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
I assume you followed all the instructions on the Wiki, so I guess the board is bad. I would to an RMA request.
Gerald
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 56-76Max 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
Flags “+HSync” “+VSync”
EndModeBlock type: 2:0 3:ff
Block type: 2:0 3:fc
Block type: 2:0 3:fd
EndSection
I did try to give defaul screen resolution in uEnv.txt as Glenn said. But it is just changing the size of the debian logo for 2-3 seconds and then screen turning to black again. I upgraded to linux 3.8.13-bone70 today from linux 3.8.13-bone41 just downloaded it ran ./install-me.sh then rebooted. I am working with two beaglebone black boards right now. One is perfectly running with lcd screen and hdmi cable without any modification to uEnv.xt file or something else. Both BBB boards have same kernel and os versions. I appreciate all your advice and help.
Upol
29 Aralık 2013 Pazar 22:28:57 UTC+2 tarihinde Gerald yazdı:
So you have one board that works and another that does not work with the same exact software?
Gerald
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 edidparse-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 56-76Max 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.
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 edidparse-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 56-76Max 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
Flags “+HSync” “+VSync”
EndModeBlock type: 2:0 3:ff
Block type: 2:0 3:fc
Block type: 2:0 3:fd
EndSection
I did try to give defaul screen resolution in uEnv.txt as Glenn said. But it is just changing the size of the debian logo for 2-3 seconds and then screen turning to black again. I upgraded to linux 3.8.13-bone70 today from linux 3.8.13-bone41 just downloaded it ran ./install-me.sh then rebooted. I am working with two beaglebone black boards right now. One is perfectly running with lcd screen and hdmi cable without any modification to uEnv.xt file or something else. Both BBB boards have same kernel and os versions. I appreciate all your advice and help.
Are they ‘exactly’ the same versions? Including the u-boot version?
I still think it’s lucky one even works at full 1080p…
Hello Gerald & Robert,
Actually I am working with three BBB boards, two of them are ok with LCD display I am using. They all have preinstalled linux 3.8.13-bone70. I had checked the link you send me Robert. (I guess it is really exceptional case that BBBs displaying on 1080@60 lcd screen). On one BBB that I had a problem I reinstalled linux 3.8.13-bone41 accidentally, and after upgraded to bone70. Before intallation bone41 it did not even display anything on LCD, but after upgrade to bone70 at least it is displayin debian logo for 2-3 seconds. I am not sure whether they have same u-boot version. Is it ok if I update you tommorow?
Hello Robert,
I have checked my u-boot version. On working two BBB boards u-boot version is U-Boot 2014.04-00015-gb4422bd. On problematic BBB board it is U-Boot 2013.10-00016-ga0e6bc6.
Do I need to upgrade my u-boot to the 2014.04-00015 version?
Thank you in advance.
Regards,
Upol
Well, "if" that's truly the "only" difference.....
Regards,
I reinstalled preinstalled image to BBB (debian) . Now it is displaying on LCD screen with 1080@60.
Thank you.
Hello,
I am using Beagle bone Black Rev C with 7.11 image and I have connected the device to LCD monitor using micro HDMI to HDMI cable. Before it was working fine but suddenly it started showing blank screen.
I tried various steps:
- reflashed the device
- parse-edid edid to check about monitor
- did xrandr --verbose with 1024x720@60 as well as 50 rate and changed the same in /boot/uEnv.txt
- saw about the device connection also in /proc/cmdline also.
Everything was normal as before but it did is showing blank screen.
Please someone help me with this one.
By the way I am using sony Ericson HDMI cable. So, the use of low quality is outdated.
Gerald and Robert I am following this thread for past 2-3 days continously and tried almost all the steps in the comments but no use. Someone help me with this.
Thanks in advance
Regards,
Ashwin