[Bug 208333] New: No desktop on 5.8 rc1 rc2 with Gtx 760 driver nouveau

[Bug 208333] New: No desktop on 5.8 rc1 rc2 with Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

            Bug ID: 208333
           Summary: No desktop on 5.8 rc1 rc2 with Gtx 760 driver nouveau
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.8 rc2
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: robyguerrini@yahoo.it
        Regression: No

With Kernel 5.8 rc1/rc2/ the desktop don't is visualized.... this on Ubuntu
20.04 and vedeo card Gtx 760 Nvidia with Nouveau Driver. The machine is on...
the keyboards led working but the screen is black.

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[Bug 208333] No desktop on 5.8 rc1 rc2 with Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

--- Comment #1 from Roberto Guerrini (robyguerrini@yahoo.it) ---
Tested with 5.8 rc3 also and the result is the same .... black screen ... but
the computer works so I think it is the Nouveau driver with the gtx 760 to
wrong the video output.

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[Bug 208333] Black screen with Kernel 5.8 rc1/2/3/4 with Nvidia Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

Roberto Guerrini (robyguerrini@yahoo.it) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|No desktop on 5.8 rc1 rc2   |Black screen with Kernel
                   |with Gtx 760 driver nouveau |5.8 rc1/2/3/4 with Nvidia
                   |                            |Gtx 760 driver nouveau

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[Bug 208333] Black screen with Kernel 5.8 rc1/2/3/4 with Nvidia Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

--- Comment #2 from Roberto Guerrini (robyguerrini@yahoo.it) ---
Tested with 5.8 rc4 also and the result is the same.... Black screen with all
monitor with Gtz 760 and nouveau driver!!!

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[Bug 208333] Black screen with Kernel 5.8 rc1/2/3/4 with Nvidia Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

Ilia Mirkin (imirkin@alum.mit.edu) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |imirkin@alum.mit.edu

--- Comment #3 from Ilia Mirkin (imirkin@alum.mit.edu) ---
Has nouveau ever worked with this board? Can you get dmesg from a failing boot?

Unfortunately without logs, it's a bit hard to tell what's going on. Chances
are the machine is fine, so you should be able to ssh in and get them. Or
perhaps you can acquire logs from a previous boot, depending on your logging
system.

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[Bug 208333] Black screen with Kernel 5.8 rc1/2/3/4 with Nvidia Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

--- Comment #4 from Roberto Guerrini (robyguerrini@yahoo.it) ---
Il giorno lun, 06/07/2020 alle 05.10 +0000, bugzilla-
daemon@bugzilla.kernel.org ha scritto:
> https://bugzilla.kernel.org/show_bug.cgi?id=208333
> 
> Ilia Mirkin (imirkin@alum.mit.edu) changed:
> 
>            What    |Removed                     |Added
> -------------------------------------------------------------------
> ---------
>                  CC|                            |imirkin@alum.mit.edu
> 
> --- Comment #3 from Ilia Mirkin (imirkin@alum.mit.edu) ---
> Has nouveau ever worked with this board? Can you get dmesg from a
> failing boot?
> 
> Unfortunately without logs, it's a bit hard to tell what's going on.
> Chances
> are the machine is fine, so you should be able to ssh in and get
> them. Or
> perhaps you can acquire logs from a previous boot, depending on your
> logging
> system.
> 
> Hi, you are right ... you need the log to know what happens ... As
> soon as I can I reassemble the 5.8 kernel and then I will save the
> log to make you understand what the problem is !!! However with
> Kernel 5.7 it works perfectly .... this with the Nouveau driver ...
> there was the problem with the 5.7 of the hadmi audio not working but
> it was solved with the 5.7.7 version which works very well but
> unfortunately the 5.8 it doesn't work and the screen remains black
> even if the machine is free ... so something of the video driver has
> been changed from 5.7 to 5.8 and with the Nvidia gtx 760 and driver
> nouveau the result is this ... soon I'll send you the log 5.8 not
> working ... hello and thank you !!

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[Bug 208333] Black screen with Kernel 5.8 rc1/2/3/4 with Nvidia Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

--- Comment #5 from Roberto Guerrini (robyguerrini@yahoo.it) ---
Basically I saw where the loading stops ... it stops at "Started Gnome Display
Manager"
Gdm.service

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[Bug 208333] Black screen with Kernel 5.8 rc1/2/3/4 with Nvidia Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

--- Comment #6 from Roberto Guerrini (robyguerrini@yahoo.it) ---
Il giorno lun, 06/07/2020 alle 05.10 +0000, bugzilla-
daemon@bugzilla.kernel.org ha scritto:
> https://bugzilla.kernel.org/show_bug.cgi?id=208333
> 
> Ilia Mirkin (imirkin@alum.mit.edu) changed:
> 
>            What    |Removed                     |Added
> -------------------------------------------------------------------
> ---------
>                  CC|                            |imirkin@alum.mit.edu
> 
> --- Comment #3 from Ilia Mirkin (imirkin@alum.mit.edu) ---
> Has nouveau ever worked with this board? Can you get dmesg from a
> failing boot?
> 
> Unfortunately without logs, it's a bit hard to tell what's going on.
> Chances
> are the machine is fine, so you should be able to ssh in and get
> them. Or
> perhaps you can acquire logs from a previous boot, depending on your
> logging
> system.
> 

Basically I saw where the loading stops ... it stops at "Gnome Display
Manager" 
Gdm.service

Bye

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[Bug 208333] Black screen with Kernel 5.8 rc1/2/3/4 with Nvidia Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

--- Comment #7 from Roberto Guerrini (robyguerrini@yahoo.it) ---

in wayland the system works while in gnome it remains on the black screen

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[Bug 208333] Black screen with Kernel 5.8 rc1/2/3/4 with Nvidia Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

--- Comment #8 from Roberto Guerrini (robyguerrini@yahoo.it) ---
(In reply to Roberto Guerrini from comment #6)
> Il giorno lun, 06/07/2020 alle 05.10 +0000, bugzilla-
> daemon@bugzilla.kernel.org ha scritto:
> > https://bugzilla.kernel.org/show_bug.cgi?id=208333
> > 
> > Ilia Mirkin (imirkin@alum.mit.edu) changed:
> > 
> >            What    |Removed                     |Added
> > -------------------------------------------------------------------
> > ---------
> >                  CC|                            |imirkin@alum.mit.edu
> > 
> > --- Comment #3 from Ilia Mirkin (imirkin@alum.mit.edu) ---
> > Has nouveau ever worked with this board? Can you get dmesg from a
> > failing boot?
> > 
> > Unfortunately without logs, it's a bit hard to tell what's going on.
> > Chances
> > are the machine is fine, so you should be able to ssh in and get
> > them. Or
> > perhaps you can acquire logs from a previous boot, depending on your
> > logging
> > system.
> > 
> 
> Basically I saw where the loading stops ... it stops at "Gnome Display
> Manager" 
> Gdm.service
> 
> in wayland the system works while in gnome it remains on the black screen

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[Bug 208333] Black screen with Kernel 5.8 rc1/2/3/4 with Nvidia Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

--- Comment #9 from Nathan Bryant (nbryant@optonline.net) ---
I'm seeing similar symptoms on my Geforce GTX 1070 (GP104). Screen blanks after
GDM login, Wayland works, Xorg doesn't. This is a regression from 5.7 to
5.8-rc1.

As long as I only have my primary monitor connected, after the failure I can
still switch to another VT with Ctrl-Alt-F3 and log in to the text console.

~/.local/share/xorg/Xorg.0.log has a few of these:

[    17.240] (EE) modeset(0): failed to set mode: Invalid argument

Bisected to this commit:

fa4f4c213f5f7807360c41f2501a3031a9940f3a is the first bad commit
commit fa4f4c213f5f7807360c41f2501a3031a9940f3a
Author: James Jones <jajones@nvidia.com>
Date:   Mon Feb 10 15:15:55 2020 -0800

    drm/nouveau/kms: Support NVIDIA format modifiers

    Allow setting the block layout of a nouveau FB
    object using DRM format modifiers.  When
    specified, the format modifier block layout and
    kind overrides the GEM buffer's implicit layout
    and kind.  The specified format modifier is
    validated against the list of modifiers supported
    by the target display hardware.

    v2: Used Tesla family instead of NV50 chipset compare
    v4: Do not cache kind, tile_mode in nouveau_framebuffer
    v5: Resolved against nouveau_framebuffer cleanup

    Signed-off-by: James Jones <jajones@nvidia.com>
    Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

 drivers/gpu/drm/nouveau/dispnv50/wndw.c   | 20 ++++---
 drivers/gpu/drm/nouveau/nouveau_display.c | 89 ++++++++++++++++++++++++++++++-
 drivers/gpu/drm/nouveau/nouveau_display.h |  4 ++
 3 files changed, 104 insertions(+), 9 deletions(-)

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[Bug 208333] Black screen with Kernel 5.8 rc1/2/3/4 with Nvidia Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

--- Comment #10 from Nathan Bryant (nbryant@optonline.net) ---
Looks like they're working on it

https://lists.freedesktop.org/archives/nouveau/2020-July/036264.html

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[Bug 208333] Black screen with Kernel 5.8 rc1/2/3/4 with Nvidia Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

--- Comment #11 from Nathan Bryant (nbryant@optonline.net) ---
Applied the patch (from Comment #10 above). Works for me.

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[Bug 208333] Black screen with Kernel 5.8 rc1/2/3/4 with Nvidia Gtx 760 driver nouveau

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208333

--- Comment #12 from Roberto Guerrini (robyguerrini@yahoo.it) ---
With official Kernel 5.8 the bug is solved.... Good Work!!!!

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