0006374: SDL library needs updating -- Alt-tabbing sometimes locks mouse cursor in upper left corner of screen

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Date Submitted

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0006374

Dwarf Fortress

Technical -- General

public

2013-09-21 05:05

2014-03-12 10:26

Reporter

Blue_Dwarf

Assigned To

Priority

none

Severity

minor

Reproducibility

random

Status

new

Resolution

open

Platform

Windows

OS Version

SP3

Product Version

0.34.11

Target Version

Fixed in Version

Summary

0006374: SDL library needs updating -- Alt-tabbing sometimes locks mouse cursor in upper left corner of screen

Description

When I alt tab from the game, there is a chance (one in three or so) that the mouse cursor will be stuck in the upper left corner of the screen.

Clicking anywhere (either on the game tab, any other tab, desktop or browser) sends it back to the corner, preventing me from maximizing the game window again or doing anything. After trying to click something three-four times, the issue disappears until the next series of alt tabbing.

Simply keeping the game open also does that, so trying to use an internet browser while the game is running is also difficult (it's even doing that as I'm typing this).

It appears in both vanilla and modded DF, with or without related programs running (such as Dwarf Therapist).

Steps To Reproduce

1. Alt tab from the game
2. Try to click anything, or get back into the game
3. Continue alt-tabbing until the issue appears

Additional Information

This is probably a case isolated to my system, as I see nobody else being aware of it. Still, it's the only software that does that.

I tried to find solutions on the internet, but nothing seems to work (one thing I tried was disabling visual themes for the game's .exe, right click-> properties-> compatibility-> disable visual themes). I also ran anti-virus/malware scans in case it was caused by something else.

I don't use any custom mouse software. I have a Logitech G15 keyboard with the latest drivers installed.

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Notes
(0024112) Blue_Dwarf (reporter) 2013-09-21 05:35	By "vanilla and modded DF", I actually mean "vanilla (with Phoebus tileset and Lazy Newb Pack) and modded DF (such as Masterwork)".

(0024596) lethosor (manager) 2014-03-08 19:40	This is a known issue in SDL. It was fixed in 1.2.15, which DF doesn't use. I suppose you could try replacing the SDL library included with DF and see if it helps.

(0024602) Blue_Dwarf (reporter) 2014-03-11 15:05	I think that worked. I haven't had that problem after many hours of playing with SDL 1.2.15.

(0024603) Footkerchief (manager) 2014-03-12 10:26	Thanks for reporting back!

Issue History
Date Modified	Username	Field	Change
2013-09-21 05:05	Blue_Dwarf	New Issue
2013-09-21 05:35	Blue_Dwarf	Note Added: 0024112
2014-03-08 19:40	lethosor	Note Added: 0024596
2014-03-11 15:05	Blue_Dwarf	Note Added: 0024602
2014-03-12 10:25	Footkerchief	Summary	Alt tabbing regularly causes mouse to be locked in upper left corner of the screen => SDL library needs updating -- Alt-tabbing sometimes locks mouse cursor in upper left corner of screen
2014-03-12 10:26	Footkerchief	Note Added: 0024603