>
> >>> My laptop is a 15,6" so the best resolution is 1366x768, I
> >>> tried this
> >>>
> >>> : vidcontrol MODE_496. As you can see on the picture all the
> >>> : lines are
> >>>
> >>> completely everywhere, if I mouse the cursor they move away
> >>> (I'm not drunk!).
> >>>
> >>> I have SC_PIXEL_MODE in my kernel config.
> >>>
> >>> The console terminal is okay until I don't excess 1280x960x32
> >>> video mode.
> >>>
> >>> Do you have any idea to fix this ?
> >>
> >>It is kinda known problem. ��If the mode has larger bytes per
> >> scan line than the minimum, few characters per line are lost
> >> when the screen is scrolled up or down, i.e., framebuffer copies
> >> of whole screen. ��When you move the mouse onto the line, entire
> >> line is redrawn and restored. ��That's what you are seeing. ��Ed
> >> might have a better idea how to fix it (CC'ed).
> >>
> >>Jung-uk Kim
> >
> > this is incorrent calculate the scan lines in the vesa driver
> > Jung-uk Kim should to fix it
>
> But Jung-uk Kim said Ed' should fix it so we are in an infinite
> loop :-

No, I didn't say that.  What I meant was "Ed may be a better qualified 
person to fix syscons vs. terminal emulator interaction issues." :-(

Jung-uk Kim