From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 108514] heavy screen flickering with Mobility Radeon X1600 and kernel version onwards 3.13 Date: Tue, 23 Oct 2018 16:45:12 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0859675088==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 8D95E6E1E6 for ; Tue, 23 Oct 2018 16:45:12 +0000 (UTC) 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 --===============0859675088== Content-Type: multipart/alternative; boundary="15403131120.Ee20ECB.14419" Content-Transfer-Encoding: 7bit --15403131120.Ee20ECB.14419 Date: Tue, 23 Oct 2018 16:45:12 +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=3D108514 --- Comment #4 from Werner Lueckel --- - I attached 2 dmesg-listings; booting Ubuntu14.04, Kernel3.13 -> screen is o.k.; no flickering booting Ubuntu18.04, Kernel4.15 -> screen flickers. - no Xorg log since the flickering happens already in text-mode - I did the following test (on Ubuntu18.04): . boot with radeon.modeset=3D0 (thus: disable radeon driver) -> screen o.k.; NO flickering . then sudo modprobe -v radeon modeset=3D1 -> and the flickering starts ... --=20 You are receiving this mail because: You are the assignee for the bug.= --15403131120.Ee20ECB.14419 Date: Tue, 23 Oct 2018 16:45:12 +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 # 4 on bug 10851= 4 from Werner Lueckel 
- I attached 2 dmesg-listings;
  booting Ubuntu14.04, Kernel3.13 -> screen is o.k.; no flickering
  booting Ubuntu18.04, Kernel4.15 -> screen flickers.
- no Xorg log since the flickering happens already in text-mode
- I did the following test (on Ubuntu18.04):
  . boot with radeon.modeset=3D0 (thus: disable radeon driver)
    -> screen o.k.; NO flickering
  . then sudo modprobe -v radeon modeset=3D1
    -> and the flickering starts ...

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