From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 81382] Text console blanking does not go away Date: Mon, 15 Sep 2014 20:47:50 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1585300135==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 47EF3891EC for ; Mon, 15 Sep 2014 13:47:50 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1585300135== Content-Type: multipart/alternative; boundary="1410814070.fd11BdA0.17301"; charset="us-ascii" --1410814070.fd11BdA0.17301 Date: Mon, 15 Sep 2014 20:47:50 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=81382 --- Comment #14 from Alex Deucher --- (In reply to comment #11) > If I change /sys/class/backlight/radeon_bl0/brightness or > /sys/class/backlight/acpi_video0 the display stayes dark. > > @Alex > is this what you wanted to know? If not, please let me know, how I could > help you to debug this problem! Without the patch from this bug report applied (e.g., when your display is working), which, if any, of the blacklight interfaces work? It seems like perhaps your laptop claims to have a GPU controlled backlight, but really uses an external backlight control. Can you attach a copy of your vbios? TO get a copy of your vbios: (as root) (use lspci to get the bus id) cd /sys/bus/pci/devices/ echo 1 > rom cat rom > /tmp/vbios.rom echo 0 > rom -- You are receiving this mail because: You are the assignee for the bug. --1410814070.fd11BdA0.17301 Date: Mon, 15 Sep 2014 20:47:50 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 14 on bug 81382 from 
(In reply to comment #11)
> If I change /sys/class/backlight/radeon_bl0/brightness or
> /sys/class/backlight/acpi_video0 the display stayes dark.
> 
> @Alex
> is this what you wanted to know? If not, please let me know, how I could
> help you to debug this problem!

Without the patch from this bug report applied (e.g., when your display is
working), which, if any, of the blacklight interfaces work?  It seems like
perhaps your laptop claims to have a GPU controlled backlight, but really uses
an external backlight control.  Can you attach a copy of your vbios?  TO get a
copy of your vbios:

(as root)
(use lspci to get the bus id)
cd /sys/bus/pci/devices/<pci bus id>
echo 1 > rom
cat rom > /tmp/vbios.rom
echo 0 > rom

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