From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <525359b472178cd3ba2aa6417393ab32@plan9.bell-labs.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] disabling the cursor
From: "Russ Cox" <rsc@plan9.bell-labs.com>
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Date: Mon,  2 Dec 2002 08:16:45 -0500
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> I have a machine here. I haven't installed it, but vgactl says it has
> a mach64xx and isn't using hw blanking. In it the hw cursor keeps
> showing even though the screen is blank. (the monitor is a CRT). I
> have seen it before in a SuperSavage (LCD panel), don't know in which
> conditions, and other machines.

Right, if the card isn't using hw blanking, then the
cursor will remain on the screen.  We actually thought
that was nice, when it happened, because it was a good
indicator that the monitor wasn't really off.

If you want to turn the cursor off, the right place to
do it is /sys/src/9/port/devdraw.c:/^drawblankscreen,
rather than in the various VGA drivers.

Russ