Date: Thu, 3 Jan 2019 17:01:31 -0800 From: Pete Wright <pete@nomadlogic.org> To: Kevin Zheng <kevinz5000@gmail.com>, x11@FreeBSD.org Subject: Re: GPU hang on ThinkPad T420 with drm-kmod on 12.0-RELEASE Message-ID: <c1bd7244-70d7-109c-97c6-0bb969f1fe4f@nomadlogic.org> In-Reply-To: <d3c55331-8b70-c2f7-8772-97640fd4c8b6@gmail.com> References: <d3c55331-8b70-c2f7-8772-97640fd4c8b6@gmail.com>
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On 1/3/19 4:39 PM, Kevin Zheng wrote: > Hi there, > > I don't know if anyone else has been having similar issues. > > On the ThinkPad T420 (i5-2540M, Sandybridge), the drm-kmod > (drm-fbsd12.0-kmod-4.16.g20181215) hangs like this, infrequently, but > often enough on GPU applications: > > [drm] GPU HANG: ecode 6:0:0x61f7fffd, in chrome [100694], reason: Hang > on rcs0, action: reset > drmn0: Resetting chip after gpu hang > last message repeated 1 times > drmn0: i915_reset_device timed out, cancelling all in-flight rendering. > > It doesn't just hang with Chromium, it hangs on other apps as well. > > Tricky thing is that things otherwise seem to work, and I haven't > figured out how to reliably reproduce the hang. > > Particularly, https://wiki.freebsd.org/Graphics/Intel-GPU-Matrix > claims that other people have working Ivy Bridge with drm-kmod; maybe > that has to be drm-kmod-legacy until I figure out what's going on. > > Should I create a PR, or wait until I have more info? > Can you test out the drm-legacy-kmod pkg and see if that resolves these issues? There was a recent user report that Ivy Bridge was working with the drm-kmod package, but it's possible I was mistaken there. Cheers, -pete -- Pete Wright pete@nomadlogic.org @nomadlogicLA
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