[Bug 1922439] Status changed to Confirmed

This change was made by a bot.

** Changed in: linux (Ubuntu)
Status: New => Confirmed

** Tags added: groovy

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https://bugs.launchpad.net/bugs/1922439

Title:
X hangs after wake on Mobility Radeon x1400

Status in linux package in Ubuntu:
Confirmed

Bug description:
I have a Dell Inspiron 6400 with Mobility Radeon x1400. In Ubuntu
20.10 and earlier, wake from sleep worked properly. In Ubuntu 21.04, X
does not work after wake from sleep. It fails in Plasma, Xfce, Openbox
and Twm. With both Plasma and Xfce the screen is totally black. In all
cases it is possible to use Control+Alt+F2 to go to a text console and
use that. Generally it is possible to kill and restart X to get a
usable GUI again.

I'm reporting this as a kernel bug because if I boot Ubuntu 21.04 with
linux-image-5.8.0-48-generic from Ubuntu 20.10, then X works after
wake from sleep.

ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: linux-image-5.11.0-13-generic 5.11.0-13.14
ProcVersionSignature: Ubuntu 5.11.0-13.14-generic 5.11.7
Uname: Linux 5.11.0-13-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.11-0ubuntu61
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: bgjenero 1095 F.... pulseaudio
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Sat Apr 3 12:20:38 2021
HibernationDevice: RESUME=UUID=2d7284cc-d0df-45d7-b0a1-e5a0a8128eb8
InstallationDate: Installed on 2012-01-19 (3362 days ago)
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Lsusb-t:
/: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/8p, 480M
MachineType: Dell Inc. MM061
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-13-generic root=UUID=d590f141-7b8d-421d-84b3-baa43181a241 ro resume=/dev/sda5
RelatedPackageVersions:
linux-restricted-modules-5.11.0-13-generic N/A
linux-backports-modules-5.11.0-13-generic N/A
linux-firmware 1.196
SourcePackage: linux
UpgradeStatus: Upgraded to hirsute on 2021-04-02 (1 days ago)
dmi.bios.date: 06/13/2007
dmi.bios.release: 1.7
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A17
dmi.board.name: 0XD720
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.ec.firmware.release: 1.7
dmi.modalias: dmi:bvnDellInc.:bvrA17:bd06/13/2007:br1.7:efr1.7:svnDellInc.:pnMM061:pvr:rvnDellInc.:rn0XD720:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: MM061
dmi.sys.vendor: Dell Inc.

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