hdmi out

[Jon Nettleton]

On Aug 18, 2013 10:30 AM, "Barry Vercoe" <barry at laptop.org.au> wrote:
>
> Jon, yes the file exists on our system here.  Contains just a zero.

Also when HDMI is plugged in? Could you send me a full dmesg output of the
HDMI handshake with auto power save enabled?

>
> -- barry
>
> On 18/08/2013 6:18 p.m., Jon Nettleton wrote:
>>
>>
>>
>>
>> On Sun, Aug 18, 2013 at 7:57 AM, Barry Vercoe <barry at laptop.org.au>
wrote:
>>>
>>> Of Course!!  I used to have that problem when I played long Csound
demos -- overworking the Flt Pt processor yet untouched by human hands
...   I don't know why I didn't relate the two situations.
>>>
>>> Turned off power saving, and the problem immediately went away.
>>> No, power saving doesn't turn off automatically when hdmi is plugged
in.  Perhaps it should ...
>>> Or at least we should have a warning distributed with the hdmi cable
that the port will turn off after 15 seconds with power saving on.
>>>
>>
>> Could you check something quick for me.  Does the status
file /sys/devices/d420b000.display/pxa168fb_gfx.1/hpd exist on your system?
>>
>> Thanks
>>
>>
>>>
>>> Thanks all.
>>> -- b
>>>
>>> On 18/08/2013 5:26 p.m., Tom Parker wrote:
>>>>
>>>> On 18/08/13 17:05, Barry Vercoe wrote:
>>>>>
>>>>> OK, with tail -f ... messages, I do see a burst of messages and the
>>>>> projector shows the exact screen.  But only for 15 seconds, when the
>>>>> projector then goes blank and reverts to _No Signal_ until I touch
>>>>> something on the XO like the screen, track pad or some key.
Apparently
>>>>> the XO has stopped sending hdmi signals, so the projector is
reporting
>>>>> exactly that.
>>>>
>>>>
>>>> When the display goes blank, does the power light start flashing to
indicate the laptop has gone to sleep?
>>>>
>>>> Try turning off power saving in the settings. When I was testing, the
power saving automatically turned off when I plugged in an external display
and turned on again when I unplugged it, but perhaps this isn't working on
your laptop?
>>>
>>>
>>>
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>>>
>>
>
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