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From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 106188] Can't successfully set pstates in pp_od_clk_voltage
Date: Tue, 08 May 2018 22:18:25 +0000	[thread overview]
Message-ID: <bug-106188-502-Z84pRtavMt@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-106188-502@http.bugs.freedesktop.org/>


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https://bugs.freedesktop.org/show_bug.cgi?id=106188

--- Comment #6 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to tempel.julian from comment #4)
> However, I am still not able to raise the maximum allowed power consumption
> of the GPU.
> It's clear that "/sys/class/drm/card0/device/hwmon/hwmon0/power1_cap" sets
> the actual power limit and thus I need to raise it. But the problem is:
> - I can't set it higher than power1_cap_max, only values below work.
> - power1_cap_max equals to power1_cap, so raising power consumption is
> actually completely forbidden
> - Despite of being root, I don't have write access to power1_cap_max, unlike
> to power1_cap

The max supported power cap is defined by the OEM in a vbios table and we limit
the max to that value.  power1_cap_min and max are RO so you can't change them.
 They define the range of available values.

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      parent reply	other threads:[~2018-05-08 22:18 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-23 12:49 [Bug 106188] Can't successfully set pstates in pp_od_clk_voltage bugzilla-daemon
2018-04-23 15:04 ` bugzilla-daemon
2018-04-23 16:12 ` bugzilla-daemon
2018-04-23 16:39 ` bugzilla-daemon
2018-04-27 18:45 ` bugzilla-daemon
2018-04-29 18:43 ` bugzilla-daemon
2018-05-08 22:18 ` bugzilla-daemon [this message]

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