I've just received a BeagleBone Black, but I can't get the HDMI output to work for love nor money. I'm using a known-good micro-HDMI to HDMI adapter, and I've tried connecting it to a 1280x1024 monitor via a HDMI to DVI-D cable and to a 1080p TV using a straight HDMI cable. The TV knows there's something there (it disables inputs that are inactive, and it allows me to select the HDMI input to which the BeagleBone is connected) but says "No Signal," whereas the monitor just says "No Signal."
I've tried both the preinstalled Angstrom Linux and the console version of Ubuntu 13.04 - no dice with either. I've got a proper micro-HDMI to HDMI cable arriving tomorrow, just in case there's something the BeagleBone Black doesn't like about the adapter I'm using (although I tested it on a Nokia 808 PureView, and it worked fine.)
Anybody any ideas what might be preventing the BeagleBone Black from bringing up a display? I can see nothing in the kernel logs that sheds any light on the matter. It sees the virtual HDMI cape in Slot 6 and appears to load the firmware cape-boneblack-hdmi-00A0.dtbo fine.
Chatting to some of the guys on IRC, and in the process made some logs. These are from Ubuntu 13.04:
Booting with an HDMI TV connected, forced to 720@50Hz:
http://pastebin.com/ESrPKVdJ
Booting with my monitor (via HDMI-to-DVI cable) attached, no forced video mode:
http://pastebin.com/kKN4Ejiq
Booting with my monitor (via HDMI-to-DVI cable) attached, forced to 720p@60Hz:
http://pastebin.com/052V04r3
Each time, there is no video output - although, as mentioned, the TV at least knows there's something there. The BeagleBone Black also brings a second monitor out of standby, but it then times out, says no video signal present, returns to standby, wakes up, says no video signal present, returns to standby, wakes up... And so on, and so forth.
-Gareth
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On Tuesday, 7 May 2013 16:52:20 UTC+1, Gerald wrote:Give this a try. I expect this to be the production image.
No joy, I'm afraid. Booted the SD card - no image on monitor - and left it to do its thing while I had my tea. SSH'd in an hour or so later, made sure nothing was running, shut the system down. Removed SD card, rebooted from eMMC - still no image on monitor.
-Gareth
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On Tuesday, 7 May 2013 18:21:20 UTC+1, Gerald wrote:Request an RMA!
I was afraid you would say that. I ordered it from Farnell here in the UK, and they're completely out of stock until June. Normally, that'd be little more than an inconvenience - but I'm reviewing the device for Imagine Publishing's Linux User & Developer Magazine with a deadline of Monday.
You're thinking it definitely sounds like a hardware fault with the board, then? Just my luck!
-Gareth
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HelloRecently got a BBB and have updated it to the latest revision of the Angstrom distribution and also did the whole opkg upgrade via SSH, but I cant for the life of me get anything out of the HDMI.So far this BBB is like turning on a PC without turning on the monitor, really struggling to do anything satisfying on it yet. I just got my micro HDMI to HDMI cable in the post today so thought I would be all set, but the TV and my monitor just stick their nose up at the BBB and do nothing. Its like the cable isn't even plugged in.Yes I can get into SSH and do stuff, but I am not a linux guru so have little to do there at this stage, and I can blink lights and turn on GPIO etc via the Cloud9 IDE, but thats about it. I assume this thing boots to a GUI or something by default? Have watched a few vids on youtube, and its simply plug plug and go and they get a GUI.I must either be stupid, dont know what im doing, or something is wrong...James
On Wednesday, May 8, 2013 2:06:19 AM UTC+12, ghalf...@googlemail.com wrote:I've just received a BeagleBone Black, but I can't get the HDMI output to work for love nor money. I'm using a known-good micro-HDMI to HDMI adapter, and I've tried connecting it to a 1280x1024 monitor via a HDMI to DVI-D cable and to a 1080p TV using a straight HDMI cable. The TV knows there's something there (it disables inputs that are inactive, and it allows me to select the HDMI input to which the BeagleBone is connected) but says "No Signal," whereas the monitor just says "No Signal."
I've tried both the preinstalled Angstrom Linux and the console version of Ubuntu 13.04 - no dice with either. I've got a proper micro-HDMI to HDMI cable arriving tomorrow, just in case there's something the BeagleBone Black doesn't like about the adapter I'm using (although I tested it on a Nokia 808 PureView, and it worked fine.)
Anybody any ideas what might be preventing the BeagleBone Black from bringing up a display? I can see nothing in the kernel logs that sheds any light on the matter. It sees the virtual HDMI cape in Slot 6 and appears to load the firmware cape-boneblack-hdmi-00A0.dtbo fine.
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Hi Gerald,Yes I had read that and followed the instructions, but still nothing. TV enables me to select the HDMI when its plugged in, but says there is nothing connected once it is plugged in. Monitor is just blank.I don't have a USB to Serial cable for the BBB, just another thing I didn't realize I would have to buy extra...Ill have a read on the net again and see what its compatible with and see if I do have a USB to Serial cable that will work with this.James
Hi GeraldNo need, after using the latest image that just came out for the BBB, 20/05/2013, it works correctly.Boots to the TV at 720p. Had to adjust the TV to be +1 to allow it to display the full image, but all looks good now.Thanks for the help.RegardsJames
I'm still having trouble with HDMI flicker after updating to:http://dominion.thruhere.net/koen/angstrom/beaglebone/BBB-eMMC-flasher-2013.05.20.img.xz
The HDMI was working (without audio) with the original eMMC image that came with the BBB.Is there a patch? In my google searching I did find a youtube video purporting to show the same issue I had and a patch for the hdmi framer.
1) Power on the board with it connected to the display. Make sure the display is not in a sleep mode.
2) Wait for the board to finish the initial boot, about 3 minutes.
3) You should see a login. Type "root" and hit ENTER. [Where will I see this? On the display? (Isn't that the problem we are trying to solve?)]
4) Type "cd /sys/class/drm/card0/card0-HDMI-A-1/" and hit ENTER.
5) Type "parse-edid edid"and hit ENTER.
6) You should get a printout similar to the one below: .....
Additional guidance please.
Thanks,
Steve
That link I posted above for the latest image, I cant actually remember where I got it from now.... Trawling seems to have found it.
When I go to the official channels, its still an old image showing.Left hand not connected to the right hand somehow?Have no idea who is who and who does what when it comes to releasing of distributions. So maybe that link isnt official yet and still has issues?.... who knows.Makes the LCD4 CAPE work along with my HDMI, so im not complaining at this stage :)
I have a micro-hdmi adaptor too, however the video works with the Aoril-12 angstrom build. The more recent builds up to May 20 all flicker. Would this be due to the adaptor?
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login as: root
root@192.168.7.2's password:
root@beaglebone:# cat /proc/version
Linux version 3.8.13 (koen@rrMBP) (gcc version 4.7.3 20130205 (prerelease) (Linaro GCC 4.7-2013.02-01) ) #1 SMP Tue Jun 18 02:11:09 EDT 2013
root@beaglebone:~# cd /sys/class/drm/card0/card0-HDMI-A-1/
root@beaglebone:/sys/class/drm/card0/card0-HDMI-A-1# parse-edid edid
parse-edid: parse-edid version 2.0.0
parse-edid: IO error reading EDID
root@beaglebone:/sys/class/drm/card0/card0-HDMI-A-1#
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It's a Samsung series 7 (D7000) Smart TV - model 2011And a TCL LCD TV 24"
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login as: root
root@192.168.7.2's password:
root@beaglebone:~# cat /proc/cmdline
console=ttyO0,115200n8 video=HDMI-A-1:1920x1080@24 root=/dev/mmcblk0p2 ro rootfstype=ext4 rootwait
root@beaglebone:~# fbset
mode "1024x768-0"
# D: 0.000 MHz, H: 0.000 kHz, V: 0.000 Hz
geometry 1024 768 1024 768 16
timings 0 0 0 0 0 0 0
accel true
rgba 5/11,6/5,5/0,0/0
endmode
root@beaglebone:~# xrandr
Can't open display
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You know. If there was patch for this, I would think it would already be included. If it is working with the original, then I suggest you go back to he original image.I have no idea what is going on here with the DRM driver and all those TVs and monitors out there. I would welcome some help from anyone that would like to help us figure out why so many TVs and monitors work flawlessly and why some do not.
Pardon the funky angle, had to work around some obstacles :)
Also, haven't had the chance to try the audio yet.
optargs=video=HDMI-A-1:640x480@60
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parse-edid: parse-edid version 2.0.0parse-edid: EDID checksum passed.# EDID version 1 revision 3Section "Monitor"# Block type: 2:0 3:ff
# Block type: 2:0 3:fcIdentifier "Philips 226V4"VendorName "PHL"ModelName "Philips 226V4"
# Block type: 2:0 3:ff
# Block type: 2:0 3:fc
# Block type: 2:0 3:fd
HorizSync 30-83VertRefresh 56-76
# Max dot clock (video bandwidth) 170 MHz
# DPMS capabilities: Active off:yes Suspend:no Standby:no
Mode "1920x1080" # vfreq 60.000Hz, hfreq 67.500kHzDotClock 148.500000HTimings 1920 2008 2052 2200VTimings 1080 1084 1089 1125Flags "+HSync" "+VSync"
EndMode# Block type: 2:0 3:ff
# Block type: 2:0 3:fc
# Block type: 2:0 3:fd
EndSection
On Mar 14, 2015 11:43 AM, "Upol Ryskulova" <upo...@gmail.com> wrote:
>
> Hello Gerald,
> I faced with the same problem as Glenn
> "I appear to be getting is that during the initial boot, I get the BeagleBone logo appear in the top left of the screen. This also changes size depending on what resolution I set in uEnv.txt .After this image disappears and a little more time has passed, I get "No Signal" on my 32" TV or "Power Saving Mode HDMI" on my LG Flatron L246WH 24" Monitor." said above. Except I have different LCD Screen. My parse-edid edid
>>
>> parse-edid: parse-edid version 2.0.0
>> parse-edid: EDID checksum passed.
>>
>> # EDID version 1 revision 3
>> Section "Monitor"
>> # Block type: 2:0 3:ff
>> # Block type: 2:0 3:fc
>> Identifier "Philips 226V4"
>> VendorName "PHL"
>> ModelName "Philips 226V4"
>> # Block type: 2:0 3:ff
>> # Block type: 2:0 3:fc
>> # Block type: 2:0 3:fd
>> HorizSync 30-83
>> VertRefresh 56-76
>> # Max dot clock (video bandwidth) 170 MHz
>> # DPMS capabilities: Active off:yes Suspend:no Standby:no
>>
>> Mode "1920x1080" # vfreq 60.000Hz, hfreq 67.500kHz
>> DotClock 148.500000
>> HTimings 1920 2008 2052 2200
>> VTimings 1080 1084 1089 1125
1080p @ 60hz!!
http://elinux.org/Beagleboard:BeagleBoneBlack_HDMI
Yes one if those older kernels sorta worked, but HDMI audio was toast. The source for bone41/70 is available.. As you have the hardware, only you can test the changes.
> For more options, visit https://groups.google.com/d/optout.
On Mar 14, 2015 11:43 AM, "Upol Ryskulova" <upo...@gmail.com> wrote:
>
Are they 'exactly' the same versions? Including the u-boot version?
I still think it's lucky one even works at full 1080p...
>
> Upol
>
>
>
> 29 Aralık 2013 Pazar 22:28:57 UTC+2 tarihinde Gerald yazdı:
>>
>> I assume you followed all the instructions on the Wiki, so I guess the board is bad. I would to an RMA request.
>>
>> Gerald
>>
>>
>>
>> On Sat, Dec 28, 2013 at 10:57 AM, <aeh...@gmail.com> wrote:
>>>
>>> Hi Gerald! I have the same problem as the people on here. Did an MMC reflash to latest software and thought maybe it is a faulty HDMI cable. I have since received a dragon board with the same micro hdmi connector as the beaglebone. Dragonboard HDMI works fine, BeagleBone does not.
>>> Any ideas?
>>> Thanks, Alex
>>>
>>>
>>> On Tuesday, May 7, 2013 7:06:19 AM UTC-7, ghalf...@googlemail.com wrote:
>>>>
>>>> I've just received a BeagleBone Black, but I can't get the HDMI output to work for love nor money. I'm using a known-good micro-HDMI to HDMI adapter, and I've tried connecting it to a 1280x1024 monitor via a HDMI to DVI-D cable and to a 1080p TV using a straight HDMI cable. The TV knows there's something there (it disables inputs that are inactive, and it allows me to select the HDMI input to which the BeagleBone is connected) but says "No Signal," whereas the monitor just says "No Signal."
>>>>
>>>> I've tried both the preinstalled Angstrom Linux and the console version of Ubuntu 13.04 - no dice with either. I've got a proper micro-HDMI to HDMI cable arriving tomorrow, just in case there's something the BeagleBone Black doesn't like about the adapter I'm using (although I tested it on a Nokia 808 PureView, and it worked fine.)
>>>>
>>>> Anybody any ideas what might be preventing the BeagleBone Black from bringing up a display? I can see nothing in the kernel logs that sheds any light on the matter. It sees the virtual HDMI cape in Slot 6 and appears to load the firmware cape-boneblack-hdmi-00A0.dtbo fine.
>>>
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>>
>>
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Hello,
Hello Gerald,