Re: X screen wraps around
Alan Macdougall wrote:
>
> On 8/6/01 at 1:40 AM, Michel DSnzer <michdaen@iiic.ethz.ch> wrote:
>
> > Duncan Sands wrote:
>
> > > If I use more bpp then the screen image is
> > > displaced to the right, and wraps around onto
> > > the left of the screen. Having the left of a
> > > window on the right of the screen and the
> > > right of the window on the left of the screen
> > > makes my head hurt... However, having only
> > > 8bpp is a pain too. Can anyone suggest how I
> > > can have more colours and less head pain?
> >
> > Help fix the bug. ;^)
>
> I had similar problems on my 7600 w/. 15" Apple Multisync AV monitor
> having gotten XFree86 4.03 / fbdev to work - the wrap (only about 1.5 cm
> though) at what I thought was 8 bpp, and a really terrible pinkish hued
> display at what I thought was 16 bpp.
>
> This with kernel args in BootX of "video=controlfb:vmode:16,cmode:16".
>
> Turns out (after reading some of the debian-x list) that changing the
> "Default Depth" in the "Screen" section of the XF86Config-4 file from 16
> to 15 fixes *both* the wrap problem and the colour problem. (So I've
> now learned that bpp , depth.)
A lot of framebuffer devices are broken such that they only work correctly in
either depth 15 or 16, not both.
--
Earthling Michel Dänzer (MrCooper) \ Debian GNU/Linux (powerpc) developer
CS student, Free Software enthusiast \ XFree86 and DRI project member
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