Comment 0 for bug 2033327

Hardware:

- Desktop PC (Intel i5 4th gen)
- GPU: AMD RX580
- Ubuntu 22.04 with kernel HWE 6.2

Steps to reproduce:

1. Start the device
2. Suspend
3. Resume by pressing a key on the keyboard

Expected results:

The screen lights up, showing the screen to put my password to resume the session.

Actual result:

The screen OSD displays a "No Signal" message before turning off. Nothing seems to happen when I press keyboard keys or move the mouse.

Switching to a TTY by pressing Ctrl+Alt+F3 works: I can login and see the logs (that's how I filed this bug).

Switching back to graphics session (Ctrl+Alt+F2) does't work: it shows the cursor and nothing else (black screen).

Switching to login screen (Ctrl+Alt+F1) works: I can see the list of users, select on and enter my password... but then I'm back to the same black screen with the mouse cursor.

This is not a regression, as the same problem happened already with the previous point release (I believe it was Linux kernel 5.15).

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-6.2.0-26-generic 6.2.0-26.26~22.04.1
ProcVersionSignature: Ubuntu 6.2.0-26.26~22.04.1-generic 6.2.13
Uname: Linux 6.2.0-26-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: pass
Date: Tue Aug 29 09:15:49 2023
InstallationDate: Installed on 2022-12-28 (243 days ago)
InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1)
SourcePackage: linux-signed-hwe-6.2
UpgradeStatus: No upgrade log present (probably fresh install)