Hdmi to vga converter for raspberry pi

RaspBMC: 128G SD, K400 wl Kb+TPd, HD32tv&Rem.

RW'y webserver: 64G SD, Y-RK49 wl Kb+M, HannsG W24" screen

RW'y PDC & fileserver: as above + 2TB disc.

+RiscOSPi on 32G uSD.

Re: HDMI to VGA converter, no video

* The supported monitor mode(s) are not reported back to the HDMI, so hdmi_mode has to be set to the needed resolution and refresh rate directly

* The voltage supplied to HDMI pin 18 via D1 is not sufficient so D1 has to be bridged

As of raspberry PI's B+ and later, the BAT54 does no longer exist, nor does the voltage dropping problem, also the BAT54 was designed in with idea that the typical current consumption would not exceed the 20mA the serial EEPROM typical needs, it was NOT designed to support VGA converters, but the B+ (and later models) is!

Re: HDMI to VGA converter, no video

Re: HDMI to VGA converter, no video

Re: HDMI to VGA converter, no video

Re: HDMI to VGA converter, no video

Re: HDMI to VGA converter, no video

Re: HDMI to VGA converter, no video

Posts: 9712 Joined: Sun Mar 11, 2012 12:19 am Location: South Holland, The Netherlands

Re: HDMI to VGA converter, no video

You could just as well have used a piece of wire!

Re: HDMI to VGA converter, no video

hdmi_mode=2 480p 60Hz

hdmi_mode=3 480p 60Hz H

hdmi_mode=4 720p 60Hz

hdmi_mode=5 1080i 60Hz

hdmi_mode=6 480i 60Hz

hdmi_mode=7 480i 60Hz H

hdmi_mode=8 240p 60Hz

hdmi_mode=9 240p 60Hz H

hdmi_mode=10 480i 60Hz 4x

hdmi_mode=11 480i 60Hz 4x H

hdmi_mode=12 240p 60Hz 4x

hdmi_mode=13 240p 60Hz 4x H

hdmi_mode=14 480p 60Hz 2x

hdmi_mode=15 480p 60Hz 2x H

hdmi_mode=16 1080p 60Hz

hdmi_mode=17 576p 50Hz

hdmi_mode=18 576p 50Hz H

hdmi_mode=19 720p 50Hz

hdmi_mode=20 1080i 50Hz

hdmi_mode=21 576i 50Hz

hdmi_mode=22 576i 50Hz H

hdmi_mode=23 288p 50Hz

hdmi_mode=24 288p 50Hz H

hdmi_mode=25 576i 50Hz 4x

hdmi_mode=26 576i 50Hz 4x H

hdmi_mode=27 288p 50Hz 4x

hdmi_mode=28 288p 50Hz 4x H

hdmi_mode=29 576p 50Hz 2x

hdmi_mode=30 576p 50Hz 2x H

hdmi_mode=31 1080p 50Hz

hdmi_mode=32 1080p 24Hz

hdmi_mode=33 1080p 25Hz

hdmi_mode=34 1080p 30Hz

hdmi_mode=35 480p 60Hz 4x

hdmi_mode=36 480p 60Hz 4xH

hdmi_mode=37 576p 50Hz 4x

hdmi_mode=38 576p 50Hz 4x H

hdmi_mode=39 1080i 50Hz reduced blanking

hdmi_mode=40 1080i 100Hz

hdmi_mode=41 720p 100Hz

hdmi_mode=42 576p 100Hz

hdmi_mode=43 576p 100Hz H

hdmi_mode=44 576i 100Hz

hdmi_mode=45 576i 100Hz H

hdmi_mode=46 1080i 120Hz

hdmi_mode=47 720p 120Hz

hdmi_mode=48 480p 120Hz

hdmi_mode=49 480p 120Hz H

hdmi_mode=50 480i 120Hz

hdmi_mode=51 480i 120Hz H

hdmi_mode=52 576p 200Hz

hdmi_mode=53 576p 200Hz H

hdmi_mode=54 576i 200Hz

hdmi_mode=55 576i 200Hz H

hdmi_mode=56 480p 240Hz

hdmi_mode=57 480p 240Hz H

hdmi_mode=58 480i 240Hz

hdmi_mode=59 480i 240Hz H

hdmi_mode=2 640x400 85Hz

hdmi_mode=3 720x400 85Hz

hdmi_mode=4 640x480 60Hz

hdmi_mode=5 640x480 72Hz

hdmi_mode=6 640x480 75Hz

hdmi_mode=7 640x480 85Hz

hdmi_mode=8 800x600 56Hz

hdmi_mode=9 800x600 60Hz

hdmi_mode=10 800x600 72Hz

hdmi_mode=11 800x600 75Hz

hdmi_mode=12 800x600 85Hz

hdmi_mode=13 800x600 120Hz

hdmi_mode=14 848x480 60Hz

hdmi_mode=15 1024x768 43Hz DO NOT USE

hdmi_mode=16 1024x768 60Hz

hdmi_mode=17 1024x768 70Hz

hdmi_mode=18 1024x768 75Hz

hdmi_mode=19 1024x768 85Hz

hdmi_mode=20 1024x768 120Hz

hdmi_mode=21 1152x864 75Hz

hdmi_mode=22 1280x768 reduced blanking

hdmi_mode=23 1280x768 60Hz

hdmi_mode=24 1280x768 75Hz

hdmi_mode=25 1280x768 85Hz

hdmi_mode=26 1280x768 120Hz reduced blanking

hdmi_mode=27 1280x800 reduced blanking

hdmi_mode=28 1280x800 60Hz

hdmi_mode=29 1280x800 75Hz

hdmi_mode=30 1280x800 85Hz

hdmi_mode=31 1280x800 120Hz reduced blanking

hdmi_mode=32 1280x960 60Hz

hdmi_mode=33 1280x960 85Hz

hdmi_mode=34 1280x960 120Hz reduced blanking

hdmi_mode=35 1280x1024 60Hz

hdmi_mode=36 1280x1024 75Hz

hdmi_mode=37 1280x1024 85Hz

hdmi_mode=38 1280x1024 120Hz reduced blanking

hdmi_mode=39 1360x768 60Hz

hdmi_mode=40 1360x768 120Hz reduced blanking

hdmi_mode=41 1400x1050 reduced blanking

hdmi_mode=42 1400x1050 60Hz

hdmi_mode=43 1400x1050 75Hz

hdmi_mode=44 1400x1050 85Hz

hdmi_mode=45 1400x1050 120Hz reduced blanking

hdmi_mode=46 1440x900 reduced blanking

hdmi_mode=47 1440x900 60Hz

hdmi_mode=48 1440x900 75Hz

hdmi_mode=49 1440x900 85Hz

hdmi_mode=50 1440x900 120Hz reduced blanking

hdmi_mode=51 1600x1200 60Hz

hdmi_mode=52 1600x1200 65Hz

hdmi_mode=53 1600x1200 70Hz

hdmi_mode=54 1600x1200 75Hz

hdmi_mode=55 1600x1200 85Hz

hdmi_mode=56 1600x1200 120Hz reduced blanking

hdmi_mode=57 1680x1050 reduced blanking

hdmi_mode=58 1680x1050 60Hz

hdmi_mode=59 1680x1050 75Hz

hdmi_mode=60 1680x1050 85Hz

hdmi_mode=61 1680x1050 120Hz reduced blanking

hdmi_mode=62 1792x1344 60Hz

hdmi_mode=63 1792x1344 75Hz

hdmi_mode=64 1792x1344 120Hz reduced blanking

hdmi_mode=65 1856x1392 60Hz

hdmi_mode=66 1856x1392 75Hz

hdmi_mode=67 1856x1392 120Hz reduced blanking

hdmi_mode=68 1920x1200 reduced blanking

hdmi_mode=69 1920x1200 60Hz

hdmi_mode=70 1920x1200 75Hz

hdmi_mode=71 1920x1200 85Hz

hdmi_mode=72 1920x1200 120Hz reduced blanking

hdmi_mode=73 1920x1440 60Hz

hdmi_mode=74 1920x1440 75Hz

hdmi_mode=75 1920x1440 120Hz reduced blanking

hdmi_mode=76 2560x1600 reduced blanking

hdmi_mode=77 2560x1600 60Hz

hdmi_mode=78 2560x1600 75Hz

hdmi_mode=79 2560x1600 85Hz

hdmi_mode=80 2560x1600 120Hz reduced blanking

hdmi_mode=81 1366x768 60Hz

hdmi_mode=82 1080p 60Hz

hdmi_mode=83 1600x900 reduced blanking

hdmi_mode=84 2048x1152 reduced blanking

hdmi_mode=85 720p 60Hz

hdmi_mode=86 1366x768 reduced blanking

Good luck people!

Posts: 9712 Joined: Sun Mar 11, 2012 12:19 am Location: South Holland, The Netherlands

Re: HDMI to VGA converter, no video

But be careful or you might get a diode shaped blister on your thumb!

Re: HDMI to VGA converter, no video

hdmi_mode=16 (closest to my monitor resolution)

Re: HDMI to VGA converter, no video

Re: HDMI to VGA converter, no video

This is indeed a VGA to HDMI converter

So, the convertor's input is HDMI and the convertor's output is VGA, so the convertor is HDMI to VGA.

and I think njytouch

Re: HDMI to VGA converter, no video

I bought a cheap converter (not powered) connected it to R /Pi with an SD card loaded with an XBMC media program with no problems but when I changed to an SD card with the Pi OS (a version from Amazon which works with the TV) the Pi would not connect with the VGA monitor. So it looks like a software problem?

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Hdmi to vga converter for raspberry pi

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Can a simple cable convert HDMI output to VGA?

One may buy a simple HDMI-to-VGA cable, or an HDMI-to-DVI cable. Example: on Amazon. However, my vague knowledge is that these cables only work for video cards that have special support for this function. Does the Raspberry Pi support such things?

Is there any easy way to use the Raspberry Pi on a screen that only takes VGA input without a converter box? What kind of conversion to other video outputs would the Raspberry Pi hardware support, and what cables or other equipment would be necessary for this?

The reason a DVI-to-VGA adapter works on your PC & laptop is that DVI includes analog (RGB) pins. The adapter is passive; It just connects the red analog output of the PC to the red analog input of the monitor, ditto for green and blue. They are included on most PCs and laptops for backward compatibility.

HDMI-to-DVI cables are also passive, but they carry digital signals only. The analog RGB signals are missing, but that does not matter as the DVI monitor does not need them.

HDMI contains no analog signal so it is not possible for any combination of passive adapters and/or cables to convert it to VGA.

Active adapters work because they use DSPs and DACs to convert from one standard to the other, but of course they are more expensive than passive cables.

The Neewer HDMI to VGA converter lead from Amazon does indeed work with the RPi but as has been reported elsewhere you have to do a bit of fine tuning in the /boot/config.txt file.

I still cannot get my Samsung 943N to see anything but a simple Dell generic 15" VGA monitor works fine. One problem seems to be that the default output signal level is not sufficient so setting config_hdmi_boost=4 seems necessary. The monitor also complains that it wants 1024x768 at 60Hz which is hdmi_mode=16 .

The article at http://elinux.org/RPi_config.txt also suggests that the hdmi_group values documented should be 0 and 1 not 1 and 2 and indeed I needed to change hdmi_group to 1 . So my current file looks like:

Modification for Dell 15" Monitor with Debian GNU/Linux 6.0 OS I found that it would only work with: hdmi_group=2

Raspberry Pi User Guide by Eben Upton has the video modes in the appendix. The user guide lists the hdmi_group values as 1 or 2.

The "simple" HDMI to VGA cables will not work quite simply because HDMI signals are pure digital and VGA is analogue. I made the mistake of buying a very cheap cable from Amazon which did not work for reasons that are clear to me now. I am awaiting the delivery of a "Neewer Black HDMI Input To VGA Adapter Converter For PC Laptop" from Amazon which I am confident will do the job. It was less than £15. I will post my findings here.

I am using this cable to connect my Raspberry Pi to an HP monitor (with DVI input).

A couple of notes: You can not then connect another cable or adapter to change this to a VGA input. Secondly, if converting the Raspberry Pi's HDMI to DVI be careful of the DVI connector; there is more than one type and one size does not fit all (I learned this lesson the hard way).

It may be a problem with your configuration file. Try deleting it, and if that doesn't work try changing it to this.

A list of available properties for the Raspberry Pi can be found here.

It is important to not just give up when the adaptor/converter doesn't seem to work out of the box. Most probably there will be converters which won't work and VGA displays which won't be supported, but my feeling is most of them work just fine - with some extra steps.

If you want to check whether yours has chances, use an empty /boot/config.txt file and add hdmi_safe=1 to it.

While this won't give you the best resolution, it probably will get you to the login prompt.

After that you can start with tweaking it further until you get the most out of your monitor capabilities.

You can get some useful information about your monitor by entering these 3 commands:

/opt/vc/bin/tvservice -m CEA /opt/vc/bin/tvservice -m DMT /opt/vc/bin/tvservice -s

Use the Raspberry Pi Video Modes reference link to yield the above results and finetune.

After rebooting the Pi, your monitor firmware might show errors like 'out of sync' or 'resolution not supported'. Lower the resolution and/or refresh rate and try again.

After testing I got good results even with small Chinese $3 adaptors connected to the cheapest monitors available in the shop. Out of the box the converter gave a blank screen with the monitor going into powersave mode seconds after. After following the above steps my /boot/config.txt now shows:

No +5v supply from setop box like tatasky dishtv hd box in hdmi output so converter not work. it can work properly after supply +5v in pin no.2of hdmi port.