calibre html2epub on linux error cannot connect to X server

voda · 08-12-2009, 06:43 AM

Hello,

I'm using the software for the conversion of xhtml to epub. It works great, however I can't get a cover to convert. I get an error message ": cannot connect to X server". The X server is running. I've tried to edit the DISPLAY var.

I'm using ubuntu 9.04 desktop with gnome. I'm trying to convert it with the command line on the desktop as well through ssh. Both ain't working.

The output:
INFO: Parsing ndc/file/123456789_dhahadhda_adhadhsdfjhsfjhfsjfsjsfj.xhtml
INFO: Detected chapter:
INFO: Detected chapter:
INFO: Detected chapter:
INFO: Detected chapter: Colofon
INFO: Detected chapter:
INFO: Processing stylesheet /tmp/calibre_0.4.143_1xp5Ie_html2epub/content/resources/styleboek_0.css...
INFO: Rationalizing fonts...
DEBUG: Done rationalizing
DEBUG: Saving stylesheets...
: cannot connect to X server

Does anyone know what might be the problem?

Many thanks,

Janwillem

user_none · 08-12-2009, 06:50 AM

You're using 0.4.143. Upgrade to the latest version (0.6.6 as of now). A number of X server requirements were removed for the command line tools since that version.

voda · 08-12-2009, 06:56 AM

Thanks for your answer. I installed calibre using apt-get. It is still the newest version according to apt-get. How can i update it to 0.6.6?

user_none · 08-12-2009, 07:02 AM

Sadly Ubuntu does not update application versions for the life of their release. So you're two options are to install from a PPA (another repository your can point apt at). An unsupported PPA can be found here. Or you can uninstall it with apt and install using the binary installer.

voda · 08-12-2009, 08:23 AM

I've updated calibre to the new version, but i still have the error.

When I use the flag -v for debugging, I get this message:

34% Running transforms on ebook...
Merging user specified metadata...
Detecting structure...
Detected chapter:
Detected chapter:
Detected chapter:
Detected chapter: Colofon
Detected chapter:
Auto generated TOC with 5 entries.
Flattening CSS and remapping font sizes...
Source base font size is 12.00000pt
Cleaning up manifest...
Trimming unused files from manifest...
Parsing stylesheet.css ...
Creating EPUB Output...
67% Creating EPUB Output
Looking for large trees in 123456789_dhahadhda_adhadhsdfjhsfjhfsjfsjsfj.xhtml ...
No large trees found
: cannot connect to X server

What could be the problem? The X server is definetly running. When i do ps aux | grep X I see:

root 2900 0.0 0.1 2908 740 ? S 08:40 0:00 xinit /etc/gdm/failsafeXinit /etc/X11/xorg.conf.failsafe with-gdm -- /usr/bin/X :0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt7 -br -once -config /etc/X11/xorg.conf.failsafe -logfile /var/log/Xorg.failsafe.log
root 2902 0.0 1.4 15872 7120 tty7 S<s+ 08:40 0:00 /usr/bin/X :0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt7 -br -once -config /etc/X11/xorg.conf.failsafe -logfile /var/log/Xorg.failsafe.log
root 2906 0.0 0.2 4208 1484 ? S 08:40 0:00 /bin/bash /etc/gdm/failsafeXinit /etc/X11/xorg.conf.failsafe with-gdm

Edit: With the new version I get the same error even when I convert without the cover

kovidgoyal · 08-12-2009, 12:56 PM

set | grep DISPLAY

and are you actually logged in to the X server as the user you're running the command as?

voda · 08-12-2009, 02:58 PM

The DISPLAY var is empty. I can set it to display=:0.0 but it makes not difference.
I log in with ssh to the server, where X is running. But I'm not actually logged in into the X server. Should I? Is there a way without? At the end i want to execute the program from the internet using php. I'm making a form, so people can create epub files.

kovidgoyal · 08-12-2009, 03:52 PM

Do

unset DISPLAY

and then run ebook-convert

voda · 08-12-2009, 04:10 PM

Still the same error.

kovidgoyal · 08-12-2009, 04:14 PM

Works for me on a headless server. In fact I use it to automatically convert a number of formats into EPUB.

voda · 08-12-2009, 04:19 PM

But unsetting the var wouldn't help very much would it? It would still need the X server to run right?

kovidgoyal · 08-12-2009, 04:38 PM

No it doesn't need the X server. If it detects that not X server is present (by querying DISPLAY) it skips over the parts that need the X server.

voda · 08-13-2009, 05:12 AM

Is there any other solution? unsetting the var doesn't seem to work.

kovidgoyal · 08-13-2009, 12:32 PM

What is the exact command you are using to convert?

voda · 08-14-2009, 04:20 AM

I use ebook-convert test.xhtml test.epub

When i was using the old version of calibre, i got the same error, however i only got it when i was converting a cover with it. Then i used html2epub. Now i always get the error.

08-12-2009, 06:43 AM	#1
voda Member Posts: 11 Karma: 10 Join Date: Aug 2009 Device: none	calibre html2epub on linux error cannot connect to X server Hello, I'm using the software for the conversion of xhtml to epub. It works great, however I can't get a cover to convert. I get an error message ": cannot connect to X server". The X server is running. I've tried to edit the DISPLAY var. I'm using ubuntu 9.04 desktop with gnome. I'm trying to convert it with the command line on the desktop as well through ssh. Both ain't working. The output: INFO: Parsing ndc/file/123456789_dhahadhda_adhadhsdfjhsfjhfsjfsjsfj.xhtml INFO: Detected chapter: INFO: Detected chapter: INFO: Detected chapter: INFO: Detected chapter: Colofon INFO: Detected chapter: INFO: Processing stylesheet /tmp/calibre_0.4.143_1xp5Ie_html2epub/content/resources/styleboek_0.css... INFO: Rationalizing fonts... DEBUG: Done rationalizing DEBUG: Saving stylesheets... : cannot connect to X server Does anyone know what might be the problem? Many thanks, Janwillem

08-12-2009, 08:23 AM	#5
voda Member Posts: 11 Karma: 10 Join Date: Aug 2009 Device: none	I've updated calibre to the new version, but i still have the error. When I use the flag -v for debugging, I get this message: 34% Running transforms on ebook... Merging user specified metadata... Detecting structure... Detected chapter: Detected chapter: Detected chapter: Detected chapter: Colofon Detected chapter: Auto generated TOC with 5 entries. Flattening CSS and remapping font sizes... Source base font size is 12.00000pt Cleaning up manifest... Trimming unused files from manifest... Parsing stylesheet.css ... Creating EPUB Output... 67% Creating EPUB Output Looking for large trees in 123456789_dhahadhda_adhadhsdfjhsfjhfsjfsjsfj.xhtml ... No large trees found : cannot connect to X server What could be the problem? The X server is definetly running. When i do ps aux \| grep X I see: root 2900 0.0 0.1 2908 740 ? S 08:40 0:00 xinit /etc/gdm/failsafeXinit /etc/X11/xorg.conf.failsafe with-gdm -- /usr/bin/X :0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt7 -br -once -config /etc/X11/xorg.conf.failsafe -logfile /var/log/Xorg.failsafe.log root 2902 0.0 1.4 15872 7120 tty7 S<s+ 08:40 0:00 /usr/bin/X :0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt7 -br -once -config /etc/X11/xorg.conf.failsafe -logfile /var/log/Xorg.failsafe.log root 2906 0.0 0.2 4208 1484 ? S 08:40 0:00 /bin/bash /etc/gdm/failsafeXinit /etc/X11/xorg.conf.failsafe with-gdm Edit: With the new version I get the same error even when I convert without the cover Last edited by voda; 08-12-2009 at 08:28 AM.

08-12-2009, 02:58 PM	#7
voda Member Posts: 11 Karma: 10 Join Date: Aug 2009 Device: none	The DISPLAY var is empty. I can set it to display=:0.0 but it makes not difference. I log in with ssh to the server, where X is running. But I'm not actually logged in into the X server. Should I? Is there a way without? At the end i want to execute the program from the internet using php. I'm making a form, so people can create epub files. Last edited by voda; 08-12-2009 at 03:04 PM.

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08-12-2009, 06:50 AM	#2
user_none Sigil & calibre developer Posts: 2,488 Karma: 1063785 Join Date: Jan 2009 Location: Florida, USA Device: Nook STR	You're using 0.4.143. Upgrade to the latest version (0.6.6 as of now). A number of X server requirements were removed for the command line tools since that version.

08-12-2009, 06:56 AM	#3
voda Member Posts: 11 Karma: 10 Join Date: Aug 2009 Device: none	Thanks for your answer. I installed calibre using apt-get. It is still the newest version according to apt-get. How can i update it to 0.6.6?

08-12-2009, 07:02 AM	#4
user_none Sigil & calibre developer Posts: 2,488 Karma: 1063785 Join Date: Jan 2009 Location: Florida, USA Device: Nook STR	Sadly Ubuntu does not update application versions for the life of their release. So you're two options are to install from a PPA (another repository your can point apt at). An unsupported PPA can be found here. Or you can uninstall it with apt and install using the binary installer.

08-12-2009, 12:56 PM	#6
kovidgoyal creator of calibre Posts: 43,843 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	set \| grep DISPLAY and are you actually logged in to the X server as the user you're running the command as?

08-12-2009, 03:52 PM	#8
kovidgoyal creator of calibre Posts: 43,843 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Do unset DISPLAY and then run ebook-convert

08-12-2009, 04:10 PM	#9
voda Member Posts: 11 Karma: 10 Join Date: Aug 2009 Device: none	Still the same error.

08-12-2009, 04:14 PM	#10
kovidgoyal creator of calibre Posts: 43,843 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Works for me on a headless server. In fact I use it to automatically convert a number of formats into EPUB.

08-12-2009, 04:19 PM	#11
voda Member Posts: 11 Karma: 10 Join Date: Aug 2009 Device: none	But unsetting the var wouldn't help very much would it? It would still need the X server to run right?

08-12-2009, 04:38 PM	#12
kovidgoyal creator of calibre Posts: 43,843 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	No it doesn't need the X server. If it detects that not X server is present (by querying DISPLAY) it skips over the parts that need the X server.

08-13-2009, 05:12 AM	#13
voda Member Posts: 11 Karma: 10 Join Date: Aug 2009 Device: none	Is there any other solution? unsetting the var doesn't seem to work.

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08-13-2009, 12:32 PM	#14
kovidgoyal creator of calibre Posts: 43,843 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	What is the exact command you are using to convert?

08-14-2009, 04:20 AM	#15
voda Member Posts: 11 Karma: 10 Join Date: Aug 2009 Device: none	I use ebook-convert test.xhtml test.epub When i was using the old version of calibre, i got the same error, however i only got it when i was converting a cover with it. Then i used html2epub. Now i always get the error.