[Bug 29572] New: Radeon card reports wrong temperature when switched off

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=29572

           Summary: Radeon card reports wrong temperature when switched
                    off
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.38-rc5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri at kernel-bugs.osdl.org
        ReportedBy: mail at 3v1n0.net
                CC: mail at 3v1n0.net
        Regression: Yes


In previous versions of the kernel (I've tested the 2.6.37 version) when the I
switched off the radeon card using vga_switcheroo libsensors was correctly
reporting that the radeon temperature was 0° (or invalid).

This doesn't happen any more using the latest kernel, in fact (after the commit
20d391d72519527d2266a0166490118b40ff998d, I figure) when my radeon card has
been switched off (or after a suspend/resume cycle) sensors indicates:

radeon-pci-0100
Adapter: PCI adapter
temp1:      +2147355.6°C

This is obiouvsly impossible.

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