Bug 15430

Summary:	nvidia suspend issue: "It seems you are using the nvidia driver without triple buffering"
Product:	Mageia	Reporter:	Morgan Leijström <fri>
Component:	RPM Packages	Assignee:	Mageia Bug Squad <bugsquad>
Status:	RESOLVED FIXED	QA Contact:
Severity:	major
Priority:	Normal	CC:	anssi.hannula, marja11, tmb
Version:	Cauldron
Target Milestone:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:	MGA5TOO
Source RPM:		CVE:
Status comment:

Description Morgan Leijström 2015-03-05 11:38:21 CET

Since a day or two his cauldron laptop with Nvidia driver sometimes do not properly wake up from suspend, sometimes it takes a minute for a save as dialogue to appear (logout/login fixes that for a while)  ctrl-altFx switching to a terminal also sometimes take a minut to show up.
I have no idea what to shoot at, but in .xsession.log i spotted the below and some symptoms in that kde bug the log mentions seem to fit:

 kwin(5410) KWin::GlxBackend::present: 
 It seems you are using the nvidia driver without triple buffering
 You must export __GL_YIELD="USLEEP" to prevent large CPU overhead on synced swaps
 Preferably, enable the TripleBuffer Option in the xorg.conf Device
 For this reason, the tearing prevention has been disabled.
 See https://bugs.kde.org/show_bug.cgi?id=322060

Comment 1 Marja Van Waes 2015-04-06 19:12:05 CEST

CC'ing tmb and anssi

CC: (none) => anssi.hannula, marja11, tmb

Comment 2 Thomas Backlund 2015-04-06 20:41:34 CEST

So nvidia driver is not handling suspending properly...

I assume it gets back to normal if you reboot ?

Comment 3 Morgan Leijström 2015-04-06 22:03:38 CEST

Yes it did not fail after reboot - until it have slept next time

Update: maybe it currently do not cause problems at least on that laptop
- I do not remember a resume fail for a couple of weeks now.

But that *message* is still there in xsession-errors 

Oh and now i checked that i have that message also on my workstation.
Workstation have had some delays/stalls and X session crashing lately but so far i have blamed later two versions firefox (and my use of 200+ tabs...) while running BOINC with full CPU and GPU use...

Samuel Verschelde 2015-05-21 12:44:35 CEST

Summary: "It seems you are using the nvidia driver without triple buffering" => nvidia suspend issue: "It seems you are using the nvidia driver without triple buffering"

Samuel Verschelde 2015-06-06 16:21:12 CEST

Whiteboard: (none) => MGA5TOO

Comment 4 Morgan Leijström 2016-06-07 18:19:45 CEST

Closing as Fixed;

On current cauldron that laptop seem to suspend-resmume correctly
and no mention of triple buffering in ~/xsession-errors

A collegue have a very similar machine with mga5 and it works (and have been working more than an half year.

Status: NEW => RESOLVED
Resolution: (none) => FIXED