Bug 679575

Summary: [NV84] [NVA5] DRM inhibits serial console
Product: [Fedora] Fedora Reporter: John Reiser <jreiser>
Component: xorg-x11-drv-nouveauAssignee: Ben Skeggs <bskeggs>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: unspecified    
Version: 15CC: airlied, ajax, bskeggs, mcepl
Target Milestone: ---Keywords: Triaged
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-08-07 15:32:14 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Attachments:
Description Flags
/var/log/Xorg.0.log
none
output of dmesg
none
/var/log/messages
none
[NVA5] /var/log/Xorg.0.log
none
[NVA5] output of dmesg
none
[NVA5] /var/log/messages none

Description John Reiser 2011-02-22 21:49:49 UTC
Description of problem: Serial console (booting with additional kernel parameter " console=ttyS0,115200") does not work with DRM.  Instead of the normal console messages, including drivel at boot, almost nothing comes over the serial line.


Version-Release number of selected component (if applicable):
xorg-x11-drv-nouveau-0.0.16-19.20110216git42c16ff.fc15.x86_64


How reproducible: every time


Steps to Reproduce:
1. boot gfx_test_week_20110221_x86-64.iso with additional kernel parameter " console=ttyS0,115200"
2.
3.
  
Actual results: Empty 25x80 light gray "console terminal" in upper left of screen, instead of usual rhgb graphical progress screen.  Almost no console messages appear on serial line.  The one line that does appear is
  [   1.223128] [drm] nouveau 0000:01:00.0: Pointer to BIT loadval table invalid
and the contents of that one line vary by model of video adapter.



Expected results:  No interference.  ttyS0 is the serial line, tty0 (no 'S') is the vga console.  Using only the serial line should have no effect on the vga console.  If using both " console=ttyS0,115200 console=tty0" then it would be OK to disturb the vga graphics console (with the vga text console.)


Additional info:

Comment 1 Matěj Cepl 2011-03-06 23:25:09 UTC
Thanks for the bug report.  We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue.

It would be interesting to know more about what's going on inside of the system, when this happens. Please attach

* your X server config file (/etc/X11/xorg.conf, if available),
* X server log file (/var/log/Xorg.*.log)
* output of the dmesg command, and
* system log (/var/log/messages)

to the bug report as individual uncompressed file attachments using the bugzilla file attachment link above.

We will review this issue again once you've had a chance to attach this information.

Thanks in advance.

Comment 2 John Reiser 2011-03-07 01:26:07 UTC
Created attachment 482573 [details]
/var/log/Xorg.0.log

There is no /etc/X11/xorg.conf.

Comment 3 John Reiser 2011-03-07 01:26:40 UTC
Created attachment 482574 [details]
output of dmesg

Comment 4 John Reiser 2011-03-07 01:27:12 UTC
Created attachment 482575 [details]
/var/log/messages

Comment 5 John Reiser 2011-03-07 19:05:52 UTC
Created attachment 482767 [details]
[NVA5] /var/log/Xorg.0.log

Comment 6 John Reiser 2011-03-07 19:06:41 UTC
Created attachment 482768 [details]
[NVA5] output of dmesg

Comment 7 John Reiser 2011-03-07 19:07:32 UTC
Created attachment 482769 [details]
[NVA5] /var/log/messages

Comment 8 John Reiser 2011-03-07 19:09:21 UTC
Same problem on a recent card:
01:00.0 VGA compatible controller [0300]: nVidia Corporation GT200 [GeForce GT 220] [10de:0a20] (rev a2)
Adding "[NVA5]" to the Summary title.

Comment 9 Fedora End Of Life 2012-08-07 15:32:17 UTC
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