[Bug 112491] New: Radeon: HD 7400G / A4-4355M System overheats with 3D graphics active. - bugzilla-daemon

From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 112491] New: Radeon: HD 7400G / A4-4355M System overheats with 3D graphics active.
Date: Mon, 15 Feb 2016 15:56:11 +0000	[thread overview]
Message-ID: <bug-112491-2300@https.bugzilla.kernel.org/> (raw)

https://bugzilla.kernel.org/show_bug.cgi?id=112491

            Bug ID: 112491
           Summary: Radeon: HD 7400G / A4-4355M System overheats with 3D
                    graphics active.
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.2
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: djtm@gmx.net
        Regression: No

I've already tried several radeon boot flags, such as DPM on and off, BAPM on
and off, without success. The problem does not occur with the fglrx or Windows
driver. I'm using glamor acceleration. I'm using an external 4k display in
FullHD resolution, the internal laptop display is disabled.

I've read similar bugs here:
https://bugzilla.kernel.org/show_bug.cgi?id=63101
https://bugzilla.kernel.org/show_bug.cgi?id=68571
https://bugs.freedesktop.org/show_bug.cgi?id=73053

But I'm not sure which of the tips are still relevant in the current tree?

The results are:
Playing a simple car racing game, I can do:
dpm=0 -> 2 laps, then the system shuts down due to thermal zone overheating
(regular shutdown, not suddenly).
dpm=-1 -> ~1 lap, the system suddenly turns off hard without warning.
bapm=1 -> ~1 lap, hard turn off

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