# Re: result of new screentest for PowerMac G4/799

**URL:** <https://psychtoolbox.discourse.group/t/re-result-of-new-screentest-for-powermac-g4-799/1620>\
**Category:** Uncategorized\
**Created:** [June 11, 2002, 9:09am UTC](https://psychtoolbox.discourse.group/t/re-result-of-new-screentest-for-powermac-g4-799/1620 "2002-06-11T09:09:58Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![denispelli](https://avatars.discourse-cdn.com/v4/letter/d/cdc98d/32.png) [@denispelli](https://psychtoolbox.discourse.group/u/denispelli)\
**Post date:** [June 11, 2002, 9:09am UTC](https://psychtoolbox.discourse.group/t/re-result-of-new-screentest-for-powermac-g4-799/1620/1 "2002-06-11T09:09:58Z")

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dear hyung  
  
oops. i left out a file. here's the complete set. hopefully this will work.  
  
best  
  
denis  
  

> \>Dear Denis,  
> \>  
> \>Thanks for sending me the new screentest. ...  
> \>Am I missing a file? ...  
> \>  
> \>best,  
> \>Hyung  
> \>  
> \>...  
> \>??? Undefined function or variable 'SetClutWaitTest'.  
> \>  
> \>----- Original Message -----  
> \>From: "Denis Pelli" \<[denis.pelli@...](mailto:denis.pelli@...)\>  
> \>To: "hyung" \<[hyung@...](mailto:hyung@...)\>  
> \>Sent: Tuesday, June 11, 2002 5:30 PM  
> \>Subject: new SCREEN.mex (was screentest on PowerMac G4/799)  
> \>  
> \>  
> \>\> dear hyung  
> \>\>  
> \>\> thanks for the report. we just fixed that problem for Mac  
> \>\> Psychtoolbox 2.5, which should be released very soon.  
> \>\>  
> \>\> [http://psychtoolbox.org/mac.html#changes](http://psychtoolbox.org/mac.html#changes)  
> \>\>  
> \>\> however, so you don't have to wait, i'm enclosing the new SCREEN.mex,  
> \>\> which fixs the problem (actually it works around a bug in the ATI  
> \>\> driver for the 8500 Radeon card), and a new version of ScreenTest.m,  
> \>\> which produces a prettier report.  
> \>\>  
> \>\> please let us know whether this solves your problem.  
> \>\>  
> \>\> best  
> \>\>  
> \>\> denis  
> \>\>  
> \>\> p.s. please bear in mind that we can't test all combinations of  
> \>\> everything. i know that the combined files in release 2.5 work well  
> \>\> in tests to date. i'm guessing a bit in predicting that you'll be  
> \>\> able to drop these 4 new files into your release 2.44 without any  
> \>\> problems. if you have trouble, you might revert to release 2.44 and  
> \>\> switch to the full psychtoolbox 2.5 when it's released. quite soon.  
> \>\>  
> \>\> \>Dear Denis & David,  
> \>\> \>  
> \>\> \>Very recently I bought a PowerMac G4/799 and did screentest for it. At the  
> \>\> \>end of the test, it could not come back to the command window (the screen  
> \> \> \>just remained black). Because of this, I cannot send you the   
> \>results of the  
> \> \> \>screentest. Other programs I made for other G4 machines did not   
> \>run well on  
> \>\> \>the new Machine. I guess the graphic card may cause the problem.  
> \>\> \>Interestingly, when I set the color as 256 colors, at the end of the  
> \>\> \>screentest, it comes back to normal command window. At the end of the mail,  
> \>\> \>I attached the result (Please note that this result is for the condition  
> \>\> \>where the color is set to 256 colors; when the color is set to millions of  
> \>\> \>colors, the screentest does not work). Would you please help me out?  
> \>\> \>  
> \>\> \>Sincerely,  
> \>\> \>Hyung  
> \>\> \>  
> \>\> \>Hyung-Chul O. Li, Ph.D.  
> \>\> \>Dept. of Industrial Psychology  
> \>\> \>Kwangwoon University, Seoul, Korea  
> \>\> \>  
> \>\> \>  
> \>\> \>  
> \>\> \>\>\>screentest  
> \>\> \>ScreenTest will now test your computer's ability to show movies on each of  
> \>\> \>your screens. For explanation, type: help screentest  
> \>\> \>  
> \>\> \>\*\*\*\*\*\* hyung's Power Mac G4/799, Mac OS 9.2.2 \*\*\*\*\*\*  
> \>\> \>unknown PowerPC processor, 800 MHz, memory bus 133 MHz, 79.879 Mflop/s  
> \>\> \>PsychToolbox 2.44, 7 August 2000, MATLAB 5.2.1.1421  
> \> \> \>QuickTime 5.0.2  
> \>\> \>No screen saver.  
> \>\> \>Using UpTime-based timing, which is very accurate and reliable.  
> \>\> \>Has serial port arbitration.  
> \>\> \>\*\*\* Screen 0 \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
> \>\> \>ATY,BlueStone\_A (.Display\_DualHead version 1.0f64) in slot SLOT-1  
> \>\> \>10 bit dacs. 1280x1024 85 Hz. (56,60,65,67,70,72,75,76,85,90,100,120 Hz  
> \>\> \>avail)  
> \>\> \>Yay! SCREEN Preference AskSetClutDriverToWaitForBlanking set 0   
> \>\>ok, set 1 ok.  
> \>\> \> WARNING: DriverTest: SetClut doesn't wait (at priority 7), yet  
> \>\> \>SetClutDriverWaitsForBlanking is 1.  
> \>\> \> driver =  
> \>\> \> secs: 0.2000  
> \>\> \> windowPtrOrScreenNumber: 0  
> \>\> \> setClutDriverAwaitsBlanking: 0  
> \>\> \> interruptOnBlanking: []  
> \>\> \> setClutFraction: NaN  
> \>\> \> priority: 7  
> \>\> \> SetClut 306.8 Hz (3 ms) vs interrupt 85.1 Hz (12 ms)  
> \>\> \> pixelSize 8  
> \>\> \> setClutDriverAwaitsBlanking 0  
> \>\> \> SetClutDriverWaitsForBlanking 1  
> \>\> \> SetClut period 3 ms, or NaN ms with delay 2 ms  
> \>\> \> InterruptToSetClutEndSecs 0 0 0 0 0 0 0 0 0 0 ms  
> \>\> \> interruptOnBlanking 1  
> \>\> \> Please send this report to denis & david: [psychtoolbox@...](mailto:psychtoolbox@...)  
> \>\> \>  
> \>\> \> WARNING: DriverTest: SetClut doesn't wait (at priority 7), yet  
> \> \> \>SetClutDriverWaitsForBlanking is 1.  
> \>\> \> driver =  
> \>\> \> secs: 0.2000  
> \>\> \> windowPtrOrScreenNumber: 0  
> \>\> \> setClutDriverAwaitsBlanking: 0  
> \>\> \> interruptOnBlanking: []  
> \>\> \> setClutFraction: NaN  
> \>\> \> priority: 7  
> \>\> \> SetClut 317.2 Hz (3 ms) vs interrupt 85.1 Hz (12 ms)  
> \>\> \> pixelSize 16  
> \>\> \> setClutDriverAwaitsBlanking 0  
> \>\> \> SetClutDriverWaitsForBlanking 1  
> \>\> \> SetClut period 3 ms, or NaN ms with delay 2 ms  
> \>\> \> InterruptToSetClutEndSecs 0 0 0 0 0 0 0 0 0 0 ms  
> \>\> \> interruptOnBlanking 1  
> \>\> \> Please send this report to denis & david: [psychtoolbox@...](mailto:psychtoolbox@...)  
> \>\> \>  
> \>\> \> WARNING: DriverTest: SetClut doesn't wait (at priority 7), yet  
> \>\> \>SetClutDriverWaitsForBlanking is 1.  
> \>\> \> driver =  
> \>\> \> secs: 0.2000  
> \>\> \> windowPtrOrScreenNumber: 0  
> \>\> \> setClutDriverAwaitsBlanking: 0  
> \>\> \> interruptOnBlanking: []  
> \>\> \> setClutFraction: NaN  
> \>\> \> priority: 7  
> \>\> \> SetClut 306.6 Hz (3 ms) vs interrupt 85.0 Hz (12 ms)  
> \>\> \> pixelSize 32  
> \>\> \> setClutDriverAwaitsBlanking 0  
> \>\> \> SetClutDriverWaitsForBlanking 1  
> \>\> \> SetClut period 3 ms, or NaN ms with delay 2 ms  
> \>\> \> InterruptToSetClutEndSecs 0 0 0 0 0 0 0 0 0 0 ms  
> \>\> \> interruptOnBlanking 1  
> \>\> \> Please send this report to denis & david: [psychtoolbox@...](mailto:psychtoolbox@...)  
> \>\> \>  
> \>\> \>pixel size 8 16 32 bits  
> \>\> \>pages 1 1 1  
> \>\> \>CopyWindow (ie CopyBits) 189 192 192 MB/s  
> \>\> \>GetClut equals SetClut? ~= ~= na  
> \>\> \>SetClutDriverWaitsForBlanking? Yes  
> \>\> \>At priority 7 ... No blanking intrpts.  
> \>\> \>SetClut (cscSetEntries) min dur. 0.0 0.0 0.0 frames  
> \>\> \>\*\*\* SetClutDriverAwaitsBlanking? No  
> \>\> \>At priority 1 ... Blanking interrupts.  
> \>\> \>SetClut (cscSetEntries) min dur. 0.1 0.1 0.1 frames  
> \>\> \>SetClut suppresses ints. for 0.0 0.0 0.0 frames  
> \>\> \>\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
> \>\> \>\>\>  
> \>\>
