# OS X Difficulties **URL:** \ **Category:** Uncategorized\ **Created:** [September 20, 2004, 9:56pm UTC](https://psychtoolbox.discourse.group/t/os-x-difficulties/1450 "2004-09-20T21:56:36Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Allen\_Ingling](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Allen\_Ingling](https://psychtoolbox.discourse.group/u/Allen_Ingling)\ **Post date:** [September 20, 2004, 9:56pm UTC](https://psychtoolbox.discourse.group/t/os-x-difficulties/1450/1 "2004-09-20T21:56:36Z")
I am a new graduate student at UVA, attempting to run Psychtoolbox on the Mac OS X systems in our lab. After downloading and installing Psychtoolbox, I am unable to succesfully run any demos (including the "MovieDemo.m" posted under the tutorials section of the Psychtoolbox website). When I try to run MovieDemo.m, Matlab suddenly terminates without showing any output. Other programs run but then freeze before doing anything. Although I am new to both Psychoboolbox and Matlab, I have been able to run other demo programs/ tutorials under the OSX implementation of Matlab (v 7.0.0, release 14). Furthermore, I just succesfully installed Psychotoolbox on a Windows PC in our lab, and was able to run the "MovieDemo.m" without issue. I noticed a number of bugs associated with the recent release of Psychtoolbox for OSX, and was wondering if anyone has experienced similiar problems, and or has suggestions on how to proceede. Thanks for the assistance, Michael Schutz ---
**Author:** ![nsrda](https://avatars.discourse-cdn.com/v4/letter/n/e9c0ed/32.png) [@nsrda](https://psychtoolbox.discourse.group/u/nsrda)\ **Post date:** [September 21, 2004, 9:55pm UTC](https://psychtoolbox.discourse.group/t/os-x-difficulties/1450/2 "2004-09-21T21:55:42Z")
Hello Michael, Greetings from Northwestern. I have to ask if you are the Michael Schutz I know? if so, let me know how you're doing! (I use this email address for email lists because of the inevitable spam that creeps in.) In any event, glad to see you using Psychtoolbox. Great stuff. Best, Ric Ashley "mrschutz" \<[mrschutz@...](mailto:mrschutz@...)\> wrote: > \> I am a new graduate student at UVA, attempting to run > \>Psychtoolbox on the Mac OS X > \>systems in our lab. After downloading and installing Psychtoolbox, > \>I am unable to > \>succesfully run any demos (including the "MovieDemo.m" posted under > \>the tutorials > \>section of the Psychtoolbox website). When I try to run MovieDemo.m, > \> Matlab suddenly > \>terminates without showing any output. Other programs run but then > \>freeze before doing > \>anything. > \> Although I am new to both Psychoboolbox and Matlab, I have been > \>able to run other > \>demo programs/ tutorials under the OSX implementation of Matlab (v > \>7.0.0, release 14). > \>Furthermore, I just succesfully installed Psychotoolbox on a Windows > \>PC in our lab, and > \>was able to run the "MovieDemo.m" without issue. I noticed a number > \>of bugs associated > \>with the recent release of Psychtoolbox for OSX, and was wondering if > \>anyone has > \>experienced similiar problems, and or has suggestions on how to > \>proceede. > \> > \>Thanks for the assistance, > \> > \>Michael Schutz > \> > \> \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Switch to Netscape Internet Service. As low as $9.95 a month -- Sign up today at [http://isp.netscape.com/register](http://isp.netscape.com/register) Netscape. Just the Net You Need. New! Netscape Toolbar for Internet Explorer Search from anywhere on the Web and block those annoying pop-ups. Download now at [http://channels.netscape.com/ns/search/install.jsp](http://channels.netscape.com/ns/search/install.jsp) ---
**Author:** ![anblick](https://avatars.discourse-cdn.com/v4/letter/a/48db29/32.png) [@anblick](https://psychtoolbox.discourse.group/u/anblick)\ **Post date:** [September 22, 2004, 4:46pm UTC](https://psychtoolbox.discourse.group/t/os-x-difficulties/1450/3 "2004-09-22T16:46:21Z")
The PTB text functions still crash Matlab on my machine. Here's the crash report when I run DrawSomeTextOSX: Configuration: MATLAB Version: 7.0.0.19901 (R14) Operating System: Darwin 7.5.0 Darwin Kernel Version 7.5.0: Thu Aug 5 19:26:16 PDT 2004; root:xnu/xnu-517.7.21.obj~3/RELEASE\_PPC Power Macintosh Window System: The XFree86 Project, Inc (40300000), display :0.0 Current Visual: 0x22 (class 4, depth 24) Virtual Machine: Java 1.4.2\_05 with "Apple Computer, Inc." Java HotSpot(TM) Client VM (mixed mode) Default Charset: US-ASCII r0 = a01905f4 r8 = a6bf7270 r16 = f0ffdd10 r24 = 1001fb08 r1 = f0ffc910 r9 = 0000001c r17 = 00000001 r25 = 000000ff r2 = a01901f4 r10 = 00002052 r18 = f0ffdd70 r26 = 00000000 r3 = 00000000 r11 = 0f82c928 r19 = 00000001 r27 = 00000000 r4 = 1001fb08 r12 = 901abb7c r20 = 0009d342 r28 = 00000000 r5 = 000000ff r13 = 00000000 r21 = 00000000 r29 = 00000600 r6 = 00000600 r14 = 0e7026d0 r22 = 0156a850 r30 = f0ffc990 r7 = f0ffc530 r15 = 00000002 r23 = 00000000 r31 = 901abb8c cr = 24044228 lr = 901abb8c xer = 00000004 ctr = 901abb7c vrsave = 00000000 Stack Trace: [0] CoreFoundation:0x901abbd0 [1] Screen.mexmac:0x0f820be4 [2] Screen.mexmac:0x0f8208a4 [3] Screen.mexmac:0x0f8212ec [4] Screen.mexmac:0x0f81d3b4 [5] Screen.mexmac:0x0f8178e8 [6] libmex.dylib:mexRunMexFile + 116 bytes [7] libmex.dylib:Mfh\_mex::dispatch\_file(int, mxArray\_tag\*\*, int, mxArray\_tag\*\*) + 316 bytes [8] libmwm\_dispatcher.dylib:Mfh\_file::dispatch\_fh(int, mxArray\_tag\*\*, int, mxArray\_tag\*\*) + 400 bytes [9] libmwm\_interpreter.dylib:inDispatchFromStack + 1628 bytes [10] libmwm\_interpreter.dylib:inCallFcnFromReference + 320 bytes [11] libmwm\_interpreter.dylib:inInterp(inDebugCheck, int, int, opcodes, inPcodeNest\_tag volatile\*) + 4868 bytes [12] libmwm\_interpreter.dylib:inInterPcodeSJ(inDebugCheck, int, int, opcodes, inPcodeNest\_tag\*) + 224 bytes [13] libmwm\_interpreter.dylib:inExecuteMFunctionOrScript(Mfh\_mp\*, bool) + 852 bytes [14] libmwm\_interpreter.dylib:inExecCompScript + 480 bytes [15] libmwm\_dispatcher.dylib:Mfh\_file::dispatch\_fh(int, mxArray\_tag\*\*, int, mxArray\_tag\*\*) + 400 bytes [16] libmwm\_interpreter.dylib:inDispatchFromStack + 1628 bytes [17] libmwm\_interpreter.dylib:inDispatchCall(char const\*, int, int, int, int\*, int\*) + 188 bytes [18] libmwm\_interpreter.dylib:inInterp(inDebugCheck, int, int, opcodes, inPcodeNest\_tag volatile\*) + 3248 bytes [19] libmwm\_interpreter.dylib:inInterPcodeSJ(inDebugCheck, int, int, opcodes, inPcodeNest\_tag\*) + 224 bytes [20] libmwm\_interpreter.dylib:in\_local\_call\_eval\_function(int\*, \_pcodeheader\*, int\*, mxArray\_tag\*\*, inDebugCheck) + 176 bytes [21] libmwm\_interpreter.dylib:inEvalStringWithIsVarFcn(\_memory\_context\*, char const\*, unsigned long, EvalType, int, mxArray\_tag\*\*, inDebugCheck, \_pcodeheader\*, int\*, bool (\*)(void\*, char const\*), void\*) + 2896 bytes [22] libmwm\_interpreter.dylib:inEvalString + 56 bytes [23] libmwm\_interpreter.dylib:inEvalCmdWithLocalReturnandtype(char const\*, int\*, inDebugCheck) + 116 bytes [24] libmwbridge.dylib:mnParser + 520 bytes [25] libmwmcr.dylib:mcrInstance::mnParser() + 104 bytes [26] MATLAB:mcrMain(int, char\*\*) + 400 bytes [27] MATLAB:run\_main(void\*) + 24 bytes [28] libSystem.B.dylib:0x900246e8 Error in ==\> DrawSomeTextOSX at 28 Screen('TextFont',w, 'Courier'); It also fails using Matlab 6.5.1: Configuration: MATLAB Version: 6.5.1.200223 (R13) Service Pack 1 Operating System: Darwin 7.5.0 Darwin Kernel Version 7.5.0: Thu Aug 5 19:26:16 PDT 2004; root:xnu/xnu-517.7.21.obj~3/RELEASE\_PPC Power Macintosh Window System: The XFree86 Project, Inc (40300000), display :0.0 Current Visual: 0x22 (class 4, depth 24) Virtual Machine: Java 1.3.1 with "Apple Computer, Inc." Java HotSpot(TM) Client VM (mixed mode) Segmentation violation occurred within signal handler. Unable to complete stack trace (stack was probably corrupted)