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Consider below sequence - 1) Cursor is removed : isUp will be FALSE if HW cursor is set. 2) VT switched away from X : vtSema becomes FALSE. 3) xf86CursorSetCursor is called with non-null CursorPtr : Saves the passed in CursorPtr, fallbacks to SW cursor and invokes spriteFuncs->SetCursor which saves the area under cursor and restores the cursor. This sets isUp to TRUE and as vtSema is FALSE saved data is garbage. 4) VT switched to X : vtSema becomes TRUE. xf86Cursor enable fb access is called which will remove the SW cursor, i.e copies saved data in #3 to screen. This results to momentary garbage data on screen. Hence when !vtSema skip spriteFuncs->SetCursor. X.Org Bug 85313 <https://bugs.freedesktop.org/show_bug.cgi?id=85313> Signed-off-by: Yogish Kulkarni <yogishk@nvidia.com> Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Keith Packard <keithp@keithp.com> |
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