[SOLVED] second monitor stopped working after installing m.2 ssd

[brazen veldt]

I'm on arch and after installing my m.2 ssd my second monitor isn't working, they both work but only one at a time and they both work in sddm just not KDE they also only show up in xrandr one at a time

[eager thistle]

Do you have another OS installed, and if so, does that work for both?
Have you moved things from one device to the M.2 drive? or is it simply supplementary to how your system was before?

[brazen veldt]

i only have one os installed which is arch although i have a kvm which the monitor works on
issue happened as soon as i installed the m.2, nothing on it is related to linux as i passthough to the kvm

[eager thistle]

are both monitors hooked up to your GPU?

[brazen veldt]

yes

and if i unplug the main one the second one turns on

but only one at a time

[eager thistle]

does your PSU provide enough power for everything in your machine?

[brazen veldt]

yeah i have never had issues before

[eager thistle]

have you tried taking the M.2 drive out just for troubleshooting?

[brazen veldt]

no i could try it

ill try now

[eager thistle]

it should help narrow things down a little if the only chance you made was hardware based

[brazen veldt]

Alright

[brazen veldt]

I just took the SSD out and both monitors work normally

Just when it is in it breaks one of them

[eager thistle]

my initial reaction is that this is an issue with how much power your machine is using...

maybe with the M.2 drive the PSU can't give out enough for the rest?

[brazen veldt]

Yeah but it works on my kvm?

And I assume it would use more when under heavy load but have never had any other power issues ever

[brazen veldt]

Pcpp estimates 400w and mine is 500 so I should be fine right?

[eager thistle]

oh both work on kvm?

[eager thistle]

I'd usually go a bit more above it by that, it could be the estimate is too conservative with how much power your machine uses, or it could be another issue (though so far as I know the only thing using an M.2 port tends to do if anything, is reduce the normal sata port usage)

[brazen veldt]

Yeah on a kvm everything works fine

And it works in sddm

It's only once KDE boots up

Which is why I don't think it's the power

[eager thistle]

kde or plasma?

[brazen veldt]

KDE plasma

Didn't know they were different sorry

[eager thistle]

I'll try and have a google for plasma specifically

[brazen veldt]

Alr thank you

[eager thistle]

out of interest, amd? nvidia?

[brazen veldt]

Ryzen cpu NVIDIA gpu

[eager thistle]

can you see both in nvidia-settings?

[brazen veldt]

I just assumed it was some config and adding the m.2 threw off like a pcie index or something idk

[brazen veldt]

I'll check

Putting it back in now

@eager thistle it works now???

i dont know how but yeah

wait nvm

both work but the second one is just cloning the first one

they are both in the nvidia settings

[eager thistle]

okay so if they're now mirroring one another, do they show up in whatever settings kde has?

(I'm a gnome user)

[brazen veldt]

i managed to fix it, the displays were on top of eachother in kde after reinstalling the m.2

but before the other one wasnt even there

im not sure how taking it out and putting it back in helped but it worked and i love you

[eager thistle]

sometimes with troubleshooting you just have to fumble around and hope something works

... solved

[grizzled tulip]

#9742 📣 If there is nothing else that we can do for you, please close this thread by adding "[SOLVED]" to the title.

• You can do this on desktop by clicking the three dots on the top right of the page, and pressing "Edit Post".
• You can also do this on Android / iOS by long tapping your post in the text channel list, and tapping "Edit Post".

Your title should be like so: https://cdn.discordapp.com/attachments/503224329191030787/1039841700417384498/image.png
Thank you

[eager thistle]

please follow those instructions 🙂

[brazen veldt]

[SOLVED] second monitor stopped working after installing m.2 ssd