Graphics, networking, audio & suspend work without troubleshooting
Recommended 16 GB RAM 52 are possible
Keyboard can be connected via PS/2 in case of desktops
Readily available to be purchased (including pre-owned)
Multiple community members have confirmed the above (machines that were included in a previous release version of this list need only one good report to be re-included)
Also the list is structured in a make/model/CPU way. So let’s have a look:
i7-8650U reported twice, once for R4.1 and once for R4.0, both positive, but mentions having to detach the second USB controller from sys-usb for suspend to work
i7-8850U reported by one user positively for both R4.0 and R4.1
i5-8250U reported once for R4.1 as partial because of suspend issues
i5-8350U reported twice for R4.0, one of them as partial and reporting various issues / workarounds.
R4.0 is EOL so the only reason I mention it here is that if I had overlooked a valid case for inclusion in the R4.0 list this could count to weaken the two reports requirement for the R4.1 list.
We only have one R4.1 report not mentioning any issues / workaround. But we also do not have any R4.1 report for the T480 from you … so why don’t we start there: please submit a report and let’s see how that changes the above summary.
That sound great, can you point me to those “other users” / their posts for further investigation?
It’s true that it takes 20-30 sec to return from suspend, but I also have a T490 running Windows 11 and it also takes the T490 a long time to return from sleep, I’ve not had to reset sys-net or sys-usb.
Maybe it would make sense to make a thread just to compare experiences with the model, me saying it works doesn’t do anyone any good if I’m the minority.
That’s what the thread you linked is for. Also, these reports are snapshots over time. It is entirely conceivable that with the latest R4.1 install media the T480 is ready to go on the “just works” list.
Next steps:
get your HCL report and see what CPU your T480 has
identify other community members who have the same model/CPU
ask them how their experience with R4.1 install was / if the criteria are fulfilled
Thank you @renehoj for your report, which is online now!
I have moved our posts into this thread. So you are using the i5-8250U like @SoPunny.
I think we are close if we can clarify whether there are suspend issues or not. What’s the difference between “Deep Suspend” and “Idle Suspend”? Has anything changed in the last few weeks – @SoPunny?
I’ve spent most of the evening testing the suspend function, and I can’t reproduce the situation where it takes a long time to wake up.
Reconfiguring the thunderbolt port can result in pci devices being added/removed, which means you manually need to update the sys-usb device list.
Enabling hyper-threading adds a 5-10 sec delay on waking up the system, but it doesn’t add the really long delay. This seems similar to how suspend works on my Windows system.
With sys-usb/thunderbolt correctly configured and hyper-threading disabled, it takes ~2 sec to wake up the system.
Sadly, I didn’t check the logs when I experienced the slow wake-up, I think some software/OS error happened during the wake-up, and the long delay is a software timeout.
Tomorrow I’ll try and get a dock and see if using the thunderbolt port makes suspend fail.
For the community recommended list it is critical that a PC works “out of the box” using just the installer and no other instructions or workarounds. Would you say that’s the case with your T480?
I haven’t found any bios settings that prevent you from using Qubes, but I need a dock to test if the thunderbolt port actually works, hopefully I can do this today.
I tried reinstalling Qubes with a couple different Thunderbolt settings, and they all worked “out of the box” with sys-usb being created during installation.
If after installing Qubes you go into the bios and change the thunderbolt configuration, it reconfigures the pci devices and this can result in an unknown or missing device in the sys-usb device list. I assume this is considered outside the standard installation.
As I said earlier, everything seems to work fine and I only get visual glitches by having my cursor at certain height.
Maybe there’s something more precise I could test out. Tell me more if that’s the case.
Idle suspend works as intended when I just shut my laptop. I wait for about 10 seconds to be able to enter my password. I’m using it with i3, and I think i3-settings-qubes comes with xss-lock. I think. It doesn’t show any password characters but a circle that turns green whenever I press a key.
When I enter cat /sys/power/state, I get freeze mem. Freeze means suspend-to-idle and mem means suspend-to-memory.
The freeze option, when set, will initiate a lightweight software-based-only sleep state for your system. The Linux user space will be frozen (hence the term) and all I/O devices will be put into a low power state. Whilst this option and state is always supported, and does limit energy uses, it is the most light form of halting your machine. If no other options are available to you, this may still save on the electricity bills, though not as much as shutting down the system.
The mem option, when set, will initiate either a Suspend-To-Idle, which is identical to the freeze option, or do a Suspend-To-RAM, where it everything in the system is put into a low-power state except for the memory. Which option is used (Suspend-To-Idle or Suspend-To-RAM) depends on the setting of the /sys/power/mem_sleep file. You can examine the various modes of this file by simply executing cat /sys/power/mem_sleep at the terminal command line.
In other news, both of my charging ports finally stopped working, and I’m using the official Lenovo charger for it. It stopped charging with certain outlets and then stopped for any of them. I also tried another USB-C laptop charger and it didn’t work. If you’re getting a used Thinkpad laptop, be careful about the release date. Don’t get one that could have had the bad Thunderbolt firmware for a while. I updated my firmware soon after I got it. It’s a shame because I was finally starting to like my computer and Qubes setup.
… so why don’t we start there: please submit a report and let’s see how that changes the above summary.