| 2023-04-20 12:30:39 |
Daniel van Vugt |
bug |
|
|
added bug |
| 2023-04-21 08:03:06 |
Daniel van Vugt |
description |
Xorg sessions on Intel GPUs stutter noticeably in 23.04
Seems like a combination of:
* over-aggressive latency optimizations in the latest version of triple buffering; and
* gnome-shell 44 being slightly less efficient at some operations like scrolling the app grid.
Workaround: Add this to /etc/environment:
MUTTER_DEBUG_TRIPLE_BUFFERING=always |
[ Impact ]
Xorg sessions on Intel GPUs stutter noticeably in 23.04
Seems like a combination of:
* over-aggressive latency optimizations in the latest version of triple buffering; and
* gnome-shell 44 being slightly less efficient at some operations like scrolling the app grid.
[ Workaround ]
Add this to /etc/environment:
MUTTER_DEBUG_TRIPLE_BUFFERING=always
[ Test Plan ]
1. Find a machine with an Intel GPU.
2. Log into 'Ubuntu on Xorg'.
3. Press Super+A and scroll the icon right left/right. It should be perfectly smooth like in Wayland sessions.
[ Where problems could occur ]
Triple buffering affects all frame scheduling so any mistakes can cause high CPU usage, screen freezes and stutter. Try not to make mistakes. |
|
| 2023-04-24 09:14:33 |
Daniel van Vugt |
mutter (Ubuntu): status |
In Progress |
Fix Committed |
|
| 2023-05-16 10:28:32 |
Daniel van Vugt |
tags |
lunar performance regression-release triple-buffering |
fixed-upstream lunar performance regression-release triple-buffering |
|
| 2023-05-22 06:30:14 |
Daniel van Vugt |
mutter (Ubuntu): status |
Fix Committed |
Fix Released |
|
| 2023-05-22 19:09:07 |
Jeremy Bícha |
nominated for series |
|
Ubuntu Lunar |
|
| 2023-05-22 19:09:07 |
Jeremy Bícha |
bug task added |
|
mutter (Ubuntu Lunar) |
|
| 2023-05-22 19:09:12 |
Jeremy Bícha |
mutter (Ubuntu Lunar): status |
New |
In Progress |
|
| 2023-05-22 19:09:14 |
Jeremy Bícha |
mutter (Ubuntu Lunar): importance |
Undecided |
Medium |
|
| 2023-05-23 01:47:01 |
Daniel van Vugt |
summary |
Xorg sessions on Intel GPUs stutter noticeably in 23.04 |
GNOME 44.0 Xorg sessions on Intel GPUs stutter noticeably in 23.04 |
|
| 2023-05-24 06:36:22 |
Chris Halse Rogers |
mutter (Ubuntu Lunar): status |
In Progress |
Fix Committed |
|
| 2023-05-24 06:36:23 |
Chris Halse Rogers |
bug |
|
|
added subscriber Ubuntu Stable Release Updates Team |
| 2023-05-24 06:36:32 |
Chris Halse Rogers |
bug |
|
|
added subscriber SRU Verification |
| 2023-05-24 06:36:38 |
Chris Halse Rogers |
tags |
fixed-upstream lunar performance regression-release triple-buffering |
fixed-upstream lunar performance regression-release triple-buffering verification-needed verification-needed-lunar |
|
| 2023-05-24 07:26:15 |
Daniel van Vugt |
mutter (Ubuntu Lunar): assignee |
|
Daniel van Vugt (vanvugt) |
|
| 2023-05-24 07:28:09 |
Daniel van Vugt |
tags |
fixed-upstream lunar performance regression-release triple-buffering verification-needed verification-needed-lunar |
fixed-upstream lunar performance regression-release triple-buffering verification-done-lunar verification-needed |
|
| 2023-06-07 14:02:14 |
Launchpad Janitor |
mutter (Ubuntu Lunar): status |
Fix Committed |
Fix Released |
|
| 2023-06-07 14:02:28 |
Robie Basak |
removed subscriber Ubuntu Stable Release Updates Team |
|
|
|
