[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71930

Mike Lothian  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #25 from Mike Lothian  ---
Fixed in https://bugzilla.kernel.org/show_bug.cgi?id=61891

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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https://bugs.freedesktop.org/show_bug.cgi?id=71930

--- Comment #24 from Hohahiu  ---
Created attachment 90127
  --> https://bugs.freedesktop.org/attachment.cgi?id=90127=edit
Xorg.0.log

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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https://bugs.freedesktop.org/show_bug.cgi?id=71930

--- Comment #23 from Hohahiu  ---
Created attachment 90126
  --> https://bugs.freedesktop.org/attachment.cgi?id=90126=edit
dmesg with radeon.runpm=1

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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https://bugs.freedesktop.org/show_bug.cgi?id=71930

--- Comment #22 from Hohahiu  ---
I also experience issues with radeon.runpm=1 on 3.13-rc2.
My system is intel hd4000 + Mobile radeon 7750M. However lspci shows the
following:
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor
Graphics Controller (rev 09)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Chelsea LP [Radeon HD 7730M]

Below are attached dmesg with radeon.runpm=1 and Xorg.0.log.

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71930

--- Comment #21 from Mike Lothian  ---
I'm only seeing the intel provider out out xrandr --listproviders and the
system keeps stuttering when the card is either powered up (looks like when
it's printing the dpm tables)

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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https://bugs.freedesktop.org/show_bug.cgi?id=71930

--- Comment #20 from Mike Lothian  ---
Created attachment 90021
  --> https://bugs.freedesktop.org/attachment.cgi?id=90021=edit
Dmesg from 3.13-rc2

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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--- Comment #19 from Mike Lothian  ---
This is currently what's in switcheroo in 3.13-rc2 with runpm=1

0:IGD:+:Pwr::00:02.0
1:DIS: :DynPwr::01:00.0

Which seems to have a reversed order - the system keeps powering up the radeon
card and powering down

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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https://bugs.freedesktop.org/show_bug.cgi?id=71930

--- Comment #18 from Mike Lothian  ---
With runpm=1 on adg5f's drm-fixes-3.12-radeon-poweroff which is based on
3.11.0-rc7 I get the following in switcheroo

0:DIS: :DynOff::01:00.0
1:IGD:+:Pwr::00:02.0

It also lists providers and DRI_PRIME works great powering the card as and when
I fire something up and shows this in switcheroo

0:DIS: :DynPwr::01:00.0
1:IGD:+:Pwr::00:02.0

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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--- Comment #17 from Mike Lothian  ---
Created attachment 90020
  --> https://bugs.freedesktop.org/attachment.cgi?id=90020=edit
Dmesg from drm-fixes-3.12-radeon-poweroff

This is the dmesg from adg5f's drm-fixes-3.12-radeon-poweroff branch when I do
a switcheroo OFF then ON with runpm=0

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--- Comment #16 from Mike Lothian  ---
Switching back to airlied's drm-radeon-poweroff branch which is based on
3.11-rc3 (which doesn't show my radeon card as a provider) has the following in
switcheroo

0:DIS: :DynOff::01:00.0
1:IGD:+:Pwr::00:02.0

and this is what is shows with runpm=0 but with this set I'm able to see my
radeon card as a provider

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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--- Comment #15 from sotiris papadimitriou  ---
$ sudo cat /sys/kernel/debug/vgaswitcheroo/switch
0:IGD:+:DynPwr::01:05.0
1:DIS: :DynPwr::02:00.0
The DynPwr should exist on both cards or only the dGPU?
Does runpm extinguished and the two cards and the computer freezes?

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--- Comment #14 from sotiris papadimitriou  ---
(In reply to comment #13)
> Same problem.
> My graphics cards:
> lspci | grep VGA
> 01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI
> RS880M [Mobility Radeon HD 4225/4250]
> 02:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Park
> [Mobility Radeon HD 5430/5450/5470]
> If radeon.runpm=0 all o.k.
> If manually turning off the dGPU using switcheroo then freeze
>  
> I'm use Ubuntu 14.04 with kernel 3.13.rc1

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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--- Comment #13 from sotiris papadimitriou  ---
Same problem.
My graphics cards:
lspci | grep VGA
01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RS880M
[Mobility Radeon HD 4225/4250]
02:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Park
[Mobility Radeon HD 5430/5450/5470]
If radeon.runpm=0 all o.k.
If manually turning off the dGPU using switcheroo then freeze

Use Ubuntu 14.04 with 13.rc1

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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--- Comment #12 from Mike Lothian  ---
I think that was when I was playing around with the dynamic shutdown patches in
one of Dave's git branches - which explains why I haven't really noticed this
until now - I rarely used switcheroo 

This is also possibly related to
https://bugzilla.kernel.org/show_bug.cgi?id=61891

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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--- Comment #11 from Mike Lothian  ---
I've just tried but it doesn't revert cleanly - not even on 3.11

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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--- Comment #10 from Alex Deucher  ---
(In reply to comment #9)
> I bisected back to [bbd34fcdd1b201e996235731a7c98fd5197d9e51] ACPI / hotplug
> / PCI: Register all devices under the given bridge
> 
> Which was during the 3.11 cycle I believe - I guess there's a chance I
> picked up on a previous bug I'll do some more testing

Does reverting that commit fix the issues?

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--- Comment #9 from Mike Lothian  ---
I bisected back to [bbd34fcdd1b201e996235731a7c98fd5197d9e51] ACPI / hotplug /
PCI: Register all devices under the given bridge

Which was during the 3.11 cycle I believe - I guess there's a chance I picked
up on a previous bug I'll do some more testing

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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--- Comment #8 from Alex Deucher  ---
(In reply to comment #4)
> It locks up the machine

Can you bisect to see what broke vgaswitcheroo on your system?  Both runpm and
switcheroo use the same acpi method, so fixing one with likely fix both.

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--- Comment #7 from Mike Lothian  ---
Created attachment 89800
  --> https://bugs.freedesktop.org/attachment.cgi?id=89800=edit
Dmesg dynpm=1

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[Bug 71930] Kernel Bug and X fails to start when using radeon.runpm=1

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--- Comment #6 from Mike Lothian  ---
X is now starting with runpm=1 but I get a kworker eating lots of cpu and a
slight freeze / stutter every few seconds

Looks like the card is initialised every few seconds in the dmesg

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--- Comment #5 from Mike Lothian  ---
Created attachment 89797
  --> https://bugs.freedesktop.org/attachment.cgi?id=89797=edit
Dmesg of switcheroo

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--- Comment #4 from Mike Lothian  ---
It locks up the machine

Output from journalctl -f will be attached which was captured by sshing from
another machine

It froze up the laptop completely and the connection died

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--- Comment #3 from Alex Deucher  ---
Does manually turning off the dGPU using switcheroo still work with
radeon.runpm=0?  If not, can you bisect?  runpm and switcheroo use the same
apci mechanism to turn off the dGPU.

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--- Comment #2 from Mike Lothian  ---
I think the same issue has been reported upstream too

https://bugzilla.kernel.org/show_bug.cgi?id=65761

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Mike Lothian  changed:

   What|Removed |Added

 CC||mike at fireburn.co.uk

--- Comment #1 from Mike Lothian  ---
I should add I think this bug is also triggered during shutdown but systmed is
a little too quick for me to see

If required I can do a git bisect testing the shutdown rather than the boot
with runpm as I don't think the runpm code is at fault but only manifests the
issue

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