[FreeNX-kNX] Problem with legacy app xclearcase (XListFonts or font handling maybe)

[Camilo Mesias]

Hi

I've consulted the knowledge base but not found a solution.

I have a legacy app that runs fine over VNC yet doesn't when using FreeNX.

The server is CentOs and the client is Windows.

The error message when the app doesn't run is:

 Error: Unable to create a text drawing font set.

I have used xtrace to see what requests go to and from the X-server
when the app starts and there seems to be a problem when the client is
requesting font information. Over VNC I see this:

000:<:046b: 68: Request(49): ListFonts max-names=0x0001
pattern='-Misc-Fixed-Medium-R-SemiCondensed--0-0-75-75-C-60-ISO8859-1'
000:>:046b:96: Reply to ListFonts:  names={
s='-misc-fixed-medium-r-semicondensed--0-0-75-75-c-60-iso8859-1'};
000:<:046c: 68: Request(49): ListFonts max-names=0x0001
pattern='-Misc-Fixed-Medium-R-SemiCondensed--0-0-75-75-C-60-ISO8859-1'
000:>:046c:96: Reply to ListFonts:  names={
s='-misc-fixed-medium-r-semicondensed--0-0-75-75-c-60-iso8859-1'};
000:<:046d: 68: Request(49): ListFonts max-names=0x0001
pattern='-Misc-Fixed-Medium-R-SemiCondensed--0-0-75-75-C-60-ISO8859-1'
000:>:046d:96: Reply to ListFonts:  names={
s='-misc-fixed-medium-r-semicondensed--0-0-75-75-c-60-iso8859-1'};
000:<:046e: 68: Request(49): ListFonts max-names=0x0001
pattern='-Misc-Fixed-Medium-R-SemiCondensed--0-0-75-75-C-60-ISO8859-1'
000:>:046e:96: Reply to ListFonts:  names={
s='-misc-fixed-medium-r-semicondensed--0-0-75-75-c-60-iso8859-1'};
000:<:046f: 68: Request(50): ListFontsWithInfo max-names=0x0064
pattern='-misc-fixed-medium-r-semicondensed--0-0-75-75-c-60-iso8859-1'
000:>:046f:296: Reply to ListFontsWithInfo:
min-bounds={left-side-bearing=0 right-side-bearing=0 character-width=6
ascent=-1 descent=-10 attributes=0x0000};
max-bounds={left-side-bearing=2 right-side-bearing=
[further output snipped]

There are lots of ListFonts requests that generally are replied with a
found name, followed by some ListFontsWithInfo that are replied with
details.

On FreeNX I get this:

000:<:03ae: 68: Request(49): ListFonts max-names=0x0001
pattern='-Misc-Fixed-Medium-R-SemiCondensed--0-0-75-75-C-60-ISO8859-1'
000:>:03ae:32: Reply to ListFonts:  names=;
000:<:03af: 68: Request(49): ListFonts max-names=0x0001
pattern='-Misc-Fixed-Medium-R-SemiCondensed--0-0-75-75-C-60-ISO8859-1'
000:>:03af:32: Reply to ListFonts:  names=;
000:<:03b0: 68: Request(49): ListFonts max-names=0x0001
pattern='-Misc-Fixed-Medium-R-SemiCondensed--0-0-75-75-C-60-ISO8859-1'
000:>:03b0:32: Reply to ListFonts:  names=;
000:<:03b1: 44: Request(49): ListFonts max-names=0x0001
pattern='-*-*-*-*-*-*-0-*-*-*-*-0-ISO8859-1'
000:>:03b1:32: Reply to ListFonts:  names=;
000:<:03b2: 68: Request(49): ListFonts max-names=0x0001
pattern='-Misc-Fixed-Medium-R-SemiCondensed--0-0-75-75-C-60-ISO8859-1'
000:>:03b2:32: Reply to ListFonts:  names=;
000:<:03b3: 68: Request(49): ListFonts max-names=0x0001
pattern='-Misc-Fixed-Medium-R-SemiCondensed--0-0-75-75-C-60-ISO8859-1'
000:>:03b3:32: Reply to ListFonts:  names=;
000:<:03b4: 68: Request(49): ListFonts max-names=0x0001
pattern='-Misc-Fixed-Medium-R-SemiCondensed--0-0-75-75-C-60-ISO8859-1'
000:>:03b4:32: Reply to ListFonts:  names=;
000:<:03b5: 44: Request(49): ListFonts max-names=0x0001
pattern='-*-*-*-*-*-*-0-*-*-*-*-0-ISO8859-1'
000:>:03b5:32: Reply to ListFonts:  names=;
[further output snipped]

In other words, the client is asking for fonts and the response is
always nothing. It doesn't get as far as asking for ListFontsWithInfo.

Other legacy apps work since I installed the legacy fonts in Windows
as described here:

http://www.nomachine.com/download-client-windows.php

but this app refuses to work. I notice that the requests made are for
uppercased query strings (eg. Misc) whereas responses come as lower
case (eg. misc).

I'm not sure how to proceed to get the legacy app to work, but it's
mainstream for my user base, so people will continue to use VNC while
FreeNX can't work with the app :( Has anyone got any ideas to work
around or fix the problem?

Thanks in advance,

-Cam