Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sdd.hp.com!elroy.jpl.nasa.gov!ncar!gatech!prism!mailer.cc.fsu.edu!uflorida!travis!tom From: tom@ssd.csd.harris.com (Tom Horsley) Newsgroups: comp.sys.m88k Subject: X11R4 on AViiON and DGShm:0 Message-ID: Date: 14 May 91 16:58:37 GMT Sender: news@travis.csd.harris.com Organization: Harris Computer Systems Division Lines: 35 I just installed the upgrade to DG/UX 4.32 on my AViiON, and it comes with X11R4 (which is nice, the new server seems to run faster). The instructions say you can set your DISPLAY to DGShm:0 and R4 clients (linked with the DG libraries) will use a shared memory interface rather than a socket. At first, this would not work when I tried it (yes, I did configure a large enough max shared memory segment size into the kernel). I noticed a bunch of error messages flashing on the screen when I ran xstart, so I ran xstart re-directing stdout and stderr to a file and discovered one of the messages said "could not open /var/X11/DGShm/DGShm". I created an empty file with that name, and now DGShm:0 seems to work as a display device (although I don't notice it being any faster than unix:0). I read through all the release notes one more time, but I couldn't find any mention of /var/X11/DGShm/DGShm in any of them, and apparently the setup scripts do not create it (because I ran them). Is this file just a key? Do the libraries use the inode number of the file as the identifier for the shared memory segment or something like that? Is just creating an empty file named /var/X11/DGShm/DGShm really all I had to do? Is there really something missing from the release notes, or did I miss it? I am just curious. If anyone can answer the above questions, I would appreciate hearing from them. Thanks for any light you can shed on the mystery of DGShm:0... -- ====================================================================== domain: tahorsley@csd.harris.com USMail: Tom Horsley uucp: ...!uunet!hcx1!tahorsley 511 Kingbird Circle Delray Beach, FL 33444 +==== Censorship is the only form of Obscenity ======================+ | (Wait, I forgot government tobacco subsidies...) | +====================================================================+