From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 110407] New: /sys/class/backlight/nv_backlight doesn't work on Dell Precision 7530 GP107GLM [Quadro P1000 Mobile] Date: Fri, 12 Apr 2019 05:56:55 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1563224148==" Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============1563224148== Content-Type: multipart/alternative; boundary="15550486152.0dEaea6.8733" Content-Transfer-Encoding: 7bit --15550486152.0dEaea6.8733 Date: Fri, 12 Apr 2019 05:56:55 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D110407 Bug ID: 110407 Summary: /sys/class/backlight/nv_backlight doesn't work on Dell Precision 7530 GP107GLM [Quadro P1000 Mobile] Product: xorg Version: unspecified Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: Driver/nouveau Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Reporter: kai.heng.feng-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org This laptop has an BIOS option "Switchable Graphics". When the options is selected, it behaves like a normal Optimus laptop. In this case, brightness sysfs works since it's driven by Intel graphics. When the options is deselected, the Intel graphics device disappears, Nvidi= a is the only graphics device. The issue happens in this case. Changing /sys/class/backlight/nv_backlight/brightness, the brightness level remains the same - almost no backlight. Using proprietary driver, brightness gets changed correctly by /sys/class/backlight/nvidia_0/brightness. No trace while using MMIOTRACE, under proprietary driver. --=20 You are receiving this mail because: You are the assignee for the bug.= --15550486152.0dEaea6.8733 Date: Fri, 12 Apr 2019 05:56:55 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated
Bug ID 110407
Summary /sys/class/backlight/nv_backlight doesn't work on Dell Precis= ion 7530 GP107GLM [Quadro P1000 Mobile]
Product xorg
Version unspecified
Hardware Other
OS All
Status NEW
Severity normal
Priority medium
Component Driver/nouveau
Assignee nouveau@lists.freedesktop.org
Reporter kai.heng.feng@canonical.com
QA Contact xorg-team@lists.x.org 

This laptop has an BIOS option "Switchable Graphics"=
. When the options is
selected, it behaves like a normal Optimus laptop. In this case, brightness
sysfs works since it's driven by Intel graphics.

When the options is deselected, the Intel graphics device disappears, Nvidi=
a is
the only graphics device. The issue happens in this case.

Changing /sys/class/backlight/nv_backlight/brightness, the brightness level
remains the same - almost no backlight.

Using proprietary driver, brightness gets changed correctly by
/sys/class/backlight/nvidia_0/brightness.

No trace while using MMIOTRACE, under proprietary driver.

You are receiving this mail because:
  • You are the assignee for the bug.
= --15550486152.0dEaea6.8733-- --===============1563224148== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTm91dmVhdSBt YWlsaW5nIGxpc3QKTm91dmVhdUBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9ub3V2ZWF1 --===============1563224148==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 110407] /sys/class/backlight/nv_backlight doesn't work on Dell Precision 7530 GP107GLM [Quadro P1000 Mobile] Date: Fri, 12 Apr 2019 14:02:43 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0147302364==" Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============0147302364== Content-Type: multipart/alternative; boundary="15550777630.0E20.1530" Content-Transfer-Encoding: 7bit --15550777630.0E20.1530 Date: Fri, 12 Apr 2019 14:02:43 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D110407 --- Comment #1 from Ilia Mirkin --- When in non-switchable mode, are there other things in /sys/class/backlight? e.g. acpi_video0? Also, presumably this is on v5.0 or later? Prior to that, there was no backlight support for Pascal. --=20 You are receiving this mail because: You are the assignee for the bug.= --15550777630.0E20.1530 Date: Fri, 12 Apr 2019 14:02:43 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Commen= t # 1 on bug 11040= 7 from Ilia Mirkin 
When in non-switchable mode, are there other things in /sys/cl=
ass/backlight?
e.g. acpi_video0?

Also, presumably this is on v5.0 or later? Prior to that, there was no
backlight support for Pascal.

You are receiving this mail because:
  • You are the assignee for the bug.
= --15550777630.0E20.1530-- --===============0147302364== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTm91dmVhdSBt YWlsaW5nIGxpc3QKTm91dmVhdUBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9ub3V2ZWF1 --===============0147302364==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 110407] /sys/class/backlight/nv_backlight doesn't work on Dell Precision 7530 GP107GLM [Quadro P1000 Mobile] Date: Fri, 12 Apr 2019 15:10:12 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2115982173==" Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============2115982173== Content-Type: multipart/alternative; boundary="15550818122.aCF6.28064" Content-Transfer-Encoding: 7bit --15550818122.aCF6.28064 Date: Fri, 12 Apr 2019 15:10:12 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D110407 --- Comment #2 from Kai-Heng Feng --- (In reply to Ilia Mirkin from comment #1) > When in non-switchable mode, are there other things in /sys/class/backlig= ht? > e.g. acpi_video0? No, nv_backlight (or nvidia_0) is the only interface. I also tried to call _BCM directly via acpidbg, but both Intel's and Nvidia= 's _BCM method changes nothing. Please refer to the original bug report [1]. >=20 > Also, presumably this is on v5.0 or later? Prior to that, there was no > backlight support for Pascal. Yes, on both v5.0 and linux-next. [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1821882 --=20 You are receiving this mail because: You are the assignee for the bug.= --15550818122.aCF6.28064 Date: Fri, 12 Apr 2019 15:10:12 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Commen= t # 2 on bug 11040= 7 from Kai-Heng Feng 
(In reply to Ilia Mirkin from comment #1)
> When in non-switchable mode, are there other thi=
ngs in /sys/class/backlight?
> e.g. acpi_video0?

No, nv_backlight (or nvidia_0) is the only interface.

I also tried to call _BCM directly via acpidbg, but both Intel's and Nvidia=
's
_BCM method changes nothing.

Please refer to the original bug report [1].

>=20
> Also, presumably this is on v5.0 or later? Prior to that, there was no
> backlight support for Pascal.

Yes, on both v5.0 and linux-next.

[1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1821882

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= --15550818122.aCF6.28064-- --===============2115982173== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTm91dmVhdSBt YWlsaW5nIGxpc3QKTm91dmVhdUBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9ub3V2ZWF1 --===============2115982173==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 110407] /sys/class/backlight/nv_backlight doesn't work on Dell Precision 7530 GP107GLM [Quadro P1000 Mobile] Date: Thu, 04 Jul 2019 08:07:10 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0072752162==" Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============0072752162== Content-Type: multipart/alternative; boundary="15622276290.42bAf1e.7316" Content-Transfer-Encoding: 7bit --15622276290.42bAf1e.7316 Date: Thu, 4 Jul 2019 08:07:09 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D110407 --- Comment #3 from Kai-Heng Feng --- Any further ideas that I can try? --=20 You are receiving this mail because: You are the assignee for the bug.= --15622276290.42bAf1e.7316 Date: Thu, 4 Jul 2019 08:07:09 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Commen= t # 3 on bug 11040= 7 from Kai-Heng Feng 
Any further ideas that I can try?

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= --15622276290.42bAf1e.7316-- --===============0072752162== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTm91dmVhdSBt YWlsaW5nIGxpc3QKTm91dmVhdUBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9ub3V2ZWF1 --===============0072752162==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 110407] /sys/class/backlight/nv_backlight doesn't work on Dell Precision 7530 GP107GLM [Quadro P1000 Mobile] Date: Wed, 04 Dec 2019 09:48:38 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0548818184==" Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============0548818184== Content-Type: multipart/alternative; boundary="15754529170.0f6AC6a.31189" Content-Transfer-Encoding: 7bit --15754529170.0f6AC6a.31189 Date: Wed, 4 Dec 2019 09:48:37 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D110407 Martin Peres changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |MOVED --- Comment #4 from Martin Peres --- -- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this = link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/483. --=20 You are receiving this mail because: You are the assignee for the bug.= --15754529170.0f6AC6a.31189 Date: Wed, 4 Dec 2019 09:48:37 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated <= span class=3D"fn">Martin Peres changed bug 11040= 7
What Removed Added
Status NEW RESOLVED
Resolution --- MOVED

Commen= t # 4 on bug 11040= 7 from Martin Peres 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this =
link
to our GitLab instance:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/iss=
ues/483.

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