Public bug reported:

I believe this is caused by the panel and dock transparency animations
on the Ubuntu session (not the vanilla Gnome session). This is best
replicated on a multi-monitor set up.

Scenario 1:
  - Open some app, make full screen on monitor with panel and dock - panels are 
now opaque
  - Open some other app unmaximized
  - Rapidly drag back and forth between monitors
  - Everything's good

Scenario 2:
  - Ensure no app is making the panel / dock opaque
  - Open some app unmaximized
  - Rapidly drag back and forth between monitors
  - Crash

Now this happens both on X (where Gnome restarts) and Wayland (where we
get kicked out to the login screen). Just before the crash, CPU usage
spikes and frame rate drops dramatically.

Ubuntu 17.10, Wayland and X, intel graphics.

I can't find no gnome logs anywhere, but a 270MB binary file appears at
~/core, do you need this?

** Affects: gnome-shell (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  I believe this is caused by the panel and dock transparency animations.
+ This is best replicated on a multi-monitor set up.
  
  Scenario 1:
-   - Open some app, make full screen on monitor with panel and dock - panels 
are now opaque
-   - Open some other app unmaximized
-   - Rapidly drag between monitors
-   - Everything's good
+   - Open some app, make full screen on monitor with panel and dock - panels 
are now opaque
+   - Open some other app unmaximized
+   - Rapidly drag between monitors
+   - Everything's good
  
  Scenario 2:
-   - Ensure no app is making the panel / dock opaque
-   - Open some app unmaximized
-   - Rapidly drag between monitors
-   - Crash
+   - Ensure no app is making the panel / dock opaque
+   - Open some app unmaximized
+   - Rapidly drag between monitors
+   - Crash
  
  Now this happens both on X (where Gnome restarts) and Wayland (where we
  get kicked out to the login screen). Just before the crash, CPU usage
  spikes and frame rate drops dramatically.
  
  Ubuntu 17.10, Wayland and X, intel graphics.
  
  I can't find no gnome logs anywhere, but a 270MB binary file appears at
  ~/core, do you need this?

** Description changed:

  I believe this is caused by the panel and dock transparency animations.
  This is best replicated on a multi-monitor set up.
  
  Scenario 1:
    - Open some app, make full screen on monitor with panel and dock - panels 
are now opaque
    - Open some other app unmaximized
-   - Rapidly drag between monitors
+   - Rapidly drag fack and forth between monitors
    - Everything's good
  
  Scenario 2:
    - Ensure no app is making the panel / dock opaque
    - Open some app unmaximized
-   - Rapidly drag between monitors
+   - Rapidly drag fack and forth between monitors
    - Crash
  
  Now this happens both on X (where Gnome restarts) and Wayland (where we
  get kicked out to the login screen). Just before the crash, CPU usage
  spikes and frame rate drops dramatically.
  
  Ubuntu 17.10, Wayland and X, intel graphics.
  
  I can't find no gnome logs anywhere, but a 270MB binary file appears at
  ~/core, do you need this?

** Description changed:

  I believe this is caused by the panel and dock transparency animations.
  This is best replicated on a multi-monitor set up.
  
  Scenario 1:
    - Open some app, make full screen on monitor with panel and dock - panels 
are now opaque
    - Open some other app unmaximized
-   - Rapidly drag fack and forth between monitors
+   - Rapidly drag back and forth between monitors
    - Everything's good
  
  Scenario 2:
    - Ensure no app is making the panel / dock opaque
    - Open some app unmaximized
-   - Rapidly drag fack and forth between monitors
+   - Rapidly drag back and forth between monitors
    - Crash
  
  Now this happens both on X (where Gnome restarts) and Wayland (where we
  get kicked out to the login screen). Just before the crash, CPU usage
  spikes and frame rate drops dramatically.
  
  Ubuntu 17.10, Wayland and X, intel graphics.
  
  I can't find no gnome logs anywhere, but a 270MB binary file appears at
  ~/core, do you need this?

** Description changed:

- I believe this is caused by the panel and dock transparency animations.
- This is best replicated on a multi-monitor set up.
+ I believe this is caused by the panel and dock transparency animations
+ on the Ubuntu session (not the vanilla Gnome session). This is best
+ replicated on a multi-monitor set up.
  
  Scenario 1:
    - Open some app, make full screen on monitor with panel and dock - panels 
are now opaque
    - Open some other app unmaximized
    - Rapidly drag back and forth between monitors
    - Everything's good
  
  Scenario 2:
    - Ensure no app is making the panel / dock opaque
    - Open some app unmaximized
    - Rapidly drag back and forth between monitors
    - Crash
  
  Now this happens both on X (where Gnome restarts) and Wayland (where we
  get kicked out to the login screen). Just before the crash, CPU usage
  spikes and frame rate drops dramatically.
  
  Ubuntu 17.10, Wayland and X, intel graphics.
  
  I can't find no gnome logs anywhere, but a 270MB binary file appears at
  ~/core, do you need this?

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-shell in Ubuntu.
https://bugs.launchpad.net/bugs/1735127

Title:
  Ubuntu AA (gnome) - panel and dock transparency animation crashes
  Gnome shell

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  I believe this is caused by the panel and dock transparency animations
  on the Ubuntu session (not the vanilla Gnome session). This is best
  replicated on a multi-monitor set up.

  Scenario 1:
    - Open some app, make full screen on monitor with panel and dock - panels 
are now opaque
    - Open some other app unmaximized
    - Rapidly drag back and forth between monitors
    - Everything's good

  Scenario 2:
    - Ensure no app is making the panel / dock opaque
    - Open some app unmaximized
    - Rapidly drag back and forth between monitors
    - Crash

  Now this happens both on X (where Gnome restarts) and Wayland (where
  we get kicked out to the login screen). Just before the crash, CPU
  usage spikes and frame rate drops dramatically.

  Ubuntu 17.10, Wayland and X, intel graphics.

  I can't find no gnome logs anywhere, but a 270MB binary file appears
  at ~/core, do you need this?

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1735127/+subscriptions

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