Date: Tue, 04 Aug 1998 08:04:28 +0100 From: Brian Somers <brian@Awfulhak.org> To: Brian Somers <brian@Awfulhak.org> Cc: Randy Philipp <cphilipp@pop500.gsfc.nasa.gov>, Doug White <dwhite@resnet.uoregon.edu>, Greg Lehey <grog@lemis.com>, freebsd-mobile@FreeBSD.ORG, freebsd-ports@FreeBSD.ORG Subject: Neomagic chipset - is it a hardware problem ? Message-ID: <199808040704.IAA25263@awfulhak.org> In-Reply-To: Your message of "Sat, 25 Jul 1998 21:32:52 BST." <199807252032.VAA00175@awfulhak.org>
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I've found out more about this flickering problem.... it only occurs when the laptop is physically warm - the warmer, the more flickering. If the machine sleeps for ~15 minutes, it'll wake up with a perfect picture and that picture will start to deteriorate with the building heat. If I switch the display off for 15 minutes it makes no difference. This is all under load. If the machine is idle it lasts a lot longer (the fan is more effective I guess....) Has anyone else seen this problem ? I'm pretty much convinced that it's a hardware problem now, so I'll probably return the machine (second time) nearer the end of the week. Cheers. > [.....] > > As for sending you my binary, I would like to test it myself before > > I start giving it out to people. > > I've built this driver into XF86_SVGA (albeit with all the other > drivers too - rather than just ``generic'') and I can get X up at 16 > bits in 800x600, *but* I get a lot of horizontal lines across my > screen - kind of like a huge thin horizontal smear (it's not there > when an empty xterm takes up the entire screen, but when I add some > text, I start getting the lines). > > I've tried changing the Frequency from 40.0 - to no avail. This has > obviously got nothing to do with it. > > I know very little about X - perhaps someone can say ``Ahh, those > horizontal lines are because....'' (and fill in the ....) ? > > FWIW, the text in the xterm is crystal clear at 16 bpp, but the > characters are like blobs of mud at 8 bpp. > > > -------------------- > > Randy Philipp > > cphilipp@pop500.gsfc.nasa.gov > > -- > Brian <brian@Awfulhak.org>, <brian@FreeBSD.org>, <brian@OpenBSD.org> > <http://www.Awfulhak.org>; > Don't _EVER_ lose your sense of humour.... To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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