Lenovo Thinkpad T580

[solworth...@gtempaccount.com]

I've installed Qubes 4.0 on a Lenovo T580, using a legacy (non UEFI) install.

The BIOS version is 1.18. I enabled "Thunderbolt BIOS Assist Mode" and made
sure the boot mode was "Quick". (There was a very nasty bug which would brick
the T580 on older bioses, when boot mode was "Diagnostic". See:

https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/Thinkpad-X1-Yoga-3rd-Gen-Stuck-at-Black-Screen-After-Enabling/m-p/4255694/highlight/true#M92166

My BIOS version should not require that, but given the severity of the problem,
I was conservative in my settings.

The computer seems to work with two exceptions:

1. When I boot, I generally do it with an attached thunderbolt screen.
When I do this on the T580, I get a blank screen with cursor on both
the attached and notebook screen. Clicking with the mouse makes the
normal login screen visible and usable.

2. Suspend does not work for me. (Unlike the X1 carbon, the BIOS does not
appear to have a Linux power setting).

The first issue is no big deal, but it would really be great to know how to
fix the second.

thanks,
Jon

[solworth...@gtempaccount.com]

Well suspend seems to be working after all, but it works differently than the T570. For one, wakes up much faster. Also, previous Qubes HCL report was that it didn't work.

I'm curious why the X1 carbon needs a linux mode, but the T580 does not.

Jon