From owner-freebsd-questions Sun Nov 5 03:07:03 1995 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id DAA28575 for questions-outgoing; Sun, 5 Nov 1995 03:07:03 -0800 Received: from casparc.ppp.net (casparc.ppp.net [194.64.12.35]) by freefall.freebsd.org (8.6.12/8.6.6) with SMTP id DAA28568 for ; Sun, 5 Nov 1995 03:07:01 -0800 Received: from ernie by casparc.ppp.net with uucp (Smail3.1.28.1 #1) id m0tC2pv-000I1MC; Sun, 5 Nov 95 12:02 MET Received: by ernie.altona.hamburg.com (Smail3.1.29.1 #3) id m0tC2TY-00001PC; Sun, 5 Nov 95 11:38 MET Message-Id: From: hm@altona.hamburg.com (Hellmuth Michaelis) Subject: Re: PCVT losing sync? To: wsantee@wsantee.oz.net (Wes Santee) Date: Sun, 5 Nov 1995 11:38:56 +0100 (MET) Cc: questions@freebsd.org In-Reply-To: <199511042032.MAA05966@wsantee.oz.net> from "Wes Santee" at Nov 4, 95 12:32:09 pm Reply-To: hm@altona.hamburg.com X-Mailer: ELM [version 2.4 PL24] Content-Type: text Content-Length: 1676 Sender: owner-questions@freebsd.org Precedence: bulk >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 ?