Comments (2)
Relevant VLC source-code: (probably)
- https://code.videolan.org/videolan/vlc/-/blob/bc0ae4752e63638d5fe16d7304cb0edfa1f8c50f/modules/video_output/xcb/window.c#L704-766
- https://code.videolan.org/videolan/vlc/-/blob/bc0ae4752e63638d5fe16d7304cb0edfa1f8c50f/modules/video_output/xcb/window.c#L941-942
Relevant Feh source-code: (probably)
Running xwininfo -wm
on VLC (before and after entering full screen):
xwininfo: Window id: 0x5c0000c "rickroll.mp4 - VLC media player"
Window manager hints:
Client accepts input or input focus: Yes
Initial state is Normal State
Displayed on desktop 0
Window type:
Normal
Process id: 545810 on host foobar
Frame extents: 0, 0, 28, 0
xwininfo: Window id: 0x5c0000c "rickroll.mp4 - VLC media player"
Window manager hints:
Client accepts input or input focus: Yes
Initial state is Normal State
Displayed on desktop 0
Window type:
Normal
Window state:
Fullscreen
Focused
Process id: 545810 on host foobar
Frame extents: 0, 0, 0, 0
Running xwininfo -wm
on Feh (before and after entering full screen):
xwininfo: Window id: 0x6200001 "feh [1 of 8] - foobar.jpg"
No window manager hints defined
Window manager hints:
Displayed on desktop 0
Process id: 550205 on host foobar
Frame extents: 0, 0, 28, 0
xwininfo: Window id: 0x6200005 "feh [1 of 8] - foobar.jpg"
No window manager hints defined
Window manager hints:
Displayed on desktop 0
Window state:
Maximized Vert
Maximized Horz
Fullscreen
Process id: 550205 on host foobar
Somehow, it says "No window manager hints defined" for Feh. This may be a hint to start understanding what is the root cause.
from feh.
When using xprop
against both VLC and Feh, I noticed:
- VLC had
_NET_WM_STATE(ATOM) =
when windowed. - Feh had
_NET_WM_STATE(ATOM) =
when windowed. - VLC had
_NET_WM_STATE(ATOM) = _NET_WM_STATE_FULLSCREEN
when full screen. - Feh had
_NET_WM_STATE(ATOM) = _NET_WM_STATE_MAXIMIZED_VERT, _NET_WM_STATE_MAXIMIZED_HORZ, _NET_WM_STATE_FULLSCREEN
when full screen. - VLC has
_NET_WM_WINDOW_TYPE(ATOM) = _NET_WM_WINDOW_TYPE_NORMAL
, while Feh didn't have that hint/prop. - VLC and Feh had different (hexadecimal) values for
_MOTIF_WM_HINTS
.
I don't know what else to do. If you can provide a patch (or a branch), I can try compiling it myself and observing if the behavior changes.
from feh.
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from feh.