Date: Tue, 24 Nov 1998 18:37:41 -0500 (EST) From: Brian Feldman <green@unixhelp.org> To: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> Cc: current@FreeBSD.ORG Subject: Re: video mode switching has gone south Message-ID: <Pine.BSF.4.05.9811241834110.445-100000@janus.syracuse.net> In-Reply-To: <199811241703.CAA21858@zodiac.mech.utsunomiya-u.ac.jp>
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On Wed, 25 Nov 1998, Kazutaka YOKOTA wrote: > > > It seems (nay, it IS so) that video mode switching has gotten extremely > >strange within the last few days. This is not a problem just with vidcontrol > >and syscons, this affects XFree86 as well. I've got two kernels, the old one > >which does not exhibit this problem, and the new one which does. > > > >Working: > > FreeBSD 3.0-CURRENT #3: Sun Nov 22 21:45:52 EST 1998 > >Broken: > > FreeBSD 3.0-CURRENT #4: Mon Nov 23 20:11:02 EST 1998 > [...] > > Video mode switching is defined as "any video mode changing, including > >resolution changing and switching between non- and graphical screen modes," so > >affects X and syscons. An example of what previously happened: > > > >00:00 I type "xmame wb3bl", for example, which uses Xxf86dga > >00:01 xmame initializes, attempts to switch to 320x240 > >00:02 screen blanks > >00:03 320x240 screen pops up, then blanks > >00:04 game shows up > >15:07 I get bored and press escape > >15:08 screen switches back to 1280x1024 > > > > In the newer kernel (more or less, my memory might not be great): > > > >00:00 I type "xmame wb3bl", for example, which uses Xxf86dga > >00:01 xmame initializes, attempts to switch to 320x240 > >00:02 screen blanks > >00:05 1280x1024 screen pops back up, garbled > >00:07 screen blanks > >00:09 1280x1024 screen pops back up > >00:12 screen blanks > >00:17 320x240 screen pops up > >00:19 screen blanks > >00:23 game shows up > >01:40 I press escape because now I'm bored of this game and FreeBSD is being > > annoying > >01:41 screen blanks > >01:45 1280x1024 screen pops back up garbled > >01:46 screen blanks > >01:48 screen is back to normal > > > > If anyone has any ideas why any of this is happening now, I'd like to hear > >any possible explanations. > > Video mode switching in the X session is completely managed by the X > server. The kernel and syscons are not in any way involved. > > Which version of XFree86 are you using? > > Do you see any problems outside the X as well? Do you see garbled or > blank screen when you try to change video mode via vidcontrol? > > Kazu > > I thought that the server managed all video access, but what does it say when one kernel works, and one the next day doesn't work right? And this is supposed to be managed by X server, at the hardware- ish level... very strange, isn't it? XFree86 3.3.2.3 plus Xtt is what I'm running. Brian Feldman _ __ ___ ___ ___ green@unixhelp.org _ __ ___ | _ ) __| \ http://www.freebsd.org/ _ __ ___ ____ | _ \__ \ |) | FreeBSD: The Power to Serve! _ __ ___ ____ _____ |___/___/___/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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