Bug 159343

Summary:	default fglrx option (of sax2) render fglrx unusable for Xgl
Product:	[openSUSE] SUSE Linux 10.1	Reporter:	Christoph Thiel <cthiel>
Component:	SaX2	Assignee:	Marcus Schaefer <ms>
Status:	RESOLVED FIXED	QA Contact:	E-mail List <qa-bugs>
Severity:	Normal
Priority:	P2 - High	CC:	ms, sndirsch
Version:	Beta 8
Target Milestone:	---
Hardware:	Other
OS:	Other
Whiteboard:
Found By:	Other	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Christoph Thiel 2006-03-18 15:37:36 UTC

After commeting out all fglrx option in xorg.conf Xgl starts working on my ATI Technologies Inc M10 NT [FireGL Mobility T2].

Comment 1 Stefan Dirsch 2006-03-18 15:42:59 UTC

Device->[X]->Raw->11->Option = "#NoDDC"
Device->[X]->Raw->12->Option = "UseInternalAGPGART" "no"
Device->[X]->Raw->13->Option = "no_accel" "no"
Device->[X]->Raw->14->Option = "no_dri" "no"
Device->[X]->Raw->15->Option = "mtrr" "off"
Device->[X]->Raw->16->Option = "ScreenOverlap" "0"
Device->[X]->Raw->17->Option = "GammaCorrectionI" "0x00000000"
Device->[X]->Raw->18->Option = "GammaCorrectionII" "0x00000000"
Device->[X]->Raw->19->Option = "Capabilities" "0x00000000"
Device->[X]->Raw->20->Option = "CapabilitiesEx" "0x00000000"
Device->[X]->Raw->21->Option = "VideoOverlay" "on"
Device->[X]->Raw->22->Option = "OpenGLOverlay" "off"
Device->[X]->Raw->23->Option = "CenterMode" "off"
Device->[X]->Raw->24->Option = "PseudoColorVisuals" "off"
Device->[X]->Raw->25->Option = "Stereo" "off"
Device->[X]->Raw->26->Option = "StereoSyncEnable" "1"
Device->[X]->Raw->27->Option = "FSAAEnable" "no"
Device->[X]->Raw->28->Option = "FSAAScale" "1"
Device->[X]->Raw->29->Option = "FSAADisableGamma" "no"
Device->[X]->Raw->30->Option = "FSAACustomizeMSPos" "no"
Device->[X]->Raw->31->Option = "FSAAMSPosX0" "0.000000"
Device->[X]->Raw->32->Option = "FSAAMSPosY0" "0.000000"
Device->[X]->Raw->33->Option = "FSAAMSPosX1" "0.000000"
Device->[X]->Raw->34->Option = "FSAAMSPosY1" "0.000000"
Device->[X]->Raw->35->Option = "FSAAMSPosX2" "0.000000"
Device->[X]->Raw->36->Option = "FSAAMSPosY2" "0.000000"
Device->[X]->Raw->37->Option = "FSAAMSPosX3" "0.000000"
Device->[X]->Raw->38->Option = "FSAAMSPosY3" "0.000000"
Device->[X]->Raw->39->Option = "FSAAMSPosX4" "0.000000"
Device->[X]->Raw->40->Option = "FSAAMSPosY4" "0.000000"
Device->[X]->Raw->41->Option = "FSAAMSPosX5" "0.000000"
Device->[X]->Raw->42->Option = "FSAAMSPosY5" "0.000000"
Device->[X]->Raw->43->Option = "UseFastTLS" "0"
Device->[X]->Raw->44->Option = "BlockSignalsOnLock" "on"
Device->[X]->Raw->45->Option = "ForceGenericCPU" "no"
Device->[X]->Raw->46->Option = "EnablePrivateBackZ" "yes"

Christoph, could you check which has been responsible?

Comment 2 Christoph Thiel 2006-03-18 15:59:56 UTC

Actually I didn't really want to try all the N x N different variants -- so, do you have one (or two) option(s) that you'd suspect to be the bad one to start with? ;)

Comment 3 Stefan Dirsch 2006-03-18 19:20:02 UTC

I don't think you need to try all the N x N different variant. Simply remove/add one by one. I personally don't think the FSAAMS* options are responsible. These look like defaults anyway.

BTW, what does mean "did not work before"? What was the problem?

Comment 5 Christoph Thiel 2006-03-20 11:43:44 UTC

Ok, "EnablePrivateBackZ" "yes" is to blame.

(In reply to comment #3)
> BTW, what does mean "did not work before"? What was the problem?

Xgl was hanging in some driver call, which rendered it unusable :( I once debugged it with mhopf, but as we don't have the driver sources, we had no chance to find out what's going wrong.

Comment 6 Stefan Dirsch 2006-03-20 12:00:41 UTC

Hmm. So should we break Xgl or Xinerama?

Comment 7 Christoph Thiel 2006-03-20 12:03:53 UTC

Is this option really needed for Xinerama? I'll give it a try as soon as I'm back in the office tomorrow.

Comment 8 Stefan Dirsch 2006-03-20 12:05:17 UTC

It seems so. See Bug #135708, comment #21.

Comment 9 Matthias Hopf 2006-03-21 11:51:55 UTC

Now my results: 8.23.7 on i386 SL10.1 Beta8:

1st) fglrx *does* work without EnablePrivateBackZ.
     Even OpenGL apps on big desktops (MergedFB) on a Radeon 9700 Pro.
     Xgl seems to work fine as well.
     Christoph, I assume you mean mergedFB when you talk about Xinerama?
2nd) Xgl freezes with EnablePrivateBackZ. No other change.

AFAIK EnablePrivateBackZ was mainly introduced in order to gain some % more speed. I would say we set this option to 'No' for now, as the issues in bug #135708 seem to be fixed in 8.23.7.

Comment 10 Stefan Dirsch 2006-03-21 11:54:39 UTC

Thanks for investigation! Marcus, could you please remove the EnablePrivateBackZ option from FireGL profile again? Thanks.

Comment 11 Christoph Thiel 2006-03-21 11:55:58 UTC

Matthias, ad 1) yes
             2) exactly

=> remove EnablePrivateBackZ ;)

Comment 12 Marcus Schaefer 2006-03-21 15:03:26 UTC

option has been removed