Bug #706

Nomacs latest version does not display "next" image correctly when using either button bar or arrow keys.

Added by Prodigal about 3 years ago. Updated almost 3 years ago.

Status:NewStart date:02.07.2016
Priority:NormalDue date:
Assignee:-% Done:

0%

Category:-
Target version:-
Version:3.1.0.2.91 Operating System:

Description

If one opens an image in nomacs (fullscreen or otherwise), more often than not nomacs displays the "next" image incorrectly. The next image size and res is totally wrong, and it is shown as overlying the previous image. Moving to another window and back to Nomacs fixes it until one uses arrow keys or toolbar to view next image.

This happens in Xubuntu Xenial... everything all up to date, and using the nomacs ppa for source. Also using stock Xubuntu graphics drivers.

See attached screen cast called NomacsBug.mkv

NomacsBug.mkv (2.8 MB) Prodigal, 02.07.2016 08:24


Related issues

Related to Support #704: Issue with themeing under Xenial; a Solution to QT5 themeing issues in xenial ... and a report that Nomacs is still insists in KDE dialogs even under GTK. New 28.06.2016

History

#1 Updated by Prodigal about 3 years ago

Note that reverting to the Xenial repo version of Nomacs results in images not being displayed at all even though the image name shows in the title bar.

Using the daily ppa, the issue is worse in that even the first image is viewed at the wrong res etc..

Removing all Qt5ct settings and app from system does nothing.

This all seemed to start with repo kernel update to 4.4.0-28-generic.
,

#2 Updated by Prodigal about 3 years ago

I just installed via stable ppa on my other laptop running Xenial, and it is doing the same thing, so it is not specific to the one system.

#3 Updated by Prodigal about 3 years ago

Prodigal wrote:

If one opens an image in nomacs 3.2.0.1 -91 (fullscreen or otherwise), more often than not nomacs displays the "next" image incorrectly. The next image size and res is totally wrong, and it is shown as overlying the previous image. Moving to another window and back to Nomacs fixes it until one uses arrow keys or toolbar to view next image.

This happens in Xubuntu Xenial... everything all up to date, and using the nomacs ppa for source. Also using stock Xubuntu graphics drivers.

See attached screen cast called NomacsBug.mkv

#4 Updated by Prodigal about 3 years ago

Why the above happens: Nomacs does this when the "QT_QPA_PLATFORMTHEME="qt5ct" environment variable is active. I had forgotten to remove it when I removed qt5ct.

So, I would remove my suggestion and instructions to use it in a previous bug report (704).

Note that I believe that this is still Nomacs related, as all my other QT5 apps, are behaving.

#5 Updated by Stefan about 3 years ago

  • Related to Support #704: Issue with themeing under Xenial; a Solution to QT5 themeing issues in xenial ... and a report that Nomacs is still insists in KDE dialogs even under GTK. added

#6 Updated by Markus about 3 years ago

could you try this:
Edit > Settings > Slideshow -> check always animate image loading

thx markus

#7 Updated by Prodigal almost 3 years ago

The release of QT5CT 0.25 (now in repos) has fixed the QT_QPA_PLATFORMTHEME=qt5ct environment variable issue on Ubuntu and derivatives. Now Nomacs displays the "next" image(s) correctly. :)

Issue 704 explains how to use QT5CT to theme QT5 apps in GTK+. The instructions work, and due to the above update, Nomacs now works as expected.

Thanks for your help devs.

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