This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Chris, Apparently your system administrator reconfigured your X server for a default visual to be TrueColor. Your xdpyinfo shows that the default visual is 0x28 and thie corresponds to: visual: visual id: 0x28 class: TrueColor depth: 24 planes available colormap entries: 256 per subfield red, green, blue masks: 0xff, 0xff00, 0xff0000 significant bits in color specification: 8 bits The default visual must be an 8 bit pseudocolor display for Gempak. Rebooting your computer cuased this change for the X server to take effect. The NIDS and NOWRAD data available through WSI is through direct connection from them for a fee- unlike the ACARS stream, the NIDS data is not free. ldmConnect is a Perl script. The first line of the script is the path to Perl on your system. Since the ldmadmin script uses Perl also, this should be available on the system- so check the path to make sure it is correct for the decoder. The pqact.conf syntax looks correct, but check your ldmd.log file on start up of the ldm for any messages from pqact about the pqact.conf file- check for tabs in the appropriate location- pqact would probably die if this were the case. Steve Chiswell Unidata User Support >From: Chris Hennon <address@hidden> >Organization: . >Keywords: 199908261902.NAA28251 > This message is in MIME format. The first part should be readable text, > while the remaining parts are likely unreadable without MIME-aware tools. > Send mail to address@hidden for more info. > >---559023410-1804928587-935694142=:26427 >Content-Type: TEXT/PLAIN; charset=US-ASCII > >Steve - > >I have a couple of things today. > >1) We had been running ntl, nsat, garp, etc... normally for a week now. >They fired up fine with netscape running, never had any trouble getting >colors. All of a sudden, today I'm getting the infamous "[GEMPLT -46] >NCLRAL - Can not allocate read/write colors" error. The only thing I have >done since the software ran fine yesterday was configuring LDM to start up >at boot time - this involved numerous reboots of the system. My sysadmin >told me a while ago that he reconfigured the colors on our system, but >left out details and is now on vacation. We are running SunOS 5.7. Would >a reboot of the machine reset the color configuration? I ran "xdpyinfo" >and attached the output. When I tried to run "ntl", I got the following >output: > >graphic, satellite, radar -- 33 128 16 > Request total # of colors = 177 >X Error of failed request: BadValue (integer parameter out of range for >operation) > Major opcode of failed request: 86 (X_AllocColorCells) > Value in failed request: 0x0 > Serial number of failed request: 312 > Current serial number in output stream: 312 > >Any ideas? > >2) Does the WSI nexrad and nids come across the LDM wire, or is that >another situation where a password is needed to access? We aren't >receiving any at the moment. > >3) For some reason, we are not processing any zone forecasts even though >I know my upstream site is receiving them. The pqact.conf entry: > >WMO ^FPUS5[1-6] .... ([0-3][0-9])([0-2][0-9]) > PIPE /usr/local/ldm/decoders/ldmConnect -e .zone > (\1:yy)(\1:mm) data/nwx/pubprod/zone > >is being used to process. The ldmConnect script is in place and is >executable. The output directory exists and is writable. I believe the syntax of the entry above is correct. We are receiving most other text >products. Any ideas? > >Thanks. > >Chris > > > > >---559023410-1804928587-935694142=:26427 >Content-Type: TEXT/PLAIN; charset=US-ASCII; name="xdpyinfo.out" >Content-Transfer-Encoding: BASE64 >Content-ID: <Pine.SOL.3.96.990826150222.26427B@scooby> >Content-Description: > >bmFtZSBvZiBkaXNwbGF5OiAgICBzaGVhcjowLjANCnZlcnNpb24gbnVtYmVy >OiAgICAxMS4wDQp2ZW5kb3Igc3RyaW5nOiAgICBTdW4gTWljcm9zeXN0ZW1z >LCBJbmMuDQp2ZW5kb3IgcmVsZWFzZSBudW1iZXI6ICAgIDM2MTANCm1heGlt >dW0gcmVxdWVzdCBzaXplOiAgMjYyMTQwIGJ5dGVzDQptb3Rpb24gYnVmZmVy >IHNpemU6ICAyNTYNCmJpdG1hcCB1bml0LCBiaXQgb3JkZXIsIHBhZGRpbmc6 >ICAgIDMyLCBNU0JGaXJzdCwgMzINCmltYWdlIGJ5dGUgb3JkZXI6ICAgIE1T >QkZpcnN0DQpudW1iZXIgb2Ygc3VwcG9ydGVkIHBpeG1hcCBmb3JtYXRzOiAg >ICAzDQpzdXBwb3J0ZWQgcGl4bWFwIGZvcm1hdHM6DQogICAgZGVwdGggMSwg >Yml0c19wZXJfcGl4ZWwgMSwgc2NhbmxpbmVfcGFkIDMyDQogICAgZGVwdGgg >OCwgYml0c19wZXJfcGl4ZWwgOCwgc2NhbmxpbmVfcGFkIDMyDQogICAgZGVw >dGggMjQsIGJpdHNfcGVyX3BpeGVsIDMyLCBzY2FubGluZV9wYWQgMzINCmtl 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