Article View: comp.sys.next.software
Article #23Re: HELP: DSP Not Responding
From: Gerry Key
Date: Wed, 28 Oct 1992 16:48
Date: Wed, 28 Oct 1992 16:48
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Thanks to all who responded to my inquiry as to why the DSP might have suddenly stopped working on my NeXTStation Turbo Color running NeXTStep 2.2. From the number of people who responded, it appears this is not an uncommon occurrence. I am therefore posting a follow-up. The answer as to what went wrong is that if you load the CD-ROM TOOLS upgrade preparation diskette that comes with the NeXTStep 3.0 upgrade kit, it installs a new kernel. Most NeXT apps continue to work OK, but the DSP is one that breaks. Some people told me they also found their printer was reporting it was out of paper, the system crashed when they tried to copy a file from a DOS diskette, and other forms of aberrant behavior after loading the CD-ROM TOOLS diskette. Why, you might ask, would one run the CD-ROM TOOLS if you weren't going to complete the upgrade at that time? The fundamental answer is that you are given no warning it's going to install a new kernel. Most respondents said they were just curious. They clicked on the icon, were at little startled to see the "Installing kernel ..." message, then stopped when they were asked if they wanted to proceed to actually perform the installation of NeXTStep 3.0. Since everything seems to still work OK, they weren't too concern. Then they started to notice there was no sound, etc. In our case, we were trying to upgrade from the NeXTStep 3.0 CD in a CD player connected to a Sun on our net. We ran the CD-ROM TOOLS diskette to get at the NeXT CD tools so we could see if we could read the CD (we couldn't, and finally gave up and connected the player directly to the NeXT). There are apparently two solutions. The one we used was to complete the NeXTStep 3.0 installation. The other, which was suggested to me by several respondents but which we didn't try, is to copy /odmach to /sdmach and reboot. I spoke to NeXT Technical Support on two separate occasions about this problem, and both technicians said they had no report of this behavior. They asked that I submit a bug report to NeXT, which I did. I haven't heard back from any of the NeXT systems engineers as to an official solutions. --Gerry Key Computer Sciences Corporation San Diego, CA Internet: key@csc.com (NeXTMail OK) FAX: 619.225.2583 Voice: 619.225.2504
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Newsgroups: comp.sys.next.software Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!agate!dog.ee.lbl.gov!news!manta!usenet From: key@blacksea.csc.com (Gerry Key) Subject: Re: HELP: DSP Not Responding Message-ID: <1992Oct28.164829.19815@nosc.mil> Keywords: DSP Sound Troubleshooting NeXTStep 3.0 CD-ROM Sender: usenet@nosc.mil (Network News) Organization: Naval Ocean Systems Center, San Diego, CA Date: Wed, 28 Oct 1992 16:48:29 GMT Lines: 44