** Changed in: xorg-server (Ubuntu)
Status: Confirmed => Won't Fix
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https://bugs.launchpad.net/bugs/1511278
Title:
Xmir -rootless: glmark2 (default GLX mode) judders badly in
** Tags added: rootless
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https://bugs.launchpad.net/bugs/1511278
Title:
Xmir -rootless: glmark2 (default GLX mode) judders badly in DRI2 mode
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This should help -> bug 1618815
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https://bugs.launchpad.net/bugs/1511278
Title:
Xmir -rootless: glmark2 (default GLX mode) judders badly in DRI2 mode
To manage notifications about
Found a workaround: Forcing Mir to use swap interval zero whenever
xmir_dri2_copy_region is used seems to solve the issue. Then we get one
swap per xmir_dri2_copy_region.
Although it's not clear why that's required at all. You should be able
to call xmir_dri2_copy_region many times before a swap
It appears we are painting more frames than are getting swapped:
xmir_dri2_copy_region
xmir_dri2_copy_region
xmir_dri2_copy_region
xmir_dri2_copy_region
xmir_dri2_copy_region
xmir_dri2_copy_region
xmir_dri2_copy_region
xmir_dri2_copy_region
xmir_repaint
xmir_swap
As opposed to a smooth rendering
