Hello @pttoth, can you check if the uninitialized window has the same properties as is described in #5584?
xwininfo: Please select the window about which you
would like information by clicking the
mouse in that window.
xwininfo: Window id: 0x520006d (has no name)
Absolute upper-left X: 0
Absolute upper-left Y: 0
Relative upper-left X: 0
Relative upper-left Y: 0
Width: 64
Height: 24
Depth: 24
Visual: 0x9f
Visual Class: TrueColor
Border width: 0
Class: InputOutput
Colormap: 0x520006c (not installed)
Bit Gravity State: NorthWestGravity
Window Gravity State: NorthWestGravity
Backing Store State: NotUseful
Save Under State: yes
Map State: IsViewable
Override Redirect State: yes
Corners: +0+0 -1536+0 -1536-876 +0-876
-geometry 64x24+0+0
_GTK_EDGE_CONSTRAINTS(CARDINAL) = 170
_NET_WM_STATE(ATOM) = _NET_WM_STATE_SKIP_PAGER, _NET_WM_STATE_SKIP_TASKBAR
_NET_WM_ALLOWED_ACTIONS(ATOM) = _NET_WM_ACTION_CHANGE_DESKTOP, _NET_WM_ACTION_ABOVE, _NET_WM_ACTION_BELOW
WM_PROTOCOLS(ATOM): protocols WM_DELETE_WINDOW
WM_TRANSIENT_FOR(WINDOW): window id # 0x5200043
WM_HINTS(WM_HINTS):
Client accepts input or input focus: True
_NET_WM_WINDOW_TYPE(ATOM) = _NET_WM_WINDOW_TYPE_MENU
_MOTIF_WM_HINTS(_MOTIF_WM_HINTS) = 0x2, 0x0, 0x0, 0x0, 0x0
WM_CLASS(STRING) = "Steam", "Steam"
Thanks @pttoth, this is a close enough match to consider this a duplicate. Transferred to https://github.com/ValveSoftware/steam-for-linux/issues/5584#issuecomment-426308792.
Your system information
Please describe your issue in as much detail as possible:
the rectangle looks to be the same from this issue: https://github.com/ValveSoftware/steam-for-linux/issues/2170
Steps for reproducing this issue:
note here, that Friends window doesn't automatically appear (it does, when auto sign-in is enabled)
4a. open Friends window first through the Steam icon in system tray.
note here, that when the signed-out Friends window appears, the phantom window also appears in the top left corner
4b1. open Library window first
note here, that the phantom rectangle doesn't appear
4b2. open signed-out Friends window second
note here, that the phantom rectangle still doesn't appear