Re: kern/51590 (nouveau is not working correctly on my GTX 765m)

[Adrien Fernandes <adrien_fernandes2%hotmail.com@localhost>]

On Mon, Dec 24, 2018 at 09:20:46AM +0000, mrg%NetBSD.org@localhost wrote:
> Synopsis: nouveau is not working correctly on my GTX 765m
> 
> State-Changed-From-To: open->feedback
> State-Changed-By: mrg%NetBSD.org@localhost
> State-Changed-When: Mon, 24 Dec 2018 09:20:45 +0000
> State-Changed-Why:
> can you test this in -current?  it might work properly now.  thanks!

I tried with a freshly downloaded NetBSD-current the 26th December 2018.

BEFORE : The former behavior was like a five side dice. You throw it and you
obtain one of the following five behaviors :

	1. The system boots correctly. The terminal resolution is automatically
	set to 1920x1080 (my screen resolution). Everything seems to be working
	until I try to start X where NetBSD simply crashes and reboot instantly
	causing the root partition to be "dirty" and requiring a check at the
	next boot.

	2. The display turns black as soon as nouveau is supposed to be loaded
	BUT the system is still correctly running in the back. I can connect to
	my accounts and ask for a reboot writing "shutdown -r now" blindly. The
	system correctly reboots. No file system problem.

	3. The display turns BLACK as soon as nouveau is supposed to be loaded.
	The system is frozen and the GPU's fan (or CPU's fan, I don't really
	know) is turning faster and faster, up to its maximum speed. I have to
	press and hold down the power button to stop the computer. The following
	boot will require a file system check.

	4. The display turns GREEN as soon as nouveau is supposed to be loaded.
	The system is frozen and the GPU's fan (or CPU's fan, I don't really
	know) is turning faster and faster, up to its maximum speed. I have to
	press and hold down the power button to stop the computer. The following
	boot will require a file system check.

	5. The display turns GRAY as soon as nouveau is supposed to be loaded.
	The system is frozen and the GPU's fan (or CPU's fan, I don't really
	know) is turning faster and faster, up to its maximum speed. I have to
	press and hold down the power button to stop the computer. The following
	boot will require a file system check.

AFTER : There's only one behavior now. I took two pictures with my phone so you
can see by yourself what it does. The system boots correctly until it tries to
load nouveau. The system displays a lot of lines about nouveau (enough to fill
the screen as you will see on my first picture) and stop for maybe 20 or 30
seconds as-is. The first picture is showing what NetBSD is displaying without to
move for half a minute. After that, the screen turns black (second picture) and
the fan(s) are starting to turn faster and faster. Again, I have to stop the
laptop pressing and holding the power button and the following boot will require
a file system check. The system freezes. It means there is no log, no save of
what it does. /var/log/messages was an empty file after the first try (and first
freeze) of NetBSD-current.

Here are the two pictures :

https://i.imgur.com/b3Hp6fZ.jpg
https://i.imgur.com/b8GoeMs.jpg