I recently bought a ThinkPad T14 Gen 3 Type 21CF. Here's a link to the Lenovo product page: link
Here's what I did:
I have Ubuntu 22.04 installed. I ran:
sudo fwupdmgr update
I did this because my work laptop, an X1 Carbon Gen 9 had an important BIOS/firmware update, so I figured I should update my personal laptop too. This turned out to be a mistake. The below describes new behavior after the update.
The laptop shows more than a dozen:
blacklist: Problem blacklisting hash (-13)
On startup before the Ubuntu login screen is shown. After researching this further it seems to be due to something related to the BIOS/firmware update.
My user-facing symptom is that when the laptop goes into a suspend state, the screen will not turn back on about 80% of the time. This makes closing the lid almost guarantee the need for a reboot. There is a similar effect for the auto suspension of the laptop on battery. It is obvious when the laptop will not exit suspension mode because the power indicator lights next to the power button and on the back of the laptop screen (In the "i" of the ThinkPad logo) remain on and not flashing.
After I noticed this, I wiped my disk and reinstalled Ubuntu 22.04, in case it was some sort of OS issue. The behavior persists after a fresh reinstall.
To remedy this user-facing symptom should I downgrade my BIOS/firmware? What's the safest way to do that?
Is there something I can do within Ubuntu to remedy this issue? What are the troubleshooting steps?
