Date: Fri, 12 Aug 2016 20:56:34 +0200 From: "inti.glez.herrera" <inti.glez.herrera@gmail.com> To: freebsd-x11@freebsd.org Subject: testing drm-next 4.6 on i915 broadwell Message-ID: <CAKJji3oTPVGk2VAkp3R2yq3a9ryPh%2B1dX92oZ9WKN-hy%2BAh%2BXg@mail.gmail.com>
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Hello, My current laptop features the i915 Broadwell microarchitecture. I was trying to use FreeBSD when I realized that the graphic support is limited. I am interested on actively contributing to the development (although unfortunately, so far my knowledge is limited). After cloning freebsd-base-graphcis (branch drm-next-4.6), I can finally load the device driver and run Xorg. However, there are some problems: - The response time becomes really slow. - Typing a simple command in the console can take 20 seconds. - The mouse is also moving slow - Executing a simple startx implies a reset because it slowdown the system - Even a simple xclock is a problem I was trying to identify where is the issue and my plan was using dtrace. Right now I can use it to collect kernel stack traces, but instead of the name of function, the output is only showing the addresses. My question is: do I need to compile the kernel with some special flags to support symbols in dtrace ? A secondary question : do you recommend another profiler (or tool) to debug this kind of problem ? Some basic information: I am using the generic configuration and I updated a bunch of ports using freebsd-ports-graphics. - Inti
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