| Priority | medium |
|---|---|
| Bug ID | 70972 |
| Assignee | nouveau@lists.freedesktop.org |
| Summary | Nouveau fails with broken screen on nv40 with kernel 3.12 |
| QA Contact | xorg-team@lists.x.org |
| Severity | major |
| Classification | Unclassified |
| OS | Linux (All) |
| Reporter | larry.finger@lwfinger.net |
| Hardware | x86-64 (AMD64) |
| Status | NEW |
| Version | unspecified |
| Component | Driver/nouveau |
| Product | xorg |
Created attachment 88259 [details]
Output of dmesg
With nouveau on the graphics adapter on an HP dv2815nr laptop, both console and
X displays show an incorrect scan length with a resulting garbled screen.
The 'lspci -nnv' for this adapter is
00:12.0 VGA compatible controller [0300]: NVIDIA Corporation C67 [GeForce 7150M
/ nForce 630M] [10de:0531] (rev a2) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device [103c:30d6]
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 10
Memory at f4000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at f0000000 (64-bit, non-prefetchable) [size=16M]
[virtual] Expansion ROM at c0000000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel modules: nouveau
This device has never worked with nouveau on any kernel. I am trying to make it
work now as the nv driver is failing in certain cases, and fbdev cannot use the
optimum resolution (1600 x 800) for this laptop.
I believe you attached the wrong dmesg, that one seems more relevant to b43 dev work...
Sorry about that. Let me generate a proper dmesg and post it.
| What | Removed | Added |
|---|---|---|
| Attachment #88259 is obsolete | 1 |
Created attachment 88953 [details]
Correct dmesg output for nouveau
This attachment is the proper one to show the dmesg problem. On this boot, X
did not start due to an xorg.d file calling for driver nv; however, the console
output showed the line breaking.
Yes, I did mean 1280x800. Thanks for the hint. I will look at the two routines you suggest.
I tested 640x480. After X started, it was OK for about 5 seconds, and then it failed in the same way as 1280x800.
No clue if this will help, but we recently noticed that the NV4x IGP's have some differences in register placement. Perhaps this patch: http://lists.freedesktop.org/archives/nouveau/2014-February/016033.html will help something. (See nouveau list for another patch that possibly fixes MSI that comes with 3.13.)
I am now running 3.14-rc1, and the MSI changes for 3.13 should be in my kernel. I added the patch mentioned in comment #7. I did not alter my xorg.conf.d setup and X did not start, but I still had the screen double-up/faulty wrap in the text screen. Thanks for notifying me. Perhaps there are other register location differences.
Well, unrelated to this issue, you probably need http://lists.freedesktop.org/archives/nouveau/2014-February/016032.html For MSI to work properly. We've had reports of issues for people on NV4E, and it's also been confirmed that the registers are in a different place for NV63. It's very likely to also be different on NV67. You can also disable MSI by using nouveau.config=NvMSI=0 . (However if you can confirm that this patch either helps or breaks things, that would be nice -- not a lot of people with this HW.)
Unfortunately, neither the patch nor the patch and the nouveau.config boot change made any difference. I certainly understand that not many people have this hardware.
I also have an NVIDIA GeForce 7150m / nForce 630m and I am also experiencing this problem. The screen is garbled in both X and the console. I noticed that xrandr detects a load on TV-1 even though nothing is connected to this port. I have tried setting the video=TV-1:d and nouveau.tv_disable=1 kernel options, but neither of these have any effect. I can get a clear image if I set the resolution to 1024x768, but this is not ideal as this is not my monitor's native resolution. I am wondering if the cause of the garbled screen could be TV-out misdetection?
A few things to try if you're feeling motivated to resolve this: (a) Does setting the mode work properly with the xf86-video-nv driver (and with nouveau entirely disabled)? If so, try to see what the two are doing differently. (b) What about nvidiafb (drivers/video/nvidia)? (c) Do a mmiotrace of the blob and compare what it's doing to what nouveau's doing.
I tried the nv driver and it did not list any resolutions above 1024x768, so I could not find out if it would work at 1280x800.
Created attachment 115254 [details]
mmiotrace of NVIDIA proprietary driver
| What | Removed | Added |
|---|---|---|
| Attachment #115254 filename | mmiotrace_nvidia.tar.xz | mmiotrace_GeForce_7150M_nForce_630M_nvidia.tar.xz |
I no longer have the computer with the adaptor that failed. I now am using a machine with a GeForce 7150M/nForce 630M with PCI ID 10de:0531. It works perfectly with nouveau.
| What | Removed | Added |
|---|---|---|
| Attachment #115254 description | mmiotrace of NVIDIA proprietary driver | mmiotrace |
(In reply to Larry Finger from comment #15) > I no longer have the computer with the adaptor that failed. I now am using a > machine with a GeForce 7150M/nForce 630M with PCI ID 10de:0531. It works > perfectly with nouveau. >From what I've heard, it would seem that some GeForce 7150M/nForce 630Ms work perfectly with nouveau, while others exhibit the garbled screen problem. I wonder why this could be? What is the screen resolution of your new machine?
| What | Removed | Added |
|---|---|---|
| Attachment #115254 filename | mmiotrace_GeForce_7150M_nForce_630M_nvidia.tar.xz | mmiotrace_GeForce_7150M_nForce_630M_proprietary.tar.xz |
| Attachment #115254 description | mmiotrace | mmiotrace of NVIDIA proprietary driver |
| What | Removed | Added |
|---|---|---|
| Attachment #115278 filename | mmiotrace_GeForce_7150M_nForce_630M_glxgears.tar.xz | mmiotrace_GeForce_7150M_nForce_630M_proprietary_glxgears.tar.xz |
| Attachment #115278 description | mmiotrace with glxgears | mmiotrace of NVIDIA proprietary driver with glxgears |
Is it possible for anyone at your end to do some analysis based on the information I have provided so far?
I have laptop with NVIDIA Corporation C67 [GeForce 7150M / nForce 630M]
[10de:0531] (rev a2) card onboard and native 1280x800 resolution. And it shows
broken picture with nouveau.
Full info with lspci -nnv:
00:12.0 VGA compatible controller [0300]: NVIDIA Corporation C67 [GeForce 7150M
/ nForce 630M] [10de:0531] (rev a2) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device [103c:30cf]
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 16
Memory at f5000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at f4000000 (64-bit, non-prefetchable) [size=16M]
[virtual] Expansion ROM at f6280000 [disabled] [size=128K]
Capabilities: [48] Power Management version 2
Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
Kernel driver in use: nvidia