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nugi
Joined: 11 Sep 2005
Posts: 6
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 Posted: Sun Sep 11, 2005 3:38 am Post subject: Completely turn off display. how to? |
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Hello~
I'm wondering how to make my psp turn off LCD display completely.
I've tried sceGuDisplay(0), but it does not turn off LCD completely.
sceGuDisplay(0) command make the screen be black.
But LCD back light seems to be turned on.
The display will completely turned off when display off timeout occurs (controlled by system.)
Please let me know how to turn off the display completely.
Thank you~ |
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adresd
Joined: 17 Jan 2004
Posts: 43
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| Posted: Sun Sep 11, 2005 11:07 pm Post subject: |
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hold the display button for a few seconds and it will power down the display, leaving your code still running.
This has been tested in PSPMediaCenter.
press it again to get the display back :) |
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mrbrown
Joined: 17 Jan 2004
Posts: 1536
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| Posted: Mon Sep 12, 2005 5:24 am Post subject: |
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| adresd wrote: | hold the display button for a few seconds and it will power down the display, leaving your code still running.
This has been tested in PSPMediaCenter.
press it again to get the display back :) |
He was asking about how to turn off the screen using code.
I think you can use scePowerTick() to do what you want. See psppower.h in PSPSDK. |
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jockyw2001
Joined: 29 Sep 2005
Posts: 339
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| Posted: Mon Feb 26, 2007 2:00 am Post subject: |
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Is there a sceKernelPowerTick() function as well?
What's the difference between them? |
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adrahil
Joined: 16 Mar 2006
Posts: 277
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| Posted: Mon Feb 26, 2007 3:05 am Post subject: |
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| set the display enable bit to 0 in the bc10* address :) |
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SilverSpring
Joined: 27 Feb 2007
Posts: 115
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| Posted: Tue Feb 27, 2007 9:55 pm Post subject: |
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| sceDisplaySetBrightness(0, 0) will turn the backlight off (screen will still be there, just no backlight). If you want to completely disable the screen, you could try sceDisplayDisable(). |
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adrahil
Joined: 16 Mar 2006
Posts: 277
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| Posted: Wed Feb 28, 2007 5:05 am Post subject: |
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| And sceDisplayEnable() to turn it on again ;) |
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atari800
Joined: 22 Jun 2007
Posts: 2
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| Posted: Fri Jun 22, 2007 11:09 am Post subject: |
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Super noob - so please forgive me
I am trying to get sceDisplayEnable() and sceDisplayDisable() to work.
have tried -lpspdisplay_kernel & -lpspdisplay_driver and both together
Even tossed in:
#include "pspdisplay_kernel.h" (driver too)
At best it compiles but when it loads - it locks up psp
I upgraded PSPtoolchain (svn)
This made the compiles smaller but didnt help me with my problem
Does someone have advice or an example?
Thanks in advance |
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Art
Joined: 09 Nov 2005
Posts: 647
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| Posted: Sun Jun 24, 2007 4:14 pm Post subject: |
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did you try
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sceDisplaySetBrightness(0, 0)
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as suggested?
It works for me. |
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ulysse31
Joined: 12 Apr 2007
Posts: 1
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| Posted: Mon Jun 25, 2007 6:16 pm Post subject: |
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| Did you try to call int sceDisplaySetFrameBuf(NULL,0,anything,anything)? |
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sakya
Joined: 28 Apr 2006
Posts: 190
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| Posted: Mon Jun 25, 2007 11:49 pm Post subject: |
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Hi! :)
| Art wrote: | did you try
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sceDisplaySetBrightness(0, 0)
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as suggested?
It works for me. |
Since I'm interested in both sceDisplaySetBrightness and sceDisplayDisable can you please explain what's mandatory to use these functions?
I tried to write a simple program that uses sceDisplaySetBrightness but it crash as the function is executed.
I included pspdisplay_kernel.h, added -lpspdisplay_driver to LIBS in makefile (and updated my toolchain) and made the program run in kernel mode but sceDisplaySetBrightness doesen't seem to work.
What I'm doing wrong?
Can someone provide a little example for both sceDisplaySetBrightness and sceDisplayDisable?
Many thanks
Ciao
Sakya |
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youresam
Joined: 06 Nov 2005
Posts: 87
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| Posted: Tue Jun 26, 2007 4:20 pm Post subject: |
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| I am also having trouble using that function. |
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Art
Joined: 09 Nov 2005
Posts: 647
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| Posted: Tue Jun 26, 2007 4:27 pm Post subject: |
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Chuck this in your program with your other defines
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#define sceDisplaySetBrightness sceDisplay_driver_9E3C6DC6
void sceDisplay_driver_9E3C6DC6(int a0,int a1); /*a0 0-100,a1 = 0/1 (set to 0)*/
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libs I'm using in a program with it working are:
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LIBS = -lpspaudiolib -lpspaudio -lpspdebug -lstdc++ -lpsphprm_driver -lpspusb -lpspusbstor -lpsprtc -lpspvfpu -lpspgum -lpspgu -lpsppower -lpng -lz -lm -lpspdisplay_driver
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I don't know which are required sorry, but some there are obviously not.
Art. |
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youresam
Joined: 06 Nov 2005
Posts: 87
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| Posted: Wed Jun 27, 2007 6:45 am Post subject: |
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| undefined reference to `sceDisplay_driver_9E3C6DC6' |
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atari800
Joined: 22 Jun 2007
Posts: 2
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| Posted: Wed Jul 11, 2007 12:32 am Post subject: |
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I added -lpsppower -lpspdisplay_driver to my LIBS in the makefile
when I have sceDisplayEnable or scePowerTick or anything like this - if the program is in Game150 or GAME (kernel set to 1.50) - blank screen when it starts and I need ot reboot PSP to break out
if it is in Game340 - I get The Game could not be started - (8002013c) |
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weltall
Joined: 20 Feb 2004
Posts: 310
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