From: flupke Newsgroups: comp.os.msdos.djgpp Subject: Re: Nice Jerky Scrolling Date: Mon, 30 Aug 1999 02:25:21 +0200 Organization: Club-Internet (France) Message-ID: <37C9CF71.4A8BA3CA@club-internet.fr> References: <7qb0c3$bus$1 AT news7 DOT svr DOT pol DOT co DOT uk> NNTP-Posting-Host: toulon-2-106.club-internet.fr Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: front7.grolier.fr 935974136 11837 195.36.182.106 (30 Aug 1999 00:48:56 GMT) NNTP-Posting-Date: 30 Aug 1999 00:48:56 GMT X-Mailer: Mozilla 4.06 [en] (Win98; I) Lines: 19 To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Ghalos wrote: > I have Allegro and I am using the infinite horizontal scrolling technique > (ie. writing new column, moving viewport and writing column behind as well) > and it seems to work fin except that when scrolling the screen in 320x240 > using scroll() the screen occasionally jerks back then forwards again for no > reason.... I have tried VSynching but it doesn't help..... > > Any thoughts? thanks, > > -- > Ghalos - greg AT holdridge7 DOT freeserve DOT co DOT uk I have a matrox mystique and a millenium and both have the same problem when scrolling in VESA modes... The display doctor's readme reffers this as an 'unresolved hardware bug' (?)