** Changed in: gnome-shell (Ubuntu)
Status: New => Fix Released
** Changed in: mutter (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1856251
Title:
No fractional scaling is enabled. I eventually started just not using
fullscreen to avoid the flashing annoyance. I have since upgraded to
20.04. I see now that when I put an app into fullscreen, I no longer see
the flashing I reported in this issue. So my guess is something was
fixed in focal.
Do you have any fractional scaling enabled?
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Title:
Going from apps overview screen to fullscreen'd app causes flash
To manage notifications
** Summary changed:
- [nvidia] Going from apps overview screen to fullscreen'd app causes flash
+ Going from apps overview screen to fullscreen'd app causes flash
** Tags removed: nvidia
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On my workstation, this happens with fullscreen'd firefox too. Any
fullscreen'd app. So it's not limited to the terminal application.
However, this does not appear to happen on my thinkpad running 19.10. So
I think you're right, it is likely nvidia-specific.
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Oh, you can't test Wayland easily when using the Nvidia driver. I
recommend not so don't worry about that.
** Tags added: nvidia
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Title:
Going
Also forgot to mention that I expect this is probably related to
fullscreen bypass. Does it only occur in Xorg sessions?
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Title:
Going from apps
I can't seem to reproduce the problem just yet (using 20.04 with Intel
graphics).
My first two ideas are:
* Maybe this is related to Terminal's broken transparency (bug 561370)
* Maybe it's Nvidia-specific.
That log message "Not using GLX TFP" is from the mutter compositor code.
It means the
Whenever I have a fullscreen app focused on, and then hit the super key,
I see this JS ERROR in the journalctl (see attachment). Note that if the
app is not fullscreen, there is no flashing and no journalctl error log.
** Attachment added: "journalctl.out"
