diff --git a/src/ndv/views/_vispy/_array_canvas.py b/src/ndv/views/_vispy/_array_canvas.py
index 35c12ed..7b672d3 100755
--- a/src/ndv/views/_vispy/_array_canvas.py
+++ b/src/ndv/views/_vispy/_array_canvas.py
@@ -16,7 +16,6 @@
 
 from ndv._types import CursorType
 from ndv.views._app import filter_mouse_events
-from ndv.views._vispy._utils import supports_float_textures
 from ndv.views.bases import ArrayCanvas
 from ndv.views.bases._graphics._canvas_elements import (
     CanvasElement,
@@ -441,7 +440,6 @@ def __init__(self) -> None:
         self._ndim: Literal[2, 3] | None = None
 
         self._elements: WeakKeyDictionary = WeakKeyDictionary()
-        self._txt_fmt = "auto" if supports_float_textures() else None
 
     @property
     def _camera(self) -> vispy.scene.cameras.BaseCamera:
@@ -485,7 +483,7 @@ def add_image(self, data: np.ndarray | None = None) -> VispyImageHandle:
         data = _downcast(data)
         try:
             img = scene.visuals.Image(
-                data, parent=self._view.scene, texture_format=self._txt_fmt
+                data, parent=self._view.scene, texture_format="auto"
             )
         except ValueError as e:
             warnings.warn(f"{e}. Falling back to CPUScaledTexture", stacklevel=2)
@@ -506,7 +504,7 @@ def add_volume(self, data: np.ndarray | None = None) -> VispyImageHandle:
                 data,
                 parent=self._view.scene,
                 interpolation="nearest",
-                texture_format=self._txt_fmt,
+                texture_format="auto",
             )
         except ValueError as e:
             warnings.warn(f"{e}. Falling back to CPUScaledTexture", stacklevel=2)
diff --git a/src/ndv/views/_vispy/_utils.py b/src/ndv/views/_vispy/_utils.py
deleted file mode 100644
index f5ec027..0000000
--- a/src/ndv/views/_vispy/_utils.py
+++ /dev/null
@@ -1,45 +0,0 @@
-from __future__ import annotations
-
-from contextlib import contextmanager
-from functools import cache
-from typing import TYPE_CHECKING
-
-from vispy.app import Canvas
-from vispy.gloo import gl
-from vispy.gloo.context import get_current_canvas
-
-if TYPE_CHECKING:
-    from collections.abc import Iterator
-
-
-@contextmanager
-def _opengl_context() -> Iterator[None]:
-    """Assure we are running with a valid OpenGL context.
-
-    Only create a Canvas if one doesn't exist. Creating and closing a
-    Canvas causes vispy to process Qt events which can cause problems.
-    Ideally call opengl_context() on start after creating your first
-    Canvas. However it will work either way.
-    """
-    canvas = Canvas(show=False) if get_current_canvas() is None else None
-    try:
-        yield
-    finally:
-        if canvas is not None:
-            canvas.close()
-
-
-@cache
-def get_gl_extensions() -> set[str]:
-    """Get basic info about the Gl capabilities of this machine."""
-    with _opengl_context():
-        return set(filter(None, gl.glGetParameter(gl.GL_EXTENSIONS).split()))
-
-
-FLOAT_EXT = {"GL_ARB_texture_float", "GL_ATI_texture_float", "GL_NV_float_buffer"}
-
-
-@cache
-def supports_float_textures() -> bool:
-    """Check if the current OpenGL context supports float textures."""
-    return bool(FLOAT_EXT.intersection(get_gl_extensions()))