Date: Tue, 24 May 2016 09:00:08 +0200 From: Juan =?iso-8859-1?b?UmFt824=?= Molina Menor <listjm@club.fr> To: Matthew Macy <mmacy@nextbsd.org> Cc: "<freebsd-x11@freebsd.org>" <freebsd-x11@freebsd.org> Subject: Re: 4.6 DRM/i915 update CFT (Sandy Bridge?)/IvyBridge/Haswell/Broadwell/SkyLake/KabyLake supported Message-ID: <5743FBF8.3040706@club.fr> In-Reply-To: <154dfa545bc.dbba1d8f203320.8129214136838969456@nextbsd.org> References: <5742C2E1.2050603@club.fr> <154def0d8ef.117603fe4187917.5862406218647075647@nextbsd.org> <57437CD8.1080504@club.fr> <154dfa545bc.dbba1d8f203320.8129214136838969456@nextbsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Le 24/05/2016 00:03, Matthew Macy a écrit : > > > > ---- On Mon, 23 May 2016 14:57:44 -0700 Juan Ramón Molina Menor <listjm@club.fr> wrote ---- > > Le 23/05/2016 20:46, Matthew Macy a écrit : > > > > > > > > > > > > ---- On Mon, 23 May 2016 01:44:17 -0700 Juan Ramón Molina Menor <listjm@club.fr> wrote ---- > > > > Hi! > > > > > > > > Your commits overnight have restored and even improved the performance > > > > with my Haswell (HD 4400) GPU: Lower CPU usage and snappier resize / > > > > full-screen changes. > > > > > > > > But on the other hand, loading the i915kms module through startx > > > > (non-root) panics, I have to use kldload i915kms. > > > > > > > > Also, changing the power mode (plugging or unplugging the power cord) > > > > leads to instant panic, while with the drm-next-3.9 branch, switching > > > > AC/battery modifies backlight value up and down without issues. I have > > > > replaced the screenshot: > > > > > > > > https://wiki.freebsd.org/Laptops/ThinkPad_S440?action=AttachFile&do=get&target=panic-DRM-46.jpg > > > > > > I'll need the backtrace from both panics. Neither of them occurs on my hardware. If you have a problem recovering a core dump try loading drm2 first and then setting dev.drm.skip_ddb=1. That will bypass much of the work that panic tries to do to quiesce the CPU before dumping core. > > > > > > -M > > > > > > > Thanks for your attention. > > > > Attached the screenshot resulting from the following: > > > > # kldload drm2 > > # sysctl dev.drm.skip_ddb=1 > > # kldload i915kms > > [plug / unplug the power cord (the result is exactly the same)] > > > > panic: IMPLEMENT ME > > …then the backtrace: > > > > https://wiki.freebsd.org/Laptops/ThinkPad_S440?action=AttachFile&do=view&target=panic-DRM-46-AC-battery.jpg > > > > I have tried setting the same values for > > hw.acpi.video.lcd0.{economy,fullpower} but it still panics. > > > > Sorry for the ACPI noise in the image, that’s another story… > > > > Excellent. That tells me exactly what needs to be done. And the startx panic? If it's a race in I915 you'll still hit it doing the skip_ddb step first I'd think. I really should make that a tunable. Sorry but for the startx case I cannot get more than the previously posted hang: https://wiki.freebsd.org/Laptops/ThinkPad_S440?action=AttachFile&do=view&target=panic-DRM-46.jpg Either it reboots right after issuing startx (if I don’t previously kldload i915kms) or hangs as above after some video playing (with the drm2, sysctl dev.drm.skip_ddb=1 sequence). Best regards, Juan > > Thanks! > > I probably won't have time to fix it today. Nonetheless, it should be fixed by the next update some time this week. > > -M > > > > > > Hope it helps, > > Juan > > >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?5743FBF8.3040706>