Strange video mode output with VESA

[David DEMELIER]

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 :-

-- 
Demelier David