| 2024-06-26 06:21:03 |
Daniel van Vugt |
bug |
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added bug |
| 2024-06-26 06:21:16 |
Daniel van Vugt |
nominated for series |
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Ubuntu Noble |
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| 2024-06-26 06:21:16 |
Daniel van Vugt |
bug task added |
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mutter (Ubuntu Noble) |
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| 2024-06-26 06:21:16 |
Daniel van Vugt |
nominated for series |
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Ubuntu Oracular |
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| 2024-06-26 06:21:16 |
Daniel van Vugt |
bug task added |
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mutter (Ubuntu Oracular) |
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| 2024-06-26 06:21:23 |
Daniel van Vugt |
mutter (Ubuntu Noble): assignee |
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Daniel van Vugt (vanvugt) |
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| 2024-06-26 06:21:27 |
Daniel van Vugt |
mutter (Ubuntu Noble): milestone |
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ubuntu-24.04.1 |
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| 2024-06-26 06:21:31 |
Daniel van Vugt |
mutter (Ubuntu Noble): importance |
Undecided |
Low |
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| 2024-06-26 06:21:34 |
Daniel van Vugt |
mutter (Ubuntu Oracular): milestone |
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ubuntu-24.10 |
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| 2024-06-26 06:21:44 |
Daniel van Vugt |
mutter (Ubuntu Oracular): assignee |
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Jeremy Bícha (jbicha) |
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| 2024-06-26 06:21:49 |
Daniel van Vugt |
mutter (Ubuntu Noble): status |
New |
Triaged |
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| 2024-06-26 06:29:26 |
Daniel van Vugt |
description |
Debug mode MUTTER_DEBUG_TRIPLE_BUFFERING=always doesn't result in triple buffering being used anymore. |
[ Impact ]
Debug mode MUTTER_DEBUG_TRIPLE_BUFFERING=always doesn't result in triple buffering being used anymore.
[ Test Plan ]
1. Add MUTTER_DEBUG_TRIPLE_BUFFERING=always to /etc/environment
2. Reboot.
3. Log into a Wayland session.
4. Open a Terminal window and drag it in circles with the mouse.
5. Verify there is a slight lag between the mouse pointer position and the window position. This means it's always triple buffering (or you accidentally logged into a Xorg session).
[ Where problems could occur ]
Anywhere in frame scheduling, including screen freezes and stutter.
[ Other Info ]
This regression occurred in 46.0 as a result of jbicha and myself working a little too independently. Jeremy identified that the upstream branch supported 46 and cherry-picked that for the Noble release, while I was still working on creating a stable maintenance branch for 46 in https://gitlab.gnome.org/Community/Ubuntu/mutter/-/tree/triple-buffering-v4-46
Fortunately it's very low priority and nobody has actually reported it. |
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| 2024-06-26 06:29:33 |
Daniel van Vugt |
tags |
noble oracular triple-buffering |
noble oracular regression-release triple-buffering |
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| 2024-06-28 09:03:42 |
Daniel van Vugt |
mutter (Ubuntu Noble): status |
Triaged |
In Progress |
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| 2024-07-05 11:44:41 |
Timo Aaltonen |
mutter (Ubuntu Noble): status |
In Progress |
Fix Committed |
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| 2024-07-05 11:44:43 |
Timo Aaltonen |
bug |
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added subscriber Ubuntu Stable Release Updates Team |
| 2024-07-05 11:44:46 |
Timo Aaltonen |
bug |
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added subscriber SRU Verification |
| 2024-07-05 11:44:49 |
Timo Aaltonen |
tags |
noble oracular regression-release triple-buffering |
noble oracular regression-release triple-buffering verification-needed verification-needed-noble |
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| 2024-07-09 06:14:06 |
Daniel van Vugt |
tags |
noble oracular regression-release triple-buffering verification-needed verification-needed-noble |
noble oracular regression-release triple-buffering verification-done-noble verification-needed |
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| 2024-07-22 08:27:28 |
Daniel van Vugt |
tags |
noble oracular regression-release triple-buffering verification-done-noble verification-needed |
noble oracular regression-release triple-buffering verification-done verification-done-noble |
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| 2024-07-31 03:15:47 |
Launchpad Janitor |
mutter (Ubuntu Noble): status |
Fix Committed |
Fix Released |
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| 2024-07-31 03:17:07 |
Chris Halse Rogers |
removed subscriber Ubuntu Stable Release Updates Team |
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