From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ed Tomlinson Subject: Re: [BUG] 3.14-rc6 problems with an R7 260X Date: Mon, 10 Mar 2014 13:29:41 -0400 Message-ID: <33204379.FfpmvHoDUX@grover> References: <1825482.79WA6myBva@grover> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Alex Deucher Cc: LKML , Maling list - DRI developers , Dave Airlie List-Id: dri-devel@lists.freedesktop.org On Monday 10 March 2014 12:38:42 Alex Deucher wrote: > On Mon, Mar 10, 2014 at 11:47 AM, Ed Tomlinson wrote: > > Hi, > > > > I recently added a R7 260X to my system. While the card works with 3.13 its supposed work much better with 14-rc. > > This is not the case. My system is unstable without radeon.dpm=0 which was the default in .13. Here are some extracts > > from the logs of the latest fun with dpm enabled: omitted > > The above type of errors repeat hundreds of times and eventually the display freezes (this box does not have a serial console and it did not check with ssh) > > > > When X started I did notice some corruption. There are sets of two rectangles about of a height of 2 or 3 mm, width of 25m or so with a second > > about a cm below. The often occurs in chomium especially when scrolling. Runing the unigine-sanctuary or unigine-tropics demo/benchmark > > programs also produce the above problems and eventually stall. > > > > The problem is reproducible - I am not that familiar with gpu problems though, what else will help debug this? > > > > Please file a bug at https://bugs.freedesktop.org (Product: DRI, > Component: DRM/Radeon) and attach your dmesg output and xorg log. Filed as bug 75992 Let me know if you want me to test anything or if more info is needed. TIA Ed