** Description changed: Impact ------ In the Wayland session with older Nvidia graphics (usually nvidia driver 470), a software cursor is used instead of a hardware cursor. This causes worse performance with unnecessary updates of the display. Test Case --------- - To see it just add this to /etc/environment: - MUTTER_DEBUG_FORCE_EGL_STREAM=1 - CLUTTER_PAINT=damage-region + 1. Set up an Nvidia-only desktop. No other GPUs active. Driver version + must be 470 or higher. - and reboot. + 2. Add this to /etc/environment: + + MUTTER_DEBUG_FORCE_EGL_STREAM=1 + CLUTTER_PAINT=damage-region + + 3. Reboot. + + 4. Log into 'Ubuntu on Wayland'. + + Observed: The red and blue boxes from the above debugging option follow + the mouse cursor. + + Expected: No red and blue boxes follow the mouse cursor. What Could Go Wrong ------------------- See the master bug for this mutter update LP: #1972726
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1948410 Title: [nvidia] Software cursor in Wayland sessions (EGLStreams) Status in Mutter: Unknown Status in mutter package in Ubuntu: Fix Released Status in mutter source package in Jammy: Fix Committed Bug description: Impact ------ In the Wayland session with older Nvidia graphics (usually nvidia driver 470), a software cursor is used instead of a hardware cursor. This causes worse performance with unnecessary updates of the display. Test Case --------- 1. Set up an Nvidia-only desktop. No other GPUs active. Driver version must be 470 or higher. 2. Add this to /etc/environment: MUTTER_DEBUG_FORCE_EGL_STREAM=1 CLUTTER_PAINT=damage-region 3. Reboot. 4. Log into 'Ubuntu on Wayland'. Observed: The red and blue boxes from the above debugging option follow the mouse cursor. Expected: No red and blue boxes follow the mouse cursor. What Could Go Wrong ------------------- See the master bug for this mutter update LP: #1972726 To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1948410/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
