Re: iBook2 video niggles
On Wed, 2001-10-17 at 15:08, Adrian Cox wrote:
> 1) When X blanks the display, it doesn't turn the backlight off. My
> current suspicions point at this line in the X startup output:
> (WW) R128(0): Option "DPMS" is not used
>
> A little searcing suggests this is a long standing problem with X only
> doing DPMS when it is talking to a monitor, and having no way of
> communicating the equivalent to a panel.
Correct. The solution for us would be to use the kernel backlight
control, AFAIK Ani Joshi is taking care of this for 4.2.0 .
> 2) When I reduce the display resolution the display is reduced to the
> top-left, and surrounded by garbage. I suspect the frame buffer driver
> is missing something to enable the scaling hardware in the chip.
Correct. The X server driver can basically do it if you don't use Option
"UseFBDev", but not correctly either because we don't have an equivalent
for a video BIOS providing the necessary information.
About the DGA thing: DGA has to be one of the most useless and
incorrectly used extensions. If xmame doesn't work without it, I'd
consider it broken.
--
Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
XFree86 and DRI project member / CS student, Free Software enthusiast
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