On Sat, Mar 20, 2021 at 8:35 AM Fred via freebsd-stable < freebsd-stable@freebsd.org> wrote:
> On 3/19/21 7:59 PM, Mathias Picker wrote: > > > > Fred Hall via freebsd-stable <freebsd-stable@freebsd.org> writes: > > > >> I have a ThinkPad X1 Carbon Gen 4 (20FCS0NB00) which has happily run > >> FreeBSD 11 and 12, but which can't boot 13.0-RC1 from memstick or via > >> freebsd-update. In both cases the boot process locks up on the line > >> "hwpstate_intel0: <Intel Speed Shift> on cpu0" > >> If running freebsd-update, a work around is to add > >> hint.hwpstate_intel.0.disabled="1" in loader.conf. See the note under > >> the Eighth Generation (2020) in > >> https://wiki.freebsd.org/Laptops/Thinkpad_X1_Carbon > >> I was quite surprised to find the lack of support for hwpstate_intel > >> in 13 when it apparently worked under 11 and 12. Does anyone know the > >> status of hwpstate_intel on ThinkPads? > > > > I’m running 13 -STABLE from 10 days ago on a Thinkpad Yoga 3rd gen, and > > hwpstate_intel works fine, never had a problem. > > > > mathiasp:~% sysctl dev.hwpstate_intel dev.hwpstate_intel.7.epp: 15 > > dev.hwpstate_intel.7.%parent: cpu7 > > dev.hwpstate_intel.7.%pnpinfo: dev.hwpstate_intel.7.%location: > > dev.hwpstate_intel.7.%driver: hwpstate_intel > > dev.hwpstate_intel.7.%desc: Intel Speed Shift > > dev.hwpstate_intel.6.epp: 15 > > dev.hwpstate_intel.6.%parent: cpu6 > > dev.hwpstate_intel.6.%pnpinfo: dev.hwpstate_intel.6.%location: > > dev.hwpstate_intel.6.%driver: hwpstate_intel > > dev.hwpstate_intel.6.%desc: Intel Speed Shift > > [snip] > > > > The gen3 is using > > sudo dmesg|grep -i cpu > > CPU: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz (1992.08-MHz K8-class CPU) > > [snip, snip] > > > > mathiasp:~% uname -a > > FreeBSD Danton 13.0-STABLE FreeBSD 13.0-STABLE #2 > > stable/13-n244845-f21c0366f53: Wed Mar 10 20:53:26 CET 2021 > > root@Danton:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64 > > > > > > Cheers, > > > > Mathias > > Thanks for the feed back. Good to know most people won't encounter the > problem. Perhaps it is a bios issue specific to the model. I did update > to the latest bios version but that made no difference. > > I have chosen to rollback to 12.2 as it works perfectly for me. > > > > >> Cheers, Fred > There are two long tickets about this. Take a look at tickets 248659 <https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248659> and 253288 <https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253288>. This problem appeared in 13-current in Jan 2020 and I first saw it on my new Lenovo L15 that summer. It appears specific to Lenovo laptops. It appears that similar issues have been seen with Linux. -- Kevin Oberman, Part time kid herder and retired Network Engineer E-mail: rkober...@gmail.com PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683 _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
