[Ardour-Users] ardour 4 // slow graphical interface

Robin Gareus robin at gareus.org
Tue Apr 21 16:45:18 PDT 2015

On 04/21/2015 08:26 PM, jk at jasonkahn.net wrote:
> hi everyone
> i've experience a noticeable slowness in the reaction time of the
> ardour 4 interface. for example, when i try to draw automation,
> mute a track or use the region tool all these actions have a lag
> time: like i click, then nothing happens and then a second later
> (not precise measurement, but close engough) the task occurs.
> i wanted to ask if anyone else has experienced this or if there is
> some setting in the preferences i can change to speed up the
> interface.
> i never experienced this problem with ardour 2 or 3 on this
> machine.
> i am running debian linux "testing," with the following kernel (if
> this matters) linux-image-3.16-3-686-pae. 32-bit system, intel
> graphics card.
> thanks for any help on this.

Which graphics card are you using (`lspci` should tell)?

Ardour4 uses 2D acceleration which in general yields huge performance
improvements, except for some odd graphics cards/drivers where the
accelerated version can actually be a lot slower. (IIRC some AMD-cards
radeon[?] were or are having issues like this. The issue is being
worked on in the driver EXA, glamour).


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