Re: A way to smoothly overgive graphics control to an otherprocess/program

[Måns Rullgård]

Dennis Heuer <dh@xxxxxxxxxxxxxxxx> writes:

> Hello,
>
> I feel disturbed by the fact that when display-controlling programs
> are started in line (like the bootloader, linux, and finally
> xdm/gdm/kdm), there appear several switches of display resolution,
> text- and graphics mode, and background images. I asked myself how to
> get that more smooth as if there was only one presentation from the
> time the bootloader started up to the gnome/kde session. I thought
> that one could implement a small api that allows a running process to
> freeze display updates until the next process has overtaken the
> display, loaded the same presentation (from same location or just by
> similar configuration), dumped it to the working buffer of the
> graphics card, and released the display (a timeout with fallback-mode
> could make this transaction more fault-resistent). This way, the image
> loaded by the bootloader could be held on display up to the graphical
> login, and even as the
>   desktop background, without any visible effect.
>
> Is this technically feasible?

It's technically pointless.  Take a look at bootsplash, though.

-- 
Måns Rullgård
mru@xxxxxxxxxxxxx

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