Note: This is a public test instance of Red Hat Bugzilla. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback at bugzilla.redhat.com.

Bug 485823

Summary: intel kms breaks Xv
Product: [Fedora] Fedora Reporter: Bill Nottingham <notting>
Component: xorg-x11-drv-i810Assignee: Kristian Høgsberg <krh>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: rawhideCC: krh, mcepl, michael.monreal, rvokal, wwoods, xgl-maint
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-02-27 20:32:16 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:
Bug Depends On:    
Bug Blocks: 487202    
Attachments:
Description Flags
X log none

Description Bill Nottingham 2009-02-16 21:13:35 UTC 
Description of problem:

After loading the intel KMS support with 'modprobe i915 modeset=1', Xv no longer works.

[notting@nostromo: ~]$ xvinfo 
X-Video Extension version 2.2
screen #0
 no adaptors present

The relevant portion of the log appears to be:

...
(II) intel(0): [DRI2] Setup complete
(**) intel(0): Kernel mode setting active, disabling FBC.
(**) intel(0): Framebuffer compression disabled
(**) intel(0): Tiling enabled
(==) intel(0): VideoRam: -1 KB
(II) intel(0): Attempting memory allocation with tiled buffers.
(II) intel(0): Tiled allocation successful.
(WW) intel(0): Disabling Xv because the overlay register buffer allocation failed.
...

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)

Version-Release number of selected component (if applicable):

xorg-x11-drv-i810-2.6.0-5.fc11.x86_64
xorg-x11-server-Xorg-1.5.99.902-10.fc11.x86_64
kernel-2.6.29-0.119.rc5.fc11.x86_64

How reproducible:

Well, only booted once so far, but there's no reason to think it isn't repeatable.

Steps to Reproduce:
1. Load modesetting driver
2. Start X
3. Attempt to use Xv
  
Actual results:

Fails.

Expected results:

Works.
Comment 1 Matěj Cepl 2009-02-16 23:07:22 UTC 
I still believe that /var/log/Xorg.0.log would be useful.
Comment 2 Kristian Høgsberg 2009-02-17 14:23:32 UTC 
(In reply to comment #1)
> I still believe that /var/log/Xorg.0.log would be useful.

No, it's ok, I'll take it from here - thanks.
Comment 3 Kristian Høgsberg 2009-02-17 14:24:48 UTC 
Remove needinfo.
Comment 4 Kristian Høgsberg 2009-02-18 23:08:33 UTC 
xorg-x11-drv-i810-2_6_0-6_fc11 should bring back the textured xv adaptor.
Comment 5 Bill Nottingham 2009-02-20 00:31:39 UTC 
Created attachment 332657 [details]
X log

xorg-x11-server-Xorg-1.5.99.903-3.fc11.x86_64
xorg-x11-drv-i810-2.6.0-6.fc11.x86_64
kernel-2.6.29-0.134.rc5.git2.fc11.x86_64

It still fails.

X-Video Extension version 2.2
screen #0
 no adaptors present
Comment 6 Michael Monreal 2009-02-20 15:30:30 UTC 
What is the "correct" way to enable KMS for Intel?

I tries "options i915 modeset=1" in one of the modprobe.d/ files but with that, X never really draws anything after boot and I cannot switch to a VT either...
Comment 7 Bill Nottingham 2009-02-20 15:37:40 UTC 
With kernel >= 0.122, it should be enabled by default. Otherwise, you have to load i915 with modeset=1 before starting X.
Comment 8 Bill Nottingham 2009-02-27 20:32:16 UTC 
With:

2.6.29-0.157.rc6.git2.fc11.x86_64
xorg-x11-drv-intel-2.6.0-9.fc11.x86_64

it works now again.