Ubuntu
xorg-server package

Mouse pointer lags behind slightly (still using software cursor instead of hardware)

Bug #1216468 reported by Daniel van Vugt
38
This bug affects 8 people
Affects Status Importance Assigned to Milestone
xorg-server (Ubuntu)
Won't Fix
High
Unassigned

Bug Description

Using XMir, the mouse pointer visually lags behind my movements, slightly.

It's been observed that using the upcoming "bypass" branch helps this a lot. But the proper fix will come later when XMir can use Mir's hardware cursor.

Prerequisite fix: bug 1204505

See original description
Tags: cursor xmir
Revision history for this message
David Turner (dwt) wrote :

I've been testing out the xubuntu xmir iso and each time I have noticed the mouse lag. I get used to it reasonably quickly, but it would be a game killer for gaming, and maybe even other areas which requires precise mouse movements (graphics design?). I hope the hardware cursor lands in time for 13.10.

Daniel van Vugt (vanvugt)
Changed in xmir:
status: New → Confirmed
Daniel van Vugt (vanvugt)
description: updated
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

David,

FYI, the lag is only in displaying the mouse pointer. Not in receiving input events. So this bug is not relevant to FPS type games where there's no X cursor to display.

Also, since bypass support landed this bug is almost imperceptible. And gaming performance is much closer to native X.

summary: - Mouse pointer lags behind slightly
+ Mouse pointer lags behind slightly (still using software cursor instead
+ of hardware)
Robert Ancell (robert-ancell)
Changed in xmir:
importance: Undecided → High
status: Confirmed → Triaged
Daniel van Vugt (vanvugt)
tags: added: cursor
Revision history for this message
Kai Mast (kai-mast) wrote :

The mouse lag is really horrible here. Not sure if Xmir itself is just extremely slow, or where this is coming from.

Robert Ancell (robert-ancell)
affects: xmir → xorg-server (Ubuntu)
tags: added: xmir
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

XMir 1.0 (the old Xorg extension) is now deprecated and is not being maintained or fixed. It is replaced by the new 'Xmir' binary (package 'xmir') introduced in Ubuntu 15.10 wily.

Changed in xorg-server (Ubuntu):
status: Triaged → Won't Fix
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