2014-07-23 23:33:19

by Ian Kumlien

[permalink] [raw]
Subject: [BUG?] 3.16-rc6 ... at drivers/gpu/drm/i915/intel_pm.c:5997 intel_display_power_put+0x12d/0x160()

Try four, now including CC lists for the intel driver...

---

Hi again,


Playing some more with the new kernel release i noticed this:
[ 9064.008821] WARNING: CPU: 3 PID: 22929 at drivers/gpu/drm/i915/intel_pm.c:5997 intel_display_power_put+0x12d/0x160()
[ 9064.008822] Modules linked in: uas bnep b43 mac80211 cfg80211 snd_hda_codec_hdmi btusb bluetooth 6lowpan_iphc rfkill snd_hda_codec_cirrus uvcvideo snd_hda_codec_generic videobuf2_vmalloc videobuf2_memops videobuf2_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer sdhci_pci snd sdhci soundcore mmc_core bcma
[ 9064.008839] CPU: 3 PID: 22929 Comm: kworker/3:2 Tainted: G W 3.16.0-rc6 #23
[ 9064.008840] Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B03.1211161133 11/16/2012
[ 9064.008843] Workqueue: events edp_panel_vdd_work
[ 9064.008844] 0000000000000009 ffff88015ba77d28 ffffffff8198ea2d 0000000000000000
[ 9064.008846] ffff88015ba77d60 ffffffff810cbac8 ffff8802610b002c 00000000000c7204
[ 9064.008848] 0000000000000001 ffff8802610b80f0 ffff8802610b0000 ffff88015ba77d70
[ 9064.008850] Call Trace:
[ 9064.008854] [<ffffffff8198ea2d>] dump_stack+0x4e/0x7a
[ 9064.008857] [<ffffffff810cbac8>] warn_slowpath_common+0x78/0xa0
[ 9064.008858] [<ffffffff810cbba5>] warn_slowpath_null+0x15/0x20
[ 9064.008860] [<ffffffff815bdb3d>] intel_display_power_put+0x12d/0x160
[ 9064.008862] [<ffffffff8161e084>] edp_panel_vdd_off_sync+0xf4/0x1c0
[ 9064.008863] [<ffffffff8161e17f>] edp_panel_vdd_work+0x2f/0x40
[ 9064.008866] [<ffffffff810e63be>] process_one_work+0x16e/0x480
[ 9064.008868] [<ffffffff810e6cbb>] worker_thread+0x11b/0x520
[ 9064.008870] [<ffffffff810e6ba0>] ? create_and_start_worker+0x50/0x50
[ 9064.008872] [<ffffffff810ecb24>] kthread+0xc4/0xe0
[ 9064.008874] [<ffffffff810eca60>] ? kthread_create_on_node+0x170/0x170
[ 9064.008877] [<ffffffff81997e6c>] ret_from_fork+0x7c/0xb0
[ 9064.008878] [<ffffffff810eca60>] ? kthread_create_on_node+0x170/0x170
[ 9064.008880] ---[ end trace 17f9738f20aec288 ]---
----


I had multiples of them in my dmesg, however, this seems to fix it:
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 8a1a4fb..4c3249d 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1252,6 +1252,7 @@ static void edp_panel_vdd_off_sync(struct intel_dp *intel_dp)
intel_dp->last_power_cycle = jiffies;

power_domain = intel_display_port_power_domain(intel_encoder);
+ intel_display_power_get(dev_priv, power_domain);
intel_display_power_put(dev_priv, power_domain);
}
}
@@ -1371,6 +1372,7 @@ void intel_edp_panel_off(struct intel_dp *intel_dp)

/* We got a reference when we enabled the VDD. */
power_domain = intel_display_port_power_domain(intel_encoder);
+ intel_display_power_get(dev_priv, power_domain);
intel_display_power_put(dev_priv, power_domain);
}
---


The question however is: Is this the correct approach? Should it be done
differently?
(This handles the "close and open lid" usecase, i don't know if there
are others, a grep indicated that there might be two more missing...)





Attachments:
intel_pm.patch (3.32 kB)

2014-07-25 09:28:43

by Imre Deak

[permalink] [raw]
Subject: Re: [Intel-gfx] [BUG?] 3.16-rc6 ... at drivers/gpu/drm/i915/intel_pm.c:5997 intel_display_power_put+0x12d/0x160()

On Thu, 2014-07-24 at 01:33 +0200, Ian Kumlien wrote:
> Try four, now including CC lists for the intel driver...

Could you give a try to the 2 patches at:
https://patchwork.kernel.org/patch/4437061/

If these don't fix the issue, could you send a full dmesg log with the
drm.debug=14 kernel option set?

Thanks,
Imre

>
> ---
>
> Hi again,
>
>
> Playing some more with the new kernel release i noticed this:
> [ 9064.008821] WARNING: CPU: 3 PID: 22929 at drivers/gpu/drm/i915/intel_pm.c:5997 intel_display_power_put+0x12d/0x160()
> [ 9064.008822] Modules linked in: uas bnep b43 mac80211 cfg80211 snd_hda_codec_hdmi btusb bluetooth 6lowpan_iphc rfkill snd_hda_codec_cirrus uvcvideo snd_hda_codec_generic videobuf2_vmalloc videobuf2_memops videobuf2_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer sdhci_pci snd sdhci soundcore mmc_core bcma
> [ 9064.008839] CPU: 3 PID: 22929 Comm: kworker/3:2 Tainted: G W 3.16.0-rc6 #23
> [ 9064.008840] Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B03.1211161133 11/16/2012
> [ 9064.008843] Workqueue: events edp_panel_vdd_work
> [ 9064.008844] 0000000000000009 ffff88015ba77d28 ffffffff8198ea2d 0000000000000000
> [ 9064.008846] ffff88015ba77d60 ffffffff810cbac8 ffff8802610b002c 00000000000c7204
> [ 9064.008848] 0000000000000001 ffff8802610b80f0 ffff8802610b0000 ffff88015ba77d70
> [ 9064.008850] Call Trace:
> [ 9064.008854] [<ffffffff8198ea2d>] dump_stack+0x4e/0x7a
> [ 9064.008857] [<ffffffff810cbac8>] warn_slowpath_common+0x78/0xa0
> [ 9064.008858] [<ffffffff810cbba5>] warn_slowpath_null+0x15/0x20
> [ 9064.008860] [<ffffffff815bdb3d>] intel_display_power_put+0x12d/0x160
> [ 9064.008862] [<ffffffff8161e084>] edp_panel_vdd_off_sync+0xf4/0x1c0
> [ 9064.008863] [<ffffffff8161e17f>] edp_panel_vdd_work+0x2f/0x40
> [ 9064.008866] [<ffffffff810e63be>] process_one_work+0x16e/0x480
> [ 9064.008868] [<ffffffff810e6cbb>] worker_thread+0x11b/0x520
> [ 9064.008870] [<ffffffff810e6ba0>] ? create_and_start_worker+0x50/0x50
> [ 9064.008872] [<ffffffff810ecb24>] kthread+0xc4/0xe0
> [ 9064.008874] [<ffffffff810eca60>] ? kthread_create_on_node+0x170/0x170
> [ 9064.008877] [<ffffffff81997e6c>] ret_from_fork+0x7c/0xb0
> [ 9064.008878] [<ffffffff810eca60>] ? kthread_create_on_node+0x170/0x170
> [ 9064.008880] ---[ end trace 17f9738f20aec288 ]---
> ----
>
>
> I had multiples of them in my dmesg, however, this seems to fix it:
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 8a1a4fb..4c3249d 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -1252,6 +1252,7 @@ static void edp_panel_vdd_off_sync(struct intel_dp *intel_dp)
> intel_dp->last_power_cycle = jiffies;
>
> power_domain = intel_display_port_power_domain(intel_encoder);
> + intel_display_power_get(dev_priv, power_domain);
> intel_display_power_put(dev_priv, power_domain);
> }
> }
> @@ -1371,6 +1372,7 @@ void intel_edp_panel_off(struct intel_dp *intel_dp)
>
> /* We got a reference when we enabled the VDD. */
> power_domain = intel_display_port_power_domain(intel_encoder);
> + intel_display_power_get(dev_priv, power_domain);
> intel_display_power_put(dev_priv, power_domain);
> }
> ---
>
>
> The question however is: Is this the correct approach? Should it be done
> differently?
> (This handles the "close and open lid" usecase, i don't know if there
> are others, a grep indicated that there might be two more missing...)
>
>
>
>
> _______________________________________________
> Intel-gfx mailing list
> [email protected]
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx


Attachments:
signature.asc (490.00 B)
This is a digitally signed message part

2014-07-25 10:10:12

by Ian Kumlien

[permalink] [raw]
Subject: Re: [Intel-gfx] [BUG?] 3.16-rc6 ... at drivers/gpu/drm/i915/intel_pm.c:5997 intel_display_power_put+0x12d/0x160()

On fre, 2014-07-25 at 12:28 +0300, Imre Deak wrote:
> On Thu, 2014-07-24 at 01:33 +0200, Ian Kumlien wrote:
> > Try four, now including CC lists for the intel driver...
>
> Could you give a try to the 2 patches at:
> https://patchwork.kernel.org/patch/4437061/
>
> If these don't fix the issue, could you send a full dmesg log with the
> drm.debug=14 kernel option set?

I will, but the tests will be a bit delayed (earliest tomorrow evening)

> Thanks,
> Imre
>
> >
> > ---
> >
> > Hi again,
> >
> >
> > Playing some more with the new kernel release i noticed this:
> > [ 9064.008821] WARNING: CPU: 3 PID: 22929 at drivers/gpu/drm/i915/intel_pm.c:5997 intel_display_power_put+0x12d/0x160()
> > [ 9064.008822] Modules linked in: uas bnep b43 mac80211 cfg80211 snd_hda_codec_hdmi btusb bluetooth 6lowpan_iphc rfkill snd_hda_codec_cirrus uvcvideo snd_hda_codec_generic videobuf2_vmalloc videobuf2_memops videobuf2_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer sdhci_pci snd sdhci soundcore mmc_core bcma
> > [ 9064.008839] CPU: 3 PID: 22929 Comm: kworker/3:2 Tainted: G W 3.16.0-rc6 #23
> > [ 9064.008840] Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B03.1211161133 11/16/2012
> > [ 9064.008843] Workqueue: events edp_panel_vdd_work
> > [ 9064.008844] 0000000000000009 ffff88015ba77d28 ffffffff8198ea2d 0000000000000000
> > [ 9064.008846] ffff88015ba77d60 ffffffff810cbac8 ffff8802610b002c 00000000000c7204
> > [ 9064.008848] 0000000000000001 ffff8802610b80f0 ffff8802610b0000 ffff88015ba77d70
> > [ 9064.008850] Call Trace:
> > [ 9064.008854] [<ffffffff8198ea2d>] dump_stack+0x4e/0x7a
> > [ 9064.008857] [<ffffffff810cbac8>] warn_slowpath_common+0x78/0xa0
> > [ 9064.008858] [<ffffffff810cbba5>] warn_slowpath_null+0x15/0x20
> > [ 9064.008860] [<ffffffff815bdb3d>] intel_display_power_put+0x12d/0x160
> > [ 9064.008862] [<ffffffff8161e084>] edp_panel_vdd_off_sync+0xf4/0x1c0
> > [ 9064.008863] [<ffffffff8161e17f>] edp_panel_vdd_work+0x2f/0x40
> > [ 9064.008866] [<ffffffff810e63be>] process_one_work+0x16e/0x480
> > [ 9064.008868] [<ffffffff810e6cbb>] worker_thread+0x11b/0x520
> > [ 9064.008870] [<ffffffff810e6ba0>] ? create_and_start_worker+0x50/0x50
> > [ 9064.008872] [<ffffffff810ecb24>] kthread+0xc4/0xe0
> > [ 9064.008874] [<ffffffff810eca60>] ? kthread_create_on_node+0x170/0x170
> > [ 9064.008877] [<ffffffff81997e6c>] ret_from_fork+0x7c/0xb0
> > [ 9064.008878] [<ffffffff810eca60>] ? kthread_create_on_node+0x170/0x170
> > [ 9064.008880] ---[ end trace 17f9738f20aec288 ]---
> > ----
> >
> >
> > I had multiples of them in my dmesg, however, this seems to fix it:
> > diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> > index 8a1a4fb..4c3249d 100644
> > --- a/drivers/gpu/drm/i915/intel_dp.c
> > +++ b/drivers/gpu/drm/i915/intel_dp.c
> > @@ -1252,6 +1252,7 @@ static void edp_panel_vdd_off_sync(struct intel_dp *intel_dp)
> > intel_dp->last_power_cycle = jiffies;
> >
> > power_domain = intel_display_port_power_domain(intel_encoder);
> > + intel_display_power_get(dev_priv, power_domain);
> > intel_display_power_put(dev_priv, power_domain);
> > }
> > }
> > @@ -1371,6 +1372,7 @@ void intel_edp_panel_off(struct intel_dp *intel_dp)
> >
> > /* We got a reference when we enabled the VDD. */
> > power_domain = intel_display_port_power_domain(intel_encoder);
> > + intel_display_power_get(dev_priv, power_domain);
> > intel_display_power_put(dev_priv, power_domain);
> > }
> > ---
> >
> >
> > The question however is: Is this the correct approach? Should it be done
> > differently?
> > (This handles the "close and open lid" usecase, i don't know if there
> > are others, a grep indicated that there might be two more missing...)
> >
> >
> >
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > [email protected]
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>

2014-07-30 20:53:19

by Ian Kumlien

[permalink] [raw]
Subject: Re: [Intel-gfx] [BUG?] 3.16-rc6 ... at drivers/gpu/drm/i915/intel_pm.c:5997 intel_display_power_put+0x12d/0x160()

Sorry for the delay, it's been damned hot - vacation is over and
overtime has been all the rage at work...

On fre, 2014-07-25 at 12:28 +0300, Imre Deak wrote:
> On Thu, 2014-07-24 at 01:33 +0200, Ian Kumlien wrote:
> > Try four, now including CC lists for the intel driver...
>
> Could you give a try to the 2 patches at:
> https://patchwork.kernel.org/patch/4437061/

Didn't quite get that it was two separate patches at first, but when i
did i also spotted a v2 of the patch set.

I applied:
https://patchwork.kernel.org/patch/4648961/
https://patchwork.kernel.org/patch/4648951/

On to 3.16-rc7 (there was some fuzz but it applied fine)

I didn't see any OOPS:es (didn't scroll around too much) but otoh the
screen never turned off? (it's one of those silly mac things, the apple
is still lit) and the machine doesn't "suspend/sleep" anymore.

AFAIR it does, after some coaxing, on the unpatched kernel (ie, not the
first time but the second time i turn down the lid, i tried three times
and play:ed with brightness as i assume you can see in the log)

> If these don't fix the issue, could you send a full dmesg log with the
> drm.debug=14 kernel option set?
>
> Thanks,
> Imre
>
> >
> > ---
> >
> > Hi again,
> >
> >
> > Playing some more with the new kernel release i noticed this:
> > [ 9064.008821] WARNING: CPU: 3 PID: 22929 at drivers/gpu/drm/i915/intel_pm.c:5997 intel_display_power_put+0x12d/0x160()
> > [ 9064.008822] Modules linked in: uas bnep b43 mac80211 cfg80211 snd_hda_codec_hdmi btusb bluetooth 6lowpan_iphc rfkill snd_hda_codec_cirrus uvcvideo snd_hda_codec_generic videobuf2_vmalloc videobuf2_memops videobuf2_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer sdhci_pci snd sdhci soundcore mmc_core bcma
> > [ 9064.008839] CPU: 3 PID: 22929 Comm: kworker/3:2 Tainted: G W 3.16.0-rc6 #23
> > [ 9064.008840] Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B03.1211161133 11/16/2012
> > [ 9064.008843] Workqueue: events edp_panel_vdd_work
> > [ 9064.008844] 0000000000000009 ffff88015ba77d28 ffffffff8198ea2d 0000000000000000
> > [ 9064.008846] ffff88015ba77d60 ffffffff810cbac8 ffff8802610b002c 00000000000c7204
> > [ 9064.008848] 0000000000000001 ffff8802610b80f0 ffff8802610b0000 ffff88015ba77d70
> > [ 9064.008850] Call Trace:
> > [ 9064.008854] [<ffffffff8198ea2d>] dump_stack+0x4e/0x7a
> > [ 9064.008857] [<ffffffff810cbac8>] warn_slowpath_common+0x78/0xa0
> > [ 9064.008858] [<ffffffff810cbba5>] warn_slowpath_null+0x15/0x20
> > [ 9064.008860] [<ffffffff815bdb3d>] intel_display_power_put+0x12d/0x160
> > [ 9064.008862] [<ffffffff8161e084>] edp_panel_vdd_off_sync+0xf4/0x1c0
> > [ 9064.008863] [<ffffffff8161e17f>] edp_panel_vdd_work+0x2f/0x40
> > [ 9064.008866] [<ffffffff810e63be>] process_one_work+0x16e/0x480
> > [ 9064.008868] [<ffffffff810e6cbb>] worker_thread+0x11b/0x520
> > [ 9064.008870] [<ffffffff810e6ba0>] ? create_and_start_worker+0x50/0x50
> > [ 9064.008872] [<ffffffff810ecb24>] kthread+0xc4/0xe0
> > [ 9064.008874] [<ffffffff810eca60>] ? kthread_create_on_node+0x170/0x170
> > [ 9064.008877] [<ffffffff81997e6c>] ret_from_fork+0x7c/0xb0
> > [ 9064.008878] [<ffffffff810eca60>] ? kthread_create_on_node+0x170/0x170
> > [ 9064.008880] ---[ end trace 17f9738f20aec288 ]---
> > ----
> >
> >
> > I had multiples of them in my dmesg, however, this seems to fix it:
> > diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> > index 8a1a4fb..4c3249d 100644
> > --- a/drivers/gpu/drm/i915/intel_dp.c
> > +++ b/drivers/gpu/drm/i915/intel_dp.c
> > @@ -1252,6 +1252,7 @@ static void edp_panel_vdd_off_sync(struct intel_dp *intel_dp)
> > intel_dp->last_power_cycle = jiffies;
> >
> > power_domain = intel_display_port_power_domain(intel_encoder);
> > + intel_display_power_get(dev_priv, power_domain);
> > intel_display_power_put(dev_priv, power_domain);
> > }
> > }
> > @@ -1371,6 +1372,7 @@ void intel_edp_panel_off(struct intel_dp *intel_dp)
> >
> > /* We got a reference when we enabled the VDD. */
> > power_domain = intel_display_port_power_domain(intel_encoder);
> > + intel_display_power_get(dev_priv, power_domain);
> > intel_display_power_put(dev_priv, power_domain);
> > }
> > ---
> >
> >
> > The question however is: Is this the correct approach? Should it be done
> > differently?
> > (This handles the "close and open lid" usecase, i don't know if there
> > are others, a grep indicated that there might be two more missing...)
> >
> >
> >
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > [email protected]
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>


Attachments:
dmesg-log.txt (223.75 kB)

2014-07-31 11:40:32

by Imre Deak

[permalink] [raw]
Subject: Re: [Intel-gfx] [BUG?] 3.16-rc6 ... at drivers/gpu/drm/i915/intel_pm.c:5997 intel_display_power_put+0x12d/0x160()

On Wed, 2014-07-30 at 22:52 +0200, Ian Kumlien wrote:
> Sorry for the delay, it's been damned hot - vacation is over and
> overtime has been all the rage at work...

No problem, thanks for the feedback.

> On fre, 2014-07-25 at 12:28 +0300, Imre Deak wrote:
> > On Thu, 2014-07-24 at 01:33 +0200, Ian Kumlien wrote:
> > > Try four, now including CC lists for the intel driver...
> >
> > Could you give a try to the 2 patches at:
> > https://patchwork.kernel.org/patch/4437061/
>
> Didn't quite get that it was two separate patches at first, but when i
> did i also spotted a v2 of the patch set.
>
> I applied:
> https://patchwork.kernel.org/patch/4648961/
> https://patchwork.kernel.org/patch/4648951/
>
> On to 3.16-rc7 (there was some fuzz but it applied fine)
>
> I didn't see any OOPS:es (didn't scroll around too much) but otoh the
> screen never turned off? (it's one of those silly mac things, the apple
> is still lit) and the machine doesn't "suspend/sleep" anymore.
>
> AFAIR it does, after some coaxing, on the unpatched kernel (ie, not the
> first time but the second time i turn down the lid, i tried three times
> and play:ed with brightness as i assume you can see in the log)

Hm, I can't see how these patches could prevent system suspend. Also
according to the dmesg you sent suspend didn't even start, so I guess
you're seeing a separate issue. Maybe the lid notification isn't
properly handled, but I can't really help tracking that down.

In any case to reproduce the particular bug in question (or see if the
fix works) you need to get the machine to suspend/resume somehow. One
way is to 'echo mem > /sys/power/state' as root and resume by pressing
power button or similar; could you still try this, again sending the
dmesg?

Thanks,
Imre


Attachments:
signature.asc (490.00 B)
This is a digitally signed message part

2014-07-31 21:47:56

by Ian Kumlien

[permalink] [raw]
Subject: Re: [Intel-gfx] [BUG?] 3.16-rc6 ... at drivers/gpu/drm/i915/intel_pm.c:5997 intel_display_power_put+0x12d/0x160()

On tor, 2014-07-31 at 14:39 +0300, Imre Deak wrote:
> On Wed, 2014-07-30 at 22:52 +0200, Ian Kumlien wrote:
> > Sorry for the delay, it's been damned hot - vacation is over and
> > overtime has been all the rage at work...
>
> No problem, thanks for the feedback.
>
> > On fre, 2014-07-25 at 12:28 +0300, Imre Deak wrote:
> > > On Thu, 2014-07-24 at 01:33 +0200, Ian Kumlien wrote:
> > > > Try four, now including CC lists for the intel driver...
> > >
> > > Could you give a try to the 2 patches at:
> > > https://patchwork.kernel.org/patch/4437061/
> >
> > Didn't quite get that it was two separate patches at first, but when i
> > did i also spotted a v2 of the patch set.
> >
> > I applied:
> > https://patchwork.kernel.org/patch/4648961/
> > https://patchwork.kernel.org/patch/4648951/
> >
> > On to 3.16-rc7 (there was some fuzz but it applied fine)
> >
> > I didn't see any OOPS:es (didn't scroll around too much) but otoh the
> > screen never turned off? (it's one of those silly mac things, the apple
> > is still lit) and the machine doesn't "suspend/sleep" anymore.
> >
> > AFAIR it does, after some coaxing, on the unpatched kernel (ie, not the
> > first time but the second time i turn down the lid, i tried three times
> > and play:ed with brightness as i assume you can see in the log)
>
> Hm, I can't see how these patches could prevent system suspend. Also
> according to the dmesg you sent suspend didn't even start, so I guess
> you're seeing a separate issue. Maybe the lid notification isn't
> properly handled, but I can't really help tracking that down.

It works without the drm.debug=14 so it might be something else...

> In any case to reproduce the particular bug in question (or see if the
> fix works) you need to get the machine to suspend/resume somehow. One
> way is to 'echo mem > /sys/power/state' as root and resume by pressing
> power button or similar; could you still try this, again sending the
> dmesg?

You'll find it attached ;)

> Thanks,
> Imre
>


Attachments:
dmesg-log2.txt (189.83 kB)