Screencast capture in Full Screen Exclusive Mode on XWayland

Philip Race philip.race at oracle.com
Wed Jun 7 18:15:37 UTC 2023


I'm seeing this on a fully patched Ubuntu 22.04.02 which has 
"42.0-3ubuntu2" .. which I suppose is < 42.3
so could well be that's the issue.
Seems like we need to move up to more recent distro of something with a 
later gnome.

FYI Alexander found the problem went away on VirtualBox if he disables 
3D Acceleration
but that isn't a general workaround ..


-phil.


On 6/7/23 8:52 AM, Jonas Ådahl wrote:
> On Thu, Jun 01, 2023 at 09:59:47AM -0700, Philip Race wrote:
>> Jonas,
>>
>> The problem discussed here
>> https://wiki.openjdk.org/display/wakefield/Meeting+Notes
>>
>> "And there is one that is not a crash, with one particular test on
>> particular systems, which we still need to analyze, related to be not able
>> to get the screen data."
>>
>> looks like a case in which JDK uses puts a window into full screen mode
>> using this code
>> https://github.com/openjdk/jdk/blob/master/src/java.desktop/unix/native/libawt_xawt/awt/awt_GraphicsEnv.c#L1672
>>
>> In this case screencast capture of that window just fails.
>>
>> I found  a 12-18 month old thread where you were mentioned although I'm not
>> sure if you were directly involved
>> or just integrating fixes.
>>
>> https://github.com/flatpak/xdg-desktop-portal/issues/610
>> which linked to this
>> https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1914
>>
>> Can you shed any light on whether this might still be an issue on Gnome 42
>> (which is what I think I have).
> That should be included in 42, and does look related. There seems to
> have been a regression
> (https://gitlab.gnome.org/GNOME/mutter/-/issues/2282) that I seem to
> have fixed
> (https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2462). The fix
> was backported to 42.3. What version of mutter does your system have
> installed?
>
>
> Jonas
>
>> -phil.
>>
>>



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