Xorg 7.4 breaks mga with G450

[Robert Noland]

On Mon, 2009-01-26 at 16:23 -0700, Warren Block wrote:
> On Mon, 26 Jan 2009, Robert Noland wrote:
> 
> > On Mon, 2009-01-26 at 10:04 -0700, Warren Block wrote:
> >> On Sun, 25 Jan 2009, Robert Noland wrote:
> >>
> >>> On Sun, 2009-01-25 at 22:50 +0000, Mark Knight wrote:
> >>>> Hi,
> >>>>
> >>>> I've been using the same PC with a Matrox G450 on AGP with a trusty old
> >>>> iiyama CRT monitor (Vision Master pro 410) for years.  System is running
> >>>> FreeBSD 6.4-RELEASE-p1
> >>>>
> >>>> Having just upgraded to Xorg 7.4 from 7.3 and following the instructions
> >>>> in UPDATING I cannot get a stable picture.
> >>>>
> >>>> Using my stock xorg.conf (see below), or a brand new config version
> >>>> created by "Xorg -configure" I get an extremely noisy (but stable) image
> >>>> if I lower resultion from my normal 1280x1024 to 1027x768.  At the
> >>>> standard resolution the monitor is unable to sync.
> >>>>
> >>>>    http://www.knigma.org.uk/scratch/Xorg.0.log
> >>>>    http://www.knigma.org.uk/scratch/xorg.conf
> >>>>
> >>>> I've tried with and without DDC and with and without
> >>>> HorizSync/VertRefresh and with and without SyncOnGreen (my monitor has
> >>>> always product a slightly sharper picture with the latter).
> >>>>
> >>>> Any ideas?
> >>>
> >>> I think your on the right track... It sounds like the mode calculation
> >>> is off...  I won't have access to mga hardware before next weekend, but
> >>> even then mine is connected to a panel.
> >>
> >> My G450 does the same (sync problem/noisy picture) on an LCD.
> >> mga-1.4.9 does it too, so I'd suspect a change in xorg-server.
> >
> > I just discovered an issue... Can you forcibly rebuild the 1.4.9 driver
> > against the new server and see if that works?
> 
> Not being sure what you mean by "forcibly".  I have a copy of mga-1.4.9 
> and mga-1.9.100 in /usr/ports/x11-drivers in addition to the current mga 
> (1.9.100).  I've been deinstalling (and cleaning) one before 
> installing the other.

Ok, that is disappointing...  There are a few patches in git from
matrox, but they all appear to be related to g200.

robert.

> -Warren Block * Rapid City, South Dakota USA
> 
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