I've confirmed the cable isn't good. I plugged the cable into my Sony Ericsson Xperia Neo, there is output on my HDMI monitor. But nothing happens when connected to BBB. I know there are different versions for the HDMI spec. Do you mean I have to use the cable that supports newer version?
honercek On Monday, September 30, 2013 10:01:37 PM UTC+8, Gerald wrote: > > OK. I would look at the cable. We have had several instances of people > with bad HDMI cables. > > Gerald > > > > On Mon, Sep 30, 2013 at 8:57 AM, Chien-Yu Chen <hone...@gmail.com<javascript:> > > wrote: > >> I've updated BBB using the newest firmware, >> BBB-eMMC-flasher-2013.09.15.img. >> Still have the same problem. >> >> On Thursday, September 26, 2013 11:16:26 PM UTC+8, Chien-Yu Chen wrote: >>> >>> I met similar issue as well. My monitor is ASUS LS221H which can >>> correctly display outputted from my mobile phone Xperia Neo V via HDMI. >>> From here, we can confirm the monitor and the cable both function well. >>> After powering up, sometimes I could see the logo from BeagleBone Black. >>> Then, what I could see is just no signal reported from the monitor. >>> >>> I referenced the page, http://circuitco.com/**support/index.php?title=** >>> BeagleBoneBlack_HDMI<http://circuitco.com/support/index.php?title=BeagleBoneBlack_HDMI>, >>> >>> and tried something described in the page via terminal >>> https://192.168.7.2/ >>> Followings are some information of my board. >>> >>> *root@beaglebone:/sys/class/drm/card0/card0-HDMI-A-1# xrandr --verbose >>> >>> * >>> Screen 0: minimum 320 x 200, current 1280 x 720, maximum 2048 x 2048 >>> >>> >>> HDMI-0 connected 1280x720+0+0 (0x42) normal (normal left inverted right >>> x axis y axis) 474mm x 296mm >>> >>> Identifier: 0x40 >>> >>> >>> Timestamp: 1523547016 >>> Subpixel: unknown >>> Gamma: 1.0:1.0:1.0 >>> Brightness: 1.0 >>> Clones: >>> CRTC: 0 >>> CRTCs: 0 >>> Transform: 1.000000 0.000000 0.000000 >>> 0.000000 1.000000 0.000000 >>> 0.000000 0.000000 1.000000 >>> filter: >>> EDID: >>> **00ffffffffffff000469f122010101**01 >>> **20130103802f1e782e78f5a655489b**26 >>> **125054bfef80b30081809500950f90**40 >>> **714f0101010121399030621a274068**b0 >>> **3600da281100001c000000ff003938**4c >>> **4d56443030343433360a000000fd00**38 >>> **4b1f5111000a202020202020000000**fc >>> **00415355532d4c5332323148ffff01**ff >>> **02031e764b909f8594849303120107**16 >>> **230907078301000065030c00000002**3a >>> **801871382d40582c9600da28110000**18 >>> **023a80d072382d40102c4580da2811**00 >>> **001e011d8018711c1620582c2500da**28 >>> **1100009e011d80d0721c1620102c25**80 >>> **da281100009e011d00bc52d01e20b8**28 >>> **5540da281100001e00000000000000**dd >>> 1280x720 (0x41) 74.2MHz +HSync +VSync >>> h: width 1280 start 1720 end 1760 total 1980 skew 0 clock >>> 37.5KHz >>> v: height 720 start 725 end 730 total 750 clock >>> 50.0Hz >>> 1280x720 (0x42) 74.2MHz +HSync +VSync *current >>> h: width 1280 start 1390 end 1430 total 1650 skew 0 clock >>> 45.0KHz >>> v: height 720 start 725 end 730 total 750 clock >>> 60.0Hz >>> 720x576 (0x43) 27.0MHz -HSync -VSync >>> h: width 720 start 732 end 796 total 864 skew 0 clock >>> 31.2KHz >>> v: height 576 start 581 end 586 total 625 clock >>> 50.0Hz >>> 720x480 (0x44) 27.0MHz -HSync -VSync >>> h: width 720 start 736 end 798 total 858 skew 0 clock >>> 31.5KHz >>> v: height 480 start 489 end 495 total 525 clock >>> 59.9Hz >>> 640x480 (0x45) 25.2MHz -HSync -VSync >>> h: width 640 start 656 end 752 total 800 skew 0 clock >>> 31.5KHz >>> v: height 480 start 490 end 492 total 525 clock >>> 59.9Hz >>> >>> *root@beaglebone:/sys/class/drm/card0/card0-HDMI-A-1# 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:fd >>> # Block type: 2:0 3:fc >>> Identifier "ASUS-LS221Hÿÿ" >>> VendorName "ACI" >>> ModelName "ASUS-LS221Hÿÿ" >>> # Block type: 2:0 3:ff >>> # Block type: 2:0 3:fd >>> HorizSync 31-81 >>> VertRefresh 56-75 >>> # Max dot clock (video bandwidth) 170 MHz >>> # Block type: 2:0 3:fc >>> # DPMS capabilities: Active off:yes Suspend:no Standby:no >>> >>> >>> >>> Mode "1680x1050" # vfreq 59.954Hz, hfreq 65.290kHz >>> DotClock 146.250000 >>> HTimings 1680 1784 1960 2240 >>> VTimings 1050 1053 1059 1089 >>> Flags "+HSync" "-VSync" >>> EndMode >>> # Block type: 2:0 3:ff >>> # Block type: 2:0 3:fd >>> # Block type: 2:0 3:fc >>> EndSection >>> >>> *ID.txt* >>> Cloud9 GNOME Image 2013.06.20 >>> >>> *root@beaglebone:~# cat /proc/cmdline * >>> console=ttyO0,115200n8 video=HDMI-A-1::640x480@60 root=/dev/mmcblk0p2 ro >>> rootfstype=ext4 rootwait >>> >>> Finally, the three steps below work like a charm >>> >>> *root@beaglebone:~# export XAUTHORITY=`ls /var/run/gdm/auth-for-root-*/ >>> database` * >>> *root@beaglebone:~# export DISPLAY=:0.0 * >>> *root@beaglebone:~# xrandr --output HDMI-0 --mode 1280x720 --rate 60* >>> >>> *root@beaglebone:/sys/class/drm/card0/card0-HDMI-A-1# fbset* >>> >>> >>> >>> mode "1280x720-0" >>> # D: 0.000 MHz, H: 0.000 kHz, V: 0.000 Hz >>> geometry 1280 720 1280 720 16 >>> timings 0 0 0 0 0 0 0 >>> accel true >>> rgba 5/11,6/5,5/0,0/0 >>> endmode >>> >>> >>> After these, I do see the output on my monitor. >>> >>> But anyone can tell me, if I tried >>> optargs=video=HDMI-A-1:**1280x720@60 in uEnv.txt >>> >>> The result is still no signal? >>> >>> Thanks >>> honercek >>> >>> >>> >>> >>> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to beagleboard...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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