From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 110973] New: GeForce GT 750M Mac Edition backlight Date: Sun, 23 Jun 2019 20:50:45 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0751753988==" 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 --===============0751753988== Content-Type: multipart/alternative; boundary="15613230460.cbd4.24039" Content-Transfer-Encoding: 7bit --15613230460.cbd4.24039 Date: Sun, 23 Jun 2019 20:50:46 +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=3D110973 Bug ID: 110973 Summary: GeForce GT 750M Mac Edition backlight Product: Mesa Version: unspecified Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: Drivers/DRI/nouveau Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Reporter: ak-b7SOpcJQXxU@public.gmane.org QA Contact: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Created attachment 144616 --> https://bugs.freedesktop.org/attachment.cgi?id=3D144616&action=3Dedit sudo acpidump -o acpidump.txt Hello! I notice when laptop display went off, it keep backlight on. Technically speaking this: # xset dpms force off only set screen to black, without turning off LCD backlight. My kernel has "acpi_backlight=3Dvendor" which enables backlight control from function keys and gnome recognize those actions by displaying popup with current brightness level. Everything seems works fine, I've been able to turn display off using: # echo 0 > /sys/devices/pnp0/00:03/backlight/gmux_backlight/brightness But still no luck with 'xset'. axet@axet-laptop:~$ ls -al /sys/class/backlight/ total 0 drwxr-xr-x 2 root root 0 =D0=B8=D1=8E=D0=BD 23 23:13 . drwxr-xr-x 67 root root 0 =D0=B8=D1=8E=D0=BD 23 23:13 .. lrwxrwxrwx 1 root root 0 =D0=B8=D1=8E=D0=BD 23 23:13 gmux_backlight -> ../../devices/pnp0/00:03/backlight/gmux_backlight axet@axet-laptop:~$ Maybe related: https://bugs.freedesktop.org/show_bug.cgi?id=3D106869 --=20 You are receiving this mail because: You are the assignee for the bug. You are the QA Contact for the bug.= --15613230460.cbd4.24039 Date: Sun, 23 Jun 2019 20:50:46 +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 110973
Summary GeForce GT 750M Mac Edition backlight
Product Mesa
Version unspecified
Hardware Other
OS All
Status NEW
Severity normal
Priority medium
Component Drivers/DRI/nouveau
Assignee nouveau@lists.freedesktop.org
Reporter ak@axet.ru
QA Contact nouveau@lists.freedesktop.org 

Created attachment=
 144616 [details]
sudo acpidump -o acpidump.txt

Hello!

I notice when laptop display went off, it keep backlight on.

Technically speaking this:

# xset dpms force off

only set screen to black, without turning off LCD backlight.

My kernel has "acpi_backlight=3Dvendor" which enables backlight c=
ontrol from
function keys and gnome recognize those actions by displaying popup with
current brightness level.

Everything seems works fine, I've been able to turn display off using:

# echo 0 > /sys/devices/pnp0/00:03/backlight/gmux_backlight/brightness

But still no luck with 'xset'.

axet@axet-laptop:~$ ls -al /sys/class/backlight/
total 0
drwxr-xr-x  2 root root 0 =D0=B8=D1=8E=D0=BD 23 23:13 .
drwxr-xr-x 67 root root 0 =D0=B8=D1=8E=D0=BD 23 23:13 ..
lrwxrwxrwx  1 root root 0 =D0=B8=D1=8E=D0=BD 23 23:13 gmux_backlight ->
../../devices/pnp0/00:03/backlight/gmux_backlight
axet@axet-laptop:~$



Maybe related: https://bugs.freedesktop.org/show_bug.=
cgi?id=3D106869

You are receiving this mail because:
  • You are the assignee for the bug.
  • You are the QA Contact for the bug.
= --15613230460.cbd4.24039-- --===============0751753988== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTm91dmVhdSBt YWlsaW5nIGxpc3QKTm91dmVhdUBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9ub3V2ZWF1 --===============0751753988==--