From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20020823
Netscape/7.0

Description of problem:
Data files are create, but it does not create any graphs.

The error messages are:

gd-png:  fatal libpng error: Invalid filter type specified
gd-png error: setjmp returns error condition

These messages are repeated several times.

The /etc/mrtg/mrtg.cfg worked fine for RH Linux 7.3

The /etc/mrtg/mrtg.cfg file:

# Multi Router Traffic Grapher -- Example Configuration File
######################################################################
# This file is for use with mrtg-2.0
#
# Note:
#
# * Keywords must start at the begin of a line.
#
# * Lines which follow a keyword line which do start
#   with a blank are appended to the keyword line
#
# * Empty Lines are ignored
#
# * Lines starting with a # sign are comments.

# Where should the logfiles, and webpages be created?

# Minimal mrtg.cfg
#--------------------

RunAsDaemon: No


IconDir: /icons/
WorkDir: /var/www/html/mrtg
PathAdd: /usr/bin

Target[disk3]: `/usr/local/scripts/disk_space.pl 0 1`
XSize[disk3]: 350
Title[disk3]: Disk usage for ci2951.rtd.civility.nl
MaxBytes[disk3]: 100
Options[disk3]: gauge, growright
YLegend[disk3]: %
ShortLegend[disk3]: %
Legend1[disk3]: Diskspace used
Legend2[disk3]: Diskspace used
LegendI[disk3]: /:
LegendO[disk3]: /boot:
PageTop[disk3]: <H1>Disk usage for ci2951.rtd.civility.nl</H1>

Target[localhost.mem]: `free -bt | grep buffers\/cache | awk '{print
$3"\n"$4}'`MaxBytes[localhost.mem]: 201326592
Title[localhost.mem]: Memory Utilization for ci2951.rtd.civility.nl
PageTop[localhost.mem]: <H1>Memory Utilization for ftp.cimplex.nl </H1>
Options[localhost.mem]: gauge,growright
YLegend[localhost.mem]: Bytes
ShortLegend[localhost.mem]: B
Legend1[localhost.mem]: Internal memory
Legend2[localhost.mem]: Buffers + Cache
Legend3[localhost.mem]: Maximal 5 Minute Memory In Use
Legend4[localhost.mem]: Maximal 5 Minute Active Memory
LegendI[localhost.mem]:  Used:
LegendO[localhost.mem]:  Buffers + Cache:
XSize[localhost.mem]: 350

XSize[localhost_users]: 350
Title[localhost_users]: Number of Users / Processes
Target[localhost_users]: `/usr/local/scripts/users.pl`
Options[localhost_users]: gauge,absolute,integer,nopercent,growright
MaxBytes[localhost_users]: 100000
YLegend[localhost_users]: Users / Processes
ShortLegend[localhost_users]: Users / Processes
Legend1[localhost_users]: Number of users
Legend2[localhost_users]: Number of processes
LegendI[localhost_users]: u:
LegendO[localhost_users]: p:
PageTop[localhost_users]: <h1>Number of Users / Processes</h1>

Title[http]: HTTP & QMail Connections
XSize[http]: 350
Target[http]: `/usr/local/scripts/connect_www_qmail.sh`
Options[http]: gauge,absolute,integer,nopercent,growright
MaxBytes[http]: 100000
YLegend[http]: Connections
ShortLegend[http]: Connections
Legend1[http]: Number of HTTP connections
Legend2[http]: Number of Qmail connections
LegendI[http]: HTTP connection:
LegendO[http]: QMail connections:
PageTop[http]: <h1>HTTP & QMail Connections</h1>


The necessary scripts are downloaded form the link pages of www.mrtg.cfg.



Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. Install mrtg
2. Install the necessary scripts or install net-snmpd and create another
/etc/mrtg/mrtg.cfg with cfgmaker
3. indexmaker /etc/mrtg/mrtg.cfg > /var/www/html/mrtg/index.html
4. mrtg /etc/mrtg.cfg

Actual Results:  error messages appear

Expected Results:  png format pictures being created viewable with a web-browser
like netscape 7.0 or mozilla 1.x

Additional info:

The used software rpm's:

mrtg-2.9.25-1.7.2
gd-1.8.4-9
libpng-1.2.2-6