From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 72051] [JUNIPER] with kernel 3.12 some HDMI screens are not recognized Date: Tue, 17 Dec 2013 16:15:09 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0260651502==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 8F1E71057B3 for ; Tue, 17 Dec 2013 08:15:09 -0800 (PST) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0260651502== Content-Type: multipart/alternative; boundary="1387296909.72eCe0.5370"; charset="us-ascii" --1387296909.72eCe0.5370 Date: Tue, 17 Dec 2013 16:15:09 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=72051 --- Comment #13 from Alex Deucher --- (In reply to comment #12) > Without the option, the message is not shown, but the HDMI screen is > unusable: every second or third frame is shown shifted by approx. 50 pixels > downward. When the screen is connected before boot, it is recognized always, > but it does not work every time when hot-plugged. So, in my case > radeon.hw_i2c=1 seems to be required option. It's failing to read the edid when hw_i2c=1 so you end up with a fallback mode. Sounds like the monitor doesn't like the hdmi packets the driver is sending. Does booting with radeon.audio=0 help? -- You are receiving this mail because: You are the assignee for the bug. --1387296909.72eCe0.5370 Date: Tue, 17 Dec 2013 16:15:09 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 13 on bug 72051 from 
(In reply to comment #12)
> Without the option, the message is not shown, but the HDMI screen is
> unusable: every second or third frame is shown shifted by approx. 50 pixels
> downward. When the screen is connected before boot, it is recognized always,
> but it does not work every time when hot-plugged. So, in my case
> radeon.hw_i2c=1 seems to be required option.

It's failing to read the edid when hw_i2c=1 so you end up with a fallback mode.
 Sounds like the monitor doesn't like the hdmi packets the driver is sending. 
Does booting with radeon.audio=0 help?

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