Hello brqd,   Thank you for your replies. I've checked screenshot with TPM Advanced Settings, all parameters are correct nothind needs to be changed.   I'm sorry that performed troubleshooting steps didn't help to resolve an issue. I've just checked Ubuntu Server 20.04 LTS for Dell EMC PowerEdge Servers Release Notes and found this on page 11 (Known issues):   NVIDIA out-of-box driver fails to load when system has NVIDIA GPGPUs on Ubuntu 20.04   [URL]   Workaround: Pass pci=realloc=off kernel parameter.   Thanks,
Hello,  I'm trying to configure Ubuntu 20.04 LTS Dell Poweredge R750 with accelerator NVIDIA A100 80GB PCIe. I'm using drivers provided by NVIDIA and certified for this server. Unfortunately NVIDIA driver crashes during the system startup. According to documentation both Ubuntu 20.04 system and NVIDIA A100 should be compatible with the server. I'm using server: Dell Inc. PowerEdge R750/06V45N, BIOS 1.4.4 10/07/2021 Should I change something in BIOS configuration or download some special driver from Dell?   Below parts of dmesg log: [ 1.910999] pci 0000:ca:00.0: BAR 8: no space for [mem size 0x1400000000 64bit pref][ 1.911001] pci 0000:ca:00.0: BAR 8: failed to assign [mem size 0x1400000000 64bit pref][ 1.911004] pci 0000:ca:00.0: BAR 10: no space for [mem size 0x28000000 64bit pref][ 1.911006] pci 0000:ca:00.0: BAR 10: failed to assign [mem size 0x28000000 64bit pref][ 1.911008] pci 0000:ca:00.0: BAR 7: no space for [mem size 0x00500000][ 1.911009] pci 0000:ca:00.0: BAR 7: failed to assign [mem size 0x00500000] [ ...later more similar information. When system tries to load nvidia drivers: ] [ 19.732655] BUG: kernel NULL pointer dereference, address: 0000000000000228[ 19.739101] #PF: supervisor write access in kernel mode[ 19.745161] #PF: error_code(0x0002) - not-present page[ 19.752704] PGD 10e066067 P4D 10e067067 PUD 1129ac067 PMD 0[ 19.760671] Oops: 0002 [#1] SMP NOPTI[ 19.768071] CPU: 10 PID: 1638 Comm: nvidia-persiste Tainted: P OE 5.11.0-27-generic #29~20.04.1-Ubuntu[ 19.775043] Hardware name: Dell Inc. PowerEdge R750/06V45N, BIOS 1.4.4 10/07/2021[ 19.775044] RIP: 0010:_nv029611rm+0xa0/0xd0 [nvidia][ 19.787895] Code: 83 c3 01 44 89 ee 48 8b 47 70 e8 0b bc 54 e8 48 83 fb 07 75 bd 48 83 c4 08 44 89 f0 5b 41 5c 41 5d 41 5e 48 83 c5 10 c3 66 90 <48> 89 34 25 28 02 00 00 0f 0b 66 0f 1f 44 00 00 be 00 00 2c 02 bf[ 19.787898] RSP: 0018:ff53ca538b0c3950 EFLAGS: 00010246[ 19.787900] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffc33a10b0\ [ ...and the rest of dump]
NVIDIA A100 in Dell Poweredge R750 with Ubuntu 20.04