[Bug 109207] New: `override_redirect` windows are not visible on amdgpu

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Jan 1 22:52:15 UTC 2019


            Bug ID: 109207
           Summary: `override_redirect` windows are not visible on amdgpu
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/AMDgpu
          Assignee: xorg-driver-ati at lists.x.org
          Reporter: wacossusca34 at gmail.com
        QA Contact: xorg-team at lists.x.org

`InputOutput` windows with the `override_redirect` flag set in the
`XSetWindowAttributes` structure, alongside the `CWOverrideRedirect` mask set
when calling `XCreateWindow` should display a window after mapping (parent to
root window).

This is not the case on amdgpu, the window receives a single
`VisibilityFullyObscured` event and is never seen. The `map_state` attribute is
always `IsViewable`, raising the window has no effect, focusing the window
grabs input focus but does not show the window.

All other drivers behave accordingly here by providing a visible window. This
flag is essential for allowing certain window behavior independent of an active
window manager, including an application I maintain.

Affected system info:

$ pacman -Ss xorg-server
extra/xorg-server 1.20.3-1 (xorg) [installed]
    Xorg X server
$ pacman -Ss amdgpu
extra/xf86-video-amdgpu 18.1.0-1 (xorg-drivers) [installed]
    X.org amdgpu video driver
$ glxinfo | grep "renderer string"
OpenGL renderer string: Radeon RX 560 Series (POLARIS11, DRM 3.27.0,
4.19.2-arch1-1-ARCH, LLVM 7.0.0)

Tested with nouveau, nvidia, intel, llvmpipe to assert that the behavior is
consistent. Feel free to ask for additional details.

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