Bug 583025

Summary: "nomodeset" makes X use the Vesa driver instead of Nouveau.
Product: [Fedora] Fedora Reporter: Björn Persson <bjorn>
Component: xorg-x11-drv-nouveauAssignee: Ben Skeggs <bskeggs>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 13CC: airlied, ajax, bskeggs
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-04-19 06:43:03 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
X server log
none
/var/log/dmesg
none
/var/log/messages none

Description Björn Persson 2010-04-16 13:30:13 UTC 
Created attachment 407101 [details]
X server log

Description of problem:
The kernel argument "nomodeset" makes X use the Vesa driver for a Nvidia chip that otherwise works with Nouveau.

Version-Release number of selected component (if applicable):
xorg-x11-drv-nouveau-0.0.16-3.20100305git6b8b157.fc13.x86_64
xorg-x11-drv-vesa-2.2.1-2.fc13.x86_64
xorg-x11-server-Xorg-1.8.0-4.fc13.x86_64
kernel-2.6.33.2-41.fc13.x86_64

How reproducible:
always

Steps to Reproduce:
Boot with default kernel arguments plus "nomodeset".

Actual results:
The resolution is 1280×1024, and if I read the log right X uses the Vesa driver.

Expected results:
If Nouveau is intended to work with "nomodeset", then the resolution should be 1920×1200 and the driver should be Nouveau.

Additional info:
Smolt profile:
http://www.smolts.org/client/show/pub_88cd7ab2-c7c0-46b9-9a91-e7687128a21c
There are files in /etc/xorg.conf.d but no xorg.conf.
Comment 1 Björn Persson 2010-04-16 13:31:29 UTC 
Created attachment 407102 [details]
/var/log/dmesg
Comment 2 Björn Persson 2010-04-16 13:32:28 UTC 
Created attachment 407103 [details]
/var/log/messages
Comment 3 Ben Skeggs 2010-04-19 06:43:03 UTC 
This is not a bug, you're seeing the correct behaviour.  Nouveau no longer supports userspace modesetting as of F13 (and upstream).