[Bug 73338] Fan speed in idle at 40% with radeonsi and at 18% with catalyst

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73338

--- Comment #89 from Pär Forsling <electropura at forsling.net> ---
(In reply to Oliver Winker from comment #88)
> (In reply to r.andersen from comment #84)
> > ... and I should add
> > 
> > echo "50" > pwm1
> > 
> > also makes my computer hang.
> 
> Exactly the same on my HD7850 (see [1]) on kernel v4.0. 
> 
> Are there maybe hints how to debug this ?
<snip> 


Sorry, I have no debug hints. For what it's worth, I have a nearly identical
card and the same kernel version (see below), and both manual and automatic
modes works flawlessly.

$ uname -a
Linux wallace 4.0.0-1-pelle #1 SMP PREEMPT Thu Apr 23 20:32:42 CEST 2015 x86_64
GNU/Linux

$ sudo lspci -v
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Pitcairn PRO [Radeon HD 7850] (prog-if 00 [VGA controller])
    Subsystem: Gigabyte Technology Co., Ltd Device 2553
    Flags: bus master, fast devsel, latency 0, IRQ 33
    Memory at d0000000 (64-bit, prefetchable) [size=256M]
    Memory at fe780000 (64-bit, non-prefetchable) [size=256K]
    I/O ports at b000 [size=256]
    Expansion ROM at fe7c0000 [disabled] [size=128K]
    Capabilities: [48] Vendor Specific Information: Len=08 <?>
    Capabilities: [50] Power Management version 3
    Capabilities: [58] Express Legacy Endpoint, MSI 00
    Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
    Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
    Capabilities: [150] Advanced Error Reporting
    Capabilities: [270] #19
    Capabilities: [2b0] Address Translation Service (ATS)
    Capabilities: [2c0] #13
    Capabilities: [2d0] #1b
    Kernel driver in use: radeon
    Kernel modules: radeon

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