lkml.org 
[lkml]   [2005]   [Nov]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] vgacon: Workaround for resize bug in some chipsets
Samuel Thibault wrote:
> Antonino A. Daplas, le Sun 13 Nov 2005 22:33:18 +0800, a écrit :
>> Samuel Thibault wrote:
>>> Antonino A. Daplas, le Sun 13 Nov 2005 06:20:53 +0800, a écrit :
>>>> "I updated to the development kernel and now during boot only the top of the
>>>> text is visable. For example the monitor screen the is the lines and I can
>>>> only see text in the asterik area.
>>>> ---------------------
>>>> | **************** |
>>>> | * * |
>>>> | * * |
>>>> | **************** |
>>>> | |
>>>> | |
>>>> | |
>>>> ---------------------
>>> Are you missing some left and right part too? What are the dimensions of
>>> the text screen at bootup? What bootloader are you using? (It could be a
>>> bug in the boot up text screen dimension discovery).
>> It was just the height. All numbers (done with printk's) look okay from
>> bootup. He gets 80 and 25 for ORIG_VIDEO_NUM_COLS and ORIG_VIDEO_NUM_LINES
>> respectively.
>
> And you got less than 25 lines? How many exactly?

If the original size was at 80x25, and vgacon_doresize() was called, the
the resulting screen is only 80x12.5. The 13th line has its bottom half
chopped off, and the rest of the lines (14-25) is invisible.

If he sets it at < 25, he gets a window much smaller than 12.5, but he did
not specify. So my guess is his chipset programs the screen height by 1/2
of the value of the requested rows.

Tony
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-11-14 00:42    [W:0.062 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site