Date: Fri, 28 Nov 2003 11:20:12 -0800 (PST) From: Andre Albsmeier <andre.albsmeier@siemens.com> To: x11@FreeBSD.org Subject: Re: ports/55699: [PATCH] making x11-servers/XFree86-4-Server able to use mga hal library Message-ID: <200311281920.hASJKCpL098707@freefall.freebsd.org>
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The following reply was made to PR ports/55699; it has been noted by GNATS.
From: Andre Albsmeier <andre.albsmeier@siemens.com>
To: freebsd-gnats-submit@FreeBSD.org, rehsack@liwing.de,
anholt@FreeBSD.org, eta@lclark.edu
Cc:
Subject: Re: ports/55699: [PATCH] making x11-servers/XFree86-4-Server able to use mga hal library
Date: Fri, 28 Nov 2003 20:10:30 +0100
The stuff in this PR works great apart from a small bug
(which is Matrox' fault, not Eric's). I have tested it with
the DVI-Output of a G550 and the TV-Out of a G400 which both
need the HAL in order to work.
I have also tested some configurations with the patched
version of the XFree86-4-Server port but without the HAL
binary installed. This also works perfectly as long as
no special HAL features are needed, of course.
Details:
========
Tested stuff which needs the HAL:
----------------------------------
G550 with DVI output: works
G400 with TV-Out only: works
G400 with monitor and TV-Out: fails, this is the bug
mentioned above, fix below
Tested stuff without the HAL but the patched XFree86-4-Server port:
-------------------------------------------------------------------
G550 with analog screen: works
G400 with analog screen: works
Millenium 2: works
Now the bug: The patch-mga_hal file contains the modifications of
the XFree86-4-Server port to "upgrade" the MGA driver to the
4.3.0 version shipped by Matrox in their mgadrivers-3.0-src.tgz.
It contains the following change for mga_driver.c:
@@ -2664,7 +2711,7 @@
pMga->pMgaModeInfo->ulTVStandard = TV_NTSC;
}
} else {
- pMga->pMgaModeInfo->ulRefreshRate = 0;
+ pMga->pMgaModeInfo->ulRefreshRate = 60;
pMga->pMgaModeInfo->ulTVStandard = TV_NTSC;
}
(You can find the same change when comparing version 4.2.1
with 4.3.0 contained in mgadrivers-3.0-src.tgz).
This code seems to be run for every head on the G400 and
rendered my 1280x1024 screen (attached to the first head)
unusable due to a vertical refresh head of 51 Hz. I don't
know why they set the default ulRefreshRate to 60 Hz on a
non TV screen but after removing this part of the patches
in patch-mga_hal everything worked again.
-Andre
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