Recent content by /df

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    Investigating the HDMI "Green Screen After a Few Seconds" Problem

    Maybe ageing, or dust? The HDMI article I linked above explains that there is a capacitance limit outside which the I2C/DDC data exchanges that set up the link may be corrupted (PCB I2C: 400pF, DDC: 700pF). While a single domestic link wouldn't exceed that limit, might not ageing or faults and...
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    Investigating the HDMI "Green Screen After a Few Seconds" Problem

    If my memory stretched back to the OP, I wouldn't have asked those questions. A "couple of seconds" seems to finger the HDCP exchange. It's the same in the linked video above (~2s of video and then green). Two seconds is the period for repeated HDCP exchanges. As the HDMI transmitter...
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    Investigating the HDMI "Green Screen After a Few Seconds" Problem

    The author remarks that corrupt EDID would result in green or pink screen. I don't know whether he (?) is referring to the palette or to the sort of blank green screen that is being investigated. Occasionally my Toshiba TV fails to agree with the HDR if the latter is already on (there is a cheap...
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    Investigating the HDMI "Green Screen After a Few Seconds" Problem

    I couldn't see that in Wikipedia, but good details here and tl;dr here.
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    Start Up Fails When HDD Connected

    I wonder where the HD-Fox T2 reset button leads? Sadly it's part of the front panel which makes it unclear whether it's handled locally (perhaps generating a short interruption to the power supply) or routed to the main board. While I had the board, magnifying glass and light together, I found...
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    Start Up Fails When HDD Connected

    Other (and previously discovered) copies are to be found on the web. This was the best location today. The schematic and the "preliminary hardware module description" are definitely illuminating.
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    Debug firmware for HDR Fox T2 - working?

    (What is?) HDMI is managed by the settop program rather than the kernel. According to some Chinese bloke -- Sam (Zhen Feng) -- who wrote this up in his blog when it was current: NEXUS_PlatformSettings platformSettings; NEXUS_Platform_GetDefaultSettings(&platformSettings); //.... Modify the...
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    Debug firmware for HDR Fox T2 - working?

    The same problem was reported here which was after the release of 3.13k. Maybe the latest debug kernels have never worked, or some additional config is needed.
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    Start Up Fails When HDD Connected

    In a related thread, I suggested, not entirely seriously Other hack solutions: bypass the on-board supply and fit a 5V+12V brick with a SATA adaptor, wiring its mains cable to the input of the power supply (CN1), or just a scrap 5V/1A brick wired in place of the LDO regulator (U52) o/p (SG...
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    Boot loop

    Some sort of small timer+relay circuit (as small as a circuit with 2 2-pole or 1 4-pole relay can be) could be interposed in the disk power cable to automate that process. Actually you can get a 4-pole timer-on relay as a single unit, but at RS it's at least as expensive as a second-hand HDR-Fox...
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    Investigating the HDMI "Green Screen After a Few Seconds" Problem

    Does this mean that it's somehow failing (or perhaps failing to fail) to interpret some copy-protect signal in the broadcast stream?
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    Software update ?

    Possibly there is a corrupt recording on the disk that causes the settop program to crash while scanning the disk for DLNA indexing. Using the HDR-Fox T2 OEM firmware, you'd need a large external USB drive to test this. You would create a folder on the external drive and move your recordings...
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    Hardware clock incorrectly set

    The ntpclient in /usr/bin is presumably the one that the settop binary uses, suggested by this strings output fragment: ... uk.pool.ntp.org ntpclient ... Interesting that Humax programmed the UK servers into what otherwise appears to be a localisable product. The Maintenance Mode script...
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    Investigating the HDMI "Green Screen After a Few Seconds" Problem

    "HDCP pass-through": not a good sign; a dodgy spec-busting model is needed, as in ETW's link.
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    Investigating the HDMI "Green Screen After a Few Seconds" Problem

    Not so much for 10 years, at least with HDMI 1.x. As the sage authors of the Wikipedia article note, That "timing issue" would be a candidate for being fixed by a matrix switch.
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