Lighthouse viewport is still in mobile view after running test using desktop configuration

[eysuu]

I am having trouble running sitespeed 17.1.1-plus1 using lighthouse plugin. My configuration settings seems working fine but based on lighthouse report, the screenshot is in mobile view. Here's my command running tests:

docker run --name sitespeed --volumes-from=jenkins --network=host --privileged=true --shm-size=1g --rm -v \"/tmp/sitespeed.io/\":/sitespeed.io \sitespeedio/sitespeed.io:17.1.1-plus1 --plugins.remove browsertime \--lighthouse.settings.screenEmulation.mobile false --lighthouse.settings.formFactor desktop --lighthouse.settings.throttling.rttMs 40 --lighthouse.settings.throttling.throughputKbps 10240 --lighthouse.settings.throttling.cpuSlowdownMultiplier 1 \--graphite.host localhost --graphite.port 2003 --graphite.httpPort 8080 --graphite.namespace TestFolderD.default

See screenshot attached:
Viewport is in mobile

But the summary setting is in desktop

I also tried using the --lighthouse.setting.preset desktop but its not working as well.

Please help me guys, it gives discrepancy on lighthouse opportunities and diagnostics as well. Thanks a lot.

[soulgalore]

Hi @eysuu hmm I get the same. I can check the Lighthouse documentation to see if I understand how to do it.

[eysuu]

@soulgalore I really appreciate the response sir. Thank you. I've been resolving this for 2 days and I really don't know what's wrong that's why I ended up questioning here 😅

[soulgalore]

@eysuu I tried too but couldn't get it to work, I think something is missing in the Lighthouse documentation.

[eysuu]

It looks like I'm literally running out of options. I already get rid of mobile screenshot but the screen size does not seems to be correct compared on manual audit. Even if I ran this --lighthouse.setting.screenEmulation.disabled --lighthouse.setting.formFactor desktop it will just show the viewport of desktop, but the findings for LCP and CLS are get via mobile viewport.

Thanks @soulgalore

[arquilca]

@eysuu I don't think setting --lighthouse.setting.screenEmulation.disabled is enough. You can see this document that mentions two different ways screenEmulation would be configured with objects. Maybe some of the other parameters like width/height/deviceScaleRatio are still using defaults.
https://github.com/GoogleChrome/lighthouse/blob/master/docs/emulation.md

You can see the default values used in Chrome Lighthouse here:
https://github.com/GoogleChrome/lighthouse/blob/master/lighthouse-core/config/constants.js

Also, I've noticed the last few comments you stated lighthouse.setting instead of lighthouse.settings (with an s). So that's also worth double-checking.