I can confirm that downgrade to bios 1.13 definitively solves freezing
problem (was drastic on 1.18) and also grub slowness. After revert to
1.13, everything is now super stable.
Firmware downgrade, though, is not straightforward, here is procedure
https://community.acer.com/en/discussion/599232/
This seems to be finally fixed by 1.15 firmware on Acer A315 41G.
Everything works, can boot without kernel params, suspend and function
keys works and powertop is down to ~7W idle (used to be ~14w) with 3+
hours of battery time.
GRUB is slow, but it is just a minor annoyance.
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You received t
After some more testing I found that these params are enough for me to
boot properly on A315-41G, bios 1.13, ubuntu 18.04, kernel 4.18, uefi,
secure boot:
"mem_encrypt=off ivrs_ioapic[4]=00:14.0 ivrs_ioapic[5]=00:00.2
rcu_nocbs=0-7 idle=nomwait acpi_enforce_resources=lax"
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You received this bu
... 4.18 hwe kernel with hwe stack on ubuntu 18.04
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-firmware in Ubuntu.
https://bugs.launchpad.net/bugs/1776563
Title:
Acer Aspire A315 IOAPIC failure on Ubuntu 18.04, kernel hangs, c
I haven't been able to boot with no params with 1.13. bios, but now I
can make it work with:
"text radeon.modeset=0 amdgpu.runpm=0 mem_encrypt=off
ivrs_ioapic[4]=00:14.0 ivrs_ioapic[5]=00:00.2 rcu_nocbs=0-7 idle=nomwait
acpi_enforce_resources=lax"
With these params everything works fine - gpu, su
Yes, I tried:
"text ivrs_ioapic[4]=00:14.0 ivrs_ioapic[5]=00:00.2 radeon.modeset=0
amdgpu.runpm=0"
"text ivrs_ioapic[4]=00:14.0 ivrs_ioapic[5]=00:00.2 clocksource=hpet
iommu=on amd_iommu=on amdgpu.dc=1"
"idle=nomwait iommu=pt amd_iommu=on rcu_nocbs=0-7 pcie-aspm=off
ivrs_ioapic[4]=00:14.0 ivrs_i
I can't make gpu and suspend work at the same time on Acer A315 41G R6IM
with Ryzen 2500U and Radeon 535.
If I use pci=noacpi gpu works fine, but laptop hangs on suspend, if I
use ivrs_ioapic... suspend works fine but with no 2d gpu acceleration -
everything works sluggish, very high cpu on scroli
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