Nouveau - Mar 2013 - [Bug 62848] New: xorg not start after kexec when use nouveau

https://bugs.freedesktop.org/show_bug.cgi?id=62848

          Priority: medium
            Bug ID: 62848
          Assignee: nouveau at lists.freedesktop.org
           Summary: xorg not start after kexec when use nouveau
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: SuloevDmitry at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

I compile linux 3.7.0 on my machine and try boot it using kexec:
1. switch to single mode (rc single);
2. mount /boot parion (mount -oro /boot);
3. load new kernel into memory (kexec -l /boot/kernel-3.7.0 --reuse-cmdline);
4. exec new kernel (kexec -e).
After last command I see how system boots and after starting X I can see only
blank black screen with "_" in top left corner.
I don't have this problem with other drivers. Only with nouveau

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--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
What video card do you have? Can you post some logs? [I think it's
"well known"
that kexec + nouveau don't work well together, but I don't actually know
what
the issues involved are. Might as well use this bug to collect the relevant
info.] I wonder what would happen if you booted with
nouveau.config=NvForcePost=1

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--- Comment #2 from Pierre BLONDEAU <pierre.blondeau at unicaen.fr> ---
Hi,

I have the same problem with a GT218M .

The argument nouveau.config=NvForcePost=1 doesn't work, but if i specify
blacklist=nouveau in the cmdline, all is OK.

If i install the nvidia driver, it's ok too.

I use an ubuntu 14.04 with standard package.

Regards

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--- Comment #3 from Pierre BLONDEAU <pierre.blondeau at unicaen.fr> ---
Created attachment 104231
  --> https://bugs.freedesktop.org/attachment.cgi?id=104231&action=edit
Second start log

I haven't logs before kexec. It's logs after kexec -e

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--- Comment #4 from ridai.govinda at gmail.com ---
I'm still having these same problem with Kernel 4.6.3. Is there a chance to
solve this bug any time in the future?

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Martin Peres <martin.peres at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |MOVED

--- Comment #5 from Martin Peres <martin.peres at free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/42.

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