https://bugs.kde.org/show_bug.cgi?id=279143
Summary: Okular's presentation mode does not update properly
(rendering issues)
Product: okular
Version: 0.12.5
Platform: Ubuntu Packages
OS/Version: Linux
Status: NEW
Severity: normal
Priority: NOR
Component: general
AssignedTo: okular-devel@kde.org
ReportedBy: hans_me...@gmx.net
Version: 0.12.5 (using KDE 4.6.5)
OS: Linux
Similar to bug #186464, I have problems with screen updates in presentation
mode. However, in contrast to that old report, it does not give me a gray
screen, but when flipping through pages only parts of the screen will be
updated. (Also, sometimes there seems to be a lag of one page, which is hard
to say definitely if there's only a small rectangular "window" in which there
is an update at all.) Furthermore, I am using a stock (Ubuntu) KDE setup with
kwin.
This is with an Ubuntu 11.04 (Natty, with KUbuntu's KDE PPA) system with the
latest (280.13-0ubuntu1~natty~xup1) NVIDIA binary drivers (which I suspect to
play a role here), installed via the "x-updates" PPA, see below.
Reproducible: Didn't try
Steps to Reproduce:
Happens everytime I open a PDF, press Ctrl-Shift-P to enter presentation mode,
and try to navigate through the pages (normal & full-screen modes work fine).
In case anyone with a natty system (and maybe an NVIDIA) card wants to
reproduce this, I have the following PPAs enabled:
deb http://ppa.launchpad.net/kubuntu-ppa/ppa/ubuntu natty main
deb http://ppa.launchpad.net/ubuntu-x-swat/x-updates/ubuntu/ natty main
Actual Results:
After pressing Ctrl-Shift-P, the current / title page is displayed in the size
of the original window in the upper left corner of the screen, the rest of the
screen contains large black or gray patches / rectangles.
When using PgUp/PgDown, parts of the screen (i.e. a vertical rectangle, roughly
but not exactly centered, overlapping with the above-mentioned small title
page) are updated, sometimes additional small patches are updated after a while
(without user interaction).
Switching desktops (Ctrl-F2, Ctrl-F1) lead to a proper screen refresh.
Expected Results:
Correctly repaint the whole screen after entering presentation mode and when
switching between pages.
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