On 3/20/21 10:26 AM, Kevin Oberman wrote:
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 c
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.
Thank for the links to the bug reports, it would appear to be the same
issue. I tested my wife's X1 Carbon Gen 3 and it worked fine. Perhaps a
bios bug with the processor in my 4th gen.
CPU: Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz (2808.11-MHz K8-class CPU)
In the 24 hours I tested 13.0, I also had some X windows failures while
waking up from suspend which never happens with 12.2. Oh well, no worries.
--
Kevin Oberman, Part time kid herder and retired Network Engineer
E-mail: rkober...@gmail.com
PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
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