From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 99881] Lockup/Freezes on Laptop with switchable graphics
Date: Tue, 21 Feb 2017 20:28:27 +0000 [thread overview]
Message-ID: <bug-99881-502-rGl9YrqwQh@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-99881-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=99881
--- Comment #14 from Matthew Fox <matthew@tech3.me> ---
Hi,
It's rare that the PC doesn't lock up with runpm enabled so I've only been able
to test this a couple of times.
In the first try, the PC had stabilized (stopped freezing) after a while. I
then ran xrandr. Immediately after I cat /sys/kernel/debug/vgaswitcheroo/switch
and the discrete gpu had powered up. dmesg showed 1 block of gpu initialization
lines. A few seconds later vgaswitcheroo/switch showed the discrete gpu as
being off. dmesg also showed 2 or 3 blocks of the gpu initialization. It looked
like the gpu was being enabled and disabled repeatedly. The computer then
locked up a few seconds later. I don't have any logs for this session.
In the second try, the PC had stabilized. I ran xrandr and vgaswitcheroo/switch
had changed from 'DynOff' to 'DynPwr' for the discrete gpu. dmesg showed 1
block of the gpu initialization. The computer locked up a few seconds later.
The logs I have were captured straight after xrandr had run so the 'dmesg
after' log only shows one of the gpu initialization blocks but I suspect the
gpu was being enabled and disabled repeatedly before the PC locked up. I wasn't
able to run dmesg again before the lockup to confirm.
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next prev parent reply other threads:[~2017-02-21 20:28 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-21 0:06 [Bug 99881] Lockup/Freezes on Laptop with switchable graphics bugzilla-daemon
2017-02-21 0:10 ` bugzilla-daemon
2017-02-21 1:18 ` bugzilla-daemon
2017-02-21 1:21 ` bugzilla-daemon
2017-02-21 1:52 ` bugzilla-daemon
2017-02-21 2:07 ` bugzilla-daemon
2017-02-21 2:31 ` bugzilla-daemon
2017-02-21 2:55 ` bugzilla-daemon
2017-02-21 3:08 ` bugzilla-daemon
2017-02-21 3:11 ` bugzilla-daemon
2017-02-21 4:09 ` bugzilla-daemon
2017-02-21 4:11 ` bugzilla-daemon
2017-02-21 4:15 ` bugzilla-daemon
2017-02-21 4:16 ` bugzilla-daemon
2017-02-21 4:46 ` bugzilla-daemon
2017-02-21 6:20 ` bugzilla-daemon
2017-02-21 20:28 ` bugzilla-daemon [this message]
2017-02-21 20:29 ` bugzilla-daemon
2017-02-21 20:30 ` bugzilla-daemon
2017-02-21 20:32 ` bugzilla-daemon
2017-02-21 20:33 ` bugzilla-daemon
2017-02-21 20:34 ` bugzilla-daemon
2017-02-21 20:36 ` bugzilla-daemon
2017-02-21 20:36 ` bugzilla-daemon
2017-02-22 9:25 ` bugzilla-daemon
2017-02-22 16:29 ` bugzilla-daemon
2017-02-23 0:58 ` bugzilla-daemon
2017-02-23 3:29 ` bugzilla-daemon
2017-02-23 3:30 ` bugzilla-daemon
2017-02-23 3:34 ` bugzilla-daemon
2017-02-23 3:36 ` bugzilla-daemon
2017-02-23 3:38 ` bugzilla-daemon
2017-02-23 4:03 ` bugzilla-daemon
2017-02-23 8:24 ` bugzilla-daemon
2017-02-23 13:53 ` bugzilla-daemon
2017-02-23 20:51 ` bugzilla-daemon
2019-11-19 9:25 ` bugzilla-daemon
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