User avatar
solar3000
Posts: 1051
Joined: Sat May 18, 2013 12:14 am

does pi 2 switch off monitor?

Mon Feb 23, 2015 8:55 am

I know pi 1 A/B will not switch off monitor, but instead send a dark screen.
Will the pi 2 switch off the monitor like typical PCs?

Just got my pi 2 today.
Antikythera

blc
Posts: 465
Joined: Mon Sep 05, 2011 9:28 am

Re: does pi 2 switch off monitor?

Mon Feb 23, 2015 11:10 am

A typical PC doesn't turn off the monitor when it powers down, it just stops sending video signals to the monitor. The same thing happens with the Pi (unless you're dealing with a CEC-compliant display, and it's extremely unlikely that your average monitor is CEC-compliant). Monitors can detect when there is no video signal and will go into a low-power standby state.

klricks
Posts: 7172
Joined: Sat Jan 12, 2013 3:01 am
Location: Grants Pass, OR, USA
Contact: Website

Re: does pi 2 switch off monitor?

Mon Feb 23, 2015 1:19 pm

If your are referring to the screen blanking (screensaver) then there is no change, the screen goes black after 10 min but the back-light remains on.
Unless specified otherwise my response is based on the latest and fully updated RPiOS Buster w/ Desktop OS.

Joe Schmoe
Posts: 4277
Joined: Sun Jan 15, 2012 1:11 pm

Re: does pi 2 switch off monitor?

Mon Feb 23, 2015 1:31 pm

blc wrote:A typical PC doesn't turn off the monitor when it powers down, it just stops sending video signals to the monitor. The same thing happens with the Pi (unless you're dealing with a CEC-compliant display, and it's extremely unlikely that your average monitor is CEC-compliant). Monitors can detect when there is no video signal and will go into a low-power standby state.
Obviously, this depends entirely on what you consider "typical".

Current PCs, hooked up to a TV via HDMI and running "current" versions of Windows, do, indeed, do as the OP says.

Whether or not this is "typical" by your standards is a personal matter.
And some folks need to stop being fanboys and see the forest behind the trees.

(One of the best lines I've seen on this board lately)

blc
Posts: 465
Joined: Mon Sep 05, 2011 9:28 am

Re: does pi 2 switch off monitor?

Mon Feb 23, 2015 1:46 pm

Joe Schmoe wrote:
blc wrote:A typical PC doesn't turn off the monitor when it powers down, it just stops sending video signals to the monitor. The same thing happens with the Pi (unless you're dealing with a CEC-compliant display, and it's extremely unlikely that your average monitor is CEC-compliant). Monitors can detect when there is no video signal and will go into a low-power standby state.
Obviously, this depends entirely on what you consider "typical".

Current PCs, hooked up to a TV via HDMI and running "current" versions of Windows, do, indeed, do as the OP says.

Whether or not this is "typical" by your standards is a personal matter.
I misunderstood the OPs question: I thought they were asking about the monitor being switched off by the Pi when the Pi is switched off - not the monitor going into standby while the Pi is still running.

If we're talking about what I thought we were talking about then I've never seen a monitor get switched off when the PC is switched off.

Return to “General discussion”