I am having a similar problem when using the amd igpu.
portavales@tamborim:~$ uname -a Linux tamborim 6.14.0-15-generic #15-Ubuntu SMP PREEMPT_DYNAMIC Sun Apr 6 15:05:05 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux portavales@tamborim:~$ lsmod | grep -E "nvidia|amdgpu|i915" nvidia_uvm 2113536 0 nvidia_drm 131072 5 nvidia_modeset 1724416 2 nvidia_drm nvidia 11628544 14 nvidia_uvm,nvidia_modeset amdgpu 19763200 29 amdxcp 12288 1 amdgpu drm_panel_backlight_quirks 12288 1 amdgpu drm_buddy 24576 1 amdgpu drm_ttm_helper 16384 3 amdgpu,nvidia_drm ttm 118784 2 amdgpu,drm_ttm_helper drm_exec 12288 1 amdgpu drm_suballoc_helper 16384 1 amdgpu drm_display_helper 282624 1 amdgpu cec 94208 2 drm_display_helper,amdgpu i2c_algo_bit 20480 1 amdgpu gpu_sched 61440 2 amdxdna,amdgpu video 77824 4 asus_wmi,amdgpu,asus_nb_wmi,nvidia_modeset portavales@tamborim:~$ sudo lshw -C display *-display description: VGA compatible controller product: AD107M [GeForce RTX 4050 Max-Q / Mobile] vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:c4:00.0 logical name: /dev/fb0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom fb configuration: depth=32 driver=nvidia latency=0 mode=2880x1800 visual=truecolor xres=2880 yres=1800 resources: iomemory:780-77f iomemory:7a0-79f irq:177 memory:dc000000-dcffffff memory:7800000000-79ffffffff memory:7a00000000-7a01ffffff ioport:f000(size=128) memory:dd000000-dd07ffff *-display description: Display controller product: Strix [Radeon 880M / 890M] vendor: Advanced Micro Devices, Inc. [AMD/ATI] physical id: 0 bus info: pci@0000:c5:00.0 logical name: /dev/fb0 version: c1 width: 64 bits clock: 33MHz capabilities: pm pciexpress msi msix bus_master cap_list fb configuration: depth=32 driver=amdgpu latency=0 resolution=2880,1800 resources: iomemory:7a0-79f irq:150 memory:7a10000000-7a1fffffff memory:dd200000-dd3fffff ioport:e000(size=256) memory:dd700000-dd77ffff portavales@tamborim:~$ ^C portavales@tamborim:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 25.04 Release: 25.04 Codename: plucky portavales@tamborim:~$ c5:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Strix [Radeon 880M / 890M] [1002:150e] (rev c1) portavales@tamborim:~$ sudo dmesg | grep amd [sudo] password for portavales: [ 0.000000] Linux version 6.14.0-15-generic (buildd@lcy02-amd64-022) (x86_64-linux-gnu-gcc-14 (Ubuntu 14.2.0-19ubuntu2) 14.2.0, GNU ld (GNU Binutils for Ubuntu) 2.44) #15-Ubuntu SMP PREEMPT_DYNAMIC Sun Apr 6 15:05:05 UTC 2025 (Ubuntu 6.14.0-15.15-generic 6.14.0) [ 0.365617] perf/amd_iommu: Detected AMD IOMMU #0 (2 banks, 4 counters/bank). [ 1.948429] amd_pstate: the _CPC object is not present in SBIOS or ACPI disabled [ 2.526800] pcie_mp2_amd 0000:c5:00.7: enabling device (0000 -> 0002) [ 5.515956] amd-tee driver initialization successful [ 5.538023] amdxdna 0000:c6:00.1: enabling device (0000 -> 0002) [ 5.607490] tee tee0: Direct firmware load for /amdtee/f29bb3d9-bd66-5441-afb88acc2b2b60d6.bin failed with error -2 [ 5.607500] failed to load firmware /amdtee/f29bb3d9-bd66-5441-afb88acc2b2b60d6.bin [ 5.611073] amd-pmf AMDI0103:00: Failed to open TA session (-12) [ 5.612855] amd-pmf AMDI0103:00: registered PMF device successfully [ 5.688499] [drm] Initialized amdxdna_accel_driver 0.0.0 for 0000:c6:00.1 on minor 0 [ 6.755184] [drm] amdgpu kernel modesetting enabled. [ 6.755243] amdgpu: vga_switcheroo: detected switching method \_SB_.PCI0.GPPA.VGA_.ATPX handle [ 6.755646] amdgpu: ATPX version 1, functions 0x00000801 [ 6.755793] amdgpu: ATPX Hybrid Graphics [ 6.770726] amdgpu: Virtual CRAT table created for CPU [ 6.770749] amdgpu: Topology: Add CPU node [ 6.770930] amdgpu 0000:c5:00.0: enabling device (0006 -> 0007) [ 6.774406] amdgpu 0000:c5:00.0: amdgpu: detected ip block number 12 <isp_ip> [ 6.774417] amdgpu 0000:c5:00.0: amdgpu: Fetched VBIOS from VFCT [ 6.774424] amdgpu: ATOM BIOS: 113-STRIXEMU-001 [ 6.791757] amdgpu 0000:c5:00.0: amdgpu: VPE: collaborate mode false [ 6.791808] amdgpu 0000:c5:00.0: amdgpu: [drm] Optional firmware "amdgpu/isp_4_1_0.bin" was not found [ 6.830078] amdgpu 0000:c5:00.0: amdgpu: Trusted Memory Zone (TMZ) feature disabled as experimental (default) [ 6.830131] amdgpu 0000:c5:00.0: amdgpu: VRAM: 512M 0x0000008000000000 - 0x000000801FFFFFFF (512M used) [ 6.830133] amdgpu 0000:c5:00.0: amdgpu: GART: 512M 0x00007FFF00000000 - 0x00007FFF1FFFFFFF [ 6.830274] [drm] amdgpu: 512M of VRAM memory ready [ 6.830276] [drm] amdgpu: 15598M of GTT memory ready. [ 6.854053] amdgpu 0000:c5:00.0: amdgpu: reserve 0x8900000 from 0x8010000000 for PSP TMR [ 7.047226] amdgpu 0000:c5:00.0: amdgpu: RAS: optional ras ta ucode is not available [ 7.050800] amdgpu 0000:c5:00.0: amdgpu: RAP: optional rap ta ucode is not available [ 7.050801] amdgpu 0000:c5:00.0: amdgpu: SECUREDISPLAY: securedisplay ta ucode is not available [ 7.072581] amdgpu 0000:c5:00.0: amdgpu: SMU is initialized successfully! [ 7.095382] snd_hda_intel 0000:c5:00.1: bound 0000:c5:00.0 (ops amdgpu_dm_audio_component_bind_ops [amdgpu]) [ 7.165966] kfd kfd: amdgpu: Allocated 3969056 bytes on gart [ 7.165978] kfd kfd: amdgpu: Total number of KFD nodes to be created: 1 [ 7.166882] amdgpu: Virtual CRAT table created for GPU [ 7.167825] amdgpu: Topology: Add dGPU node [0x150e:0x1002] [ 7.167827] kfd kfd: amdgpu: added device 1002:150e [ 7.167835] amdgpu 0000:c5:00.0: amdgpu: SE 1, SH per SE 2, CU per SH 8, active_cu_number 16 [ 7.172842] [drm] Initialized amdgpu 3.61.0 for 0000:c5:00.0 on minor 1 [ 7.790010] hid-sensor-hub 0020:1022:0001.000C: hidraw10: SENSOR HUB HID v0.00 Device [hid-amdsfh 1022:0001] on pcie_mp2_amd [ 7.790303] hid-sensor-hub 0020:1022:0001.000D: hidraw11: SENSOR HUB HID v0.00 Device [hid-amdsfh 1022:0001] on pcie_mp2_amd [ 8.214180] amdgpu 0000:c5:00.0: [drm] fb0: amdgpudrmfb frame buffer device [61066.926477] workqueue: dm_irq_work_func [amdgpu] hogged CPU for >13333us 4 times, consider switching to WQ_UNBOUND [61086.227562] workqueue: dm_irq_work_func [amdgpu] hogged CPU for >13333us 5 times, consider switching to WQ_UNBOUND -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-amdgpu in Ubuntu. https://bugs.launchpad.net/bugs/2093268 Title: Main screen becomes sluggish after wake up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe-6.8/+bug/2093268/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp