X-Authentication-Warning: delorie.com: mailnull set sender to djgpp-bounces using -f Newsgroups: comp.os.msdos.djgpp Subject: Strange interaction of Allegro and XP? From: Neo 1061 Organization: Geeks Anonymous Message-ID: User-Agent: Xnews/5.04.25 Lines: 25 Date: Sat, 11 May 2002 03:00:36 GMT NNTP-Posting-Host: 216.254.210.200 X-Complaints-To: news AT primus DOT ca X-Trace: news.tor.primus.ca 1021086036 216.254.210.200 (Fri, 10 May 2002 23:00:36 EDT) NNTP-Posting-Date: Fri, 10 May 2002 23:00:36 EDT To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Allegro and Winblows XP don't seem to always get along very well. An Allegro-using console app is run that instantiates a 1024x768x256 video mode and begins to draw lines at a constant rate. A short while passes, maybe two minutes, and the line it's drawing halts, which isn't supposed to happen. Turns out the machine is locked hard. No response to keyboard, and so forth. Even num lock doesn't make the light toggle. A hard reboot is required. The app in question *only* invoked the video. It did get the mode successfully; it did not hook the keyboard interrupt or do anything else that could explain this. Any idea what triggered it? It probably is irrelevant, but another app (ICQ, apparently in response to network activity) played a sound right before the hang. (It should not matter, since the Allegro app made no attempt to use the sound card itself.) I'm guessing some weird interaction of device drivers, perhaps the sound card and video, but I'd imagine if there were a conflict of that sort, Quake 2 would provoke it, but it works perfectly (aside from the screen being very dark even at max gamma -- something about this GeForce 2 card I suppose)