From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 111122] 2500U: Graphics corruption on kernel 5.2 Date: Sat, 13 Jul 2019 07:03:02 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1344900250==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id 817826E3C1 for ; Sat, 13 Jul 2019 07:03:02 +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 --===============1344900250== Content-Type: multipart/alternative; boundary="15630013821.FaEbf54F9.12118" Content-Transfer-Encoding: 7bit --15630013821.FaEbf54F9.12118 Date: Sat, 13 Jul 2019 07:03:02 +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=3D111122 --- Comment #2 from andreaskem@web.de --- Reintroducing iommu=3Dpt does, indeed, seem to fix these graphical issues. = Why is this flag suddenly required for proper operation again? Is every laptop with an Raven Ridge APU different here or why can the kernel not just figure out how to properly configure the IOMMU so that everything works? --=20 You are receiving this mail because: You are the assignee for the bug.= --15630013821.FaEbf54F9.12118 Date: Sat, 13 Jul 2019 07:03:02 +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 # 2 on bug 11112= 2 from andreaskem@web.d= e 
Reintroducing iommu=3Dpt does, indeed, seem to fix these graph=
ical issues. Why is
this flag suddenly required for proper operation again?

Is every laptop with an Raven Ridge APU different here or why can the kernel
not just figure out how to properly configure the IOMMU so that everything
works?

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