vga16fb display size problems (Re: Live CD X autoconfiguration)

[Daniel Stone]

On Wed, Jan 19, 2005 at 12:42:52PM +0000, Matthew Garrett wrote:
> On Wed, 2005-01-19 at 12:18 +0000, Paul Sladen wrote:
> > On Wed, 19 Jan 2005, Marcus Bauer wrote:
> > > On Wed, 2005-01-19 at 11:04 +0000, Colin Watson wrote:
> > > > > Well, we /know/ that on some hardware vga16fb looks like rubbish while
> > > > > vesafb works (hurrah for the craptop).
> > 
> > In what particular way is either vesafb/vga16fb ''looking rubbish''?
> 
> Modprobing vga16fb on the craptop results in a heavily distorted display
> - vertical lines are skewed to about 30 degrees, and offset sufficiently
> that the picture is unreadable.

Right ... IIRC that's not setting the pitch or stride correctly, usually.  Which
means they just haven't bothered to program the LVDS output correctly with VGA.
It probably works just fine with CRT.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: Digital signature
Url : http://lists.ubuntu.com/archives/ubuntu-devel/attachments/20050120/aa0c0558/attachment.pgp