PDF visibility problems restricted to opera-next

PDF visibility problems restricted to opera-next

Hi

on a fresh install of Ubuntu 11.10 (two days ago) using the latest opera-next binaries with a ppa key I encounter problems with pdf visibility. These problems are due to transparency errors. The same webpage is correctly shown in the firefox 10 in parallel.
Any help welcome

Thanks a lot Bernhard




Über Opera
Versionsinformation Version 12.00 alpha Build 1306
Plattform Linux Betriebssystem i686, 3.0.0-16-generic
Browser-Identifikation Opera/9.80 (X11; Linux i686; U; Edition Next; de) Presto/2.10.255 Version/12.00
Dateien und Pfade
Einstellungen /home/bernhard/.opera-next/operaprefs.ini
Gespeicherte Sitzung /home/bernhard/.opera-next/sessions/autopera.win
Lesezeichendatei /home/bernhard/.opera-next/bookmarks.adr
Profil-Verzeichnis /home/bernhard/.opera-next
Cache-Verzeichnis /home/bernhard/.opera-next/cache
Hilfeseiten-Verzeichnis /home/bernhard/.opera-next/opcache
E-Mail-Verzeichnis /home/bernhard/.opera-next/mail
Plug-in-Verzeichnis /usr/lib/opera-next/plugins
/usr/lib/mozilla/plugins
/usr/lib/xulrunner-addons/plugins
/usr/lib/firefox/plugins
User-CSS-Verzeichnis /home/bernhard/.opera-next/styles/user

Adobe Reader 9.4 (from ubuntu sources)
Beschreibung: The Adobe Reader plugin is used to enable viewing of PDF and FDF files from within the browser.
/usr/lib/opera-next/plugins/nppdf.so (a link to /usr/lib/mozilla/plugins/nppdf.so)
application/pdf Portable Document Format pdf
application/vnd.adobe.xdp+xml Acrobat XML Data Package xdp
application/vnd.adobe.xfd+xml Adobe FormFlow99 Data File xfd
application/vnd.fdf Acrobat Forms Data Format fdf
application/vnd.adobe.xfdf XML Version of Acrobat Forms Data Format xfdf

Link: http://dev.biologists.org/content/136/12/2015.full.pdf

It looks fine here, but your screenshot there looks more like a bad scan than "transparency issues." Heck, there's even page borders. Maybe it's a matter of viewing modes?

the behaviour is opera-specific. I donot know whether it is possible to change any viewing modes in opera. as I wrote, in firefox the same the site with the same plugin looks fine. Before I re-setup the computer the same plug-in looked fine in opera-next.

I meant Acrobat viewing modes, nothing related to Opera. All I'm saying is that if this is some kind of rendering bug, it sure emulates a bad scan awfully well.

Any other ideas? Saving the file and displaying in Acrbat Reader is flawless. There are no ways to modify viewing modes in the plug-in! This does not appear to be helpfull. Sorry

It is not only the special example I showed. I took another random example from Pubmed: http://www.ncbi.nlm.nih.gov/pubmed

Looks like I was wrong, but what a peculiar pattern.

at the start nothing is visible, only while using the mouse to select something I get such screens which by carefully leaving the window I can fix for the screenshot.

I have got some ideas about this: The problem is Opera specific and is related to transparencies.

I have installed instead of the acroread package the adobereader-deu package and the problem persists. Using firefox the problem is not evident.

The peculiar pattern is due to my desktop background image which is indeed shining through the pdf-file. I have no idea where this type of transparency is due to. I am running a ubuntu unity with cairo-dock.

I was hoping Ruario or one of the other developers would chime in ...

There is a known issue with transparency and plugins, which this seems to be. You could of course disable hardware acceleration in Opera (but probably not what you want), or it seems to me there is a commandline argument you can use - indeed one I had to use with xzgv previously, but unfortunately I don't have it handy.

What is wrong here, is a fully transpararent Opera Window in Ubuntu Oneiric: whenever a covered window is white, you won't see anything in the plugin unless you do not select it.