Rubidium wrote:

I doubt the problem is in OpenTTD for the simple reason that we use a library for all mouse stuff. This library tells us where the mouse moved to and such OpenTTD behaves the same if OpenTTD gets the same input. It looks like it is somewhere in either X or SDL (the library we use for mouse, sound and video).

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Rubidium wrote:

Does this happen if you build a version with Allegro and then use Allegro for as video driver for OpenTTD?

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7877

rafgeens wrote:

It doesn't reproduce in the Allegro version.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7880

rafgeens wrote:

My SDL version is 1.2.13-4ubuntu.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7881

rafgeens wrote:

Also reproduces when using SDL 1.2.14 on Linux. No problems in the OpenTTD Windows version on the same machine.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7883

Rubidium wrote:

Given that it works fine with Allegro, OpenTTD only "sees" one mouse in both SDL and Allegro and because the other mice work, I can only conclude that this is an error related to SDL or at least the interaction of SDL with X/the mouse drivers.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7884

bilbo wrote:

I encountered similar bug recently - mouse cursor disappear when I click into OpenTTD window (I can still click and cause actions, but I can't see the pointer) and reappear if I move the mouse outside OpenTTD window and then back inside.

I am using Debian sid (unstable), x86_64 architecture

It is both in 1.0.0 and in nightly, but I guess that at least partial cause of the problem is upgrading some of my X server packages, since few days ago it worked normally and I haven't recompiled affected binaries since then.

I dug out OpenTTD 0.6.3 compiled about 1.5 years ago and it suffers from same problem.

Seems to be SDL or other libraries issue, though the question is if we can do something with it. Is it bug in the library or is OpenTTD using the library in a wrong way that happen to work until now?

I have SDL: libsdl1.2debian - version 1.2.14-5

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7898

Rubidium wrote:

I've not encountered this bug yet, but I don't have 1.2.14-5 yet... lets try updating to that and see the difference.
Okay, upgrading to 1.2.14-5 does not give me that bug, so it isn't in SDL or it is something between SDL, the window manager and X. I'm using XFCE's window manager.

Does reverting libsdl to 1.2.14-4 fix the issue? 1.2.14-5 seems to have changed the code for mouse handling somewhat.

Given that Wesnoth worked with 1.2.13 and so did OpenTTD, Wesnoth being broken by 1.2.14, fixed by 1.2.14-5 which possibly broke OpenTTD... something is really messed up there.

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=565788 is the bug report about Wesnoth being broken.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7900

bilbo wrote:

I tried downgrading libsdl from 1.2.14-5 to 1.2.14-4+b1 and it fixed the issue for me.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7901

bilbo wrote:

As for the window manager - I am using fluxbox version 1.1.1-7

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7902

Rubidium wrote:

Then I'd please file a bug report against libsdl 1.2.14-5 breaking OpenTTD mentioning that it seems to work with XFCE's window manager, but fails with fluxbox, and that 1.2.14-4(+b1) works.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7903

bilbo wrote:

I've reported it: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=578389

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7906

Rubidium wrote:

Thanks Bilbo.

To bad this can't be the cause for Raf Geens' problem. Maybe upgrading SDL for him helps, but I fear that that would imply upgrading Ubuntu 9.10 to 10.04 (beta?), which is quite a big step.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7907

frosch wrote:

Just to add: On gentoo with xfce4 Bilbo's issue is also encountered between 1.2.14-r1 and 1.2.14-r2 (gentoo versions, don't confuse with debian's), which differ just by the mentioned Wesnoth-related patch.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7909

rafgeens wrote:

Well, I tested it by building the latest 1.2.14 stable from SDL's site and linking OpenTTD to that, which alas didn't help. I do intend to upgrade to 10.04 when it's released, so I'll check in it then.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment7910

rafgeens wrote:

When using Ubuntu 10.04 and OpenTTD 1.0.1, the problem is gone.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment8029

Rubidium wrote:

So it is/was an SDL issue.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758#comment8030

Rubidium closed the ticket.

Reason for closing: Bug in external library

This comment was imported from FlySpray: https://bugs.openttd.org/task/3758