HDMI Works in safe mode... But not much else

I have my board plugged into my monitor as an HDMI input. I can get to the Rasbian desktop by uncommenting the "hdmi_safe=1" in config.txt. However, I'd like to work in a resolution that doesn't make my eye's bleed, so I've been trying for the last couple days to find the correct settings in the config.txt, and I've about given up. Any help would be great. I've tried several modes, but no matter what I try I get no image and the following from tvservice -s:

pi@raspberrypi ~ $ /opt/vc/bin/tvservice -s
state: HPD low|HDMI off|NTSC mode|composite CP off (0x140001), 720x480 @ 60Hz, interlaced

What steps do I need to take to work through this problem? Thanks in advanced. The monitor in question is a Acer H243HX.

Here is my results for CEA testing:

pi@raspberrypi ~ $ /opt/vc/bin/tvservice -m CEA
Group CEA has 0 modes:

Here is my results for DMT testing:

pi@raspberrypi ~ $ /opt/vc/bin/tvservice -m DMT
Group DMT has 0 modes:

Here is my edid parser output:

Parsing edid.dat...
HDMI:EDID version 1.3, 1 extensions, screen size 53x29 cm
HDMI:EDID features - videodef 0x80 standby suspend active off; colour encoding:RGB444|YCbCr422; sRGB is not default colourspace; preferred format is native; does not support GTF
HDMI:EDID found monitor name descriptor tag 0xfc
HDMI:EDID monitor name is H243H
HDMI:EDID found monitor range descriptor tag 0xfd
HDMI:EDID monitor range offsets: V min=0, V max=0, H min=0, H max=0
HDMI:EDID monitor range: vertical is 56-76 Hz, horizontal is 31-83 kHz, max pixel clock is 180 MHz
HDMI:EDID monitor range does not support GTF
HDMI:EDID found monitor S/N descriptor tag 0xff
HDMI:EDID found unknown detail timing format: 1920x1080p hfp:48 hs:32 hbp:80 vfp:3 vs:5 vbp:23 pixel clock:138 MHz
HDMI:EDID established timing I/II bytes are AF CF 00
HDMI:EDID found DMT format: code 4, 640x480p @ 60 Hz in established timing I/II
HDMI:EDID found DMT format: code 5, 640x480p @ 72 Hz in established timing I/II
HDMI:EDID found DMT format: code 6, 640x480p @ 75 Hz in established timing I/II
HDMI:EDID found DMT format: code 8, 800x600p @ 56 Hz in established timing I/II
HDMI:EDID found DMT format: code 9, 800x600p @ 60 Hz in established timing I/II
HDMI:EDID found DMT format: code 10, 800x600p @ 72 Hz in established timing I/II
HDMI:EDID found DMT format: code 11, 800x600p @ 75 Hz in established timing I/II
HDMI:EDID found DMT format: code 16, 1024x768p @ 60 Hz in established timing I/II
HDMI:EDID found DMT format: code 17, 1024x768p @ 70 Hz in established timing I/II
HDMI:EDID found DMT format: code 18, 1024x768p @ 75 Hz in established timing I/II
HDMI:EDID found DMT format: code 36, 1280x1024p @ 75 Hz in established timing I/II
HDMI:EDID standard timings block x 8: 0x8180 714F 9500 950F A940 B300 0101 0101
HDMI:EDID found DMT format: code 35, 1280x1024p @ 60 Hz (5:4) in standard timing 0
HDMI:EDID found DMT format: code 21, 1152x864p @ 75 Hz (4:3) in standard timing 1
HDMI:EDID found DMT format: code 47, 1440x900p @ 60 Hz (16:10) in standard timing 2
HDMI:EDID found DMT format: code 48, 1440x900p @ 75 Hz (16:10) in standard timing 3
HDMI:EDID found DMT format: code 51, 1600x1200p @ 60 Hz (4:3) in standard timing 4
HDMI:EDID found DMT format: code 58, 1680x1050p @ 60 Hz (16:10) in standard timing 5
HDMI:EDID parsing v3 CEA extension 0
HDMI:EDID monitor support - underscan IT formats:yes, basic audio:yes, yuv444:yes, yuv422:yes, #native DTD:2
HDMI:EDID found preferred CEA detail timing format: 720x480p @ 60 Hz (2)
HDMI:EDID found CEA detail timing format: 1280x720p @ 60 Hz (4)
HDMI:EDID found CEA detail timing format: 1920x1080i @ 60 Hz (5)
HDMI:EDID found CEA detail timing format: 1280x720p @ 50 Hz (19)
HDMI:EDID found CEA detail timing format: 1920x1080i @ 50 Hz (20)
HDMI:EDID found audio format 2 channels PCM, sample rate: 32|44|48|88|96|176|192 kHz, sample size: 16|20|24 bits
HDMI:EDID found CEA format: code 1, 640x480p @ 60Hz
HDMI:EDID found CEA format: code 2, 720x480p @ 60Hz
HDMI:EDID found CEA format: code 3, 720x480p @ 60Hz
HDMI:EDID found CEA format: code 4, 1280x720p @ 60Hz (native)
HDMI:EDID found CEA format: code 5, 1920x1080i @ 60Hz
HDMI:EDID found CEA format: code 6, 1440x480i @ 60Hz
HDMI:EDID found CEA format: code 7, 1440x480i @ 60Hz
HDMI:EDID found CEA format: code 16, 1920x1080p @ 60Hz
HDMI:EDID found CEA format: code 17, 720x576p @ 50Hz
HDMI:EDID found CEA format: code 18, 720x576p @ 50Hz
HDMI:EDID found CEA format: code 21, 1440x576i @ 50Hz
HDMI:EDID found CEA format: code 19, 1280x720p @ 50Hz (native)
HDMI:EDID found CEA format: code 31, 1920x1080p @ 50Hz
HDMI:EDID found CEA format: code 20, 1920x1080i @ 50Hz
HDMI:EDID found HDMI VSDB length 6
HDMI:EDID HDMI VSDB has physical address 1.0.0.0
HDMI:EDID HDMI VSDB supports AI:no, dual link DVI:no
HDMI:EDID HDMI VSDB deep colour support - 48-bit:no 36-bit:no 30-bit:yes DC_yuv444:no
HDMI:EDID HDMI VSDB has no latency information
HDMI:EDID filtering formats with pixel clock > 162 MHz or h. blanking > 1023
HDMI:EDID best score mode is now CEA (1) 640x480p @ 60 Hz with pixel clock 25 MHz (score 136864)
HDMI:EDID best score mode is now CEA (2) 720x480p @ 60 Hz with pixel clock 27 MHz (score 5162208)
HDMI:EDID CEA mode (3) 720x480p @ 60 Hz with pixel clock 27 MHz has a score of 141472
HDMI:EDID CEA mode (4) 1280x720p @ 60 Hz with pixel clock 74 MHz has a score of 4765888
HDMI:EDID DMT mode (4) 640x480p @ 60 Hz with pixel clock 25 MHz has a score of 18432
HDMI:EDID CEA mode (5) 1920x1080i @ 60 Hz with pixel clock 74 MHz has a score of 4348832
HDMI:EDID DMT mode (5) 640x480p @ 72 Hz with pixel clock 31 MHz has a score of 22118
HDMI:EDID CEA mode (6) 1440x480i @ 60 Hz with pixel clock 27 MHz has a score of 120736
HDMI:EDID DMT mode (6) 640x480p @ 75 Hz with pixel clock 31 MHz has a score of 23040
HDMI:EDID CEA mode (7) 1440x480i @ 60 Hz with pixel clock 27 MHz has a score of 120736
HDMI:EDID DMT mode (8) 800x600p @ 56 Hz with pixel clock 36 MHz has a score of 26880
HDMI:EDID DMT mode (9) 800x600p @ 60 Hz with pixel clock 40 MHz has a score of 28800
HDMI:EDID DMT mode (10) 800x600p @ 72 Hz with pixel clock 50 MHz has a score of 34560
HDMI:EDID DMT mode (11) 800x600p @ 75 Hz with pixel clock 49 MHz has a score of 36000
HDMI:EDID CEA mode (16) 1920x1080p @ 60 Hz with pixel clock 148 MHz has a score of 348832
HDMI:EDID DMT mode (16) 1024x768p @ 60 Hz with pixel clock 65 MHz has a score of 47185
HDMI:EDID CEA mode (17) 720x576p @ 50 Hz with pixel clock 27 MHz has a score of 141472
HDMI:EDID DMT mode (17) 1024x768p @ 70 Hz with pixel clock 75 MHz has a score of 55050
HDMI:EDID CEA mode (18) 720x576p @ 50 Hz with pixel clock 27 MHz has a score of 141472
HDMI:EDID DMT mode (18) 1024x768p @ 75 Hz with pixel clock 78 MHz has a score of 58982
HDMI:EDID CEA mode (19) 1280x720p @ 50 Hz with pixel clock 74 MHz has a score of 3738240
HDMI:EDID CEA mode (20) 1920x1080i @ 50 Hz with pixel clock 74 MHz has a score of 3307360
HDMI:EDID CEA mode (21) 1440x576i @ 50 Hz with pixel clock 27 MHz has a score of 120736
HDMI:EDID DMT mode (21) 1152x864p @ 75 Hz with pixel clock 108 MHz has a score of 174649
HDMI:EDID CEA mode (31) 1920x1080p @ 50 Hz with pixel clock 148 MHz has a score of 307360
HDMI:EDID DMT mode (35) 1280x1024p @ 60 Hz with pixel clock 108 MHz has a score of 178643
HDMI:EDID DMT mode (36) 1280x1024p @ 75 Hz with pixel clock 135 MHz has a score of 98304
HDMI:EDID DMT mode (47) 1440x900p @ 60 Hz with pixel clock 106 MHz has a score of 177760
HDMI:EDID DMT mode (48) 1440x900p @ 75 Hz with pixel clock 136 MHz has a score of 197200
HDMI:EDID DMT mode (51) 1600x1200p @ 60 Hz with pixel clock 162 MHz has a score of 215200
HDMI:EDID DMT mode (58) 1680x1050p @ 60 Hz with pixel clock 146 MHz has a score of 205840-3205840-3
HDMI:EDID preferred mode remained as CEA (2) 720x480p @ 60 Hz with pixel clock 27 MHz
HDMI:EDID has HDMI support and audio support
edid_parser exited with code 0

johnbeetem over 13 years ago

A good starting point is the RasPi Troubleshooting Wiki: http://elinux.org/R-Pi_Troubleshooting#No_HDMI_output_at_all.

There are myriad config.txt options at: http://elinux.org/RPi_config.txt#Video_mode_configuration. It says that "hdmi_safe=1" is equivalent to "hdmi_force_hotplug=1, config_hdmi_boost=4, hdmi_group=1, hdmi_mode=1, disable_overscan=0" Try putting those in place of "hdmi_safe=1": you should get the same behavior. Then change each option individually and see which one causes your monitor to fail. A good possibility is "hdmi_force_hotplug", but there are lots of options as you well know.
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Former Member over 13 years ago in reply to johnbeetem

Thanks for the reply John. I've seen that documentation prior to posting here and tried each step. In a fit of rage last night, I deleted the config.txt, restored a old back up of it and set only "hdmi_group=1", "hdmi_mode=4", "hdmi_force_hotplug=1" and it magically started working. I also verified that "hdmi_mode=16" gives me 1080p and it worked great.

I could swear I tried that orgionally, but in retrospect, I think I probably had other options select that may have been screwing it up.

edit: changed type in group to mode.
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Former Member over 13 years ago in reply to Former Member

you may have made a typo, it looks like you are setting hdmi_group
to both 1 and 4.
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Former Member over 13 years ago in reply to Former Member

I wouldn't put it past me, but at home on my system I was just uncommenting the defaults in the config.txt and editing the numbers. I had to retype them here at work to reply to John's post, which is where the problem you are seeing came from. I'll edit my origional post to reflect the correct values.
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