Thinkpad T490 HCL report

[drw...@gmail.com]

Hi all,

I recently got access to an T490 and wanted to migrate my Qubes installation to the machine. I can say that the latest rc release for 4.0.2 works ok. Although I had to put the PCIe devices to "no-strict-reset=true" so my sys-net VM would start.

Hope that's useful for someone in the future.

Some tidbits from improving the situation:

First of all, I had trouble with suspend on my t480+qubes until I
disabled Thunderbolt completely in the BIOS. I have no idea why this was
interfering, but since i'm not using it, whatever.

I tried to get the Qubes stable release 4.0.1 to work, but it had really
buggy graphics drivers. After attempting the Qubes Release 4.0.2-rc1,
the graphics are super smooth. You might also have luck with installing
the stable, do the PCIe trick I had to pull off (more on that later) and
install a newer dom0 kernel. But I haven't tried that.

```qvm-pci```

this gives back a list of devices, you'll see some devices added to
sys-net. Perfect! We're going to detach them and then attach them with
an extra option and make that persistent.

qvm-pci detach sys-net dom0:<id1>
qvm-pci detach sys-net dom0:<id2>

qvm-pci-attach --persistent --option no-strict-reset=true sys-net
dom0:<same id1>
qvm-pci-attach --persistent --option no-strict-reset=true sys-net
dom0:<same id2>

After this, start sys-net VM and subsequently the sys-firewall Vm and
everything should work fine.

I also updated to a latest kernel, but it didn't change anything for me,
so it isn't necessary.

sudo qubes-dom0-update
sudo qubes-dom0-update kernel-latest

I noticed that batterylife on the t490 and qubes is super super super
sad. It lasts 2.5 maybe 3 without wifi and low lighting for the display.

The HCL:

---
layout:
  'hcl'
type:
  'notebook'
hvm:
  'yes'
iommu:
  'yes'
slat:
  ''
tpm:
  'unknown'
remap:
  'no'
brand: |
  LENOVO
model: |
  20N3S2MV00
bios: |
  N2IET61W (1.39 )
cpu: |
  Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz
cpu-short: |
  FIXME
chipset: |
  Intel Corporation Device [8086:3e34] (rev 0b)
chipset-short: |
  FIXME
gpu: |
  Intel Corporation Device [8086:3ea0] (prog-if 00 [VGA controller])
gpu-short: |
  FIXME
network: |
  Intel Corporation Device 9df0 (rev 30)
  Intel Corporation Ethernet Connection (6) I219-V (rev 30)
memory: |
  32550
scsi: |

usb: |
  1
versions:

- works:
    'partial'
  qubes: |
    R4.0
  xen: |
    4.8.5-7.fc25
  kernel: |
    5.1.15-1
  remark: |
    dTPM 2.0 doesn't work.
  credit: |
    DrWhax
  link: |
    FIXLINK

---

[Andrew Sorensen]

I also posted about the T490 recently - I saw similar issues with battery life, but only after a suspend/resume cycle - on first boot it’s ok. Battery life in Fedora 30 directly installed is pretty good (at least double, if not more).