USB to VGA

Martin Langhoff martin.langhoff at gmail.com
Mon Dec 20 22:13:58 EST 2010


On Mon, Dec 20, 2010 at 4:53 PM, Hal Murray <hmurray at megapathdsl.net> wrote:
> The pixel count is only a factor of 3.  Is it just slow or does something
> else happen?

"Only" a factor of 3 on a bandwidth limited bus. Joy!

>From the original author's page
http://web.archive.org/web/20080115062327/www.winischhofer.net/

Display modes and color depths: The driver has a number of default
built-in modes up to 1280x1024. Although it is possible to add more
modes (with higher resolutions) using Modelines and to use all modes
at 24bpp color depth, this is not recommended. USB, although
surprisingly fast, has its speed limit. I use the driver with 1024x768
at 16bpp and this is usable. Higher resolutions, large virtual screens
and/or higher color depths severely decrease performance.



m
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