Bug 27942 - Screen garbled with GeForce 6150 Force 430
Summary: Screen garbled with GeForce 6150 Force 430
Status: RESOLVED OBSOLETE
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: All Linux
: P1 high
Assignee: drivers_video-dri
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-02-01 03:32 UTC by Larry Finger
Modified: 2012-08-14 15:56 UTC (History)
2 users (show)

See Also:
Kernel Version:
Subsystem:
Regression: No
Bisected commit-id:

Attachments
Dmesg output with nouveau enabled (52.96 KB, text/plain)
2011-02-01 03:32 UTC, Larry Finger 		Details
Dmesg output with nouvea disabled with "nomodeset" (49.42 KB, text/plain)
2011-02-01 03:37 UTC, Larry Finger 		Details
dmesg without "nomodeset" (100 bytes, text/plain)
2012-01-24 19:03 UTC, Simon Deziel 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Larry Finger 2011-02-01 03:32:59 UTC 
Created attachment 45692 [details]
Dmesg output with nouveau enabled

With kernel 2.6.38-rc2-Linus-00324-g70d1f36 (and earlier), running without a "nomodeset" option in the boot line results in a screen that appears to be sheared. From the colors, etc., it appears to be nearly correct.

The lspci -nnkx output for the device is:

00:0d.0 VGA compatible controller [0300]: nVidia Corporation C61 [GeForce 6150SE nForce 430] [10de:03d0] (rev a2)
        Subsystem: Micro-Star International Co., Ltd. Device [1462:7309]
00: de 10 d0 03 07 00 b0 00 a2 00 00 03 00 00 00 00
10: 00 00 00 de 0c 00 00 c0 00 00 00 00 04 00 00 dd
20: 00 00 00 00 00 00 00 00 00 00 00 00 62 14 09 73
30: 00 00 e4 df 48 00 00 00 00 00 00 00 0a 01 00 00
Comment 1 Larry Finger 2011-02-01 03:37:39 UTC 
Created attachment 45712 [details]
Dmesg output with nouvea disabled with "nomodeset"
Comment 2 Simon Deziel 2012-01-24 19:03:24 UTC 
Created attachment 72183 [details]
dmesg without "nomodeset"
Comment 3 Simon Deziel 2012-01-24 19:07:35 UTC 
I'm observing a similar issue with various kernels from 3.2 to 3.3rc1. This only manifests when booting a Xen dom0 without "nomodeset" so I'm not sure that's actually the same bug.

The console screen gets corrupted at login prompt but is OK before as boot messages are displayed properly. The video card info is :

$ lspci -nnkx -s 01:00.0
01:00.0 VGA compatible controller [0300]: nVidia Corporation NV11 [GeForce2 MX/MX 400] [10de:0110] (rev b2)
	Subsystem: Micro-Star International Co., Ltd. MSI GeForce2 MX400 Pro32S [MS-8817] [1462:8817]
	Kernel modules: nouveau, nvidiafb, rivafb
00: de 10 10 01 07 00 b0 02 b2 00 00 03 00 20 00 00
10: 00 00 00 dc 08 00 00 d0 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 62 14 17 88
30: 00 00 00 00 60 00 00 00 00 00 00 00 05 01 05 01

The bug was initially opened on Launchpad (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/917211).
Comment 4 Simon Deziel 2012-01-24 19:45:48 UTC 
Please disregard my comments (#2 and #3) as I'm looking at the wrong bug obviously. My problem is apparently solvable by https://lkml.org/lkml/2010/12/6/464 as outlined by Konrad Rzeszutek Wilk.
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