OK I have started to test it now. My cernel is now: $ uname -a Linux DEM-RSZABO-U20 5.7.0-050700rc7-generic #202005242331 SMP Sun May 24 23:33:19 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
with self compiled and patched nvida driver (the latest driver kernel module with the mainline kernel does not compile without a patch see (https://gitlab.com/snippets/1965550) ): So Now I run Nvidia driver and external monitor over the thunderbolt 3 where also the FireWire interface is running. Nvidia $ nvidia-smi -a ==============NVSMI LOG============== Timestamp : Wed May 27 19:57:17 2020 Driver Version : 440.82 CUDA Version : 10.2 Attached GPUs : 1 GPU 00000000:01:00.0 Product Name : Quadro T2000 Product Brand : Quadro Display Mode : Enabled Display Active : Enabled Persistence Mode : Disabled Accounting Mode : Disabled Accounting Mode Buffer Size : 4000 Driver Model Current : N/A Pending : N/A Serial Number : N/A GPU UUID : GPU-e970a3f0-ccb4-aca2-c0bb-c63d35d10fdc Minor Number : 0 VBIOS Version : 90.17.1A.00.A3 MultiGPU Board : No Board ID : 0x100 GPU Part Number : N/A Inforom Version Image Version : G001.0000.02.04 OEM Object : 1.1 ECC Object : N/A Power Management Object : N/A GPU Operation Mode Current : N/A Pending : N/A GPU Virtualization Mode Virtualization Mode : None Host VGPU Mode : N/A IBMNPU Relaxed Ordering Mode : N/A PCI Bus : 0x01 Device : 0x00 Domain : 0x0000 Device Id : 0x1FB810DE Bus Id : 00000000:01:00.0 Sub System Id : 0x09261028 GPU Link Info PCIe Generation Max : 3 Current : 1 Link Width Max : 16x Current : 16x Bridge Chip Type : N/A Firmware : N/A Replays Since Reset : 0 Replay Number Rollovers : 0 Tx Throughput : 1000 KB/s Rx Throughput : 6000 KB/s Fan Speed : N/A Performance State : P8 Clocks Throttle Reasons Idle : Active Applications Clocks Setting : Not Active SW Power Cap : Not Active HW Slowdown : Not Active HW Thermal Slowdown : Not Active HW Power Brake Slowdown : Not Active Sync Boost : Not Active SW Thermal Slowdown : Not Active Display Clock Setting : Not Active FB Memory Usage Total : 3911 MiB Used : 976 MiB Free : 2935 MiB BAR1 Memory Usage Total : 256 MiB Used : 7 MiB Free : 249 MiB Compute Mode : Default Utilization Gpu : 2 % Memory : 12 % Encoder : 0 % Decoder : 0 % Encoder Stats Active Sessions : 0 Average FPS : 0 Average Latency : 0 FBC Stats Active Sessions : 0 Average FPS : 0 Average Latency : 0 Ecc Mode Current : N/A Pending : N/A ECC Errors Volatile SRAM Correctable : N/A SRAM Uncorrectable : N/A DRAM Correctable : N/A DRAM Uncorrectable : N/A Aggregate SRAM Correctable : N/A SRAM Uncorrectable : N/A DRAM Correctable : N/A DRAM Uncorrectable : N/A Retired Pages Single Bit ECC : N/A Double Bit ECC : N/A Pending Page Blacklist : N/A Temperature GPU Current Temp : 48 C GPU Shutdown Temp : 98 C GPU Slowdown Temp : 93 C GPU Max Operating Temp : 87 C Memory Current Temp : N/A Memory Max Operating Temp : N/A Power Readings Power Management : N/A Power Draw : 4.12 W Power Limit : N/A Default Power Limit : N/A Enforced Power Limit : N/A Min Power Limit : N/A Max Power Limit : N/A Clocks Graphics : 300 MHz SM : 300 MHz Memory : 405 MHz Video : 540 MHz Applications Clocks Graphics : 1575 MHz Memory : 4001 MHz Default Applications Clocks Graphics : 1575 MHz Memory : 4001 MHz Max Clocks Graphics : 2100 MHz SM : 2100 MHz Memory : 4001 MHz Video : 1950 MHz Max Customer Boost Clocks Graphics : N/A Clock Policy Auto Boost : N/A Auto Boost Default : N/A Processes Process ID : 1489 Type : G Name : /usr/lib/xorg/Xorg Used GPU Memory : 141 MiB Process ID : 2236 Type : G Name : /usr/lib/xorg/Xorg Used GPU Memory : 383 MiB Process ID : 2447 Type : G Name : /usr/bin/gnome-shell Used GPU Memory : 221 MiB Process ID : 2930 Type : G Name : /usr/share/skypeforlinux/skypeforlinux --type=gpu-process --field-trial-handle=11031610151995791585,8538431210028618818,131072 --disable-features=PictureInPicture,SpareRendererForSitePerProcess --gpu-preferences=KAAAAAAAAAAgAAAgAAAAAAAAYAAAAAAAEAAAAAAAAAAAAAAAAAAAAAgAAAAAAAAA --service-request-channel-token=10971760252379018322 Used GPU Memory : 107 MiB Process ID : 3330 Type : G Name : /usr/share/teams/teams --type=gpu-process --enable-features=SharedArrayBuffer --disable-features=SpareRendererForSitePerProcess --gpu-preferences=KAAAAAAAAACAAABAAQAAAAAAAAAAAGAAAAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --service-request-channel-token=3435244427162261716 Used GPU Memory : 108 MiB -- 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/1880835 Title: pulse audio hangs in kernel call Status in linux package in Ubuntu: Incomplete Bug description: there is no audio device accessible any more and pulse-audio process can not be terminated in kernel log there is such a output: This makes the complete audio unstable in the laptop. I think it is started to happen when I installed Nvidia driver and there is an external monitor attached with DP audio device. [ 364.150644] INFO: task pulseaudio:2183 blocked for more than 120 seconds. [ 364.150646] Tainted: P OE 5.4.0-31-generic #35-Ubuntu [ 364.150647] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 364.150647] pulseaudio D 0 2183 2175 0x00004120 [ 364.150649] Call Trace: [ 364.150653] __schedule+0x2e3/0x740 [ 364.150655] ? dma_pte_clear_level+0x142/0x190 [ 364.150655] schedule+0x42/0xb0 [ 364.150656] schedule_timeout+0x203/0x2f0 [ 364.150657] wait_for_completion+0xb1/0x120 [ 364.150659] ? wake_up_q+0x70/0x70 [ 364.150663] fw_run_transaction+0xdc/0x110 [firewire_core] [ 364.150665] ? fw_core_handle_bus_reset+0x440/0x440 [firewire_core] [ 364.150666] ? free_iova_fast+0x18/0x30 [ 364.150667] ? close_transaction+0x110/0x110 [firewire_core] [ 364.150668] ? intel_unmap+0xd9/0x1c0 [ 364.150670] ? transmit_phy_packet_callback+0x20/0x20 [firewire_core] [ 364.150671] snd_fw_transaction+0xbc/0x110 [snd_firewire_lib] [ 364.150673] ? avc_general_get_plug_info+0x100/0x100 [snd_firewire_lib] [ 364.150674] pcr_modify+0x65/0x100 [snd_firewire_lib] [ 364.150675] cmp_connection_break+0x37/0x50 [snd_firewire_lib] [ 364.150677] snd_oxfw_stream_start_duplex+0x1ee/0x2e0 [snd_oxfw] [ 364.150678] ? wait_woken+0x80/0x80 [ 364.150679] pcm_capture_prepare+0x26/0x50 [snd_oxfw] [ 364.150682] snd_pcm_do_prepare+0x1e/0x30 [snd_pcm] [ 364.150684] snd_pcm_action_single+0x3c/0x80 [snd_pcm] [ 364.150686] snd_pcm_action_nonatomic+0x6e/0x80 [snd_pcm] [ 364.150687] snd_pcm_prepare+0x6a/0x90 [snd_pcm] [ 364.150689] snd_pcm_common_ioctl+0x28c/0xc00 [snd_pcm] [ 364.150691] snd_pcm_ioctl+0x27/0x40 [snd_pcm] [ 364.150692] do_vfs_ioctl+0x407/0x670 [ 364.150694] ? __secure_computing+0x42/0xe0 [ 364.150694] ksys_ioctl+0x67/0x90 [ 364.150695] __x64_sys_ioctl+0x1a/0x20 [ 364.150697] do_syscall_64+0x57/0x190 [ 364.150698] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 364.150699] RIP: 0033:0x7f0bbfa1a37b [ 364.150701] Code: Bad RIP value. [ 364.150701] RSP: 002b:00007ffed915d308 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 364.150702] RAX: ffffffffffffffda RBX: 00005607c7b63de0 RCX: 00007f0bbfa1a37b [ 364.150703] RDX: 0000000000000000 RSI: 0000000000004140 RDI: 000000000000006e [ 364.150703] RBP: 00005607c7b63bb0 R08: 0000000000000000 R09: 0000000000001000 [ 364.150703] R10: 0000000000000004 R11: 0000000000000202 R12: 00005607c7b63de0 [ 364.150704] R13: 00007ffed915d6f0 R14: 0000000000000000 R15: 00007ffed915d480 ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-31-generic 5.4.0-31.35 ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34 Uname: Linux 5.4.0-31-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed May 27 10:07:13 2020 InstallationDate: Installed on 2020-02-22 (94 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200220) MachineType: Dell Inc. Precision 7540 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-31-generic root=UUID=7a5890f6-2724-480a-8fa7-778d07cd929d ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Daemon not responding. RelatedPackageVersions: linux-restricted-modules-5.4.0-31-generic N/A linux-backports-modules-5.4.0-31-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/12/2020 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.8.2 dmi.board.name: 0T2FXT dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.8.2:bd03/12/2020:svnDellInc.:pnPrecision7540:pvr:rvnDellInc.:rn0T2FXT:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: Precision dmi.product.name: Precision 7540 dmi.product.sku: 0926 dmi.sys.vendor: Dell Inc. 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