> But building a new kernel and switching to it without deeper experience and a fallback would be too hard for me.
No need to build a new kernel. There are binaries in the link that was posted above. You can grab some of those to try. Just note that you need to turn off secure boot if you have it enabled because they're not signed. This is an important debugging step as it helps to identify if it's already fixed in a newer kernel and it's a backport effort for a fix or if it's still an upstream issue. If it's still an upstream issue it should be reported to the developers of the driver. > pci bus timeout, check dma status Maybe it's an issue with the DMA implementation of the wireless driver. You can experiment with the IOMMMU disabled (amd_iommu=off) to see if that changes anything. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2077920 Title: [RTL8821CE] awful performance Status in linux package in Ubuntu: New Bug description: In most application there is "not responding" window displayed. Firefox, Google Chrome, Google Remote Desktopm (=Chrome). In Google Remote Desktop the sound is transfered in a "okish" delay. The display of the remote machine is delayed by about 2-5 seconds. The laptop is connected by wifi, the remote machine is connected by lan cable. The problem also occur if the laptop is used in the same network about 2-3 meters away. There seems to be a driver issue. If graphic, "chipset", ram or harddisk: I dont know. The machine is very old but is quad core with 4 gb of ram. There SHOULD be a better performance. I used a dual core about 3-4 years ago and the performance was similar to this laptop now. ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: xorg 1:7.7+23ubuntu3 ProcVersionSignature: Ubuntu 6.8.0-41.41-generic 6.8.12 Uname: Linux 6.8.0-41-generic x86_64 ApportVersion: 2.28.1-0ubuntu3.1 Architecture: amd64 BootLog: Error: [Errno 13] Keine Berechtigung: '/var/log/boot.log' CasperMD5CheckResult: pass CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Tue Aug 27 05:28:35 2024 DistUpgraded: 2024-05-10 01:30:53,777 DEBUG migrateToDeb822Sources() DistroCodename: noble DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Stoney [Radeon R2/R3/R4/R5 Graphics] [1002:98e4] (rev d4) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Stoney [Radeon R2/R3/R4/R5 Graphics] [103c:84d0] InstallationDate: Installed on 2023-08-26 (366 days ago) InstallationMedia: Ubuntu 23.04 "Lunar Lobster" - Release amd64 (20230418) MachineType: HP HP Laptop 17-ca0xxx ProcEnviron: LANG=de_DE.UTF-8 PATH=(custom, no user) SHELL=/bin/bash XDG_RUNTIME_DIR=<set> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-41-generic root=UUID=23ccbdb2-528b-483e-9b2f-bd788ab9318a ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to noble on 2024-05-09 (109 days ago) dmi.bios.date: 11/27/2023 dmi.bios.release: 15.66 dmi.bios.vendor: AMI dmi.bios.version: F.66 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 84D0 dmi.board.vendor: HP dmi.board.version: 90.48 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.ec.firmware.release: 90.48 dmi.modalias: dmi:bvnAMI:bvrF.66:bd11/27/2023:br15.66:efr90.48:svnHP:pnHPLaptop17-ca0xxx:pvr:rvnHP:rn84D0:rvr90.48:cvnHP:ct10:cvrChassisVersion:sku5CU45EA#ABD: dmi.product.family: 103C_5335KV HP Notebook dmi.product.name: HP Laptop 17-ca0xxx dmi.product.sku: 5CU45EA#ABD dmi.sys.vendor: HP version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.120-2build1 version.libgl1-mesa-dri: libgl1-mesa-dri 24.0.9-0ubuntu0.1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:21.1.12-1ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1build1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1build1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2077920/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp