Bug 30751

Summary: clutter based apps do not display properly on Radeon 3650 cards when using driver above 6.13.0
Product: xorg Reporter: Kevin DeKorte <kdekorte>
Component: Driver/RadeonAssignee: xf86-video-ati maintainers <xorg-driver-ati>
Status: RESOLVED NOTOURBUG QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Kevin DeKorte 2010-10-10 07:44:28 UTC 
OS: Fedora 13
Hardware: x86_64, Q6600 CPU, 8GB RAM
Video: Radeon 3650 Video card, in a dual screen setup, both displays are connected via DVI

01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon HD 3600 Series (prog-if 00 [VGA controller])
	Subsystem: ASUSTeK Computer Inc. Device 01da
	Flags: bus master, fast devsel, latency 0, IRQ 41
	Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Memory at fe9e0000 (64-bit, non-prefetchable) [size=64K]
	I/O ports at d000 [size=256]
	[virtual] Expansion ROM at fe9c0000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: radeon
	Kernel modules: radeon




I was testing clutter based apps on my machine using the r600g driver. I had installed kernel-2.6.36-0.35.rc7.git0.fc13.x86_64, libdrm-2.4.22-1.fc13.x86_64, mesa from git, and xf86-video-ati from git. All my 3D based apps worked except those that were clutter based, no clutter actors would draw on the screen. I rolled back to the Fedora 13 drivers and found that the clutter apps worked. I upgraded mesa back to git and found that clutter apps still worked, I then upgraded the radeon driver and found that it did not work. I rebuilt xorg-x11-drv-ati-6.13.1-0.4.20100705git37b348059.fc14.src.rpm for Fedora 13 and found that it failed.

I then did a git bisect in xf86-video-ati between 

ad999e633ff41d27eed9d2c6535e163a7181b0bd		6.13.1

and 

fb7911912e60b2cdbc2152b96847775b767ca3ef		6.13.0

when I completed the bisect it told me this.

30591320ec46e491ba20904cc64f3405b51c6505 is the first bad commit
commit 30591320ec46e491ba20904cc64f3405b51c6505
Author: Jerome Glisse <jglisse@redhat.com>
Date:   Fri May 7 17:35:09 2010 +0200

    kms: add support for the MSC swap & sync API
    
    This patch is mostly a port over of Intel ddx code for
    MSC support. It needs a radeon KMS module with version
    2.4 which has the query for hw crtc id.
    
    Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
    Signed-off-by: Jerome Glisse <jglisse@redhat.com>

:040000 040000 8f59eb7c18b2137eb88e3305db5a776fab25bdad ed1fb660478c944ebf849c5b0b4686f4bafd5e06 M	src
Comment 1 Kevin DeKorte 2010-10-10 07:46:04 UTC 
When running the driver that shows the problem, apps like gnome-shell do not display anything on the desktop. So this could be a blocker for installations using gnome-shell as the default.
Comment 2 Christopher James Halse Rogers 2010-10-11 00:00:22 UTC 
You'll be hitting this clutter bug: http://bugzilla.clutter-project.org/show_bug.cgi?id=2228

When GLX_INTEL_swap_event is available clutter uses the events to drive the main clock, but doesn't actually select for them.  Mesa prior to 7.9 had a bug where it would send events out to all clients, even if they hadn't selected for those events, so this clutter bug was only exposed recently.

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