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List:       kde-devel
Subject:    Re: Force compositing possible?
From:       Thomas_Lübking <thomas.luebking () gmail ! com>
Date:       2011-03-29 14:14:32
Message-ID: op.vs3y6hir9bmiid () localhost ! localdomain
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Am 29.03.2011, 15:45 Uhr, schrieb A. Bischof <a.bischof@gmx.net>:

> Hi,
>
> first of all, I hope it's correct to post my problem here, if it
> belong's elsewhere, please let me know.
-> kwin@kde.org - but you can oc. call for general help on kde-devel as  
well :-)


> I'm trying to get compositing running with KDE 4.4.5 and an embedded ATI
> gfx-card, free radeon driver on Debian stable/testing
4.4.5 is pretty dated - the driver might just have been (hard) blacklisted  
than...

> It runs with KMS, I have hardware acceleration running (Xorg.0.log):
> (II) RADEON(0): Sync:  Separate  Composite
>          compiled for 1.7.7, module version = 1.0.0
>          compiled for 1.7.7, module version = 2.5.0
> (II) RADEON(0): [DRI2] Setup complete
> (II)         Composite (RENDER acceleration)
> (II) RADEON(0): Acceleration enabled

xdpyinfo| grep -iE 'composite|damage'
should print

     Composite
     DAMAGE

otherwise the extension is not loaded (no idea how that driver logs them,  
nvidia says:
[ 59332.321] (II) Initializing built-in extension COMPOSITE
[ 59332.321] (II) Initializing built-in extension DAMAGE

> I can use Cube-Switching as one can enable it under Multiple Desktop ->
> Switching.
So compositing /is/ active - the config dialog is just messed?
The suspended/enabled state calculation was pretty much borked (and has  
therefore been removed for 4.7)
You could just close the dialog and call

kwriteconfig -file kwinrc -group Compositing -key Enabled true
kwriteconfig -file kwinrc -group Compositing -key OpenGLIsUnsafe false
kwriteconfig -file kwinrc -group Compositing -key CheckIsSafe true

then restart systemsettings - does kwin somehow crashrestart when KDE  
starts up?

You'll likely have to enforce indirect rendering (export  
LIBGL_ALWAYS_INDIRECT=1) since the driver is likely buggy in this regard  
(they all / mesa were ...)


Cheers,
Thomas
 
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