From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 90320] Lenovo ThinkPad E455 (Kaveri A10-7300): Blank built-in screen with radeon kms driver Date: Wed, 13 May 2015 07:01:58 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0009873853==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 5772E6E608 for ; Wed, 13 May 2015 00:01:59 -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 --===============0009873853== Content-Type: multipart/alternative; boundary="1431500519.fbabeFb21.14725"; charset="UTF-8" --1431500519.fbabeFb21.14725 Date: Wed, 13 May 2015 07:01:59 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=90320 N.Leiten changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |nickleiten@gmail.com --- Comment #8 from N.Leiten --- Created attachment 115731 --> https://bugs.freedesktop.org/attachment.cgi?id=115731&action=edit FHD Panel Datasheet. Due this datasheet the panel looks the same as for DP configuration comparing whith N133HSE-EA1 (asus u38n) panel. So it needs 2 lanes to init video stream. As for your dmesg, I see problem in dp_aux_ch and training procedure (the voltage and emphasis is 0 which is not right at this point). Need to debug further when I publish my patch and if it not help. One more thing, do you have FullHD (1920x1080) panel or WHD (1366x768) one. Because on Lenovo site I see Thinkpad e455 base model with WHD. The last one need only 1 DisplayPort lane to work. -- You are receiving this mail because: You are the assignee for the bug. --1431500519.fbabeFb21.14725 Date: Wed, 13 May 2015 07:01:59 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" changed bug 90320
What Removed Added
CC   nickleiten@gmail.com

Comment # 8 on bug 90320 from 
Created attachment 115731 [details]
FHD Panel Datasheet.

Due this datasheet the panel looks the same as for DP configuration comparing
whith N133HSE-EA1 (asus u38n) panel. So it needs 2 lanes to init video stream.

As for your dmesg, I see problem in dp_aux_ch and training procedure (the
voltage and emphasis is 0 which is not right at this point). Need to debug
further when I publish my patch and if it not help.

One more thing, do you have FullHD (1920x1080) panel or WHD (1366x768) one.
Because on Lenovo site I see Thinkpad e455 base model with WHD. The last one
need only 1 DisplayPort lane to work.

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