ubuntu-x-swat team mailing list archive

Thread
Date

[Bug 901386] Re: Ubuntu 3.2 kernels vs. nvidia-current vs GTX 560 (Mainline works)

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: Haitao Li <lihaitao@xxxxxxxxx>
Date: Sat, 24 Dec 2011 18:07:35 -0000
Reply-to: Bug 901386 <901386@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

I found the blank screen is actually caused busy xorg process. And there
are huge number of error like below in kern.log.  Add intel_iommu=off to
kernel boot option and now it works perfectly.

Dec 24 13:28:54 ainur kernel: [  420.863224] DMAR:[DMA Read] Request device [01:00.0] fault addr 122886000
Dec 24 13:28:54 ainur kernel: [  420.863225] DMAR:[fault reason 01] Present bit in root entry is clear
Dec 24 13:28:54 ainur kernel: [  420.866458] DRHD: handling fault status reg 2

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers in Ubuntu.
https://bugs.launchpad.net/bugs/901386

Title:
  Ubuntu 3.2 kernels vs. nvidia-current vs GTX 560 (Mainline works)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/901386/+subscriptions