Like Hugo Ferreira, switching to the NVIDIA Server Driver instead of the classic NVIDIA driver finally did the job. Everything I tried before didn't work. So it is finally fixed for me, although I don't know if there are any drawbacks to using the Server driver :)
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1911055 Title: [modeset][nvidia] suspend/resume broken in nvidia-460 : Display engine push buffer channel allocation failed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: After a recent update to nvidia-460, suspend then resume results in a black screen, then a hang for around 120 seconds, and then the text: nvidia-modeset: ERROR: GPU:0: Display engine push buffer channel allocation failed: 0x65 (Call timed out [NV_ERR_TIMEOUT]) nvidia-modeset: ERROR: GPU:0: Failed to allocate display engine core DMA push buffer nvidia-modeset: ERROR: GPU:0: Display engine push buffer channel allocation failed: 0x65 (Call timed out [NV_ERR_TIMEOUT]) nvidia-modeset: ERROR: GPU:0: Failed to allocate display engine core DMA push buffer dmesg shows: [ 188.352670] ACPI: Waking up from system sleep state S3 ... [ 309.142164] nvidia-modeset: ERROR: GPU:0: Display engine push buffer channel allocation failed: 0x65 (Call timed out [NV_ERR_TIMEOUT]) [ 309.142319] nvidia-modeset: ERROR: GPU:0: Failed to allocate display engine core DMA push buffer [ 313.142165] nvidia-modeset: ERROR: GPU:0: Display engine push buffer channel allocation failed: 0x65 (Call timed out [NV_ERR_TIMEOUT]) [ 313.142348] nvidia-modeset: ERROR: GPU:0: Failed to allocate display engine core DMA push buffer [ 313.151885] acpi LNXPOWER:08: Turning OFF [ 313.151898] acpi LNXPOWER:04: Turning OFF [ 313.152351] acpi LNXPOWER:03: Turning OFF [ 313.153064] acpi LNXPOWER:02: Turning OFF ... [ 325.010192] nvidia-modeset: WARNING: GPU:0: Unable to read EDID for display device DELL 2209WA (HDMI-0) [ 325.010577] BUG: kernel NULL pointer dereference, address: 0000000000000050 [ 325.010579] #PF: supervisor read access in kernel mode [ 325.010580] #PF: error_code(0x0000) - not-present page [ 325.010580] PGD 0 P4D 0 [ 325.010582] Oops: 0000 [#1] SMP PTI [ 325.010583] CPU: 9 PID: 2247 Comm: Xorg Tainted: P O 5.4.0-60-generic #67-Ubuntu [ 325.010584] Hardware name: Razer Blade/DANA_MB, BIOS 01.01 08/31/2018 [ 325.010595] RIP: 0010:_nv000112kms+0xd/0x30 [nvidia_modeset] [ 325.010596] Code: 16 00 74 06 83 7e 0c 02 77 03 31 c0 c3 c7 46 0c 01 00 00 00 b8 01 00 00 00 c3 0f 1f 00 0f b7 46 04 0f b7 56 08 39 d0 0f 47 c2 <3b> 47 18 77 06 83 7e 10 02 77 08 31 c0 c3 0f 1f 44 00 00 c7 46 10 [ 325.010597] RSP: 0018:ffffb89542e5b8a8 EFLAGS: 00010246 [ 325.010598] RAX: 0000000000000280 RBX: 0000000000000038 RCX: 00000000000003ff [ 325.010598] RDX: 0000000000000280 RSI: ffffb89542e5bba0 RDI: 0000000000000038 [ 325.010599] RBP: ffffb89542e5b9c8 R08: 0000000000000000 R09: ffffffffc379e440 [ 325.010600] R10: 0000000000000000 R11: 00000000ffffffff R12: ffffb89542e5b948 [ 325.010600] R13: ffffb89542e5b948 R14: ffffb89542e5b930 R15: ffffffffc3a50e60 [ 325.010601] FS: 00007feb4c09ea80(0000) GS:ffff8e46ada40000(0000) knlGS:0000000000000000 [ 325.010602] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 325.010602] CR2: 0000000000000050 CR3: 00000004772e2006 CR4: 00000000003606e0 [ 325.010603] Call Trace: [ 325.010610] ? _nv002768kms+0x96/0xd0 [nvidia_modeset] [ 325.010616] ? _nv002328kms+0xb5/0x110 [nvidia_modeset] [ 325.010624] ? _nv000742kms+0x168/0x370 [nvidia_modeset] [ 325.010823] ? _nv036002rm+0x62/0x70 [nvidia] [ 325.010910] ? os_get_current_tick+0x2c/0x50 [nvidia] [ 325.010921] ? _nv002771kms+0x433/0x600 [nvidia_modeset] [ 325.010928] ? _nv002771kms+0x3fc/0x600 [nvidia_modeset] [ 325.010930] ? __schedule+0x2eb/0x740 [ 325.010935] ? _nv000742kms+0x40/0x40 [nvidia_modeset] [ 325.010939] ? nvkms_alloc+0x6a/0xa0 [nvidia_modeset] [ 325.010944] ? _nv000742kms+0x40/0x40 [nvidia_modeset] [ 325.010948] ? _nv000744kms+0x2a/0x40 [nvidia_modeset] [ 325.010952] ? nvKmsIoctl+0x96/0x1d0 [nvidia_modeset] [ 325.010957] ? nvkms_ioctl_common+0x42/0x80 [nvidia_modeset] [ 325.010961] ? nvkms_ioctl+0xc4/0x100 [nvidia_modeset] [ 325.011016] ? nvidia_frontend_unlocked_ioctl+0x3b/0x50 [nvidia] [ 325.011017] ? do_vfs_ioctl+0x407/0x670 [ 325.011019] ? do_user_addr_fault+0x216/0x450 [ 325.011020] ? ksys_ioctl+0x67/0x90 [ 325.011021] ? __x64_sys_ioctl+0x1a/0x20 [ 325.011023] ? do_syscall_64+0x57/0x190 [ 325.011024] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 325.011025] Modules linked in: rfcomm ccm aufs overlay cmac algif_hash algif_skcipher af_alg bnep snd_sof_pci snd_sof_intel_hda_common nvidia_uvm(O) snd_soc_hdac_hda snd_sof_intel_hda snd_sof_intel_byt snd_sof_intel_ipc snd_sof snd_sof_xtensa_dsp snd_hda_ext_core snd_soc_acpi_intel_match nvidia_drm(PO) snd_soc_acpi nvidia_modeset(PO) snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine nls_iso8859_1 intel_rapl_msr mei_hdcp intel_rapl_common nvidia(PO) x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_usb_audio snd_hda_intel snd_usbmidi_lib iwlmvm snd_intel_dspcfg snd_hda_codec snd_seq_midi kvm_intel snd_seq_midi_event snd_hda_core snd_hwdep mac80211 kvm snd_rawmidi libarc4 snd_pcm rapl intel_cstate snd_seq mxm_wmi dcdbas intel_wmi_thunderbolt wmi_bmof dell_wmi_descriptor snd_seq_device 8250_dw snd_timer iwlwifi uvcvideo btusb videobuf2_vmalloc btrtl videobuf2_memops btbcm btintel videobuf2_v4l2 cfg80211 bluetooth [ 325.011042] videobuf2_common joydev videodev input_leds ecdh_generic mei_me snd mc ecc hid_multitouch mei soundcore intel_pch_thermal mac_hid acpi_pad sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs zstd_compress dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_microsoft ff_memless usbhid hid_generic i915 crct10dif_pclmul crc32_pclmul i2c_algo_bit ghash_clmulni_intel drm_kms_helper aesni_intel syscopyarea sysfillrect sysimgblt nvme crypto_simd fb_sys_fops cryptd glue_helper nvme_core thunderbolt drm i2c_i801 intel_lpss_pci intel_lpss r8169 ahci idma64 i2c_hid realtek libahci virt_dma hid wmi video pinctrl_cannonlake pinctrl_intel [ 325.011059] CR2: 0000000000000050 [ 325.011060] ---[ end trace 95cdb20056e1c4ac ]--- [ 325.011066] RIP: 0010:_nv000112kms+0xd/0x30 [nvidia_modeset] [ 325.011067] Code: 16 00 74 06 83 7e 0c 02 77 03 31 c0 c3 c7 46 0c 01 00 00 00 b8 01 00 00 00 c3 0f 1f 00 0f b7 46 04 0f b7 56 08 39 d0 0f 47 c2 <3b> 47 18 77 06 83 7e 10 02 77 08 31 c0 c3 0f 1f 44 00 00 c7 46 10 [ 325.011067] RSP: 0018:ffffb89542e5b8a8 EFLAGS: 00010246 [ 325.011068] RAX: 0000000000000280 RBX: 0000000000000038 RCX: 00000000000003ff [ 325.011069] RDX: 0000000000000280 RSI: ffffb89542e5bba0 RDI: 0000000000000038 [ 325.011069] RBP: ffffb89542e5b9c8 R08: 0000000000000000 R09: ffffffffc379e440 [ 325.011070] R10: 0000000000000000 R11: 00000000ffffffff R12: ffffb89542e5b948 [ 325.011071] R13: ffffb89542e5b948 R14: ffffb89542e5b930 R15: ffffffffc3a50e60 [ 325.011071] FS: 00007feb4c09ea80(0000) GS:ffff8e46ada40000(0000) knlGS:0000000000000000 [ 325.011072] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 325.011073] CR2: 0000000000000050 CR3: 00000004772e2006 CR4: 00000000003606e0 ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-modules-nvidia-460-5.4.0-60-generic 5.4.0-60.67 ProcVersionSignature: Ubuntu 5.4.0-60.67-generic 5.4.78 Uname: Linux 5.4.0-60-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Jan 11 20:29:31 2021 InstallationDate: Installed on 2020-01-06 (371 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) SourcePackage: linux-restricted-modules UpgradeStatus: Upgraded to focal on 2020-10-09 (94 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-460/+bug/1911055/+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
