Date: Mon, 21 Aug 2023 14:24:59 -0400 From: Mark Johnston <markj@freebsd.org> To: Pete Wright <pete@nomadlogic.org> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: kabylake + drm-515-kmod/drm-510-kmod hangs Message-ID: <ZOOr--4YR-wHWZ-0@nuc> In-Reply-To: <76275772-a9c3-ed59-5fb3-47a13d2a69e6@nomadlogic.org> References: <76275772-a9c3-ed59-5fb3-47a13d2a69e6@nomadlogic.org>
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On Mon, Aug 21, 2023 at 10:44:28AM -0700, Pete Wright wrote: > hey there, > i've got a kabylake laptop that i've been using with drm-kmod for several > years without much hassle. after upgrading to a new CURRENT this weekend > I've found that when loading either the 510 or 515 drm-kmod kernel modules > my system will hang. > > unfortunately i am not getting a panic or crash, the screen stops updating > and i am unable to ping or SSH into the system. interestingly the capslock > LED still toggles but doing a CTL+ALT+DEL does not seem to do anything > useful and i have to manually power cycle. Does your system have the debug.debugger_on_panic sysctl set to 1? If so, does setting it to 0 allow the system to reboot following the hang? > any tips for finding out what's going on? i've booted the system with > verbose dmesg output, and loaded the module with "kldload -v" but do not get > any useful output. Commit cedc82c0466a in src changed the layout of a structure used by a stub in the GPU firmware kernel modules. If you rebuild the one(s) you need from ports, does the problem persist? FWIW I had to do this: $ cd /usr/ports/graphics/gpu-firmware-intel-kmod $ sudo make reinstall FLAVOR=kabylake
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