Bug 81363 - [NV84] Black screen after UDEV is intialized
Summary: [NV84] Black screen after UDEV is intialized
Status: NEW
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/nouveau (show other bugs)
Version: 7.7 (2012.06)
Hardware: x86-64 (AMD64) Linux (All)
: medium major
Assignee: Nouveau Project
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-07-14 22:42 UTC by Jeff
Modified: 2015-12-20 03:09 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Attachments
Dmesg output (72.01 KB, text/plain)
2014-07-14 22:42 UTC, Jeff
no flags Details
lspci -v output (10.77 KB, text/plain)
2014-07-14 22:43 UTC, Jeff
no flags Details
Xorg log (38.50 KB, text/plain)
2014-07-14 22:43 UTC, Jeff
no flags Details
Kernel 3.16-rc5 (72.46 KB, text/plain)
2014-07-15 23:57 UTC, Jeff
no flags Details
Kernel 3.16-rc5 (72.46 KB, text/plain)
2014-07-15 23:58 UTC, Jeff
no flags Details
lspci -v on kernel 3.16-rc5 (10.77 KB, text/plain)
2014-07-15 23:59 UTC, Jeff
no flags Details
Xorg log on 3.16-rc5 (38.51 KB, text/plain)
2014-07-16 00:00 UTC, Jeff
no flags Details

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Description Jeff 2014-07-14 22:42:38 UTC
Created attachment 102804 [details]
Dmesg output

When I boot my computer with nouveau and KMS, I get a black screen after UDEV starts on Debian Testing. I've attached some logs.
Comment 1 Jeff 2014-07-14 22:43:07 UTC
Created attachment 102805 [details]
lspci -v output
Comment 2 Jeff 2014-07-14 22:43:22 UTC
Created attachment 102806 [details]
Xorg log
Comment 3 Ilia Mirkin 2014-07-14 22:51:21 UTC
Did this ever work? Looks like the internal LVDS screen is detected just fine, resolutions are all there, no errors. Is it right that the internal screen is 1920x1200?

Can you confirm that the problem still exists with 3.16-rc5?
Comment 4 Jeff 2014-07-15 00:02:50 UTC
I will compile and test 3.16-rc5

I've only ever used Nvidia's drivers on this particular computer so far. The screen is 1920x1200. It is an old Dell XPS 1730.
Comment 5 Jeff 2014-07-15 23:51:08 UTC
It is the same with 3.16-rc5
Comment 6 Jeff 2014-07-15 23:57:40 UTC
Created attachment 102875 [details]
Kernel 3.16-rc5
Comment 7 Jeff 2014-07-15 23:58:02 UTC
Created attachment 102876 [details]
Kernel 3.16-rc5
Comment 8 Jeff 2014-07-15 23:59:44 UTC
Created attachment 102877 [details]
lspci -v on kernel 3.16-rc5
Comment 9 Jeff 2014-07-16 00:00:04 UTC
Created attachment 102878 [details]
Xorg log on 3.16-rc5
Comment 10 Jeff 2015-01-02 02:09:19 UTC
kernel 3.18 has the same issue
Comment 11 Jeff 2015-12-19 00:58:37 UTC
This is still not working on Kernel 4.2. But during this test I had the laptop connected to a DVI output. And the DVI output worked great. So it seems this is not working for the LVDS only, which has the black light on but remains blank/black.

I noticed on a Google search that there had been blank screen issues on pre-nv50 drivers: http://patchwork.ozlabs.org/patch/215168/

I wonder if this is something that exists on my card as well. I was glad to see the display working on the DVI output, but I am hoping to have this working on LVDS at some point.

Thanks
Comment 12 Ilia Mirkin 2015-12-19 18:49:44 UTC
A random thing to try -- boot with

video=LVDS-2:d

(It appears that you have 2 GPUs... perhaps they're both connected to the LVDS somehow, and the second one turns it off?)
Comment 13 Jeff 2015-12-20 03:09:35 UTC
(In reply to Ilia Mirkin from comment #12)
> A random thing to try -- boot with
> 
> video=LVDS-2:d
> 
> (It appears that you have 2 GPUs... perhaps they're both connected to the
> LVDS somehow, and the second one turns it off?)

I tried this. And it was still a black/blank screen. However maybe you are onto something as this is a laptop with a Nvidia 8700m setup as an sli card. Though with the proprietary driver and with Windows it has no issue booting up properly. However I find windows really slow and would like to switch to nouveau to future proof my laptop since I am betting Nvidia won't develop a Wayland driver for this card.


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