Re: [PATCH] vgacon: Workaround for resize bug in some chipsets

[Samuel Thibault]

Hi,

Jason Dravet, le Tue 15 Nov 2005 19:50:39 -0600, a écrit :
> Here are the results:
> y=25   fonth=16   deffh=16   vidfh=16   scanl=400
> overflow=ff
> vsync_end=8f
> vdisp_end=1f

Ah, this is odd indeed: your hardware uses 800 scanlines
(overflow:(512+256)+vdisp_end:0x1f), while the actual needed lines
should be y:25*fonth:16 ... Maybe it is actually using a 32 lines font.

Just to make sure about every VGA bits, could you install the
svgatextmode package, which holds a getVGAreg command, and run twice

for i in `seq 0 24` ; do getVGAreg CRTC $i ; done

The first time while having a correct full text screen rendering, and
the second time after vgacon_doresize() has blanked the bottom half of
the screen.

Regards,
Samuel
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