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Bug 3548

Summary: In Wayland, Endless Sky game's window drawn in the wrong place when alt-tabbing away and back again
Product: SDL Reporter: Nate Graham <pointedstick>
Component: *don't know*Assignee: Ryan C. Gordon <icculus>
Status: NEW --- QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2 CC: karlis3p70l1ij, pointedstick
Version: don't know   
Hardware: x86_64   
OS: Linux   
Attachments: test case

Description Nate Graham 2017-01-07 20:07:40 UTC 
Software: Fedora 25 + GNOME 3.22 + Wayland

Hardware: Kaby Lake (late 2016) HP Spectre x360 laptop, Intel HD 620 integrated graphics card, 13.3" display, Kernel 4.10-rc2 (though this has happened since 4.8).

A graphical anomaly is seen with the SDL-based video game Endless Sky on Fedora 25 with Wayland. When the game is being played full-screen, alt-tabbing away and back again results in the game's window being drawn in the wrong location: offset down and to the right. Here is a screen recording indicating the problem:

http://hommelscitadel.com/wp-content/uploads/2016/12/not_quite_right.webm

The issue is 100% reproducible with Wayland every way I try, but not seen if I log into an X session and try the same things.

I originally filed this against Endless Sky: https://github.com/endless-sky/endless-sky/issues/1902. The developer said it was SDL or Wayland (https://bugs.freedesktop.org/show_bug.cgi?id=99088). The Wayland folks say it's not them, so... here I am :)
Comment 1 Kārlis Seņko 2017-02-05 19:26:20 UTC 
Created attachment 2696 [details]
test case

Was able to repeat with 2.0.5 and attached test case.