Here's driver parameters (should be all defaults): # grep . /sys/module/nvidia*/parameters/* /sys/module/nvidia_drm/parameters/fbdev:N /sys/module/nvidia_drm/parameters/modeset:Y /sys/module/nvidia_modeset/parameters/config_file:(null) /sys/module/nvidia_modeset/parameters/disable_hdmi_frl:N /sys/module/nvidia_modeset/parameters/disable_vrr_memclk_switch:N /sys/module/nvidia_modeset/parameters/fail_malloc:-1 /sys/module/nvidia_modeset/parameters/hdmi_deepcolor:N /sys/module/nvidia_modeset/parameters/malloc_verbose:N /sys/module/nvidia_modeset/parameters/opportunistic_display_sync:Y /sys/module/nvidia_modeset/parameters/output_rounding_fix:Y /sys/module/nvidia_modeset/parameters/vblank_sem_control:N /sys/module/nvidia_uvm/parameters/uvm_ats_mode:1 /sys/module/nvidia_uvm/parameters/uvm_block_cpu_to_cpu_copy_with_ce:0 /sys/module/nvidia_uvm/parameters/uvm_channel_gpfifo_loc:auto /sys/module/nvidia_uvm/parameters/uvm_channel_gpput_loc:auto /sys/module/nvidia_uvm/parameters/uvm_channel_num_gpfifo_entries:1024 /sys/module/nvidia_uvm/parameters/uvm_channel_pushbuffer_loc:auto /sys/module/nvidia_uvm/parameters/uvm_conf_computing_channel_iv_rotation_limit:2147483648 /sys/module/nvidia_uvm/parameters/uvm_cpu_chunk_allocation_sizes:2166784 /sys/module/nvidia_uvm/parameters/uvm_debug_enable_push_acquire_info:0 /sys/module/nvidia_uvm/parameters/uvm_debug_enable_push_desc:0 /sys/module/nvidia_uvm/parameters/uvm_debug_prints:0 /sys/module/nvidia_uvm/parameters/uvm_disable_hmm:N /sys/module/nvidia_uvm/parameters/uvm_downgrade_force_membar_sys:1 /sys/module/nvidia_uvm/parameters/uvm_enable_builtin_tests:0 /sys/module/nvidia_uvm/parameters/uvm_enable_debug_procfs:0 /sys/module/nvidia_uvm/parameters/uvm_enable_va_space_mm:1 /sys/module/nvidia_uvm/parameters/uvm_exp_gpu_cache_peermem:0 /sys/module/nvidia_uvm/parameters/uvm_exp_gpu_cache_sysmem:0 /sys/module/nvidia_uvm/parameters/uvm_fault_force_sysmem:0 /sys/module/nvidia_uvm/parameters/uvm_force_prefetch_fault_support:0 /sys/module/nvidia_uvm/parameters/uvm_global_oversubscription:1 /sys/module/nvidia_uvm/parameters/uvm_leak_checker:0 /sys/module/nvidia_uvm/parameters/uvm_page_table_location:(null) /sys/module/nvidia_uvm/parameters/uvm_peer_copy:phys /sys/module/nvidia_uvm/parameters/uvm_perf_access_counter_batch_count:256 /sys/module/nvidia_uvm/parameters/uvm_perf_access_counter_mimc_migration_enable:-1 /sys/module/nvidia_uvm/parameters/uvm_perf_access_counter_momc_migration_enable:-1 /sys/module/nvidia_uvm/parameters/uvm_perf_access_counter_threshold:256 /sys/module/nvidia_uvm/parameters/uvm_perf_fault_batch_count:256 /sys/module/nvidia_uvm/parameters/uvm_perf_fault_coalesce:1 /sys/module/nvidia_uvm/parameters/uvm_perf_fault_max_batches_per_service:20 /sys/module/nvidia_uvm/parameters/uvm_perf_fault_max_throttle_per_service:5 /sys/module/nvidia_uvm/parameters/uvm_perf_fault_replay_policy:2 /sys/module/nvidia_uvm/parameters/uvm_perf_fault_replay_update_put_ratio:50 /sys/module/nvidia_uvm/parameters/uvm_perf_map_remote_on_eviction:1 /sys/module/nvidia_uvm/parameters/uvm_perf_map_remote_on_native_atomics_fault:0 /sys/module/nvidia_uvm/parameters/uvm_perf_migrate_cpu_preunmap_block_order:2 /sys/module/nvidia_uvm/parameters/uvm_perf_migrate_cpu_preunmap_enable:1 /sys/module/nvidia_uvm/parameters/uvm_perf_pma_batch_nonpinned_order:6 /sys/module/nvidia_uvm/parameters/uvm_perf_prefetch_enable:1 /sys/module/nvidia_uvm/parameters/uvm_perf_prefetch_min_faults:1 /sys/module/nvidia_uvm/parameters/uvm_perf_prefetch_threshold:51 /sys/module/nvidia_uvm/parameters/uvm_perf_reenable_prefetch_faults_lapse_msec:1000 /sys/module/nvidia_uvm/parameters/uvm_perf_thrashing_enable:1 /sys/module/nvidia_uvm/parameters/uvm_perf_thrashing_epoch:2000 /sys/module/nvidia_uvm/parameters/uvm_perf_thrashing_lapse_usec:500 /sys/module/nvidia_uvm/parameters/uvm_perf_thrashing_max_resets:4 /sys/module/nvidia_uvm/parameters/uvm_perf_thrashing_nap:1 /sys/module/nvidia_uvm/parameters/uvm_perf_thrashing_pin:300 /sys/module/nvidia_uvm/parameters/uvm_perf_thrashing_pin_threshold:10 /sys/module/nvidia_uvm/parameters/uvm_perf_thrashing_threshold:3 /sys/module/nvidia_uvm/parameters/uvm_release_asserts:1 /sys/module/nvidia_uvm/parameters/uvm_release_asserts_dump_stack:0 /sys/module/nvidia_uvm/parameters/uvm_release_asserts_set_global_error:0
And I'm using displayport connector in case that makes a difference. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2058824 Title: nvidia-driver-545 (and version 550) randomly hangs with compositing manager on VT change To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-545/+bug/2058824/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
