* [Bug 199047] New: [amdgpu CARRIZO] disabled backlight after S3 resume
@ 2018-03-07 13:23 bugzilla-daemon
2018-03-07 17:29 ` [Bug 199047] " bugzilla-daemon
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: bugzilla-daemon @ 2018-03-07 13:23 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=199047
Bug ID: 199047
Summary: [amdgpu CARRIZO] disabled backlight after S3 resume
Product: Drivers
Version: 2.5
Kernel Version: 4.16-rc1
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri@kernel-bugs.osdl.org
Reporter: johannes.hirte@datenkhaos.de
Regression: No
After S3 resume, the backlight stays disabled. Re-enabling is possible with
brightness-hotkeys. The regression was introduced with:
commit 4ec6ecf48c64d1da82a008f6fb0be86c4044287d (refs/bisect/bad)
Author: Alex Deucher <alexander.deucher@amd.com>
Date: Tue Dec 12 15:20:22 2017 -0500
drm/amdgpu: drop scratch regs save and restore from S3/S4 handling
The expectation is that the base driver doesn't mess with these.
Some components interact with these directly so let the components
handle these directly.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
lspci:
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1576
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 1577
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Carrizo (rev c5)
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Kabini HDMI/DP
Audio
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 157b
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 157c
00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 157c
00:02.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 157c
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 157b
00:08.0 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 1578
00:09.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 157d
00:09.2 Audio device: Advanced Micro Devices, Inc. [AMD] Device 157a
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI
Controller (rev 20)
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller
[AHCI mode] (rev 49)
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI
Controller (rev 49)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 4a)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1570
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1571
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1572
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1573
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1574
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1575
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411
PCI Express Gigabit Ethernet Controller (rev 15)
02:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a)
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI
Express Card Reader (rev 01)
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* [Bug 199047] [amdgpu CARRIZO] disabled backlight after S3 resume
2018-03-07 13:23 [Bug 199047] New: [amdgpu CARRIZO] disabled backlight after S3 resume bugzilla-daemon
@ 2018-03-07 17:29 ` bugzilla-daemon
2018-03-07 22:58 ` bugzilla-daemon
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: bugzilla-daemon @ 2018-03-07 17:29 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=199047
--- Comment #1 from Alex Deucher (alexdeucher@gmail.com) ---
Are you using DC? Please attach your dmesg output.
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* [Bug 199047] [amdgpu CARRIZO] disabled backlight after S3 resume
2018-03-07 13:23 [Bug 199047] New: [amdgpu CARRIZO] disabled backlight after S3 resume bugzilla-daemon
2018-03-07 17:29 ` [Bug 199047] " bugzilla-daemon
@ 2018-03-07 22:58 ` bugzilla-daemon
2018-03-07 23:00 ` bugzilla-daemon
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: bugzilla-daemon @ 2018-03-07 22:58 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=199047
--- Comment #2 from Johannes Hirte (johannes.hirte@datenkhaos.de) ---
(In reply to Alex Deucher from comment #1)
> Are you using DC? Please attach your dmesg output.
Not using DC. dmesg after a S3 suspend/resume cycle attached
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* [Bug 199047] [amdgpu CARRIZO] disabled backlight after S3 resume
2018-03-07 13:23 [Bug 199047] New: [amdgpu CARRIZO] disabled backlight after S3 resume bugzilla-daemon
2018-03-07 17:29 ` [Bug 199047] " bugzilla-daemon
2018-03-07 22:58 ` bugzilla-daemon
@ 2018-03-07 23:00 ` bugzilla-daemon
2018-03-07 23:07 ` bugzilla-daemon
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: bugzilla-daemon @ 2018-03-07 23:00 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=199047
--- Comment #3 from Johannes Hirte (johannes.hirte@datenkhaos.de) ---
Created attachment 274617
--> https://bugzilla.kernel.org/attachment.cgi?id=274617&action=edit
dmesg.log
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* [Bug 199047] [amdgpu CARRIZO] disabled backlight after S3 resume
2018-03-07 13:23 [Bug 199047] New: [amdgpu CARRIZO] disabled backlight after S3 resume bugzilla-daemon
` (2 preceding siblings ...)
2018-03-07 23:00 ` bugzilla-daemon
@ 2018-03-07 23:07 ` bugzilla-daemon
2018-03-08 7:54 ` bugzilla-daemon
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: bugzilla-daemon @ 2018-03-07 23:07 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=199047
--- Comment #4 from Alex Deucher (alexdeucher@gmail.com) ---
Does it work with DC enabled?
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* [Bug 199047] [amdgpu CARRIZO] disabled backlight after S3 resume
2018-03-07 13:23 [Bug 199047] New: [amdgpu CARRIZO] disabled backlight after S3 resume bugzilla-daemon
` (3 preceding siblings ...)
2018-03-07 23:07 ` bugzilla-daemon
@ 2018-03-08 7:54 ` bugzilla-daemon
2018-03-08 14:59 ` bugzilla-daemon
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: bugzilla-daemon @ 2018-03-08 7:54 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=199047
--- Comment #5 from Johannes Hirte (johannes.hirte@datenkhaos.de) ---
(In reply to Alex Deucher from comment #4)
> Does it work with DC enabled?
With DC it works as expected. Unfortunately this is not a workaround for me,
cause there is still the use-after-free.
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* [Bug 199047] [amdgpu CARRIZO] disabled backlight after S3 resume
2018-03-07 13:23 [Bug 199047] New: [amdgpu CARRIZO] disabled backlight after S3 resume bugzilla-daemon
` (4 preceding siblings ...)
2018-03-08 7:54 ` bugzilla-daemon
@ 2018-03-08 14:59 ` bugzilla-daemon
2018-03-08 19:55 ` bugzilla-daemon
2018-04-17 7:55 ` bugzilla-daemon
7 siblings, 0 replies; 9+ messages in thread
From: bugzilla-daemon @ 2018-03-08 14:59 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=199047
--- Comment #6 from Alex Deucher (alexdeucher@gmail.com) ---
Created attachment 274621
--> https://bugzilla.kernel.org/attachment.cgi?id=274621&action=edit
possible fix
Does this fix it?
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* [Bug 199047] [amdgpu CARRIZO] disabled backlight after S3 resume
2018-03-07 13:23 [Bug 199047] New: [amdgpu CARRIZO] disabled backlight after S3 resume bugzilla-daemon
` (5 preceding siblings ...)
2018-03-08 14:59 ` bugzilla-daemon
@ 2018-03-08 19:55 ` bugzilla-daemon
2018-04-17 7:55 ` bugzilla-daemon
7 siblings, 0 replies; 9+ messages in thread
From: bugzilla-daemon @ 2018-03-08 19:55 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=199047
--- Comment #7 from Johannes Hirte (johannes.hirte@datenkhaos.de) ---
(In reply to Alex Deucher from comment #6)
> Created attachment 274621 [details]
> possible fix
>
> Does this fix it?
Yes, fixed with this patch.
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* [Bug 199047] [amdgpu CARRIZO] disabled backlight after S3 resume
2018-03-07 13:23 [Bug 199047] New: [amdgpu CARRIZO] disabled backlight after S3 resume bugzilla-daemon
` (6 preceding siblings ...)
2018-03-08 19:55 ` bugzilla-daemon
@ 2018-04-17 7:55 ` bugzilla-daemon
7 siblings, 0 replies; 9+ messages in thread
From: bugzilla-daemon @ 2018-04-17 7:55 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=199047
Johannes Hirte (johannes.hirte@datenkhaos.de) changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |CODE_FIX
--- Comment #8 from Johannes Hirte (johannes.hirte@datenkhaos.de) ---
fixed
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