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Am 17.11.2010 23:26, schrieb Alan McKinnon: |
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> Apparently, though unproven, at 00:08 on Thursday 18 November 2010, Florian |
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> Philipp did opine thusly: |
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> |
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>> Hi list! |
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>> |
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>> Today, KDE nearly killed a presentation I held and now I want to |
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>> understand what's going on: |
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>> |
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>> Following setup: One laptop, two outputs (internal display + projector). |
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>> |
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>> Now I configure KDE to expand the desktop on both (instead of simple |
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>> cloning). So far, so good. |
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> |
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> For anyone to help at all, we'll need to know your hardware and video drivers, |
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> plus versions in use of X.org and it's drivers, plus relevant config stuff. |
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> |
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> Everything else is highly configurable and subject to the whim of driver |
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> writers and the user. And there's always nVidia's stance to be taken into |
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> account as well |
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> |
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|
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Ah, right, forgot about that. Intel GMA HD graphics (i915 driver), |
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x11-base/xorg-server-1.8.2 (USE="udev -hal") and x11-base/xorg-drivers-1.8 |
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|
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No xorg.conf. Tried it with composite effects off and on. |
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KDE is on version 4.4.5 and some packages 4.4.7 (current stable). |
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>> |
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>> First question: How does KDE choose on which output the "standard" |
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>> desktop ends up and which gets the second set of desktop background + |
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>> plasma widgets? It seems like the one with the higher resolution is |
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>> standard and on a draw, it is the right-most. Is that correct? Can it be |
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>> configured? |
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>> |
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>> Now that I have both desktops, I open Acroread or Okular and start the |
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>> fullscreen/presentation mode. What happens is that the presentation is |
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>> deterministically opened on one of the displays. What I don't understand |
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>> is how it chooses which one it uses? |
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>> |
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>> It doesn't depend on the placement of the window (although other |
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>> applications like Flash in Firefox, MPlayer, Kaffeine and Gwenview do). |
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>> It doesn't always open on the secondary or standard desktop (as |
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>> specified above). It rather seems like it always opens on the one with |
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>> the higher resolution and if both are equal, it opens on the left-most. |
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>> |
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>> So, what happened when I tried to hold my presentation? The projector |
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>> had a low resolution (1024x768) and therefore neither Acroread nor |
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>> Okular showed on fullscreen on the projector. None of my previous tests |
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>> showed that problem since I used two displays with equal resolution. |
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>> Great fun! In the end, I cloned the output and thereby gave Okular no |
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>> other choice. (Lucky me that I didn't any additional notes or anything |
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>> on the other display ...) |
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>> |
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>> What can I do to influence this behavior? |
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>> |
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>> Edit: I just noticed that both applications have settings for this. |
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>> However, they are ignored and the setting in Acroread is even reset to |
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>> "Current display" each time I close the settings dialog! What is going |
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>> on here? |
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>> |
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>> Thanks in advance! |
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>> Florian Philipp |
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> |
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