From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 91880] Radeonsi on Grenada cards (r9 390) exceptionally unstable and poorly performing
Date: Fri, 09 Dec 2016 04:36:54 +0000 [thread overview]
Message-ID: <bug-91880-502-iDfszMd119@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-91880-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=91880
--- Comment #137 from Thomas DEBESSE <dev@illwieckz.net> ---
(In reply to Chris Waters from comment #136)
> Can this be done without rebooting? I'd like to test this on a liveCD
> since, as I've said, I'm currently stuck on Windows. The idea of needing to
> install a distro just to test this is a bit unappealing to me.
It's not only it can, it must be done without rebooting, stuff in /sys are live
settings, even on installed distro, you must expect to lose them on reboot,
it's a fake file system, writing there does not write something on your hard
disk, reading and writing there is just reading and writing bits in memory with
a file system view for convenience.
Beware, there is a little mistake in Jan Ziak's directives (missing a leading
slash before “sys”), this is ok:
$ echo manual > /sys/class/drm/card1/device/power_dpm_force_performance_level
$ echo 1234567 > /sys/class/drm/card1/device/pp_dpm_sclk
Do that *and do not reboot* or you'll lose the changes so you will never test
them. The way to test them is to apply these changes at runtime and doing stuff
without rebooting. If you reboot you'll lose the change.
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Thread overview: 213+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-04 15:00 [Bug 91880] Radeonsi on Grenada cards (r9 390) exceptionally unstable and poorly performing bugzilla-daemon
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