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Bug#175911: XFree86 support for Matrox G550 seems to be broken.



retitle 175911 xserver-xfree86: [mga] wrong modeline being sent to monitor on MGA G550 AGP rev 1
thanks

On Thu, Jan 09, 2003 at 03:12:30PM +1100, Stuart Lamble wrote:
> On Wed, Jan 08, 2003 at 10:30:22PM -0500, Branden Robinson wrote:
> > tag 175911 + moreinfo
> > retitle 175911 xserver-xfree86: [mga] server choosing bad modelines on G550
> > severity 175911 normal
> > thanks
> 
> Up to you -- but it does make the out-of-the-box configuration unusable for
> me (which is why I marked it "important".)

Once we have the exact situation nailed down I may agree with you.

> Bwa? If XFree86 is somehow programming the adapter to a mode that is outside
> the monitor's limits, when I have explicitely told XFree86 what my monitor's
> acceptable limits are, then it is a bug in XFree86. No more, no less.

Quite possibly, which is why I haven't closed the bug.

> > Hmm.  30-95 and the X server didn't toss a modeline with an hsync
> > requirement of 114.5 kHz?
> 
> That's exactly what I thought. The figures there are exactly those supplied
> by HP for this monitor -- no more, no less.

According to your logfile, the mode you're using is:

> (**) MGA(0): Default mode "1280x1024": 157.5 MHz, 91.1 kHz, 85.0 Hz
> (II) MGA(0): Modeline "1280x1024"  157.50  1280 1344 1504 1728  1024 1025 1028 1072 +hsync +vsync

I'm not sure what's going on here.

-- 
G. Branden Robinson                |     It's not a matter of alienating
Debian GNU/Linux                   |     authors.  They have every right to
branden@debian.org                 |     license their software however we
http://people.debian.org/~branden/ |     like.  -- Craig Sanders

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