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Bug#949020: linux-image-5.5.0-rc5-amd64: Poweroff/suspend doesn't work in 5.5.0-rc5

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‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Sunday, 19 April 2020 15:56, Uwe Kleine-König <uwe@kleine-koenig.org> wrote:

> Hello Lennert,
> 

> On Sat, Apr 18, 2020 at 11:29:42PM +0000, Lennert Van Alboom wrote:
> 

> > \-------- Original Message --------
> > On 19 Apr 2020, 00:42, Uwe Kleine-König < uwe@kleine-koenig.org> wrote:
> > 

> > > @Lennert: I assume you can still reproduce the problem. Do you care to
> > > test with intel_iommu=off and report about the result? Just to make
> > > sure you and I see the same problems?
> > 

> > I'm afraid I can't test this anymore - due to serious i915 issues I've
> > been building and running my own kernel packages. Currently running
> > 5.7.0-rc1 (which is still just as broken as 5.4, 5.5 and 5.6... sigh).
> 

> So the newer kernels don't fix your problems? In my experience the i915
> guys are quite responsive and willing to help if you run a recent
> kernel.

They don't. I've reported a bug for it a good while back:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=949021

https://gitlab.freedesktop.org/xorg/driver/xf86-video-intel/issues/183
https://gitlab.freedesktop.org/mesa/mesa/-/issues/2352

Awfully quiet there. There seem to be multiple similar bugs around; so far the only response I got upstream was the bug being closed and moved to "mesa" (which I don't really get either). Debian bug didn't get any acknowledgement or comment.


> > . I haven't seen the poweroff/suspend problem in a good while.
> 

> Do you have INTEL_IOMMU and INTEL_IOMMU_DEFAULT_ON included in your
> custom kernel? (If only the former: Do you suffer from the reported
> problem when you add intel_iommu=on to the kernel command line?)

I started with the stock Debian 5.5-rc config, and just did make oldconfig from there on (don't like to stray too far from the official packages). So the option should be identical to the Debian kernels.

$ grep INTEL_IOMMU Build/kernel/linux-5.7-rc1/.config
CONFIG_INTEL_IOMMU=y
CONFIG_INTEL_IOMMU_SVM=y
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_INTEL_IOMMU_FLOPPY_WA=y
CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON=y


I don't reboot often, but I'll very likely run into the i915 hang above again soon, so I'll try the intel_iommu=on then.

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Bug#949020: linux-image-5.5.0-rc5-amd64: Poweroff/suspend doesn't work in 5.5.0-rc5 Lennert Van Alboom <lennert@vanalboom.org> - 2020-01-16 08:50 +0100
  Processed: Re: Bug#949020: linux-image-5.5.0-rc5-amd64:  Poweroff/suspend doesn't work in 5.5.0-rc5 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2020-04-17 11:30 +0200
  Bug#949020: linux-image-5.5.0-rc5-amd64: Poweroff/suspend doesn't work in 5.5.0-rc5 Uwe Kleine-König <uwe@kleine-koenig.org> - 2020-04-17 11:30 +0200
    Bug#949020: linux-image-5.5.0-rc5-amd64: Poweroff/suspend doesn't work in 5.5.0-rc5 Uwe Kleine-König <uwe@kleine-koenig.org> - 2020-04-18 13:30 +0200
      Bug#949020: linux-image-5.5.0-rc5-amd64: Poweroff/suspend doesn't work in 5.5.0-rc5 Uwe Kleine-König <uwe@kleine-koenig.org> - 2020-04-18 15:30 +0200
        Bug#949020: linux-image-5.5.0-rc5-amd64: Poweroff/suspend doesn't work in 5.5.0-rc5 Uwe Kleine-König <uwe@kleine-koenig.org> - 2020-04-19 00:50 +0200
          Bug#949020: linux-image-5.5.0-rc5-amd64: Poweroff/suspend doesn't work in 5.5.0-rc5 Lennert Van Alboom <lennert@vanalboom.org> - 2020-04-19 01:40 +0200
            Bug#949020: linux-image-5.5.0-rc5-amd64: Poweroff/suspend doesn't work in 5.5.0-rc5 Uwe Kleine-König <uwe@kleine-koenig.org> - 2020-04-19 16:00 +0200
              Bug#949020: linux-image-5.5.0-rc5-amd64: Poweroff/suspend doesn't work in 5.5.0-rc5 Lennert Van Alboom <lennert@vanalboom.org> - 2020-04-19 17:20 +0200
                Bug#949020: linux-image-5.5.0-rc5-amd64: Poweroff/suspend doesn't work in 5.5.0-rc5 Lennert Van Alboom <lennert@vanalboom.org> - 2020-04-21 15:10 +0200
                Bug#949020: linux-image-5.5.0-rc5-amd64: Poweroff/suspend doesn't work in 5.5.0-rc5 Uwe Kleine-König <uwe@kleine-koenig.org> - 2020-05-11 22:30 +0200
  Processed: Re: Bug#949020: linux-image-5.5.0-rc5-amd64:  Poweroff/suspend doesn't work in 5.5.0-rc5 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2020-05-11 22:30 +0200
  Bug#949020: linux-image-5.6.0-2-amd64: Lenovo poweroff/suspend failure Bjørn Mork <bjorn@mork.no> - 2020-06-25 14:30 +0200

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