I have a problem of BIOS corruption and I’ve had to reset it twice within the space of 1 month. So I’m going to try to update it (Acer has an update but it’s windows only so I’ll have to flash it), but before I attempt this risky action, I am checking microcode as recommended in the arch file
The output from
$ dmesg | grep microcode
[ 0.000000] microcode: microcode updated early to revision 0x28, date = 2017-11-17 [ 0.000000] Intel Spectre v2 broken microcode detected; disabling Speculation Control [ 0.695879] microcode: sig=0x306d4, pf=0x40, revision=0x28 [ 0.696023] microcode: Microcode Update Driver: v2.01 <firstname.lastname@example.org>, Peter Oruba
Does this mean that there is a microcode error? I read something about Linus going mad at Intel for screwing up Spectre but I don’t know if this is related.
I checked this link
and got this
intel-microcode (3.20180108.1+really20171117.1) unstable; urgency=critical * Revert to release 20171117, as per Intel instructions issued to the public in 2018-01-22 (closes: #886998) * This effectively removes IBRS/IBPB/STIPB microcode support for Spectre variant 2 mitigation. -- Henrique de Moraes Holschuh <email@example.com> Mon, 22 Jan 2018 23:01:59 -0200 intel-microcode (3.20180108.1) unstable; urgency=high * New upstream microcode data file 20180108 (closes: #886367) + Updated Microcodes: sig 0x000306d4, pf_mask 0xc0, 2017-11-17, rev 0x0028, size 18432
I understand from the link that my microcode is the latest one but could it have errors causing the BIOS issues or would that be unrelated? If it’s related, what can I do about it?
and this is my system information
System: Kernel: 4.9.86-1-MANJARO x86_64 bits: 64 gcc: 7.3.0 Desktop: Xfce 4.12.4 (Gtk 2.24.31) Distro: Manjaro Linux Machine: Device: laptop System: Acer product: Aspire E5-573G v: V3.72 serial: N/A Mobo: Acer model: ZORO_BH v: Type2 - A01 Board Version serial: N/A UEFI [Legacy]: Insyde v: V1.15 date: 05/27/2015 Battery BAT1: charge: 33.1 Wh 100.0% condition: 33.1/37.0 Wh (90%) model: SANYO AL15A32 status: Full CPU: Dual core Intel Core i7-5500U (-MT-MCP-) arch: Broadwell rev.4 cache: 4096 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 9580 clock speeds: max: 3000 MHz 1: 2400 MHz 2: 2512 MHz 3: 2400 MHz 4
and this is the Acer BIOS update site - my computer is for Windows8
Thank you very much