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License: MIT License
Power On and Off WebOS LG TVs together with your PC
License: MIT License
LG C1
Worked perfectly in Windows 10.
Just did a clean install of Windows 11 and now it appears after the machine sleeps - I have to use the remote to power the TV back on.
I don't know if it's a setting in Windows or what I'm missing. Any suggestions?
(LGTVCompanion 1.4.2 Windows 11 21H2 22000.376, NVidia 496.76)
I have a hard-to-reproduce issue where sometimes (not always), for no apparent reason, LGTVCompanion does not turn off the TV when Windows decides to turn off the display. I'm referring purely to the Windows display timeout here, not PC standby/shutdown.
I hacked together a build with additional verbose logging code around PBT_POWERSETTINGCHANGE
events, and then waited until the issue occurred again. I noticed that when things behave correctly, Windows delivers a GUID_CONSOLE_DISPLAY_STATE
event to LGTVCompanion with data 0x2 (dimmed), followed 15 seconds later by another GUID_CONSOLE_DISPLAY_STATE
event with data 0x0 (off). So far so good.
When the issue occurs, LGTVCompanion does receive the first event (0x2 dimmed), but the second one (0x0 off) is nowhere to be found. I have no idea why.
LGTVCompanion currently treats 0x2 (dimmed) the same as 0x1 (on) and therefore does not turn off the display in this case.
(I checked if GUID_MONITOR_POWER_ON
had a similar problem. Sadly, the answer is yes.)
This probably deserves some more investigation, but if this doesn't go anywhere, a potential workaround is to treat 0x2 (dimmed) as "off". I don't think this would have any visible side effects, given that there is no actual dimming going on (at least not on my system). It would make the TV turn off 15 seconds too soon but that's arguably benign, and in fact it's a bit cleaner because this way the TV doesn't have time to briefly display its "No Signal" message.
I have the LG 55" Nano90 and have installed the Lgtvcompanion as per the instructions. However, the function to turn on the TV is not working. I can turn it off without issues, but went bringing the PC back from sleep or turning it on does not turn on the TV.
I tried the following troubleshooting steps:
The mobile app "thinq" from LG can turn on the TV without issues, which indicates an issue with the Lgtvcompanion app itself.
Log info FYI:
Thu 14:33:04 > IPC command received: -poweron Device1
Thu 14:33:04 > Device1, spawning DisplayPowerOnThread().
Thu 14:33:04 > Device1, repeating WOL broadcast started to MAC: <ADDRESS>
Thu 14:33:25 > Device1, WARNING! DisplayPowerOnThread(): connect: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
Thu 14:33:46 > Device1, WARNING! DisplayPowerOnThread(): connect: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
Thu 14:33:46 > Device1, repeating WOL broadcast ended
On my system something is preventing the app from see that I'm idle (not using mouse or keyboard) but I have other usb game controllers attached that probably stops app from detecting idle...
Can You add a settings that will allow limiting listening to a keyboard presses only?
The workaround implemented in the latest patch worked well for a while, my LG CX actually woke up after a longer time when I booted my pc, but now it has stopped working? I made sure that the WOL magic packet is being sent to the Device IP-address and even tried to reinstall the program, but to no avail.
Hi @JPersson77,
Somehow, the companion app GUI is missing the "minimize" button.
It would be useful to add such button and also an option to minimize to tray on close.
I can turn off the tv fine manually and automatically, and , surprisingly, the tv turns on(from off-state) when I issue a manual turn off command.
I have tried all three options in the configure menu.
The logs show that the program is able to communicate with the display:
*My setup : I have shifted DHCP giving capability from my home router to a raspberry-pi running PiHole *
The mac-addresses match in the program, PiHole, and on the tv
*The LG C1 is on latest firmware update - 03.20.80 *
I removed the mac address and client key
Wed 12:25:18 > LGTV Companion Service started (v 1.4.2) ---------------------------
Wed 12:25:18 > Configuration file successfully read
Wed 12:25:18 > Data path: C:\ProgramData\LGTV Companion
Wed 12:25:18 > Device1, [LG] webOS TV OLED48C1PUB, with IP 192.168.1.51 initiated (Enabled:yes, WOL:1, Pairing key:, MAC: )
Wed 12:25:18 > Host IPs detected: 172.23.112.1, 172.31.80.1, 172.27.128.1, 192.168.1.74
Wed 12:25:18 > Setting shutdown parameter level 0x1E1
Wed 12:25:18 > ** System requests displays ON.
Wed 12:25:18 > Device1, spawning DisplayPowerOnThread().
Wed 12:25:18 > Device1, repeating WOL broadcast started to MAC: using network broadcast: 255.255.255.255
Wed 12:25:18 > Device1, repeating WOL broadcast started to MAC: using network broadcast: 255.255.255.255
Wed 12:25:18 > Device1, response received: {"type":"registered","id":"register_0","payload":{"client-key":""}}
Wed 12:25:18 > Device1, established contact: Display is powered ON.
Wed 12:25:20 > IPC command received: -poweroff Device1
Wed 12:25:20 > Device1, spawning DisplayPowerOffThread().
Wed 12:25:20 > Device1, established contact: Display is powered OFF.
Wed 12:25:20 > Device1, repeating WOL broadcast ended
Wed 12:25:24 > IPC command received: -poweron Device1
Wed 12:25:24 > Device1, spawning DisplayPowerOnThread().
Wed 12:25:24 > Device1, repeating WOL broadcast started to MAC: using network broadcast: 255.255.255.255
Wed 12:25:24 > Device1, repeating WOL broadcast started to MAC: using network broadcast: 255.255.255.255
Wed 12:25:24 > Device1, response received: {"type":"registered","id":"register_0","payload":{"client-key":""}}
Wed 12:25:24 > Device1, established contact: Display is powered ON.
Wed 12:25:26 > IPC command received: -poweron Device1
Wed 12:25:26 > Device1, spawning DisplayPowerOnThread().
Wed 12:25:26 > Device1, repeating WOL broadcast started to MAC: using network broadcast: 255.255.255.255
Wed 12:25:26 > Device1, repeating WOL broadcast started to MAC: using network broadcast: 255.255.255.255
Wed 12:25:26 > Device1, response received: {"type":"registered","id":"register_0","payload":{"client-key":""}}
Wed 12:25:26 > Device1, established contact: Display is powered ON.
Wed 12:25:26 > Device1, repeating WOL broadcast ended
Wed 12:25:27 > IPC command received: -poweron Device1
Wed 12:25:27 > Device1, spawning DisplayPowerOnThread().
Wed 12:25:27 > Device1, repeating WOL broadcast started to MAC: using network broadcast: 255.255.255.255
Wed 12:25:27 > Device1, repeating WOL broadcast started to MAC: using network broadcast: 255.255.255.255
Wed 12:25:27 > Device1, response received: {"type":"registered","id":"register_0","payload":{"client-key":""}}
Wed 12:25:27 > Device1, established contact: Display is powered ON.
Wed 12:25:28 > Device1, repeating WOL broadcast ended
Wed 12:25:28 > IPC command received: -poweron Device1
Wed 12:25:28 > Device1, spawning DisplayPowerOnThread().
Wed 12:25:28 > Device1, repeating WOL broadcast started to MAC: using network broadcast: 255.255.255.255
Wed 12:25:28 > Device1, repeating WOL broadcast started to MAC: using network broadcast: 255.255.255.255
Wed 12:25:28 > Device1, response received: {"type":"registered","id":"register_0","payload":{"client-key":""}}
Wed 12:25:28 > Device1, established contact: Display is powered ON.
Wed 12:25:29 > Device1, repeating WOL broadcast ended
Wed 12:25:29 > IPC command received: -poweroff Device1
Wed 12:25:29 > Device1, spawning DisplayPowerOffThread().
Wed 12:25:30 > Device1, established contact: Display is powered OFF.
Wed 12:25:30 > Device1, repeating WOL broadcast ended
Hey there. I typically enjoy using the setting where it blanks the monitor after a couple minutes with no input.
However, it causes a conflict with any remote PC software for gaming such as Steam Link or Moonlight. Problems pretty obvious, I connect to PC, it triggers the LG companion to turn on my tv. Even if I'm hundreds of miles away playing over my phone. Only fix I've found is to go into the settings every morning before I go to work. Disable the feature that blanks the tv. Then remember to turn it back on when I get home.
Apologies for posting this as an issue rather than on the forum mentioned in the documentation; I don't speak Swedish at all, so didn't feel it was appropriate to join that community.
Would is be possible to add a feature to detect valid inputs on other HDMI port(s), and if lacking them, switch the input back to a specified HDMI port. (The example user story here would be switching back to a PC input after a game console is turned off.)
Screen blank
Unfortunately, this nice little feature blanks the screen while I'm watching a vidoe.
Could be solved by detecting full screen:
QUERY_USER_NOTIFICATION_STATE pquns;
SHQueryUserNotificationState(&pquns);
QUNS_RUNNING_D3D_FULL_SCREEN – fullscreen (Direct3D application is running in exclusive mode, i.e. fullscreen)
Error: Failed to initialize Toast Notifications: 3
This error is generated consistently on startup.
Following use case:
When I'm in my "Desktop" profile and wake the PC from screensaver/screen off, LGTV Companion seems to send a wakeup signal to the TV.
This then leads to my monitors freaking out for a while, trying to manage display modes. I assume this has to do with HiDPI settings and HDR. It takes like 20 seconds for my monitors to stop turning on/off.
Then, the TV is on, but not showing anything (as the Windows display is disabled). I didn't want it to be on, since I turned it off in Windows display settings!
In this image, the TV is input 3, and this depicts my "Desktop" profile.
Questions:
Essentially, I'd like to use the LGTV Companion features when I'm in the "TV" profile, but not when I'm in the "Desktop" profile.
Does this support Sony TVs as well, like the A90K?
Hi, it's possible launch app on power on TV?
Maybe using:
ares-cli is a command-line interface (CLI) for webOS. It provides a collection of commands used for creating, packaging, installing, and launching apps or services in the command line environment. ares-cli lets you develop and test apps or services without using any IDE.
https://www.webosose.org/docs/tools/sdk/cli/cli-user-guide/#ares-launch
Hey :) not an issue, but more of a heads up.
In the latest LTT video they briefly talk about this app: https://youtu.be/4mgePWWCAmA?t=20m48s
If you like you could add this as a reference in the readme, e.g. the following quotes could be fun:
That is a really janky solution. But... it works! LTT at https://youtu.be/4mgePWWCAmA?t=21m14s
That was really fast! LTT at https://youtu.be/4mgePWWCAmA?t=21m29s
How cool is Jpersson77! LTT at https://youtu.be/4mgePWWCAmA?t=21m58s
Hello,
The companion app was working fine on my LG OLED55CX5LB until recent firmware upgrades. I am now on 03.23.06. Here is the relevant log extract:
Wed 15:22:42 > ** System resumed from low power state.
Wed 15:22:46 > Device1, WARNING! DisplayPowerOnThread(): connect: A socket operation was attempted to an unreachable host
Wed 15:22:52 > Device1, WARNING! DisplayPowerOnThread(): connect: A socket operation was attempted to an unreachable host
Wed 15:23:13 > Device1, response received: {"type":"registered","id":"register_0","payload":{"client-key":"e1bf163e389129cf459b96b761e4cd48"}}
Wed 15:23:13 > Device1, established contact: Display is powered ON.
Wed 15:23:14 > Device1, repeating WOL broadcast ended
Please note that I powered on the monitor manually.
Running LGTV Companion 1.2.0 under Windows 10 21H1.
TV is connected via wired LAN.
Can you help, please?
In your guide you mentioned its possible to wake the TV even if its on a different subnet. Mind sharing how??
Hello,
I wanted to know if it is possible to just synchronize the turning off of the TV
I also wanted to know if I can only use the shortcuts, if I uncheck "restart" in the settings the shortcuts don't work
Thank you very much
hey just updated to the latest version. v1.6.2
using a network 255.255.255.255 broadcast and it looks like that DisplayPowerOnThread() is not able to hit the TV even though the PowerOffThread works perfectly fine.
I've added some logging data.. where i turned of the screen off. and it worked fine, but turning on i tried 3 times and it fails.
Example: PS5 on HDMI 1, PC on HDMI 2
Scenario 1: LG companion using the option to turn to PC (HDMI 2) when TV is off at HDMI 1 (PS5) last time - Result when turn on PC: PS5 (HDMI 1) shows up for a second or two and force PS5 to turn on (If using CEC option in PS5)
Scenario 2: Using Hotel mode to force HDMI 2 as default input source - Result when turn on PC: Ps5 (HDMI 1) input source doesn't show up which will then not trigger turning on the PS5
Is there a way to configure this new feature in LG companion to be exactly like in Hotel mode since Hotel mode disable Wake on Lan and some other TV features like Airplay, Lite pixel refresher
Thanks!
I've noticed that, when using LGTVCompanion (any version, including latest master
) with my LG G1 over WiFi, the TV would sometimes (not always!) fail to react when asked to turn on (automatically or manually from the LGTVCompanion UI).
This happens once every 2-3 days or so. I am not able to reproduce it on demand. It seems to only happen after the TV has been off for a long time (e.g. a few hours or more). I don't think this is related to "pixel cleaning" since it often happens after the TV has been off for 12+ hours, long after any pixel cleaning routine should have completed.
Every time this happens I try to gather more information by examining network traffic and doing a few Wake-On-LAN experiments. I'm still not 100% convinced I have the full picture but here's what I got so far:
Usually the TV wakes up in response to a broadcast-directed (i.e. destination MAC FF:FF:FF:FF:FF:FF
) WoL packet, but when the problem occurs it does not. However it does wake up if I send it a unicast WoL packet. This can be confirmed independently using tools other than LGTVCompanion. For example I managed to demonstrate this using etherwake
from a nearby Linux machine - if the broadcast flag (-b
) is used the TV will not wake up, but if the flag is omitted it will. To be honest I find it a bit baffling that broadcasts sometimes work and sometimes don't. It's also not clear to me if the TV is truly ignoring WoL packets or if it's my WiFi AP (Ubiquiti Unifi UAP-AC-Pro firmware 6.0.14) that's not transmitting them. I wouldn't be surprised if there was some kind of 802.11 power saving feature that stops broadcasts from being delivered under certain conditions, but honestly I have no idea.
Unicast WoL packets do work, from what I can tell… but the Unicast mode of LGTVCompanion seems to have a different problem that results in similar symptoms, further confusing the issue. I noticed that etherwake
in unicast mode always seems to work every single time, but LGTVCompanion in Unicast mode doesn't always work. I strongly suspect this is because the Unicast mode of LGTVCompanion is attempting to send the Unicast packet the "normal way", using the standard UDP/IP mechanism (i.e. socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)
, sendto()
). The problem is, that mechanism assumes that the target device is in the ARP cache (unlikely if the TV has been off for some time), or that it will respond to ARP requests. There again it looks like sometimes the TV will respond to ARP requests while off, and sometimes it won't, similar to how it sometimes ignores broadcast WoL packets. (In fact it might be the exact same root cause, since ARP requests are broadcast packets!) If ARP doesn't work, then attempting to send a UDP packet to the TV the normal way will simply not work. This can be verified using a sniffer like Wireshark, which won't show any WoL packets going out, showing unanswered ARP requests instead. This is precisely what one would expect. etherwake
is immune to this problem because it uses raw sockets and puts the WoL payload directly inside an Ethernet frame - it doesn't use IP at all, and is therefore not reliant on ARP.
Assuming that my hypothesis is correct and that the issue truly lies with broadcast packets (either ARP packets or the WoL packets themselves) not being delivered to the TV over WiFi, then it looks like there are two possible fixes:
netsh
to do this but was unsuccessful. However I just discovered the existence of New-NetNeighbor
and it looks like I was able to add a proper ARP override using that command. Now that I have the ARP static entry I've switched LGTVCompanion to Unicast mode and will report back after a few days…etherwake
does, perhaps as a fourth "mode" of operation. This seems like a better long-term solution since it doesn't require the user to do anything, beyond selecting this new mode in the LGTVCompanion options.The power off side works perfectly but I am not able to get it to power back on. I tried the HDD power save settings and the quick power on is enabled. The TV and the PC are on the same network. The only think I can think of is if the magic packet is being set out the correct network adapter. I have VM Ware Workstation installed and that creates multiple VMWare Network adapters. I am wondering if the magic packet is being sent out from one of these interfaces rather than the correct interface.
The command line arguments are excellent. I wrote a dumb system tray icon UI to execute the commands, so instead of seven awkward remote control button presses, I can turn the screen on with my mouse.
I still have to pick the command to run from a menu depending on what the current state is though, so I'm hopeful that you might be able to add a screentoggle
to the commands so that regardless of whether the screen is on or off, one call to this command would invert it. Same for the TV's power state.
Just like Xbox Seri X and PS5, turning off TV will automatically put them into rest/standby mode. Is this possible to set such feature for PC?
Thanks!
Hey, do you know any other alternatives to make the experience on Samsung TVs less crappy? I've got a UE65NU7105KXXC by the way
NVM, found the release
Hey there. I typically enjoy using the setting where it blanks the monitor after a couple minutes with no input.
However, it causes a conflict with any remote PC software for gaming such as Steam Link or Moonlight. Problems pretty obvious, I connect to PC, it triggers the LG companion to turn on my tv. Even if I'm hundreds of miles away playing over my phone. Only fix I've found is to go into the settings every morning before I go to work. Disable the feature that blanks the tv. Then remember to turn it back on when I get home. Not sure if Windows Remote Desktop causes the issue I currently have it disabled but I can test it when I get home if you like.
I have my Turn Off Display set for 3 mins, and then after 3 mins the screen goes to sleep, but the problem is that the LG Screensaver kicks in, what I want is that when the screen goes to sleep, it just shut down and when the mouse is moved that time the screen turns back on.
I can use screensaver mode? Yes, but i am using the screensaver mode at 1min interval after which i want the screen to go into sleep (after 15min) and tv to turn off.
I'm trying to compile it with Visual Studio 2022 after downloading Wix toolset and Wix extension. The build fails due to missing boost/beast.hpp called by Service.h and missing LGTVsvc.exe. Any idea what I'm doing wrong here?
Hello,
I have had LGTVCompanion working on my PC for several weeks, but within the past week, I noticed my TV is no longer automatically turning on/off as it had been. This is a little odd to me because I don't think I changed anything.
While attempting to diagnose the issue, I discovered that if I manually restart the LGTVCompanion service, the TV will turn on every time. Similarly, if I open the LGTVCompanion application and manually click the "Turn On" button, the TV will also turn on every time. For some reason, it just won't automatically turn off/on like it had been doing for several weeks.
I am running Windows 10 19044.1806 and using an LGOLED48C1PUB.
Has this behavior been seen before by others?
Seems to work in other situations but not this one:
Mon 22:07:23 > ** System is suspending to a low power state.
Mon 22:13:47 > ** System resumed from low power state (Automatic).
Mon 22:13:47 > ** System resumed from low power state.
Mon 22:13:48 > ** System requests displays ON.
Mon 22:13:48 > Device1, spawning DisplayPowerOnThread().
Mon 22:13:48 > Device1, repeating WOL broadcast started to MAC: 24:E8:53:76:BE:C0 using network broadcast: 255.255.255.255
Mon 22:13:48 > Device1, WARNING! DisplayPowerOnThread(): connect: A socket operation was attempted to an unreachable host
Mon 22:14:15 > Device1, WARNING! DisplayPowerOnThread(): connect: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
Mon 22:14:30 > Device1, repeating WOL broadcast ended
Hi,
since 1.5.0 update I've noticed sleep doesn't trigger on the windows 11 lock screen. Rolling back 1.4.2 fixes it.
I am currently using the latest version 1.6.1 on Windows 11 and even though I tried multiple "restart words" in the additional options page, the TV would intermittently turn off when a reboot is initiated. This used to happen also in earlier versions.
I haven't been able to get the idle feature to trigger with 1.5.0 under Windows 11.
I was testing using a 1 min timer at just the Windows desktop.
Hey, this piece of software is absolutely amazing - I used to mess around with some early scripts back in the day that would hit the TV's APIs unreliably, but this makes it all 100x better.
My use case is the following, I use the TV as a monitor that's hooked up into an HDMI (KVM) switch. I have my Windows desktop as one source, and my Mac laptop as another source. I have LGTV Companion installed on Windows, but as soon as I switch to the Mac it turns off the TV which is not desired in my use case, but functions as intended.
I was wondering if you can think of any alternative of how we could make this work whenever one of the computers is controlling the TV (to disable functionality from the other client).
Cheers and thanks again for this awesome software!
While playing local video files, the Automatic Blank feature still turns off the TV. I wish that this can be fixed.
Semi-related question, isn't it possible to hook into windows screensaver feature and if screensaver gets turned on then the LG Companion app would turn off (automatic blank) the TV? I'm asking because windows screensaver was what used before using the LGTV Companion and in that one regard its better and I'd honestly keep using it if the TV didn't turn off completely hours later and i'd have to use the remote.
Hi,
I have configured the app to successfully turn on and off, however when I try to shut down my PC nothing happens. The app turns off the TV only when the display is timed out or when the PC goes on standby. I also try fiddeling with the "restart, shutdown, power off" option in the app but the issue remains.
Kindly note that I have fast-startup disable due to bootup issues
Log details:
Fri 12:04:07 > Event subscription callback: system shut down detected.
Fri 12:04:13 > ** System is shutting down.
Fri 12:04:13 > Device1, spawning DisplayPowerOffThread().
Fri 12:05:00 > LGTV Companion Service started (v 1.2.0) ---------------------------
Fri 12:05:00 > Configuration file successfully read
The line "Device1, established contact: Display is powered OFF. " is present only when going on standby or display is timed out, but missing from the shutdown event
I was wondering if Is it possible to have PC automatically put in sleep mode when TV is turn off (use power button on the remote control) just like the Ps5?
Hi,
I try my best, but porgram not start when I turn on PC.
turn off seems work well, but only that.
I don't know whether LG TVs expose volume in the protocol this app is using, but it would be nice to have a command line argument to change volume level or mute the sound. I assume that it would also allow to control volume level of sound devices connected through eARC. I don't really see a point to putting it in GUI though.
Example from PS5:
Is this possible to do this for PC by let's say making a shortcut or exe for whenever triggering it, it will do the exact same behavior like on the Ps5 controller (Can just set such shortcut/exe to a button on the pc controller)
Thanks for your hard work!
Great program! But is it possible to only have it process events if the PC that it is running on actually has an active HDMI connection? Not sure if that's possible to detect. Specifically, my use case is that I use a KVM switch and PC1 runs the LGTVCompanion and will send the shut off command after a few minutes of inactivity. But if I switch to PC2 and am currently using it, the TV is then shut off since PC1 send the shut off command. If the LGTVCompanion could detect that PC1 doesn't currently have an active HDMI connection, there's no need for it to process any events or send commands.
Hello,
I get the following errors on my logs when my TV is trying to power back on:
WARNING! DisplayPowerOnThread: connect: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
The TV is in the same network just on a different VLAN than the PC. The PC VLAN is able to communicate to the VLAN that my TV is on. It isn't able to find it by scanning it but it is able to communicate with it when I added the networking information manually. The application is able to turn off the TV correctly but it does not turn it on.
I tested this with Quick Start tv setting OFF and ON. I have it OFF because the TV pixel shift still activates regardless if the settings is off in the menu.
Hi, I've been using this software for the past year or so with my PC and it has been amazing. I sometimes have my MacBook connected and would really appreciate an apple compatible version of this software. I realize Apple's restrictions are a possible challenge to overcome, but is it possible to make an apple version of this software?
I've been trying this out for a few weeks now, and I just have to say it works exactly as advertised. I really appreciate you and your excellent work.
I've been using my TV for PC monitor and PS5 (and sometimes netflix) as well
When I switch input source to PS5, the TV still turn off if I leave the PC idle long enough to off the screen
Is there any workaround so when I am playing PS5 the TV won't turn off automatically? Thanks
Hello
Brand new owner of a an LG C2 here.
Thanks for your software !
My OS is in french and the words are detected but they are not working.
And when i enable it, my restart or shutdown, take very long, not like usual.
I have look at the log and i see each time i do a shutdown, the soft thinks it's a restart and same for restart but not working.
I see the latest version has a new feature to send the TV a turnOffScreen
command if the user has been idle for some period of time.
I don't understand the point of the feature. Can't the exact same result be achieved simply by using a blank Windows screensaver?
The release notes mention "enhanced burn-in protection and power savings".
For burn-in, my understanding is that displaying a black screen (as the Windows screensaver does) is enough to prevent burn-in (is there evidence to the contrary?).
For "power savings", I just checked with a power meter: my G1 uses the exact same amount of power (56 W) when using turnOffScreen
, compared with Windows sending a black screensaver to the TV. The only way to make the TV use less power is to turn it off completely (3.5 W).
So in light of the above, I'm genuinely curious what use case one could possibly have for this new feature? From where I'm standing, all it does compared to the screensaver is add latency to the screen wakeup.
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