[Linux-fbdev-devel] (no subject)

[Adam K K. <ad...@vo...>]

Ani and others :-)

=09I was hoping you could lend me some insight :-)  I'm trying to do
some work with DirectFB, and I'm now running into a slight problem
concerning getting output on the VGA port.

=09I've e-mailed the directfb-dev mailing list about it and had some
interesting conversations, but the end result was basically: "You should
check with Ani Joshi about that, and maybe ask on the linux-fbdev-devel
mailing list".

=09So now I'm asking here :-)  Below this I'm including the
description of the problem I'm seeing that I sent to the directfb-dev
mailing list.

=09Can anyone help me out?  Thanks :-)

Adam

---------- Forwarded message ----------
Date: Tue, 6 Aug 2002 12:51:24 -0400 (EDT)
From: Adam K Kirchhoff <ad...@vo...>
To: "[iso-8859-1] Ville Syrj=E4l=E4" <sy...@sc...>
Cc: directfb-devel <dir...@di...>
Subject: Re: [directfb-dev] Re: Radeon support...


> I'm getting really confused as to what's going on... What exactly happens
> when you run a DirectFB application?

It took me a while to figure it out what I know so far, and I'm still not
100% sure what's going on...

If I run *any* DirectFB application, the screen blanks.  The system
doesn't lock.  I can ssh in and see the application listed in the process
table.  For example, running df_fire, the screen blanks and, after a few
seconds, the monitor goes to sleep (as if it's no longer getting a
signal)...  Hitting the 'esc' key brings back the vt, just as usual when
runnin the application.

Running dfbsee produces similar results.  However, with any video that I
play, I can hear the audio stream :-)  I just can't see anything...

Now, when I first experienced this, I posted about it on either
directfb-dev or directfb-user.  A short while later, I figured out a
workaround :-)

Instead of booting with my CRT plugged into the VGA port, I used a
DVI-to-VGA adapter (that came with my Radeon 7500), and plugged the
monitor into the DVI-A port.  Lo' and behold, DirectFB applications were
now showing up :-)

Since then I've done some video card swapping and now have a "Powered By
ATI" Radeon 8500 LE.  This card has both a VGA port and a DVI-D port, but
no adapter.  The old adapter doesn't work for this card because it's
designed for DVI-A as compared to DVI-D.

I've encountered similar problems elsewhere, too.  For example, a hacked
radeon 7500 driver for BeOS would only display on the DVI port, even if
the computer booted up fine with a monitor on the VGA port.

Of course, I just don't know why this is the case :-)

I've been poking around on-line looking for a DVI-D to VGA adapter, but
very few of the shops that sell them on-line clarify if it's DVI-A or
DVI-D :-)

Adam