Bug 33165

Yes, this is quite annoying.
I recall I upgraded Ubuntu and rebooted only to encounter this hang.
I can't even boot up some of the live CDs (Ubuntu, Linux Mint, ...) without bypassing nouveau.
I've switched back to the proprietary driver and everything is fine.
But we need to get to the bottom of this.

The nouveau driver does not appear to provide acceleration (at least for the moment) with GT240 cards.  You can get X to start, however, by using

Option "NoAccel" "true"

In your X config.

It is painfully slow though, so the only real option is to use the proprietary NVidia driver.

The KMS/Nouveau framebuffer works as well, but again without acceleration, I have a copy of the dmesg output as it loads the driver and will upload if it will be useful; I guess the devs know of this issue with GT240's though.

Still present :(

Created attachment 63234 [details]
VBIOS for NVIDIA GT ® 240

You might want to actually post a recent kernel log showing your problem, because the developers won't get anywhere with vague descriptions.

Also following up on your mailinglist post:
there is no general problem with nouveau and nv92, which is one of the most common chipsets and works without problems for the most of us.

So you have to be more specific about what problems you do encounter in order to get real help.

I'm trying to customize a live system based on Debian and it has encoutered the same issue with GT240 card. It seems that it works fine with other nVidia cards. But only for GT240, it simply boots and freezes when booting into X system.

If you need any logs, please let me know how to get them.

Please follow http://nouveau.freedesktop.org/wiki/Bugs and open new bug report.

Perhaps it would be better if the default for GT240 was noaccel? There seems to be a lot of bugs reported against it not booting.

I posted here since this is the earliest bug I found at freedesktop. I posted the details about my card in bug 41333 earlier.

I have so far found these other reports:
https://bugs.freedesktop.org/show_bug.cgi?id=41333
https://bugs.freedesktop.org/show_bug.cgi?id=43562
https://bugs.freedesktop.org/show_bug.cgi?id=50043
https://bugs.freedesktop.org/show_bug.cgi?id=52509
https://bugs.launchpad.net/ubuntu/+bug/661939
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/706063
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/574045
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/629667
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/763052
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/951331
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/993907
https://bugzilla.redhat.com/show_bug.cgi?id=704998
https://bugzilla.redhat.com/show_bug.cgi?id=753059
https://bugzilla.redhat.com/show_bug.cgi?id=891505

*** Bug 57211 has been marked as a duplicate of this bug. ***

*** Bug 49057 has been marked as a duplicate of this bug. ***

*** Bug 52509 has been marked as a duplicate of this bug. ***

*** Bug 41333 has been marked as a duplicate of this bug. ***

Please re-test with the latest kernel. There are reports of all nva3+ cards working fine for most people with current software.

I can still reproduce it with kernel 3.11 rc6. Should I run different kernel?

(In reply to comment #15)
> I can still reproduce it with kernel 3.11 rc6. Should I run different kernel?

That is the right kernel. Can you describe exactly what it is that you can reproduce? Logs? etc. See http://nouveau.freedesktop.org/wiki/Bugs/ for what we need.

[I know some of the bugs I marked as a dup of this one had that for old versions, but I'd still like to see updated info.]

Created attachment 84637 [details]
kernel_log.txt

GPU locks up when nouveau module is started with KMS enabled. It is no longer possible to start X in this case but the ttys are still usable.

Created attachment 84638 [details]
kernel_log_drm_debug_14.txt

Kernel log with drm.debug=14

Wow, so right on boot:

[   15.639931] nouveau E[     DRM] GPU lockup - switching to software fbcon
[   15.643599] [drm] Initialized nouveau 1.1.1 20120801 for 0000:04:00.0 on minor 0

It locks up before the probe is even done! One thing to check -- do you have any old firmware in /lib/firmware/nouveau? You shouldn't need any firmware to run nva3 (except the video firmware if you want vdpau).

Also, could you produce a log with

drm.debug=14 nouveau.debug=trace

That might provide more info as to what's going on.

Created attachment 84652 [details]
kernel_log_nouveau_drm_debug.txt

There is certainly no firmware in /lib/firmware/nouveau.
I've now attached a new dmesg output.

*** Bug 61460 has been marked as a duplicate of this bug. ***

I no longer have accel turned off but I have had to add:

        Option     "ShadowFB" "1"           	# [<bool>]

to get mine to work.  

Xorg.0.log:
[   140.225] Current Operating System: Linux ktmtoshiba 3.11.0-0.rc6.git2.1.fc21.x86_64 #1 SMP Thu Aug 22 21:02:34 UTC 2013 x86_
64
[   140.225] Kernel command line: BOOT_IMAGE=/vmlinuz-3.11.0-0.rc6.git2.1.fc21.x86_64 root=UUID=895ff4c3-db90-4071-aeab-a0ec2d6b
94cf ro rd.md=0 rd.lvm=0 rd.dm=0 rd.luks=0 ipv6.disable=1 rhgb quiet acpi_backlight=vendor acpi_osi=Linux
[   140.225] Build Date: 30 July 2013  06:10:29AM
[   140.225] Build ID: xorg-x11-server 1.14.2-9.fc20 
[   140.225] Current version of pixman: 0.30.0

[   140.567] (II) Module nouveau: vendor="X.Org Foundation"
[   140.567] 	compiled for 1.14.2, module version = 1.0.9
[   140.567] 	Module class: X.Org Video Driver
[   140.567] 	ABI class: X.Org Video Driver, version 14.1

dmesg:
[    4.516476] fbcon: nouveaufb (fb0) is primary device
[    6.059440] nouveau E[     DRM] GPU lockup - switching to software fbcon
[    6.072773] nouveau 0000:01:00.0: fb0: nouveaufb frame buffer device
[    6.072776] nouveau 0000:01:00.0: registered panic notifier
[    6.072852] [drm] Initialized nouveau 1.1.1 20120801 for 0000:01:00.0 on minor 0

So, Stikonas's bug is due to PGRAPH not processing any commands .... ever.

I pushed his mmiotrace in the vbios repo for anyone willing to check what is wrong in nouveau's way of setting up pgraph.

*** Bug 52244 has been marked as a duplicate of this bug. ***

Still present in 3.13.2-gentoo. I found that -EBUSY returns from nv50_fbcon_imageblit.

> what is wrong in nouveau's way of setting up pgraph.
Does it mean that the bug somewhere in nv50_grctx_generate? Just to be sure that bug in this function, is it possible to replace it using data from mmiotrace of nvidia driver? For me it is not obvious how to modificate nv50_grctx_fill in that case, what nv50_grctx_init should write to *size and, after all, may it help somehow?

Created attachment 95408 [details] [review]
initialize stuff for gddr5 ram

This patch is based on Andrew's mmiotrace. I saw a sequence of init that I didn't see in other traces for working cards. Andrew -- would be interesting if you could check it out and see if it helps. The algorithm I came up with is insane -- there has to be some sort of data-driven thing going on there, but I couldn't work it out.

For people having issues, please do a mmiotrace of the blob loading on your card (see https://wiki.ubuntu.com/X/MMIOTracing for instructions), and send it (xz -9'd) to mmio.dumps@gmail.com.

(In reply to comment #26)
> Created attachment 95408 [details] [review] [review]
> initialize stuff for gddr5 ram
> 
> This patch is based on Andrew's mmiotrace. I saw a sequence of init that I
> didn't see in other traces for working cards. Andrew -- would be interesting
> if you could check it out and see if it helps. The algorithm I came up with
> is insane -- there has to be some sort of data-driven thing going on there,
> but I couldn't work it out.
> 
> For people having issues, please do a mmiotrace of the blob loading on your
> card (see https://wiki.ubuntu.com/X/MMIOTracing for instructions), and send
> it (xz -9'd) to mmio.dumps@gmail.com.

I might be able to test this patch in the middle of April. Sorry, I can't access that computer now.

For me, with this patch the problem is still present. I sent my mmiotrace (NVIDIA Corporation GT215 [GeForce GT 240]).

Created attachment 95418 [details] [review]
another patch for gddr5 ram

I made this patch using my mmiotrace, but it doesn't help either.

Comment on attachment 95408 [details] [review]
initialize stuff for gddr5 ram

Review of attachment 95408 [details] [review]:
-----------------------------------------------------------------

::: drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c
@@ +365,5 @@
> +		/* XXX this algorithm is insane, find some sanity to it. */
> +		/* [1] MMIO32 R 0x100268 0x30030200 PFB.SUBPART_CONFIG => { SELECT_MASK = 0x2 | UNK16 = 0x3 | ENABLE_MASK = 0x3 } */
> +		nv_wr32(pfb, 0x10fcac, 0x00001f01);
> +		for (o = 0; o < 4; o++) {
> +			int off = offsets[i];

maybe int off = offsets[o]; ?

@@ +387,5 @@
> +			for (i = 0x20, idx = 0; i < 0x30; i++, idx++) {
> +				int pat = pattern[2 + (idx % 2)];
> +				if (i == 0x26)
> +					pat = 0;
> +				if (i == 0x1f)

looks like this condition is always false in this for-loop

(In reply to comment #29)
> Created attachment 95418 [details] [review] [review]
> another patch for gddr5 ram
> 
> I made this patch using my mmiotrace, but it doesn't help either.

Oh well. Indeed the values in your mmiotrace are different, but your and Andrew's mmiotrace are the only traces I've seen that actually have the writes to those 0x10fxyz registers. (A few other traces have writes to the similar-but-different DDR3 registers.)

And yes, I definitely did want to use offsets[o] in my patch.

Well, perhaps this 0x10f stuff has nothing to do with the issue. My observation was that it seemed like for all the people it was broken for had GDDR5 ram, which is why I went in this direction.

I'm trying like crazy to figure out why I have GPU lockups, but all the bugs seem to dead end. What is the current status of this? More information, not going to fix, unconfirmed? I have an NVA3 card (Quadro FX 1800M, GT215) which cannot startx with acceleration, even with firmware.

Let me know if that's applicable to this bug and how I can provide information, if so. For reference, I'm on Arch 64bit. Trying to track down similar bugs to decide if I'm a duplicate issue or if I should start a new report.

*** Bug 77371 has been marked as a duplicate of this bug. ***

Could you guys give this patch a try?

http://cgit.freedesktop.org/~darktama/nouveau/commit/?id=1205e927a835cf9d707bd558c067f4c00ed31ec5

Thanks,
Ben.

Awesome, it works for me.

Linux 3.14.14-gentoo
OpenGL vendor string: nouveau
OpenGL renderer string: Gallium 0.4 on NVA3
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.2.7
OpenGL core profile shading language version string: 3.30

Created attachment 107979 [details]
noise example

In glxgears on some frames appears color noise, and it disappears or changes on next frame.
Noise appears at some frames in glxgears, and it disappears or on next frame.
Same style noise may appear (shuffled pixels) while scrolling in Firefox or switching tabs.

Created attachment 107980 [details]
kernel log for weston freeze

In weston at some time computer stops responding at keyboard and mouse events.

I applied that patch to Ubuntu Trusty 3.13.0-38.65, and it gives a huge improvement. X no longer crashes on startup, and 3D acceleration works.

However I also get the glitchy noise a few times a second, except when showing a static image. It is all over the screen, and sometimes appears as triangles.

Running glxgears and Firefox at the same time also starts giving errors in the kernel log pretty quickly.

Created attachment 108030 [details]
Firefox and glxgears at the same time

*** Bug 78570 has been marked as a duplicate of this bug. ***

*** Bug 89991 has been marked as a duplicate of this bug. ***

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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/12.