From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 31122] Cannot control backlight intensity on Powerbook Date: Fri, 05 Aug 2016 16:37:34 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2110972287==" 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 --===============2110972287== Content-Type: multipart/alternative; boundary="14704150543.Ca3Abaf.17148"; charset="UTF-8" --14704150543.Ca3Abaf.17148 Date: Fri, 5 Aug 2016 16:37:34 +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=3D31122 --- Comment #11 from A. Chaud --- nvagetbios wasn't able to extract the bios. From what I gathered after searching, openfirmware handles vbios differently (ie: no checksums, smaller vbios, etc). I found a nv34 openfirmware bios someone else dumped and nvbi= os is unable to decode the GPIO section. However, if the aim is ensuring the device has a backlight, I believe it's already done. In nouveau_backlight_init, it first checks to ensure there's= a display on either LVDS or eDP. Can we not reasonably assume that if the gpu has a LVDS or eDP panel attached that it also has a backlight? My init function is a slightly altered version of the existing nv40_backlight_init function which doesn't have a backlight check either. --=20 You are receiving this mail because: You are the assignee for the bug.= --14704150543.Ca3Abaf.17148 Date: Fri, 5 Aug 2016 16:37:34 +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 # 11 on bug 31122<= /a> from A. Chaud 
nvagetbios wasn't able to extract the bios.  From what I gathe=
red after
searching, openfirmware handles vbios differently (ie: no checksums, smaller
vbios, etc).  I found a nv34 openfirmware bios someone else dumped and nvbi=
os
is unable to decode the GPIO section.

However, if the aim is ensuring the device has a backlight, I believe it's
already done.  In nouveau_backlight_init, it first checks to ensure there's=
 a
display on either LVDS or eDP.  Can we not reasonably assume that if the gpu
has a LVDS or eDP panel attached that it also has a backlight?  My init
function is a slightly altered version of the existing nv40_backlight_init
function which doesn't have a backlight check either.

You are receiving this mail because:
  • You are the assignee for the bug.
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