Date: Sun, 5 Nov 1995 11:38:56 +0100 (MET) From: hm@altona.hamburg.com (Hellmuth Michaelis) To: wsantee@wsantee.oz.net (Wes Santee) Cc: questions@freebsd.org Subject: Re: PCVT losing sync? Message-ID: <m0tC2TY-00001PC@ernie.altona.hamburg.com> In-Reply-To: <199511042032.MAA05966@wsantee.oz.net> from "Wes Santee" at Nov 4, 95 12:32:09 pm
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>From the keyboard of Wes Santee:
> Every once-in-a-while when I'm switching back and forth between
> X-Windows on ttyv3, and my text terminals on ttyv0-ttyv2, I'll switch
> to a text terminal and the screen will turn into a bunch of horizontal
> lines. Makes it look like the screen is in perpetual strikeout mode
> and all the characters have disappeared. I try switching back to X,
> then back to each of the text screens, but it doesn't change. I try
> using scon to reset the screen, no go.
>
> I know commands are still working because I can see the cursor move
> accordingly as I type, I just can't see what I'm typing. To date, the
> only solution has been to pop over to an xterm and shutdown the
> system...not the preferred method.
>
> Anybody know a way to tell PCVT to reset itself?
It is not pcvt who does the switch but the X server. The knowledge about
what to do to switch from a virtual screen running an X server to a virtual
screen running a character terminal and vice versa is located in the X server.
Same for the data structures. Since pcvt does not know ANYTHING about the
particular video mode the X server is using (and with programmable video clock
generators the situation gets even more worse), it is not able to reset
the video mode.
It looks like the X server has a problem with your chipset/clockgenerator or
your hardware has a timing problem, perhaps you should get in contact with
the Xfree86 team.
Just curious, what type/brand of video card do you have ?
hellmuth
--
Hellmuth Michaelis hm@altona.hamburg.com Hamburg, Europe
(A)bort, (R)etry, (I)nstall BSD ?
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