** Changed in: linux (Ubuntu Questing)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/2115068
Title:
Ubuntu 24.04+ arm64: screen resolution fixed to 1024x768 with last
kernel update
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Noble:
Fix Committed
Status in linux source package in Oracular:
Won't Fix
Status in linux source package in Plucky:
Fix Committed
Status in linux source package in Questing:
Fix Committed
Bug description:
[ Impact ]
Replace FB_HYPERV with DRM_HYPERV
hyperv_fb is a legacy framebuffer driver that lacks support for dynamic
resolution changes and modern graphics stacks.
hyperv_drm, on the other hand, provides full DRM/KMS integration, enabling
proper display management and compatibility with modern graphics stacks.
Disabling hyperv_fb ensures that hyperv_drm binds to the Hyper-V synthetic
video device, avoiding conflicts and regressions in graphical environments.
[ Fix ]
Enable CONFIG_DRM_HYPERV and disable CONFIG_FB_HYPERV.
[ Test Plan ]
Start a Gen2 Ubuntu VM on Hyper-V.
Verify that it is possible to change the resolution of the screen
successfully.
[ Regression Potential ]
Disabling hyperv_fb and relying solely on hyperv_drm may introduce
regressions in environments where DRM/KMS is unavailable. Such
environments are increasingly uncommon, as most modern environments
fully support hyperv_drm.
[ Other Info ]
The transition from FB_HYPERV to DRM_HYPERV already happened in Debian
5.17.
---
Hi,
I have a problem after a kernel update on ubuntu 24.04 arm64. In a few words
up to kernel 6.8.11 everything works well and I can change the screen
resolution. Starting from kernel 6.8.31 (linux-generic), I cannot do it
anymore. I tried manually installing several kernels (for instance
6.8.4-060804-generic) and even linux-generic-hwe (6.11.x).
I did many tests by changing the configuration and following the advice of
the mate community
https://ubuntu-mate.community/t/ubuntu-mate-24-04-screen-resolution-fixed-to-1024x768-with-last-kernel-update/.
However, I came to the conclusions that is something related with ubuntu
(gnome or mate is indifferent).
Indeed, I tried with:
Debian 12.11 with kernel 6.1.x and mate desktop: no problem (expected).
Debian 13 daily build with kernel 6.12.x and mate desktop: no problem.
Fedora 42 workstation with kernel 6.14.x and gnome desktop: no problem.
Ubuntu 24.04 server with kernel 6.8.x and 6.11.x: problem (works only up to
kernel 6.8.11).
Ubuntu 25.04 with kernel 6.14.x and gnome desktop: problem.
I have to mention that my device SoC, Qualcomm Snapdragon 8cx gen 2,
is the only one in the series (gen 1, gen 3 and gen 4
https://bugzilla.kernel.org/show_bug.cgi?id=218512) that is not
supported by the linux kernel. So the only solution I have found to
use my device is to use hyper-v on windows 11 (virtualbox does not
work on arm on windows
https://www.virtualbox.org/manual/topics/Introduction.html#host-guest-
matrix).
Thank you
---
ProblemType: Bug
ApportVersion: 2.28.1-0ubuntu3.7
Architecture: arm64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/seq: test 1846 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: MATE
DistroRelease: Ubuntu 24.04
InstallationDate: Installed on 2024-03-24 (456 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily arm64 (20240324)
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
Lspci:
Lspci-vt:
Lsusb: Error: command ['lsusb'] failed with exit code 1:
Lsusb-t:
Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1:
MachineType: Microsoft Corporation Virtual Machine
Package: linux-meta-hwe-6.11 (not installed)
ProcFB: 0 hyperv_drmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.8.0-11-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 6.8.0-11.11-generic 6.8.0-rc4
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-6.8.0-11-generic N/A
linux-backports-modules-6.8.0-11-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.13
RfKill:
Tags: noble
Uname: Linux 6.8.0-11-generic aarch64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo users
WifiSyslog:
_MarkForUpload: True
dmi.bios.date: 11/21/2024
dmi.bios.release: 4.1
dmi.bios.vendor: Microsoft Corporation
dmi.bios.version: Hyper-V UEFI Release v4.1
dmi.board.asset.tag: None
dmi.board.name: Virtual Machine
dmi.board.vendor: Microsoft Corporation
dmi.board.version: Hyper-V UEFI Release v4.1
dmi.chassis.asset.tag: 2506-9471-9497-6998-6093-8372-56
dmi.chassis.type: 3
dmi.chassis.vendor: Microsoft Corporation
dmi.chassis.version: Hyper-V UEFI Release v4.1
dmi.modalias:
dmi:bvnMicrosoftCorporation:bvrHyper-VUEFIReleasev4.1:bd11/21/2024:br4.1:svnMicrosoftCorporation:pnVirtualMachine:pvrHyper-VUEFIReleasev4.1:rvnMicrosoftCorporation:rnVirtualMachine:rvrHyper-VUEFIReleasev4.1:cvnMicrosoftCorporation:ct3:cvrHyper-VUEFIReleasev4.1:skuNone:
dmi.product.family: Virtual Machine
dmi.product.name: Virtual Machine
dmi.product.sku: None
dmi.product.version: Hyper-V UEFI Release v4.1
dmi.sys.vendor: Microsoft Corporation
---
ProblemType: Bug
ApportVersion: 2.28.1-0ubuntu3.7
Architecture: arm64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/seq: test 1826 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: MATE
DistroRelease: Ubuntu 24.04
InstallationDate: Installed on 2024-03-24 (456 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily arm64 (20240324)
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
Lspci:
Lspci-vt:
Lsusb: Error: command ['lsusb'] failed with exit code 1:
Lsusb-t:
Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1:
MachineType: Microsoft Corporation Virtual Machine
Package: linux-meta-hwe-6.11 (not installed)
ProcFB: 0 hyperv_fb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.8.0-62-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 6.8.0-62.65-generic 6.8.12
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-6.8.0-62-generic N/A
linux-backports-modules-6.8.0-62-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.13
RfKill:
Tags: noble
Uname: Linux 6.8.0-62-generic aarch64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo users
WifiSyslog:
_MarkForUpload: True
dmi.bios.date: 11/21/2024
dmi.bios.release: 4.1
dmi.bios.vendor: Microsoft Corporation
dmi.bios.version: Hyper-V UEFI Release v4.1
dmi.board.asset.tag: None
dmi.board.name: Virtual Machine
dmi.board.vendor: Microsoft Corporation
dmi.board.version: Hyper-V UEFI Release v4.1
dmi.chassis.asset.tag: 2506-9471-9497-6998-6093-8372-56
dmi.chassis.type: 3
dmi.chassis.vendor: Microsoft Corporation
dmi.chassis.version: Hyper-V UEFI Release v4.1
dmi.modalias:
dmi:bvnMicrosoftCorporation:bvrHyper-VUEFIReleasev4.1:bd11/21/2024:br4.1:svnMicrosoftCorporation:pnVirtualMachine:pvrHyper-VUEFIReleasev4.1:rvnMicrosoftCorporation:rnVirtualMachine:rvrHyper-VUEFIReleasev4.1:cvnMicrosoftCorporation:ct3:cvrHyper-VUEFIReleasev4.1:skuNone:
dmi.product.family: Virtual Machine
dmi.product.name: Virtual Machine
dmi.product.sku: None
dmi.product.version: Hyper-V UEFI Release v4.1
dmi.sys.vendor: Microsoft Corporation
---
ProblemType: Bug
ApportVersion: 2.28.1-0ubuntu3.7
Architecture: arm64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/seq: test 1827 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: MATE
DistroRelease: Ubuntu 24.04
InstallationDate: Installed on 2024-03-24 (456 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily arm64 (20240324)
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
Lspci:
Lspci-vt:
Lsusb: Error: command ['lsusb'] failed with exit code 1:
Lsusb-t:
Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1:
MachineType: Microsoft Corporation Virtual Machine
Package: linux-meta-hwe-6.11 (not installed)
ProcFB: 0 hyperv_fb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.11.0-26-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 6.11.0-26.26~24.04.1-generic 6.11.11
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-6.11.0-26-generic N/A
linux-backports-modules-6.11.0-26-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.13
RfKill:
Tags: noble
Uname: Linux 6.11.0-26-generic aarch64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo users
WifiSyslog:
_MarkForUpload: True
dmi.bios.date: 11/21/2024
dmi.bios.release: 4.1
dmi.bios.vendor: Microsoft Corporation
dmi.bios.version: Hyper-V UEFI Release v4.1
dmi.board.asset.tag: None
dmi.board.name: Virtual Machine
dmi.board.vendor: Microsoft Corporation
dmi.board.version: Hyper-V UEFI Release v4.1
dmi.chassis.asset.tag: 2506-9471-9497-6998-6093-8372-56
dmi.chassis.type: 3
dmi.chassis.vendor: Microsoft Corporation
dmi.chassis.version: Hyper-V UEFI Release v4.1
dmi.modalias:
dmi:bvnMicrosoftCorporation:bvrHyper-VUEFIReleasev4.1:bd11/21/2024:br4.1:svnMicrosoftCorporation:pnVirtualMachine:pvrHyper-VUEFIReleasev4.1:rvnMicrosoftCorporation:rnVirtualMachine:rvrHyper-VUEFIReleasev4.1:cvnMicrosoftCorporation:ct3:cvrHyper-VUEFIReleasev4.1:skuNone:
dmi.product.family: Virtual Machine
dmi.product.name: Virtual Machine
dmi.product.sku: None
dmi.product.version: Hyper-V UEFI Release v4.1
dmi.sys.vendor: Microsoft Corporation
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