Ipad 3/4 Display with HDMI converter board

[allegrosurf]

Hi @Sigimond0,
Sorry to bother you again, I just want to make sure, i dont want to buy a wrong one. Because i already printed the case, which one is the correct one

This one?
https://www.aliexpress.com/item/4000041589440.html
Or this one?
https://www.aliexpress.com/item/4000817738201.html

This one: https://www.aliexpress.com/item/4000817738201.html

Looks identical to the one I bought: https://www.amazon.com/gp/product/B07R4VR9PR

Thanks alot @Sigimond0, for your information, going to order the control board next week..

[SeeJ]

Thanks, I don’t want to assume, but can anyone also confirm if the power is center positive polarity?

Hi sorry to resurrect an old thread, but can someone confirm it is indeed centre-positive?

Thanks!

[dawshan]

Thanks, I don’t want to assume, but can anyone also confirm if the power is center positive polarity?

Hi sorry to resurrect an old thread, but can someone confirm it is indeed centre-positive?

Thanks!

Yes, it's center positive.

[snoot]

Has anyone tried powering the DE-10 via the USB port on the board? It claims it supplies 2.5A so could potentially given a suitable 12V supply powering the board.

Also, the board has 'speaker out' connections, anyone managed to hook those up for sound to small speakers?

[muthuxmut]

Has anyone tried powering the DE-10 via the USB port on the board? It claims it supplies 2.5A so could potentially given a suitable 12V supply powering the board.

Also, the board has 'speaker out' connections, anyone managed to hook those up for sound to small speakers?

I havent tried the display usb as a psu source for the de10
sound 'works' briefly and then turns into a crackly mess
I think the bandwidth is at a critical limit just doing the crazy resolution, so once it hits a point where the bandwidth is overwhelmed it needs a power cycle to recover

[GromRGB]

Hi,

Aliexpress try to send me a board 2 times less expensive.

https://fr.aliexpress.com/item/1005002631383788.html

Is anyone try this one to see if it is too lag free ?

[Kintaro]

Can anybody confirm that this iPad screen and driver combination can sync to PAL cores like Minimig or C64 with vsync=2 ?

For me smooth scrolling is an essential par of the retro experience.

Thanks in advance!

[TwinX]

Can anybody confirm that this iPad screen and driver combination can sync to PAL cores like Minimig or C64 with vsync=2 ?

For me smooth scrolling is an essential par of the retro experience.

Thanks in advance!

Works on my system , tested with 1080P. I only do not know how to get full screen

[socksfelloff]

I bought a 12V 3A adapter from Amazon with a 3.5mm connector and an adapter to convert that to the 1.35mm connector on the HDMI converter board. I updated my mister.ini with settings for the iPad 3 display (1536p) and attempted to boot. No video on the iPad display and the two LEDs near the power connector on the converter board are flashing.

Here's a photo of my setup.. Any ideas? Dead converter board?


IMG-5699.jpg

Mine came yesterday and I've got the same problem. The two leds just flash. Did you determine this was definetly a faulty board?

*edit* Figured out the problem. My board just doesn't want to run off 5v usb even to test but it works perfect with 12

[muthuxmut]

*edit* Figured out the problem. My board just doesn't want to run off 5v usb even to test but it works perfect with 12

the one i bought (linked above) is OK at 5v via usb, but i had to use a 2.5A psu from a pi3 to get it to work, anything less wont fire up.
but i didnt pay any attention to the LEDs sorry, so i dont know if its the same thing

[socksfelloff]

*edit* Figured out the problem. My board just doesn't want to run off 5v usb even to test but it works perfect with 12

the one i bought (linked above) is OK at 5v via usb, but i had to use a 2.5A psu from a pi3 to get it to work, anything less wont fire up.
but i didnt pay any attention to the LEDs sorry, so i dont know if its the same thing

Thanks for the reply. I used a 5v 3a psu that I also use for my pi3 and it would power the board if the screen was disconnected. If I connected the screen I'd get the blinking lights.

I have a feeling alot of these Psu's are incorrectly labeled

[Sorgelig]

Even though some boards will work from 5V (mine does), the brightness will be awful. So i suggest to use 12V anyway.

[socksfelloff]

Even though some boards will work from 5V (mine does), the brightness will be awful. So i suggest to use 12V anyway.

Despite having a giant bin of old adapters I didn't have a 1.35mm for it! I was hoping to just test that it worked off usb (after all why even include it?) While I waited for my adapter to come.

Gotta say I'm super happy with it now! All I had to do was select the resolution and everything just worked, no more manually editing the ini!

[orange428]

Hi, so is video_mode=13 the current recommended setting for native resolution on this panel? Or use one of the custom video_mode settings I've seen on this board and other places. Sorgelig posted this one at the top of the Custom Video Modes Test Thread:

video_mode=2048,48,32,80,1536,2,4,38,209250

but that was over a year ago.

I've also seen other places (retrorgb.com/smokemonster) suggest this:

video_mode=2048,26,32,48,1536,3,6,12,200000

Also you can calculate a reduced blanking v2 modeline using cvt12 on linux...for example:

./cvt12 2048 1536 60 -b
# 2048x1536 @ 60.000 Hz Reduced Blank (CVT) field rate 60.000 Hz; hsync: 94.800 kHz; pclk: 201.73 MHz
Modeline "2048x1536_60.00_rb2" 201.73 2048 2056 2088 2128 1536 1566 1574 1580 +hsync -vsync

which translates to:

video_mode=2048,8,32,40,1536,30,8,6,201730

Does anyone know what video_mode=13 is based on?

My feeling is that we should be using video_mode=13 now and all the custom modes were from before video_mode=13 was officially added to the ini file as a preset resolution.

But if anyone can confirm this that would be nice. Thanks.

[Kingteepee]

can someone please copy and past their ini so i can see if my display board is defective works with my pc and my switch but i cant get a picture on my mister

[tid]

Does anyone know what video_mode=13 is based on?

https://github.com/MiSTer-devel/Main_Mi ... /video.cpp

Code: Select all

vmode_t vmodes[] =
{
	{ { 1280, 110,  40, 220,  720,  5,  5, 20 },  74.25  }, //0
	{ { 1024,  24, 136, 160,  768,  3,  6, 29 },  65     }, //1
	{ {  720,  16,  62,  60,  480,  9,  6, 30 },  27     }, //2
	{ {  720,  12,  64,  68,  576,  5,  5, 39 },  27     }, //3
	{ { 1280,  48, 112, 248, 1024,  1,  3, 38 }, 108     }, //4
	{ {  800,  40, 128,  88,  600,  1,  4, 23 },  40     }, //5
	{ {  640,  16,  96,  48,  480, 10,  2, 33 },  25.175 }, //6
	{ { 1280, 440,  40, 220,  720,  5,  5, 20 },  74.25  }, //7
	{ { 1920,  88,  44, 148, 1080,  4,  5, 36 }, 148.5   }, //8
	{ { 1920, 528,  44, 148, 1080,  4,  5, 36 }, 148.5   }, //9
	{ { 1366,  70, 143, 213,  768,  3,  3, 24 },  85.5   }, //10
	{ { 1024,  40, 104, 144,  600,  1,  3, 18 },  48.96  }, //11
	{ { 1920,  48,  32,  80, 1440,  2,  4, 38 }, 185.203 }, //12
	{ { 2048,  48,  32,  80, 1536,  2,  4, 38 }, 209.318 }, //13
};

[muthuxmut]

can someone please copy and past their ini so i can see if my display board is defective works with my pc and my switch but i cant get a picture on my mister

Code: Select all

[MiSTer]
key_menu_as_rgui=0     ; set to 1 to make the MENU key map to RGUI in Minimig (e.g. for Right Amiga)
forced_scandoubler=0   ; set to 1 to run scandoubler on VGA output always (depends on core).
ypbpr=0                ; set to 1 for YPbPr on VGA output.
composite_sync=0       ; set to 1 for composite sync on HSync signal of VGA output.
vga_scaler=0           ; set to 1 to connect VGA to scaler output.
hdmi_audio_96k=0       ; set to 1 for 96khz/16bit HDMI audio (48khz/16bit otherwise)
keyrah_mode=0x18d80002 ; VIDPID of keyrah for special code translation (0x23418037 for Arduino Micro)
vscale_mode=1          ; 0 - scale to fit the screen height.
                       ; 1 - use integer scale only.
                       ; 2 - use 0.5 steps of scale.
                       ; 3 - use 0.25 steps of scale.
vscale_border=0        ; set vertical border for TVs cutting the upper/bottom parts of screen (1-399)
;bootscreen=0          ; uncomment to disable boot screen of some cores like Minimig. 
;mouse_throttle=10     ; 1-100 mouse speed divider. Useful for very sensitive mice
rbf_hide_datecode=0    ; 1 - hides datecodes from rbf file names. Press F2 for quick temporary toggle
menu_pal=0             ; 1 - PAL mode for menu core
hdmi_limited=0         ; 1 - use limited (16..235) color range over HDMI
                       ; 2 - use limited (16..255) color range over HDMI, for VGA converters.
direct_video=0         ; 1 - enable core video timing over HDMI, use only with VGA converters.
fb_size=0              ; 0 - automatic, 1 - full size, 2 - 1/2 of resolution, 4 - 1/4 of resolution.
fb_terminal=1          ; 1 - enabled (default), 0 - disabled
osd_timeout=30         ; 5-3600 timeout (in seconds) for OSD to disappear in Menu core. 30 seconds if not set.
                       ; Background picture will get darker after double timeout
osd_rotate=0           ; Display OSD menu rotated,  0 - no rotation, 1 - rotate right (+90°), 2 - rotate left (-90°)                  

; 1 - enables the recent file loaded/mounted.
; WARNING: This option will enable write to SD card on every load/mount which may wear the SD card after many writes to the same place
;          There is also higher chance to corrupt the File System if MiSTer will be reset or powered off while writing.
recents=0

; lastcore - Autoboot the last loaded core (corename autosaved in CONFIG/lastcore.dat) first found on the SD/USB
; lastexactcore - Autoboot the last loaded exact core (corename_yyyymmdd.rbf autosaved in CONFIG/lastcore.dat) first found on the SD/USB
; corename - Autoboot first corename_*.rbf found on the SD/USB
; corename_yyyymmdd.rbf - Autoboot first corename_yyyymmdd.rbf found on the SD/USB
;bootcore=lastcore    ; uncomment to autoboot a core, as the last loaded core.

; 10-30 timeout before autoboot, comment for autoboot without timeout.
bootcore_timeout=10

; Option to load the custom font. Format is plain bitmap 8x8.
; Supported sizes of font:
;   768 bytes - chars 32-127 (only alpha + numeric)
;  1024 bytes - chars 0-127
;  1136 bytes - chars 0-141
;  up to 2048 - only chars 0-141 will be used.
; if first 32 chars are empty (for sizes 1024 bytes and more) then they are skipped.
font=font/myfont.pf

; USER button emulation by keybaord. Usually it's reset button.
; 0 - lctrl+lalt+ralt (lctrl+lgui+rgui on keyrah)
; 1 - lctrl+lgui+rgui
; 2 - lctrl+lalt+del
; 3 - same as 0 (lctrl+lalt+ralt on keyrah)
reset_combo=0

; set to 1 for DVI mode. Audio won't be transmitted through HDMI in DVI mode.
dvi_mode=1

; 0 - 1280x720@60
; 1 - 1024x768@60
; 2 - 720x480@60
; 3 - 720x576@50
; 4 - 1280x1024@60
; 5 - 800x600@60
; 6 - 640x480@60
; 7 - 1280x720@50
; 8 - 1920x1080@60
; 9 - 1920x1080@50
;10 - 1366x768@60
;11 - 1024x600@60
;12 - 1920x1440@60
;13 - 2048x1536@60
;
custom mode: hact,hfp,hs,hbp,vact,vfp,vs,vbp,Fpix_in_KHz
;   video_mode=1280,110,40,220,720,5,5,20,74250
video_mode=13


; set to 1-10 (seconds) to display video info on startup/change
video_info=0

; Set to 1 for automatic HDMI VSync rate adjust to match original VSync.
; Set to 2 for low latency mode (single buffer).
; This option makes video butter smooth like on original emulated system.
; Adjusting is done by changing pixel clock. Not every display supports variable pixel clock.
; For proper adjusting and to reduce possible out of range pixel clock, use 60Hz HDMI video
; modes as a base even for 50Hz systems. 
vsync_adjust=1

; If you monitor doesn't support either very low (NTSC monitors may not support PAL) or 
; very high (PAL monitors may not support NTSC) then you can set refresh_min and/or refresh_max
; parameters, so vsync_adjust won't be applied for refreshes outside specified.
; These parameters are valid only when vsync_adjust is non-zero.
refresh_min=0
refresh_max=0

; These parameters have the same format as video_mode.
; You need to supply both PAL and NTSC modes if you want vsync_adjust to switch between
; predefined modes as a base. This will reduce the range of pixel clock.
;video_mode_ntsc=0
;video_mode_pal=7

; 1-10 (seconds) to display controller's button map upon first time key press
; 0 - disable
controller_info=6

; JammaSD/J-PAC/I-PAC keys to joysticks translation
; You have to provide correct VID and PID of your input device
; Examples: Legacy J-PAC with Mini-USB or USB capable I-PAC with PS/2 connectors VID=0xD209/PID=0x0301
; USB Capable J-PAC with only PS/2 connectors VID=0x04B4/PID=0x0101
; JammaSD: VID=0x04D8/PID=0xF3AD
jamma_vid=0x04D8
jamma_pid=0xF3AD

; Disable merging input devices. Use if only player 1 works.
; Leave no_merge_pid empty to apply this to all devices with the same VID.
;no_merge_vid=0x045E
;no_merge_pid=0x028E

; Speeds in sniper/non-sniper modes of mouse emulation by joystick 
; 0 - (default) - faster move in non-sniper mode, slower move in sniper mode.
; 1 - movement speeds are swapped.
sniper_mode=0

; Uncomment following option if you don't want to see a second line for long file names in listing.
;browse_expand=0

; 0 - disable MiSTer logo in Menu core
logo=1

; Custom shared folder for core supporting this feature (currently minimig and ao486 only)
; Can be relative to core's home dir or absolute path.
; Path must exist before core start to use it, or it will fail.
; Make sure USB device is mounted before use shared folder on USB!
shared_folder=

; Custom aspect ratio
;custom_aspect_ratio_1=16:10
;custom_aspect_ratio_2=1:1

; use specific (VID/PID) mouse X movement as a spinner and paddle. Use VID=0xFFFF/PID=0xFFFF to use all mice as spinners.
; spinner_throttle with base value 100 gives one spinner step per one tick. Higher value makes spinner slower.
; Lower than 100 makes spinner faster. Negative value gives opposite direction.
;spinner_vid=0x1BCF
;spinner_pid=0x0005
;spinner_throttle=-50

; Default filters for video scaler and audio. Paths must be relative to scaler/audio filter filders without leading slash.
;vfilter_default=LCD_Effect/07.txt
;afilter_default=LPF2000_3tap.txt

[orange428]

thanks tid...i didn't think about looking in the source files. it's basically the same line Sorgelig posted a year ago.

[SDLearmonth]

Finally set up my screen, cheers Greg!

Love this thing, you can get away with using non-integer scaling and you wont end up with noticeable shimmer, due to the high PPI of the screen for its size. So I tend to leave everything on 4:3 to fill the screen and use the "no interpolation" filter, apart from handhelds.

Low lag sync mode works for most cores except some arcade stuff and GBA, where it will just drop sync. For now I just use Alt1 config to switch to the 60Hz mode for those cores when needed. Sadly I can't get it to sync to the OSSC at all.

Speakers are louder than I expected for their size - little 1W 8ohm ones I used, soldered to the pins on the board rather than sourcing a molex connector.

MBg6bDX.jpeg (1.52 MiB) Viewed 40976 times

[numbski]

Sorry to tack onto this thread, but I am wanting to order a 12v 3a power for this screen, and I have seen two different plug sizes mentioned. One is 3.5mm, and another is 1.35mm. Which one is it, and is it positive or negative tip?

[FoxbatStargazer]

You can use the refresh_rate settings in mister.ini to set limits on the refresh while using vsync_adjust=1 or 2. When a core goes outside the bounds it will automatically switch to vsync_adjust=0 and take the refresh from your video mode. Then you don't have to bother switching manually. Just start with maybe 58 and 62 and you can adjust it from there if you feel adventurous.

[muthuxmut]

Sorry to tack onto this thread, but I am wanting to order a 12v 3a power for this screen, and I have seen two different plug sizes mentioned. One is 3.5mm, and another is 1.35mm. Which one is it, and is it positive or negative tip?

the screen will have some basic instructions on the website page you purchased from ??
my LCD was from aliexpress and there was this pic

Mi-STer-LCD.png (743.71 KiB) Viewed 39674 times

so the plug is a 3.5mm x 1.35mm, that is to say the outside is 3.5mm and the inside is 1.35mm
and it *should* be centre positive

[snoot]

Finally set up my screen, cheers Greg!

Love this thing, you can get away with using non-integer scaling and you wont end up with noticeable shimmer, due to the high PPI of the screen for its size. So I tend to leave everything on 4:3 to fill the screen and use the "no interpolation" filter, apart from handhelds.

Low lag sync mode works for most cores except some arcade stuff and GBA, where it will just drop sync. For now I just use Alt1 config to switch to the 60Hz mode for those cores when needed. Sadly I can't get it to sync to the OSSC at all.

Speakers are louder than I expected for their size - little 1W 8ohm ones I used, soldered to the pins on the board rather than sourcing a molex connector.


MBg6bDX.jpeg

Looks great! I'd heard reports that people have got poor audio from the speaker output, with digital interference. Have you experienced that?

[numbski]

Sorry to tack onto this thread, but I am wanting to order a 12v 3a power for this screen, and I have seen two different plug sizes mentioned. One is 3.5mm, and another is 1.35mm. Which one is it, and is it positive or negative tip?

the screen will have some basic instructions on the website page you purchased from ??
my LCD was from aliexpress and there was this pic


Mi-STer-LCD.png


so the plug is a 3.5mm x 1.35mm, that is to say the outside is 3.5mm and the inside is 1.35mm
and it *should* be centre positive

Indeed, you're correct - and I too have that version of the board. I ordered a universal supply, and the 3.5mm x 1.5mm with positive tip is what worked.

Thank you for your detailed answer. Surely that will help people that come along to this later!

[muthuxmut]

no worries.
I've ordered a Mean Well PSU that does 5v and 12v outputs.
I'll throw up pics when I have it all up and running

it's a RD-65A
input 100-240vac
output 5v 6A, 12v 3A

[jd213]

Just set up one of these with Laserbear's case, don't see myself using it as my main display but it's nice to have a little dedicated monitor for my MiSTer.

Most cores seemed to work with Vsync set to Low Lag, but certain consoles like NES, SNES, and TG-16 didn't work unless I changed the Vsync. Also no luck on Robotron 2084 set to Low Lag, which was disappointing since I had my twin stick out .

Also got green lines or blue speckles on a lot of Capcom arcade cores, the green lines look like HDMI artifacts so will have to try a different cable.

[snoot]

Just set up one of these with Laserbear's case, don't see myself using it as my main display but it's nice to have a little dedicated monitor for my MiSTer.

Most cores seemed to work with Vsync set to Low Lag, but certain consoles like NES, SNES, and TG-16 didn't work unless I changed the Vsync. Also no luck on Robotron 2084 set to Low Lag, which was disappointing since I had my twin stick out .

Also got green lines or blue speckles on a lot of Capcom arcade cores, the green lines look like HDMI artifacts so will have to try a different cable.

Oh no, I play little else other than Robotron and my driver board is about to arrive. I thought the Robotron arcade core was 60hz and would work with low lag.

[snoot]

Got the board today, fantastic screen if anything it's too bright!

It seems happy enough at video_mode 0 (1280 x 720) in vsync_adjust=2 on Robotron, and looks fine stretched so good enough for me, big relief!

Edit: video mode 12 looks better

[MiSTer_Kirk]

Can anybody confirm that this iPad screen and driver combination can sync to PAL cores like Minimig or C64 with vsync=2 ?

For me smooth scrolling is an essential par of the retro experience.

Thanks in advance!

Works on my system , tested with 1080P. I only do not know how to get full screen

Can anyone confirm that the ipad screen works with PAL cores ?
Just got mine, to replace my Dell, and the screen won't sync with anything 50hz. So, any PAL cores, I have to set to 60hz, which for us in PAL land will speed everything up slightly, but it's the music that now sounds weird because it's also playing slightly too fast.

[FoxbatStargazer]

This screen doesn't even handle some arcade cores right so I doubt PAL will work direclty.

Use the refresh rate min/max setting in the ini. This will switch the output over to vsync_adjust=0 when outside of the range, i.e. Mister will take care of buffering the frames to match your video_mode (which is probably around 60hz.) There will be a bit of choppiness and lag but the game itself (and sound) will run at the correct PAL speeds.