Vulkano: Deferred example issue (linux, nvidia)

[skemps]

Hi!

The example starts fine but after drawing first frame winit event triggers recreate swapchain which in the next frames fail with SwapchainCreationError::UnsupportedDimensions and than it loops forever since it never successfully recreates swapchain.
I am not actually resizing or moving window.

Any ideas?

[ghost]

This example doesn't work properly for me on Windows either. I'm not sure what's supposed to happen, but it just seems to freeze indefinitely. I also have an Nvidia GPU.

[rukai]

I ran the example on linux + nvidia using vulkano 0.10 and the latest git master.
It runs fine for me.

Can you print out the dimensions it is attempting to use and let me know?
Your window manager might be giving it invalid dimensions.
Which window manager are you using?
I have had an issue on windows before where it was attempting to use dimensions of (0, 0)

If this is the case, the best solution might be to just remove the line
winit::Event::WindowEvent { event: winit::WindowEvent::Resized (_), .. } => recreate_swapchain = true,
Try that and let me know how it goes.

[skemps]

Here it just seems that it runs fine because I can see the triangle. But actually it's not. For example CloseRequested doesn't trigger because of constant UnsupportedDimension loop.

Dimensions are [1195, 896]. This is probably 1024x768 + decoration.

If I remove the handling of the resized event than it works, but crashes if I actually resize the window (Result::unwrap() on an Err value: OutOfDate on let after_frame = after_future.unwrap()...)

[rukai]

Oh huh, the deferred example doesnt handle the swapchain being out of date like the other examples do.
I'll fix that.

[rukai]

Can you give this PR a go? https://github.com/vulkano-rs/vulkano/pull/1074

[skemps]

I did a quick test and seems to be working OK.

[rukai]

Thanks!

[rukai]

@skemps what window manager are you using? X11 or wayland?
Looks like someone else has run into an issue where something similar to the old implemenation is required and I want to be able to reproduce this issue so i don't introduce a regression.

[skemps]

I'm using X11.

[rukai]

What window manager?

[skemps]

I think it's kwin. I'm not sure. I'm not at my computer right now. It's the default debian stretch with kde I'm using.

[rukai]

@skemps I sadly cant reproduce it on my machine using vulkano commits before the fix. Can you verify that I havent created a regression by testing the triangle example on this branch https://github.com/rukai/vulkano/tree/fix_wayland_resize

[skemps]

I tested triangle example from your branch and it works ok.