Hello everyone,

I'm having trouble with PD (vanilla, fresh install, no external yet) on my new pc. Everything happening in the canvas (creating objects, typing values in the boxes, drawing connections between inlets/outlets) is excruciatingly slow - I'm talking about like .3 - .5 second delays, and very stuttery. It took me a full minute to create an [osc~] object and connecting it to a [dac~] to test the audio - which seems to work fine. The rest of the GUI (the panels, the menus) work fine.

It's quite frustrating and having googled the issue without finding anything useful. I tried switching from my pc's integrated graphics card to the NVIDIA one back and forth for the executables in the /bin/ folder, without success.

My pc is an Asus ROG laptop running MS Windows 10 (Home)
Processor: Intel(R) Core(TM) i5-6300HQ CPU @ 2.30GHz, 2304 Mhz, 4 Core(s), 4 Logical Processor(s)
Display: Intel(R) HD Graphics 530 RAM : 8.00 GB

Edit: I installed Purr Data and have having the exact same problem with it, which I find very weird since Purr Data doesn't use Tcl/Tk to display the graphics,.. I'm very confused.

@TerMinhqtor Hello, and welcome to the forum...!
"GUI horribly slow" is a problem that rears it's ugly head when Pure Data is not able to process audio properly (maybe I should say "easily"). Audio always has priority (unsurprisingly) even when it is not actually turned on for a patch (which is however..... surprising..!). If audio is struggling, it will interrupt the GUI.
The graphics are fine...... Menus etc....... as you have observed are unaffected. They are managed by the OS on instruction from the tcl code. It is re-drawing of the window contents (Pd GUIs) that suffer.

Anyway, you will need to look at the audio settings (Menu, Media, Audio Settings...)
Often relaxing the latency (bigger audio buffer) by increasing the "Delay (Msec):" will solve the problem.

You might have trouble setting the audio settings because Pd is struggling so much, in which case try opening this patch, and then saving your audio settings, and then re-starting Pd.
Pd Fix.zip
Read the "readme" first.
I hope that helps.
David.

Hi @whale-av,

Thank you for your swift answer.

It turns out PureData couldn't communicate with the ASIO drivers. So I updated my Realtek drivers and a new version of ASIO4ALL. Now, trying to select ASIO4ALL v2 in the Audio Settings tab of PureData makes it crash, and my pc's audio is muted as soon as I open it. The ASIO4ALL (PD) icon on my taskbar won't close even if I force End Task Pd,., and trying to play the sound test in Playback Devices -> Speaker Properties -> Advanced shows an error message "Device in use : The device is being used by another application." - even though I deactivated Exclusive Mode. I have to restart the pc to have my audio back, and I lose it as soon as I launch PD. This is getting tiring, I'm on the verge of formatting my computer to clean install Windows.

@TerMinhqtor Hmm... sounds nasty.
Is that with the absolute latest asio4all ?....... http://tippach.business.t-online.de/asio4all/
I imagine it is.
Have you been using asio4all with other software ?........ and it works ?
Will Pd run properly without selecting asio ?

I would hold off on a fresh install of windows. It is likely that there is a solution.

If you open the asio4all offline settings window (without Pd running) does that work? Although it "does nothing" it does grab info from the os drivers...... so it will prove that asio4all is talking properly with the os.

Could you post a screenshot please (if it works).
It will be possible to set minimal ASIO settings in a batch file that launches Pd....... which might help.
If you have asio4all working with another program then a screenshot (the same window) of a working setup would help.
I will google around for other clues....
David.

Fresh installed Windows 10 (needed it anyway, it's been like a year)

Now the GUI works properly. But oh boy the audio does not.

No audio without ASIO4All. When I select ASIO4All, I hearmy [osc~] but glitchy as hell. Changing the delay or the blocksize changes the perceived frequency of the glitchy sine wave. And PureData crashes, I can't close the window. The glitchy sine wave persists after having force quit Pd.

I don't use asio4all with other softwares. Here's a screenshot of the control panel of asio4all

Even if the problem is not yet solved I really appreciate your help @whale-av, thank you for your time !

Update : I tried several times to change the audio driver in the Audio Setup panel, at some point it seemed to launch Asio4all properly but the sound was still glitchy. I rebooted, launched Pd... now it works perfectyl. I don't know how but I'm not complaining. A bit effrayed to open the audio setup panel though.

Thanks again @whale-av !