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Bug 1268196

Summary:	remove glamor support from nouveau ddx
Product:	Red Hat Enterprise Linux 7	Reporter:	Ben Skeggs <bskeggs>
Component:	xorg-x11-drv-nouveau	Assignee:	Ben Skeggs <bskeggs>
Status:	CLOSED ERRATA	QA Contact:	Desktop QE <desktop-qa-list>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	7.2	CC:	lkolacek, lmiksik, tpelka
Target Milestone:	rc
Target Release:	7.2
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-11-19 04:27:57 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Ben Skeggs 2015-10-02 05:45:51 UTC

The codepaths necessary to support Glamor acceleration in xorg-x11-drv-nouveau, as required to support all NVIDIA GPUs beginning from GM10x, have bit-rotted and no longer function correctly.  The result is the X server crashing when attempting to log in from GDM.

Upstream Nouveau no longer supports Glamor acceleration, instead it causes the X server to fall back to the built-in "modesetting" driver, which provides identical functionality.

This bug is to backport those patches from upstream, in order to fix the crashes that occur with the current packages present in 7.2.

Comment 3 Tomas Pelka 2015-10-02 12:11:40 UTC

Can this fix affect also other chipsets than maxwell?

Comment 4 Ben Skeggs 2015-10-02 22:01:03 UTC

Older chipsets are using EXA by default (we have no EXA implementation for Maxwell, Glamor was deemed a better choice), which does not have the mentioned issues.

Comment 10 errata-xmlrpc 2015-11-19 04:27:57 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHEA-2015-2198.html