Re: Radeon support (was Re: (no subject))

[Adam K Kirchhoff <adamk@voicenet.com>]

Well, I finally got it working...  I had to use the radeon framebuffer
code that's distributed with mplayer, though :-)

Adam

On Thu, 8 Aug 2002, Adam K Kirchhoff wrote:

>
> Alright, so I did some more testing this morning...  I tried the exact
> same modes, with the exact same monitor, first hooked up to the VGA port
> and then hooked up to the DVI port of my Radeon 7500...  All but two of
> the modes were taken from the fb.modes file supplied by the DirectFB
> project.  *None* of the following modes (all at 16 bit) worked with the
> VGA port:
>
> 640x480 75Hz
> 800x600 75Hz
> 1024x768 72Hz
> 1280x1024 60Hz
> 1600x1200 60Hz
>
> All of the above worked (again, with the *same* monitor) hooked up to the
> DVI port.
>
> The two modes that *did* work with the VGA port were modes that I
> specified to the kernel when booting (they were not taken from fb.modes):
>
> 1024x768 70Hz
> 640x480 60Hz
>
> Also, it makes no difference if I use one of the unsupported modes from
> the list of five above with fbset or when the kernel boots...  In both
> situations, the display just blanks, as if it's either: A) getting no
> signal, or B)  getting sent to a frequency it doesn't support.
>
> Does *anyone* know what's going on and how to fix this?
>
> Adam
>
> On Wed, 7 Aug 2002, Adam K Kirchhoff wrote:
>
> >
> > Me again,
> >
> > 	So I think I might have a better idea of what's going on... I did
> > some testing with the Radeon framebuffer tonight, and can only seem to get
> > it to work with just two modes: 1024x768@70 and 640x480@60.  I've tried a
> > number of others, which worked with the DVI output of my 7500, but don't
> > seem to work with the VGA port of the card.
> >
> > 	Any ideas?
> >
> > Adam
> >
> > On Tue, 6 Aug 2002, Adam K Kirchhoff wrote:
> >
> > >
> > > Ani and others :-)
> > >
> > > 	I 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.
> > >
> > > 	I'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".
> > >
> > > 	So 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.
> > >
> > > 	Can anyone help me out?  Thanks :-)
> > >
> > > Adam
> > >
> > > ---------- Forwarded message ----------
> > > Date: Tue, 6 Aug 2002 12:51:24 -0400 (EDT)
> > > From: Adam K Kirchhoff <adamk@voicenet.com>
> > > To: "[iso-8859-1] Ville Syrjälä" <syrjala@sci.fi>
> > > Cc: directfb-devel <directfb-dev@directfb.org>
> > > 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
> > >
> > >
> > >
> > >
> > >
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> > >
> > >
> >
> >
>
>
>
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>



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