Date: Wed, 15 Jan 1997 03:00:01 -0800 (PST) From: mmcg@heraclitus.cs.monash.edu.au To: freebsd-bugs Subject: Re: i386/2485: 2.2-BETA (install) device probe appears to screw screen Message-ID: <199701151100.DAA21729@freefall.freebsd.org>
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The following reply was made to PR i386/2485; it has been noted by GNATS. From: mmcg@heraclitus.cs.monash.edu.au To: freebsd-gnats-submit@freebsd.org, mmcg@heraclitus.cs.monash.edu.au Cc: Subject: Re: i386/2485: 2.2-BETA (install) device probe appears to screw screen Date: Wed, 15 Jan 1997 21:50:46 +1100 (EST) SUGGESTION: Add a boot switch to bring up syscons in non-graphic (i.e. pre-2.2) mode. I've looked at the new syscons driver, and noticed that it now tries to place the card in graphics mode to drive the standard virtual consoles. So, I put the card in another machine (which usually has a Diamond stealth 64, and which has no screen problems when installing or running 2.2-BETA). The same visual breakup happened when the console was initialised by 2.2-BETA (i.e. *after* exiting config and seeing a few lines scroll past) on the other machine. It's as if the dot clock has been mis-programmed or something. Conversely, the Stealth 64 worked smoothly under 2.2-BETA in each machine. I then fired up Xfree86; a similar looking breakup occurred (in that there were vertical lines, but this time several bands of them; I presume it was just the different video mode). >tools (aka `games') identify it as a paradise PVGA1a. It's definitely *not* any sort of paradise card; presumably, it is new enough that the other probes got it wrong (shows what I know :) I have no idea what brand this board is. Here's what's on it: An ARK1000VL chip (S3 compatible, according to the net). An ARK1491 chip (ramdac? clock chip?) Xfree's SuperProbe reports `VGA (or unknown SVGA) video card detected'. I may be able to track it using its FCC approval from www.fcc.gov (FCC: ICUVGA-GW405) - the site appears broken right now. Soooo: it's definitely the video card itself, and it happens when programs which assume it is a standard VGA try to put it into graphics mode. DOS programs work fine, and can use the good graphics modes (even those that misreport it as a paradise vga1a). I do not know about win95.
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