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
CC'ing tmb and anssi
CC: (none) => anssi.hannula, marja11, tmb
So nvidia driver is not handling suspending properly... I assume it gets back to normal if you reboot ?
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...
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"
Whiteboard: (none) => MGA5TOO
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 => RESOLVEDResolution: (none) => FIXED