siyia, you have exactly the same laptop model as I have, they should
work. You do something wrong. Maybe you use an incorrect grub or kernel
parameter.
this a section of my /boot/grub/grub.cfg. Yours should look like this.
### BEGIN /etc/grub.d/40_custom_proxy ###
menuentry "Ubuntu" --class ubuntu --class gnu-linux --class gnu --class os
$menuentry_id_option 'gnulinux-simple-0986d268-5f46-4555-9214-1d9dffa79286' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
acpi /boot/amls/ssdt10.aml
acpi /boot/amls/ssdt11.aml
acpi /boot/amls/ssdt13.aml
acpi /boot/amls/ssdt14.aml
acpi /boot/amls/ssdt1.aml
acpi /boot/amls/ssdt2.aml
acpi /boot/amls/ssdt3.aml
acpi /boot/amls/ssdt4.aml
acpi /boot/amls/ssdt5.aml
acpi /boot/amls/ssdt6.aml
acpi /boot/amls/ssdt8.aml
acpi /boot/amls/ssdt9.aml
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2
--hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2
0986d268-5f46-4555-9214-1d9dffa79286
else
search --no-floppy --fs-uuid --set=root
0986d268-5f46-4555-9214-1d9dffa79286
fi
linux /boot/vmlinuz-4.18.0-10-generic
root=UUID=0986d268-5f46-4555-9214-1d9dffa79286 ro ivrs_ioapic[4]=00:14.0
ivrs_ioapic[5]=0:00.2 quiet splash $vt_handoff
initrd /boot/initrd.img-4.18.0-10-generic
Additional kernel parameters aren't needed. Don't change iommu settings or
anything else. Iommu should be enabled in bios menu.
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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, can't
load, kernel freeze (AMD Ryzen 5/Radeon/Raven) / AMDGPU Hybrid crash
Status in amd:
Fix Released
Status in Linux:
Incomplete
Status in linux package in Ubuntu:
Triaged
Status in linux-firmware package in Ubuntu:
Confirmed
Bug description:
CPU: Ryzen 5 2500U
VGA: Radeon 535
Notebook: Acer Aspire A315
This is a brand new notebook on the market with Ryzen 5/Radeon.
The default kernel of Ubuntu(18.04) hangs at loading with message:
tsc: Refined TSC clocksource calibration: 1996.250 MHz
clocksource: tsc: mask: 0xffffffffffffffff max_cycles: (...), max_idle_ns:
(...)
Soft lockup
Using pci=noacpi kernel parameter kernel loads without any problem but
my notebook produces more heat than on Win10. If I know right Acer
notebooks need ACPI to the correct power management.
The same thing happens on mainline 4.17,4.18rc1-2.
BIOS upgrade to the latest version: 1.08 hasn't helped
This problem has been reported upstream:
https://bugzilla.kernel.org/show_bug.cgi?id=200087
The latest correctly working kernel was 4.13.* but the heat problem
was present with this too.
To manage notifications about this bug go to:
https://bugs.launchpad.net/amd/+bug/1776563/+subscriptions
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