in Hybrid-auto mode, dGPU does not turn on after plug-in power.

[bocauman]

Version

2.25.1

OS

windows 11 23h2

Device

Legion 5 Pro 16IAH7H

BIOS version

J2CN57WW

What is wrong?

this is similar to problem in #1557

thanks.

What did you try already?

switch off vantage and hotkey drivers.
using vantage works as expected.
also switching gpu mode to hybrid, reactivate dGPU again as expected.

How to reproduce the bug?

set gpu mode to hybrid-auto
unplug power
wait until dgpu disappear in dashboard.
then re-plug in the power.
dgpu does not wake up.

What is the behavior that you expected?

dgpu should wake up, after power is plug-in like in vantage.

Logs

none.

Additional information

No response

[RootZoneRZ]

At now, I meet this issue too. For dGPU awake from off-state, at this time I use Vantage services enabled. It's a pity that in this case the keyboard backlight cannot be controlled by LLT. Previously, automatic wakeup of dGPU was worked, I don’t know at what point exactly it stopped.

[Howtyee]

I meet this issue too

[RootZoneRZ]

As a temporary ugly solution I use this:

1. I added "--enable-hybrid-mode-automation" to "%USERPROFILE%\AppData\Local\LenovoLegionToolkit\args.txt"
2. I added to automatic actions - on power-supply connect: Graphics mode - "Hybrid".
3. I added to automatic actions - on power-supply disconnect: Graphics mode - "Hybrid-Auto".

It works for me. Of course it's inconvenient, but now I was able to disable Lenovo Vantage again.

[RootZoneRZ]

I think it would be great if LLT had its own switching mode, which would implement, for example, my previous idea of ​​forced switching between Hybrid and Hybrid-auto, depending on the power source (the ability to turn it on, even just as a separate flag/toggle)

[duc0983]

lenovo tool can't limit tempeture gpu

[BartoszCichecki]

@duc0983 first warning.

[BartoszCichecki]

I need to look into this, I am not sure why dGPU doesn't wake up. The whole wake up process is initiated by EC when power is connected, after which Windows should pick up new plug and play device. Not sure what's up...

[BartoszCichecki]

I think it would be great if LLT had its own switching mode, which would implement, for example, my previous idea of ​​forced switching between Hybrid and Hybrid-auto, depending on the power source (the ability to turn it on, even just as a separate flag/toggle)

As you said yourself - you can do exactly that with Actions if you need to. Whole process is fragile, because of the way Lenovo designed it. I don't know if they couldn't do it better or just didn't.

Regardless, hybrid modes should be left alone, that's why they aren't available in Actions by default. Switching them too fast or when dGPU is in use and can't disconnect results often in dGPU not waking up at all until machine is restarted.

[RootZoneRZ]

Hello, friends!
I was try to do two things:

1. I was manually install NVidia VGA driver version 561.09
2. I added "--experimental-gpu-working-mode" and "--enable-hybrid-mode-automation" to "%USERPROFILE%\AppData\Local\LenovoLegionToolkit\args.txt"

Graphics mode - "Hybrid-Auto" seems to work great now! I tested it on two Legion 5 Pro 16IRX9 (2024).

[hitcup8386]

and i have the opposite case. when i start up the laptop on battery the dGPU keep restarting and refuse to turn off but it didnt happend when the laptop is already turned on and i unplug the laptop. i dont know if it a bug or some thing that could be fix. thank you in advance for your answer

[Sebastian-Hothaza]

I'm also experiencing some issues similar to this. When I have it set to auto and unplug, the system SHOULD switch to iGPU only however it doesnt and the dGPU doesnt get disconnected. I added the arg to allow hybrid mode automation as a user suggested above and have it set to use "hybrid" when plugged in and "iGPU only" when unplugged. This should be the behaviour of auto, but it appears broken in LLT or Lenovos management of it. Perhaps a time delay is needed

[BartoszCichecki]

I'm also experiencing some issues similar to this. When I have it set to auto and unplug, the system SHOULD switch to iGPU only however it doesnt and the dGPU doesnt get disconnected. I added the arg to allow hybrid mode automation as a user suggested above and have it set to use "hybrid" when plugged in and "iGPU only" when unplugged. This should be the behaviour of auto, but it appears broken in LLT or Lenovos management of it. Perhaps a time delay is needed

Hybrid Auto won't turn off dGPU if at the time of unplugging dGPU is in use. This has always been flaky and that is an issue with how Lenovo decided/had to implement hybrid modes.

[BartoszCichecki]

I don't have anything specific when it comes to this issue yet.

What I observed is that on my L7, dGPU actually is reconnected to the system, but device manager shows error code 43. Not sure yet what is causing this. For me it started around the time I updated to 24H2, but this issue reports this on 23H2 so not sure what's up with this exactly.