[Nouveau] [Bug 56615] New: Unable to start X on ThinkPad T420s laptop

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=56615

          Priority: medium
            Bug ID: 56615
          Assignee: nouveau at lists.freedesktop.org
           Summary: Unable to start X on ThinkPad T420s laptop
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: mark.cave-ayland at ilande.co.uk
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Driver/nouveau
           Product: xorg

Created attachment 69351
  --> https://bugs.freedesktop.org/attachment.cgi?id=69351&action=edit
dmesg

Hi all,

I am trying to use the discrete graphics (nVidia) graphics card option on my
T420s in order to use the DisplayPort connector, and am currently unable to
start X under Debian Wheezy.

Under advice from IRC, I've upgraded Wheezy with the following components:

Linux kernel 3.7-rc3 from kernel.org
libdrm-2.4.39
xf86-video-nouveau git (commit 8c3e1623b0be15f8cc590d893bfd19be87bd079a)

However I am still unable to start with the new driver in place. When starting
X, the fbconsole remains visible on screen and then "hangs" for nearly a minute
before the login TTY appears again. There are some messages emitted in Xorg.log
and dmesg which are attached to this bug report, along with the output of
lspci.


Many thanks,

Mark.

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