Bug 77106

Summary: Blank screen and errors on Thinkpad T440p GeForce 730M/Intel optimus setup
Product: xorg Reporter: Martin Jørgensen <mkj>
Component: Driver/nouveauAssignee: Nouveau Project <nouveau>
Status: RESOLVED INVALID QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg
none
xorg log using nouveau none

Description Martin Jørgensen 2014-04-06 14:18:51 UTC 
My setup is Gentoo +:
kernel 3.14, Mesa 10.4.0, xserver 1.15, libdrm 2.4.52, nouveau 1.0.10

Normally my machine works using the Intel HD graphics only, but I wanted to experiment with nvidia/nouveau drivers.
Using the proprietary Nvidia driver, and kernel 3.13, I managed to make a xorg.conf file that "disabled" the Intel card and only the Nvidia card primarily for 2D/3D. 
Using the same xorg.conf, and the 3.14 kernel, I replaced the nvidia driver with nouveau, and I end up with a blank screen and some weird errors in my dmesg.

Any ideas?
Comment 1 Martin Jørgensen 2014-04-06 14:19:09 UTC 
Created attachment 96984 [details]
dmesg
Comment 2 Martin Jørgensen 2014-04-06 14:19:35 UTC 
Created attachment 96985 [details]
xorg log using nouveau
Comment 3 Ilia Mirkin 2014-08-21 23:08:26 UTC 
Can you try it with 3.15.x and Mesa 10.2.2 or later?
Comment 4 Martin Jørgensen 2016-05-22 13:43:06 UTC 
the laptop is not in my possession anymore, so i'm closing the bug.
also, reading up on the subject it seems that some t440p laptops has issues after a bios upgrade.
https://github.com/Bumblebee-Project/bbswitch/issues/78

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