AMDGPU and AMD Ryzen 7 2700U

[95A31]

I am trying to install Arch Linux on HP ENVY x360 13m-ag0002dx:

- AMD Ryzen 7 2700U
- 8 GB DDR4
- AMD Radeon RX Vega 10 Graphics (Integrated)
- 256 GB PCIe NVMe M.2 SSD

On Arch Wiki same family laptop look like fine (i.e. https://wiki.archlinux.org/index.php/HP … _13z-ag000, https://wiki.archlinux.org/index.php/HP … 5-bq102ng) but to install Arch I need set nomodeset as kernel parameter othewise I get stucked on a black screen.

I managed to install Arch and xf86-video-amdgpu by nomodeset workaround but if I disable it I still stuck at black screen after Grub. What I can do?

[agd5f]

Some boards seem to have buggy ACPI tables related to ivrs. See:

https://bugzilla.kernel.org/show_bug.cgi?id=200087

for possible workarounds. I don't think windows uses interrupt remapping so it doesn't run into the issue. You also might try an updated bios if one is available for your board.

[chithanh]

About buggy IVRS issue, try intremap=off kernel parameter and if that works, see if you can find the offending PCI device and then set ivrs_ioapic[32]=x:y.z (replace with actual device address) instead of intremap=off.

You may need more tinkering with the kernel though.
If you experience hang in idle, try disabling C6 state or use RCU_NOCB_CPU: https://bugzilla.kernel.org/show_bug.cgi?id=196683
Touchscreen requires kernel patch: https://bugzilla.kernel.org/show_bug.cgi?id=198715

Also, additional problems are reported if you dual boot Ryzen laptops with Windows: Booting into Windows first and then rebooting into Linux may cause more (ACPI related) things to break.

[95A31]

Solved using kernel 4.19-rc3. Now the system is running good, but I still have some ACPI errors:

[ 2.509055] ACPI Error: Field [D128] at bit offset/length 128/1024 exceeds size of target Buffer (160 bits) (20180810/dsopcode-201)
[ 2.509139] ACPI Error: Method parse/execution failed \HWMC, AE_AML_BUFFER_LIMIT (20180810/psparse-516)
[ 2.509276] ACPI Error: Method parse/execution failed \_SB.WMID.WMAA, AE_AML_BUFFER_LIMIT (20180810/psparse-516)
[ 2.509414] ACPI Error: Field [D128] at bit offset/length 128/1024 exceeds size of target Buffer (160 bits) (20180810/dsopcode-201)
[ 2.509474] ACPI Error: Method parse/execution failed \HWMC, AE_AML_BUFFER_LIMIT (20180810/psparse-516)
[ 2.509513] ACPI Error: Method parse/execution failed \_SB.WMID.WMAA, AE_AML_BUFFER_LIMIT (20180810/psparse-516)
[ 2.509637] ACPI Error: Field [D128] at bit offset/length 128/1024 exceeds size of target Buffer (160 bits) (20180810/dsopcode-201)
[ 2.509687] ACPI Error: Method parse/execution failed \HWMC, AE_AML_BUFFER_LIMIT (20180810/psparse-516)
[ 2.509728] ACPI Error: Method parse/execution failed \_SB.WMID.WMAA, AE_AML_BUFFER_LIMIT (20180810/psparse-516)
[ 2.510224] ACPI Error: Field [D128] at bit offset/length 128/1024 exceeds size of target Buffer (160 bits) (20180810/dsopcode-201)
[ 2.510286] ACPI Error: Method parse/execution failed \HWMC, AE_AML_BUFFER_LIMIT (20180810/psparse-516)
[ 2.510338] ACPI Error: Method parse/execution failed \_SB.WMID.WMAA, AE_AML_BUFFER_LIMIT (20180810/psparse-516)
[ 2.510451] ACPI Error: Field [D128] at bit offset/length 128/1024 exceeds size of target Buffer (160 bits) (20180810/dsopcode-201)
[ 2.510497] ACPI Error: Method parse/execution failed \HWMC, AE_AML_BUFFER_LIMIT (20180810/psparse-516)
[ 2.510536] ACPI Error: Method parse/execution failed \_SB.WMID.WMAA, AE_AML_BUFFER_LIMIT (20180810/psparse-516)

and this amdgpu error:

[ 3.074327] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector ObjectID from Adapter Service for connector index:1! type 0 expected 3
[ 3.074392] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector ObjectID from Adapter Service for connector index:2! type 0 expected 3

Full dmesg here: https://pastebin.com/86HWaaAc