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- Path: sparky!uunet!mcsun!news.funet.fi!hydra!klaava!wirzeniu
- From: wirzeniu@klaava.Helsinki.FI (Lars Wirzenius)
- Newsgroups: comp.os.linux
- Subject: Re: Vertical Retrace signal?
- Message-ID: <1992Sep15.212805.26777@klaava.Helsinki.FI>
- Date: 15 Sep 92 21:28:05 GMT
- References: <chrisl.3.716503881@county.lmt.mn.org>
- Organization: University of Helsinki
- Lines: 12
-
- chrisl@county.lmt.mn.org (Chris Laurel) writes:
- >Does anyone know of a good way to watch for vertical retrace in Linux? Is
- >there a signal or interrupt can be trapped? I imagine that a kernel patch
- >would be required in order to catch the VR, but any leads would be
- >appreciated.
-
- I can't answer your question, but I'll ask you a question: why do you
- need this? Do you really need access to the video hardware, or do you
- just want a convenient timing device?
-
- --
- Lars.Wirzenius@helsinki.fi
-