From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 94502] R9-270 has no video output when underclocked Date: Fri, 11 Mar 2016 18:59:42 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1599356342==" 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 DB70A6EB40 for ; Fri, 11 Mar 2016 18:59:43 +0000 (UTC) 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 --===============1599356342== Content-Type: multipart/alternative; boundary="14577227820.ffca848ae.2293"; charset="UTF-8" --14577227820.ffca848ae.2293 Date: Fri, 11 Mar 2016 18:59:42 +0000 MIME-Version: 1.0 Content-Type: text/plain https://bugs.freedesktop.org/show_bug.cgi?id=94502 Bug ID: 94502 Summary: R9-270 has no video output when underclocked Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon Assignee: dri-devel@lists.freedesktop.org Reporter: maweki@gmail.com I have a Radeon R9-270 and I am running Fedora 23 with the default OpenSource drivers supplied with the repository. Yesterday I did an Update from Kernel 4.3.3-300 to 4.4.3-300 and I started seeing some issues. When I do nothing for about 12 seconds the screens (dual head) turn blank. Moving the mouse makes the screen go back on again. Sometimes the login-screen of the gnome-shell or chrome are frozen but the system as a whole seems fine. During normal operations /sys/kernel/debug/dri/0/radeon_pm_info is the following: power level 0 sclk: 30000 mclk: 120000 vddc: 950 vddci: 1000 pcie gen: 2 When the screen is still for a bit (exactly when it turns blank) the output is power level 0 sclk: 30000 mclk: 15000 vddc: 900 vddci: 850 pcie gen: 2 So apparently, when the video card is clocked down, the output is deactivated. My current "workaround" is running videos on the side - not an ideal solution. -- You are receiving this mail because: You are the assignee for the bug. --14577227820.ffca848ae.2293 Date: Fri, 11 Mar 2016 18:59:42 +0000 MIME-Version: 1.0 Content-Type: text/html
Bug ID 94502
Summary R9-270 has no video output when underclocked
Product DRI
Version unspecified
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity normal
Priority medium
Component DRM/Radeon
Assignee dri-devel@lists.freedesktop.org
Reporter maweki@gmail.com 

I have a Radeon R9-270 and I am running Fedora 23 with the default OpenSource
drivers supplied with the repository.

Yesterday I did an Update from Kernel 4.3.3-300 to 4.4.3-300 and I started
seeing some issues. When I do nothing for about 12 seconds the screens (dual
head) turn blank. Moving the mouse makes the screen go back on again. Sometimes
the login-screen of the gnome-shell or chrome are frozen but the system as a
whole seems fine.

During normal operations /sys/kernel/debug/dri/0/radeon_pm_info is the
following:
power level 0    sclk: 30000 mclk: 120000 vddc: 950 vddci: 1000 pcie gen: 2

When the screen is still for a bit (exactly when it turns blank) the output is
power level 0    sclk: 30000 mclk: 15000 vddc: 900 vddci: 850 pcie gen: 2

So apparently, when the video card is clocked down, the output is deactivated.

My current "workaround" is running videos on the side - not an ideal solution.

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