I have a bizarre situation here... I use OBS to switch inputs across various sources when teaching classes, so I'm not recording and not streaming - rather I send a Fullscreen Preview out to a projector. However on my new laptop (Intel 155H, Arc iGPU + RTX4050) the CPU seems to throttle to ~1GHz as soon as either the preview or multi-view windows are opened, making the whole machine sluggish. CPU usage remains low, temps remain moderate (~50C). As soon as I close those windows (leaving just the main OBS window open) the CPU clock returns to a normal 2-3GHz range, depending on load. I don't see anything untoward in the logs (attached). I've tried forcing OBS to use of each the Arc and the RTX via Windows' graphics config but I get the same result either way. Can anyone help debug what's causing this? Thanks!!
CPU throttles when 'Preview' or 'Multiview' is active (!?!)
- Thread starter andy169
- Start date
init_bobjames
New Member
i might have a similar problem but havent narrowed it down to a preview, i will try that
it seems something in the last few weeks has changed and now my cpu gets throttled when i use OBS
it seems something in the last few weeks has changed and now my cpu gets throttled when i use OBS
init_bobjames
New Member
just now got around to this, you know i don't think its OBS, i think it's my camera software that OBS has a source
init_bobjames
New Member
testing, i'm using VCam to remove the background, on closing VCam the processor ramps back up - interestingly only when OBS is open
preview on/off has no effect
close obs = cpu ramp back up
close vcam with obs still open = cpu ramp back up
close obs with vcam still open = cpu ramp back up
this is kinda new, gonna update both and come back
preview on/off has no effect
close obs = cpu ramp back up
close vcam with obs still open = cpu ramp back up
close obs with vcam still open = cpu ramp back up
this is kinda new, gonna update both and come back
init_bobjames
New Member
dont really wanna speak too soon, but looks good after updates rn
testing with desktop scenes, will test with game too
testing with desktop scenes, will test with game too
init_bobjames
New Member
i have no clue whats going on, but whatever happened, software, bios update, driver idk but seems i can't play and stream anymore without cpu getting throttled bad
init_bobjames
New Member
[Solved for Bob]
i found the issue! at some point i must have changed to advanced output settings on this profile
Settings > Output > Output mode > Advanced -> Video Encoder
and instead of having Hardware Encoder selected, had Software x264
This was the issue that ruined my laptop's ability, now i can do the things again, lets goooo
i found the issue! at some point i must have changed to advanced output settings on this profile
Settings > Output > Output mode > Advanced -> Video Encoder
and instead of having Hardware Encoder selected, had Software x264
This was the issue that ruined my laptop's ability, now i can do the things again, lets goooo