wgpu: X11 error: BadDrawable/BadMatch

Description The example with the triangle crashes.

Repro steps If I run RUST_BACKTRACE=1 cargo run --example hello-triangle I have this error.

[2023-03-04T15:31:54Z ERROR winit::platform_impl::platform] X11 error: XError {
        description: "BadDrawable (invalid Pixmap or Window parameter)",
        error_code: 9,
        request_code: 149,
        minor_code: 4,
    }
thread 'main' panicked at 'Failed to focus input context: XError { description: "BadDrawable (invalid Pixmap or Window parameter)", error_code: 9, request_code: 149, minor_code: 4 }', /home/dapx/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/linux/x11/event_processor.rs:912:30
stack backtrace:
   0: rust_begin_unwind
             at /rustc/d5a82bbd26e1ad8b7401f6a718a9c57c96905483/library/std/src/panicking.rs:575:5
   1: core::panicking::panic_fmt
             at /rustc/d5a82bbd26e1ad8b7401f6a718a9c57c96905483/library/core/src/panicking.rs:64:14
   2: core::result::unwrap_failed
             at /rustc/d5a82bbd26e1ad8b7401f6a718a9c57c96905483/library/core/src/result.rs:1791:5
   3: core::result::Result<T,E>::expect
             at /rustc/d5a82bbd26e1ad8b7401f6a718a9c57c96905483/library/core/src/result.rs:1070:23
   4: winit::platform_impl::platform::x11::event_processor::EventProcessor<T>::process_event
             at /home/dapx/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/linux/x11/event_processor.rs:909:25
   5: winit::platform_impl::platform::x11::EventLoop<T>::drain_events
             at /home/dapx/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/linux/x11/mod.rs:517:13
   6: winit::platform_impl::platform::x11::EventLoop<T>::run_return::single_iteration
             at /home/dapx/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/linux/x11/mod.rs:348:13
   7: winit::platform_impl::platform::x11::EventLoop<T>::run_return
             at /home/dapx/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/linux/x11/mod.rs:448:31
   8: winit::platform_impl::platform::x11::EventLoop<T>::run
             at /home/dapx/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/linux/x11/mod.rs:503:25
   9: winit::platform_impl::platform::EventLoop<T>::run
             at /home/dapx/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/platform_impl/linux/mod.rs:755:56
  10: winit::event_loop::EventLoop<T>::run
             at /home/dapx/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.27.5/src/event_loop.rs:278:9
  11: hello_triangle::run::{{closure}}
             at ./wgpu/examples/hello-triangle/main.rs:85:5
  12: pollster::block_on
             at /home/dapx/.cargo/registry/src/github.com-1ecc6299db9ec823/pollster-0.2.5/src/lib.rs:125:15
  13: hello_triangle::main
             at ./wgpu/examples/hello-triangle/main.rs:149:9
  14: core::ops::function::FnOnce::call_once
             at /rustc/d5a82bbd26e1ad8b7401f6a718a9c57c96905483/library/core/src/ops/function.rs:507:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

Platform Information about your OS, version of wgpu, your tech stack, etc.

I am using webgpu 0.15.0, I have just cloned the repo.

My uname -r -a output is: Linux pop-os 6.1.11-76060111-generic #202302091138~1675975749~22.04~f771a7f SMP PREEMPT_DYNAMIC Thu F x86_64 x86_64 x86_64 GNU/Linux

The output of sudo lshw -c video is:

  *-display                 
       description: VGA compatible controller
       product: TU106M [GeForce RTX 2060 Max-Q]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
       configuration: driver=nvidia latency=0
       resources: irq:102 memory:fb000000-fbffffff memory:b0000000-bfffffff memory:c0000000-c1ffffff ioport:f000(size=128) memory:fc000000-fc07ffff
  *-display
       description: VGA compatible controller
       product: Renoir
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: /dev/fb0
       version: c6
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi msix vga_controller bus_master cap_list fb
       configuration: depth=32 driver=amdgpu latency=0 resolution=1920,1080
       resources: irq:47 memory:d0000000-dfffffff memory:e0000000-e01fffff ioport:e000(size=256) memory:fc500000-fc57ffff

I have already reported the issue to the winit developers, but it looks like it’s not a winit problem https://github.com/rust-windowing/winit/issues/2716.

About this issue

Original URL
State: open
Created a year ago
Reactions: 1
Comments: 18 (6 by maintainers)

Most upvoted comments

Just to add another data point: I am running into the same issue. I have a CPU with integrated GPU and a dedicated GPU. The desktop is running on the dedicated one, but wgpu chose the integrated GPU, which is the cause of the problem. For me the error happens when calling winit::Window::inner_size, actually. It eventually calls winit::platform_impl::platform::x11::window::UnownedWindow::inner_size_physical which then incorrectly calls unwrap.

I’m using wgpu::PowerPreference::default() which defaults to the low power GPU. Even with WGPU_POWER_PREF=high, the integrated GPU was chosen. With wgpu::PowerPreference::HighPerformance, the dedicated one was chosen and everything works.

In my RequestAdapterOptions I’m also of course specifying compatible_surface. So my guess is that the “adapter choosing” code does not correctly check compatible_surface because the integrated GPU should be incompatible with the surface I passed.

LukasKalbertodt on Apr 23, 2023

@teoxoy maybe it makes sense to change the title from BadDrawable to BadMatch? just inc ase other users have the same problem.

edap on Mar 8, 2023