From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot Date: Thu, 28 Mar 2013 19:14:13 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1264896635==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id DF7AAE5C76 for ; Thu, 28 Mar 2013 12:14:12 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1264896635== Content-Type: multipart/alternative; boundary="1364498053.4E51Eae1.7179"; charset="us-ascii" --1364498053.4E51Eae1.7179 Date: Thu, 28 Mar 2013 19:14:13 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=42373 --- Comment #43 from Jonathan Hamilton --- I do not know if this is relevant, but I recently purchased a radeon 6450 and had similar issues - corruption when KMS is started and lockups when X starts. I did not get these issues in fglrx or the windows drivers. I then happened to notice that the memory clock settings for the 'boot' power profile were incorrect, and were significantly higher than the card should support. The high & low power states appeared to be correct. Changing the boot values using the Radeon Bios editor (http://www.techpowerup.com/rbe/) fixed these problems for me. -- You are receiving this mail because: You are the assignee for the bug. --1364498053.4E51Eae1.7179 Date: Thu, 28 Mar 2013 19:14:13 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 43 on bug 42373 from 
I do not know if this is relevant, but I recently purchased a radeon 6450 and
had similar issues - corruption when KMS is started and lockups when X starts.
I did not get these issues in fglrx or the windows drivers.

I then happened to notice that the memory clock settings for the 'boot' power
profile were incorrect, and were significantly higher than the card should
support. The high & low power states appeared to be correct. Changing the boot
values using the Radeon Bios editor (http://www.techpowerup.com/rbe/) fixed
these problems for me.

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