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I have a Dell 17xps with an NVidia Optimus 555M graphics card.

Annoying History:

It's all worked ok with Ubuntu 12.x and bumblebee. But I really want to use 14.04 and nvidia-prime.

I've basically been following these instructions: How to get an Optimus 650 working

Everything worked fine until reboot. After reboot, /dev/nvid* was empty. I found someone else talking about this on X.org here:

X.org link

and added the script to my cron at reboot.

Problem: Symptom #1: It boots and ls /dev/nvid* gives results. It prompts me with Unity's login screen. But when I log in, it just hangs. I can basically see the mouse and the login background and it just stays there. I cntrl-alt-F1 and look a the syslog and there's nothing interesting. No video errors at all.

Symptom #2: I installed fluxbox, which I have used before. When I login to that, it seems great. Fluxbox is limited, so GLXGears doesn't like it (anyone know if there's a way around that?), but everything seems to render. I can't tell for sure if I'm on the NVidia side of the card or the Intel, but from the heat of the laptop, it feels like the NVidia side.

Symptom#2B: In fluxbox, I can open Nvidia-settings. And I don't have an NVidia PRIME section. No clue why? If I try to install nvidia-prime, it tells me it's already installed. But it's not on the settings box.

Symptom#3: I have no xorg.conf file in /etc/X11... don't I need one? I'm sure I didn't delete it. I remember nvidia-xconfig (I think?) will create one, since fluxbox is loading without one, maybe I'm wrong? I know nvidia-xconfig has broken my system before.

I'm running NVidia 331.38 drivers. lspci gives me this: 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GF116M [GeForce GT 555M/635M] (rev a1)

Help? Thank you. --kevin

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I'm begging to think no one else has this card and that NVidia never tested the drivers. I reached out to NVidia and still don't haven't been granted privs to ask a question in their forums (...waiting...). I'll let you know if I hear more. –  kjhngisd Jul 20 '14 at 12:25
I found this link maybe it can be helpful –  Lety Jul 20 '14 at 16:02
Thanks Letizia, I'll take a look –  kjhngisd Jul 21 '14 at 22:27
I checked the link, Letizia -- no luck. It's interesting, but my .nvidia-settings-rc has no attributes, so loading it or not doesn't matter. Thanks, though –  kjhngisd Jul 22 '14 at 2:56
Oh, also found out that the .nvidia-settings-rc seems to get overwritten on each reboot, if i'm using the nvidia drivers. And the xorg.conf is deleted. So changing either isn't helpful. –  kjhngisd Jul 22 '14 at 22:50

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