Re: i915kms on Lenovo T510

On Tue, May 29, 2018 at 7:52 AM M&S - Krasznai András <
[email protected]> wrote:

> Hi
>
>
>
> yesterday and today I did some testing:
>
>
>
> installed a new freebsd-current, upgraded the source to #...... and
> compiled a GENERIC kernel with a minimal src.conf (just be able to use
> ccache for compiling).
>
>
>
> After successful installation of the new GENERIC kernel I tested the
> drm-stable-kmod and drm-next-kmod with the appropriate changes to rc.conf
> and /boot/loader.conf.
>
>
>
> In both cases I got the fatal trap 12, immediately after manually loading
> the /boot/modules/i915kms.ko module.
>
>
>
> I attach 4 pictures of my screen; the first two shows the trap itself and
> the stack trace for drm-kmod-stable, and the 3rd and 4th are the same for
> drm-next-kmod.
>
>
>

Hi!  Thanks for the report. I looks like you have an older card that's
supported by drm2 in the kernel but not drm-stable-kmod.
However, good news! We just enabled older devices in the drm-stable-kmod
branch.

You can try build from source here
https://github.com/FreeBSDDesktop/kms-drm/tree/drm-v4.9

Or wait a week or so until we have updated the drm-stable-kmod to use the
new version. (drm-next-kmod will not be updated for this since it will soon
be replaced with a new version)



>
>
> rgds
>
>
>
> András Krasznai
>
>
>
>
>
> *From:* Johannes Lundberg [mailto:[email protected]]
> *Sent:* Thursday, May 24, 2018 1:14 PM
> *To:* M&S - Krasznai András
> *Cc:* x11-list freebsd
> *Subject:* Re: i915kms on Lenovo T510
>
>
>
>
>
> On Thu, May 24, 2018 at 12:10 PM M&S - Krasznai András <
> [email protected]> wrote:
>
> Hi
>
>
>
> explicitly specifying the path for the modules did not help.
>
>
>
> Hans Peter Selansky looked at the Fatal trap and suggested to compile a
> GENERIC kernel with debugging support so we can see  the backtrace, I am
> now compiling. It will take 3-4 hours so I will report the results tomorrow.
>
> rgds
>
>
>
> Great! Thanks. We really appreciate you're taking the time to track this
> down.
>
>
>
>
> András Krasznai
>
>
>
>
>
> *Feladó:* Johannes Lundberg [mailto:[email protected]]
> *Küldve:* 2018. május 24. 12:31
> *Címzett:* M&S - Krasznai András
> *Másolatot kap:* x11-list freebsd
> *Tárgy:* Re: i915kms on Lenovo T510
>
>
>
>
>
> On Thu, May 24, 2018 at 11:18 AM Johannes Lundberg <[email protected]>
> wrote:
>
>
> Andreas Nilsson writes:
>
> > On Thu, May 24, 2018 at 12:01 PM, Johannes Lundberg <[email protected]>
> > wrote:
> >
> >> On Thu, May 24, 2018 at 7:33 AM M&S - Krasznai András <
> >> [email protected]> wrote:
> >>
> >> > hi
> >> >
> >> > I am using a Lenovo T510 laptop with FreeBSD-CURRENT.
> >> >
> >> > It contains Intel I5 processor and integrated Intel graphics adapter.
> >> >
> >> > I tried to set it to drm-stable-kmod as well as to drm-next-kmod, none
> >> was
> >> > working, I got a fatal trap, kernel panic during boot.
> >> >
> >> > Compiling the packages on my system did not help. The graphics adapter
> >> can
> >> > be old for drm-xxxx-kmod packages.
> >> >
> >> > Drm2 from the base works correctly on my laptop.
> >> >
> >> > rgds
> >> >
> >> > Andras Krasznai
> >> >
> >> >
> >>
> >> Hi
> >>
> >> Starting a new thread with cc: graphics mailing list.
> >>
> >> So, this is a 64 bit machine and you're running freebsd-amd64, right?
> >>
> >> Do you know if the CPU architecture is Ivybridge, Sandybridge or
> Haswell?
> >> _______________________________________________
> >> [email protected] mailing list
> >> https://lists.freebsd.org/mailman/listinfo/freebsd-x11
> >> To unsubscribe, send any mail to "[email protected]"
> >>
> >
> > Hello,
> >
> > As far  as I know the t510 had a first gen core i-series cpu. My t510
> with
> > a core i7 did not have a integrated gpu, but the i5 did. I think it might
> > have something like:
> >
> https://ark.intel.com/products/49653/Intel-Core-i5-560M-Processor-3M-Cache-2_66-GHz
> >
>
> Thanks! Seems like Arrandale, predecessor to Sandy Bridge.
>
> To OP:
> Can you put
> dev.drm.drm_debug=-1
> in /boot/loader.conf and send a dmesg output? (or /var/crash/core.txt.X)
>
>
>
> One more thing to check is if the correct drm module is loaded. Safest is
> to do
>
> kldload /boot/modules/drm.ko
>
> kldload /boot/modules/i915kms.ko
>
> and with kldstat -v check that the modules are loaded from /boot/modules
> and not /boot/kernel/
>
>
>
> > Best regards
> > Andreas
>
>
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