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[SOLVED] No LCD monitor standby when idling - Printable Version

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No LCD monitor standby when idling - mrpi - 28th Feb, 2015 10:44 PM

Software
XBian version: 1.0RC3
XBMC version: 13.2 Git:20140901-867305b
Overclock settings: Xbian profile (840Mhz)

Hardware
Power supply rating: 5V 3A
RPi model (model A/B 256mb/512mb): B+ 512mb
SD card size and make/type: Kingston 8GB microSD
Network (wireless or LAN): LAN
Connected devices (TV, USB, network storage, etc.): RPi using 3 USBs connected to: 1 Seagate USB 2.0 Expansion 2TB, 1 Samsung SATA 320GB drive in USB 3.0 enclosure, 1 Logitech USB wireless combo (kb + mouse)

Config files:
/boot/config.txt:
Quote:#initramfs initramfs.gz 0x1000000
gpu_mem_512=144
gpu_mem_256=100
initial_turbo=3
disable_overscan=1
disable_splash=1
hdmi_force_hotplug=1
hdmi_drive=2
hdmi_group=2
hdmi_mode=58
#hdmi_ignore_cec_init=1
#hdmi_pixel_encoding=2
#config_hdmi_boost=4
arm_freq=840
core_freq=320
sdram_freq=400
over_voltage=0
max_usb_current=1

Problem description:
My RPi is connected to a Samsung LCD SyncMaster 2243N VGA monitor through an HDMI-VGA adaptor.
When the black screensaver starts, the monitor doesn't go to standby and stays on, illuminating the room by showing a black image.
Is there a way to make the monitor switch to standby when idle?

Thanks in advance for any help,
Alex


RE: No LCD monitor standby when idling - IriDium - 1st Mar, 2015 02:51 AM

Have you tried in xbian-config "Turn CEC capable TV OFF with screensaver"?

Never tried it but it might suit your needs.

Or try System -> Input -> CEC adapter "Put devices in standby mode"

If your screen is not CEC enabled, I think you are out of luck.


RE: No LCD monitor standby when idling - mrpi - 1st Mar, 2015 03:02 AM

Yes, but sadly, it doesn't work. Sad What could influence this? Could you point me in the right direction?


RE: No LCD monitor standby when idling - IriDium - 1st Mar, 2015 03:09 AM

Missed this point - you're going through a HDMI -> VGA adaptor. If I'm right, VGA has no CEC capabilities, so I'm afraid there is nothing that can be done in software.


RE: No LCD monitor standby when idling - mrpi - 1st Mar, 2015 03:26 AM

When I shutdown, the monitor normally switches to standby like at the first command.
Isn't there a way to simulate this lack of signal?


RE: No LCD monitor standby when idling - IriDium - 1st Mar, 2015 03:37 AM

That's the monitor detecting no signal from the hardware. As far as I know there is no way of doing that in XBian. Sorry

BTW: In future, if you add your RPi configuration into your user profile you can just point a post to it, instead of entering it each time you post a new thread.


RE: No LCD monitor standby when idling - mrpi - 1st Mar, 2015 03:42 AM

I found that I can turn it off with:
Quote:/opt/vc/bin/tvservice -o
But if I try:
Quote:/opt/vc/bin/tvservice -p
It will turn on without image. Sad


RE: No LCD monitor standby when idling - menakite - 1st Mar, 2015 11:12 AM

Try:
Code:
vcgencmd display_power 0
vcgencmd display_power 1



RE: No LCD monitor standby when idling - mrpi - 1st Mar, 2015 04:37 PM

Thank you menakite!
It's working perfectly!
Now I can finally automate this Smile