I'm testing the mainline 5.10-rc2 kernel on my Lenovo Ideapad Flex 5 14" (AMD Ryzen 5 4500U). There have been bugs in Linux support for changing the screen brightness even in the stock Ubuntu kernels. There are still bugs in -rc2, but I also noticed a stack trace in dmesg, so I thought I would let you-all know. The first trace occurred during suspend (another system feature that worked very poorly in stock kernels but seems to be working on 5.10-rc2). Then there's another trace that occurs during resume from suspend. FYI. John Gilmore [ 219.330914] ------------[ cut here ]------------ [ 219.331095] WARNING: CPU: 0 PID: 3397 at drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:2548 dc_link_set_backlight_level+0x92/0xf0 [amdgpu] [ 219.331097] Modules linked in: rpcsec_gss_krb5 nfsv4 nfs nfs_ssc fscache ccm ip6table_filter ip6_tables iptable_filter bpfilter bnep uvcvideo btusb btrtl videobuf2_vmalloc btbcm videobuf2_memops btintel videobuf2_v4l2 videobuf2_common bluetooth videodev ecdh_generic mc ecc snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core rtw88_8822ce snd_hwdep rtw88_8822c snd_pcm input_leds rtw88_pci snd_seq_midi snd_seq_midi_event rtw88_core snd_rawmidi edac_mce_amd snd_seq kvm_amd mac80211 nls_iso8859_1 kvm snd_seq_device snd_timer snd joydev ucsi_acpi hid_multitouch serio_raw rapl cfg80211 typec_ucsi typec efi_pstore wmi_bmof ccp k10temp snd_rn_pci_acp3x soundcore libarc4 snd_pci_acp3x soc_button_array ideapad_laptop sparse_keymap mac_hid sch_fq_codel nfsd parport_pc ppdev auth_rpcgss lp nfs_acl lockd grace parport sunrpc ip_tables x_tables autofs4 dm_crypt dm_mirror dm_region_hash dm_log wacom usbhid hid_gene ric [ 219.331154] amdgpu rtsx_pci_sdmmc iommu_v2 gpu_sched i2c_algo_bit ttm crct10dif_pclmul drm_kms_helper crc32_pclmul syscopyarea sysfillrect sysimgblt fb_sys_fops ghash_clmulni_intel cec aesni_intel crypto_simd cryptd rc_core glue_helper drm nvme xhci_pci xhci_pci_renesas ahci libahci i2c_piix4 nvme_core rtsx_pci wmi video i2c_hid hid [ 219.331181] CPU: 0 PID: 3397 Comm: systemd-sleep Not tainted 5.10.0-051000rc2-generic #202011012330 [ 219.331183] Hardware name: LENOVO 81X2/LNVNB161216, BIOS EECN20WW 04/08/2020 [ 219.331352] RIP: 0010:dc_link_set_backlight_level+0x92/0xf0 [amdgpu] [ 219.331355] Code: 70 03 00 00 31 c0 48 8d 96 c0 01 00 00 48 8b 0a 48 85 c9 74 06 4c 3b 61 08 74 22 83 c0 01 48 81 c2 d8 04 00 00 83 f8 06 75 e3 <0f> 0b 45 31 ff 5b 44 89 f8 41 5c 41 5d 41 5e 41 5f 5d c3 48 98 48 [ 219.331357] RSP: 0018:ffffaa7441697c70 EFLAGS: 00010246 [ 219.331359] RAX: 0000000000000006 RBX: ffff985894830000 RCX: 0000000000000000 [ 219.331360] RDX: ffff98588ec61ed0 RSI: ffff98588ec60000 RDI: 0000000000000000 [ 219.331361] RBP: ffffaa7441697c98 R08: 00000000000000ff R09: 0000000000000000 [ 219.331362] R10: 0000000000000000 R11: ffff985880402fea R12: ffff985893d37800 [ 219.331363] R13: 0000000000000000 R14: 000000000000ffff R15: 000000000000ff01 [ 219.331366] FS: 00007f4c9bca7980(0000) GS:ffff985b7f600000(0000) knlGS:0000000000000000 [ 219.331367] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 219.331368] CR2: 00005587f27212f8 CR3: 0000000104a78000 CR4: 0000000000350ef0 [ 219.331370] Call Trace: [ 219.331541] amdgpu_dm_backlight_update_status+0xbb/0xd0 [amdgpu] [ 219.331546] backlight_suspend+0x71/0x80 [ 219.331548] ? brightness_store+0x80/0x80 [ 219.331551] dpm_run_callback+0x50/0x110 [ 219.331553] __device_suspend+0x128/0x3b0 [ 219.331555] dpm_suspend+0xf9/0x220 [ 219.331557] dpm_suspend_start+0x82/0x90 [ 219.331561] suspend_devices_and_enter+0x100/0x230 [ 219.331564] enter_state+0x131/0x184 [ 219.331567] pm_suspend.cold+0x22/0x6d [ 219.331569] state_store+0x2b/0x60 [ 219.331572] kobj_attr_store+0x12/0x20 [ 219.331574] sysfs_kf_write+0x3f/0x50 [ 219.331575] kernfs_fop_write+0xda/0x1b0 [ 219.331579] vfs_write+0xc6/0x230 [ 219.331581] ksys_write+0x67/0xe0 [ 219.331584] __x64_sys_write+0x1a/0x20 [ 219.331586] do_syscall_64+0x38/0x90 [ 219.331589] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 219.331591] RIP: 0033:0x7f4c9cb4e1e7 [ 219.331594] Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 [ 219.331595] RSP: 002b:00007fffe6a7d108 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 219.331597] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f4c9cb4e1e7 [ 219.331597] RDX: 0000000000000004 RSI: 00007fffe6a7d1c0 RDI: 0000000000000004 [ 219.331598] RBP: 00007fffe6a7d1c0 R08: 0000000000000004 R09: 000000000000000d [ 219.331599] R10: 00005587f1f1c128 R11: 0000000000000246 R12: 0000000000000004 [ 219.331600] R13: 00005587f271c2d0 R14: 0000000000000004 R15: 00007f4c9cc298a0 [ 219.331604] CPU: 0 PID: 3397 Comm: systemd-sleep Not tainted 5.10.0-051000rc2-generic #202011012330 [ 219.331605] Hardware name: LENOVO 81X2/LNVNB161216, BIOS EECN20WW 04/08/2020 [ 219.331605] Call Trace: [ 219.331608] show_stack+0x52/0x58 [ 219.331610] dump_stack+0x70/0x8b [ 219.331745] ? dc_link_set_backlight_level+0x92/0xf0 [amdgpu] [ 219.331748] __warn.cold+0x24/0x77 [ 219.331880] ? dc_link_set_backlight_level+0x92/0xf0 [amdgpu] [ 219.331883] report_bug+0xa1/0xc0 [ 219.331885] handle_bug+0x3e/0xa0 [ 219.331886] exc_invalid_op+0x19/0x70 [ 219.331888] asm_exc_invalid_op+0x12/0x20 [ 219.332017] RIP: 0010:dc_link_set_backlight_level+0x92/0xf0 [amdgpu] [ 219.332018] Code: 70 03 00 00 31 c0 48 8d 96 c0 01 00 00 48 8b 0a 48 85 c9 74 06 4c 3b 61 08 74 22 83 c0 01 48 81 c2 d8 04 00 00 83 f8 06 75 e3 <0f> 0b 45 31 ff 5b 44 89 f8 41 5c 41 5d 41 5e 41 5f 5d c3 48 98 48 [ 219.332019] RSP: 0018:ffffaa7441697c70 EFLAGS: 00010246 [ 219.332021] RAX: 0000000000000006 RBX: ffff985894830000 RCX: 0000000000000000 [ 219.332021] RDX: ffff98588ec61ed0 RSI: ffff98588ec60000 RDI: 0000000000000000 [ 219.332022] RBP: ffffaa7441697c98 R08: 00000000000000ff R09: 0000000000000000 [ 219.332023] R10: 0000000000000000 R11: ffff985880402fea R12: ffff985893d37800 [ 219.332024] R13: 0000000000000000 R14: 000000000000ffff R15: 000000000000ff01 [ 219.332164] amdgpu_dm_backlight_update_status+0xbb/0xd0 [amdgpu] [ 219.332166] backlight_suspend+0x71/0x80 [ 219.332168] ? brightness_store+0x80/0x80 [ 219.332170] dpm_run_callback+0x50/0x110 [ 219.332172] __device_suspend+0x128/0x3b0 [ 219.332174] dpm_suspend+0xf9/0x220 [ 219.332176] dpm_suspend_start+0x82/0x90 [ 219.332178] suspend_devices_and_enter+0x100/0x230 [ 219.332180] enter_state+0x131/0x184 [ 219.332182] pm_suspend.cold+0x22/0x6d [ 219.332184] state_store+0x2b/0x60 [ 219.332186] kobj_attr_store+0x12/0x20 [ 219.332187] sysfs_kf_write+0x3f/0x50 [ 219.332189] kernfs_fop_write+0xda/0x1b0 [ 219.332191] vfs_write+0xc6/0x230 [ 219.332194] ksys_write+0x67/0xe0 [ 219.332196] __x64_sys_write+0x1a/0x20 [ 219.332198] do_syscall_64+0x38/0x90 [ 219.332200] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 219.332201] RIP: 0033:0x7f4c9cb4e1e7 [ 219.332203] Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 [ 219.332204] RSP: 002b:00007fffe6a7d108 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 219.332205] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f4c9cb4e1e7 [ 219.332206] RDX: 0000000000000004 RSI: 00007fffe6a7d1c0 RDI: 0000000000000004 [ 219.332207] RBP: 00007fffe6a7d1c0 R08: 0000000000000004 R09: 000000000000000d [ 219.332208] R10: 00005587f1f1c128 R11: 0000000000000246 R12: 0000000000000004 [ 219.332209] R13: 00005587f271c2d0 R14: 0000000000000004 R15: 00007f4c9cc298a0 [ 219.332246] ---[ end trace 41c9461e9d2379e4 ]--- .... [ 220.821873] [drm] reserve 0x400000 from 0xf41f800000 for PSP TMR [ 220.827135] nvme nvme0: 16/0/0 default/read/poll queues [ 221.000075] amdgpu 0000:04:00.0: amdgpu: SMU is resuming... [ 221.000090] amdgpu 0000:04:00.0: amdgpu: smu driver if version = 0x0000000e, smu fw if version = 0x0000000c, smu fw version = 0x00373100 (55.49.0) [ 221.000092] amdgpu 0000:04:00.0: amdgpu: SMU driver if version not matched [ 221.000227] amdgpu 0000:04:00.0: amdgpu: dpm has been disabled [ 221.002287] amdgpu 0000:04:00.0: amdgpu: SMU is resumed successfully! [ 221.003637] [drm] kiq ring mec 2 pipe 1 q 0 [ 221.007091] [drm] DMUB hardware initialized: version=0x00000001 [ 221.041702] usb 1-4: reset high-speed USB device number 2 using xhci_hcd [ 221.042925] rtw_8822ce 0000:02:00.0: start vif ... [ 221.089551] [drm] VCN decode and encode initialized successfully(under DPG Mode). [ 221.089632] [drm] JPEG decode initialized successfully. [ 221.089831] amdgpu 0000:04:00.0: amdgpu: ring gfx uses VM inv eng 0 on hub 0 [ 221.089832] amdgpu 0000:04:00.0: amdgpu: ring comp_1.0.0 uses VM inv eng 1 on hub 0 [ 221.089833] amdgpu 0000:04:00.0: amdgpu: ring comp_1.1.0 uses VM inv eng 4 on hub 0 [ 221.089834] amdgpu 0000:04:00.0: amdgpu: ring comp_1.2.0 uses VM inv eng 5 on hub 0 [ 221.089834] amdgpu 0000:04:00.0: amdgpu: ring comp_1.3.0 uses VM inv eng 6 on hub 0 [ 221.089835] amdgpu 0000:04:00.0: amdgpu: ring comp_1.0.1 uses VM inv eng 7 on hub 0 [ 221.089835] amdgpu 0000:04:00.0: amdgpu: ring comp_1.1.1 uses VM inv eng 8 on hub 0 [ 221.089836] amdgpu 0000:04:00.0: amdgpu: ring comp_1.2.1 uses VM inv eng 9 on hub 0 [ 221.089837] amdgpu 0000:04:00.0: amdgpu: ring comp_1.3.1 uses VM inv eng 10 on hub 0 [ 221.089838] amdgpu 0000:04:00.0: amdgpu: ring kiq_2.1.0 uses VM inv eng 11 on hub 0 [ 221.089838] amdgpu 0000:04:00.0: amdgpu: ring sdma0 uses VM inv eng 0 on hub 1 [ 221.089839] amdgpu 0000:04:00.0: amdgpu: ring vcn_dec uses VM inv eng 1 on hub 1 [ 221.089839] amdgpu 0000:04:00.0: amdgpu: ring vcn_enc0 uses VM inv eng 4 on hub 1 [ 221.089840] amdgpu 0000:04:00.0: amdgpu: ring vcn_enc1 uses VM inv eng 5 on hub 1 [ 221.089841] amdgpu 0000:04:00.0: amdgpu: ring jpeg_dec uses VM inv eng 6 on hub 1 [ 221.092165] usb 3-3: reset high-speed USB device number 2 using xhci_hcd [ 221.120749] ata2: SATA link down (SStatus 0 SControl 300) [ 221.120760] ata1: SATA link down (SStatus 0 SControl 300) [ 221.370120] usb 3-4: reset full-speed USB device number 3 using xhci_hcd [ 221.535187] acpi LNXPOWER:04: Turning OFF [ 221.535205] acpi LNXPOWER:03: Turning OFF [ 221.535221] acpi LNXPOWER:01: Turning OFF [ 221.535272] OOM killer enabled. [ 221.535273] Restarting tasks ... [ 221.535442] pci_bus 0000:01: Allocating resources [ 221.535464] pcieport 0000:00:01.2: bridge window [io 0x1000-0x0fff] to [bus 01] add_size 1000 [ 221.535466] pcieport 0000:00:01.2: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 01] add_size 200000 add_align 100000 [ 221.535486] pcieport 0000:00:01.2: BAR 15: assigned [mem 0x430000000-0x4301fffff 64bit pref] [ 221.535494] pcieport 0000:00:01.2: BAR 13: assigned [io 0x3000-0x3fff] [ 221.536963] done. [ 221.537774] PM: suspend exit [ 221.540640] pci_bus 0000:02: Allocating resources [ 221.540970] pcieport 0000:00:02.2: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 02] add_size 200000 add_align 100000 [ 221.540977] pci_bus 0000:03: Allocating resources [ 221.540993] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000c lmp_ver=0a lmp_subver=8822 [ 221.541007] pcieport 0000:00:02.4: bridge window [io 0x1000-0x0fff] to [bus 03] add_size 1000 [ 221.541010] pcieport 0000:00:02.4: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 03] add_size 200000 add_align 100000 [ 221.541038] pcieport 0000:00:02.2: BAR 15: assigned [mem 0x430200000-0x4303fffff 64bit pref] [ 221.541053] pcieport 0000:00:02.4: BAR 15: assigned [mem 0x430400000-0x4305fffff 64bit pref] [ 221.541061] pcieport 0000:00:02.4: BAR 13: assigned [io 0x4000-0x4fff] [ 221.541400] pci_bus 0000:04: Allocating resources [ 221.541421] pci_bus 0000:05: Allocating resources [ 221.541428] pcieport 0000:00:08.2: bridge window [io 0x1000-0x0fff] to [bus 05] add_size 1000 [ 221.541430] pcieport 0000:00:08.2: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 05] add_size 200000 add_align 100000 [ 221.541450] pcieport 0000:00:08.2: BAR 15: assigned [mem 0x430600000-0x4307fffff 64bit pref] [ 221.541455] pcieport 0000:00:08.2: BAR 13: assigned [io 0x5000-0x5fff] [ 221.542880] ------------[ cut here ]------------ [ 221.543117] WARNING: CPU: 4 PID: 2222 at drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_link_encoder.c:483 dcn10_get_dig_frontend+0x91/0xc0 [amdgpu] [ 221.543122] Modules linked in: rpcsec_gss_krb5 nfsv4 nfs nfs_ssc fscache ccm ip6table_filter ip6_tables iptable_filter bpfilter bnep uvcvideo btusb btrtl videobuf2_vmalloc btbcm videobuf2_memops btintel videobuf2_v4l2 videobuf2_common bluetooth videodev ecdh_generic mc ecc snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core rtw88_8822ce snd_hwdep rtw88_8822c snd_pcm input_leds rtw88_pci snd_seq_midi snd_seq_midi_event rtw88_core snd_rawmidi edac_mce_amd snd_seq kvm_amd mac80211 nls_iso8859_1 kvm snd_seq_device snd_timer snd joydev ucsi_acpi hid_multitouch serio_raw rapl cfg80211 typec_ucsi typec efi_pstore wmi_bmof ccp k10temp snd_rn_pci_acp3x soundcore libarc4 snd_pci_acp3x soc_button_array ideapad_laptop sparse_keymap mac_hid sch_fq_codel nfsd parport_pc ppdev auth_rpcgss lp nfs_acl lockd grace parport sunrpc ip_tables x_tables autofs4 dm_crypt dm_mirror dm_region_hash dm_log wacom usbhid hid_gene ric [ 221.543201] amdgpu rtsx_pci_sdmmc iommu_v2 gpu_sched i2c_algo_bit ttm crct10dif_pclmul drm_kms_helper crc32_pclmul syscopyarea sysfillrect sysimgblt fb_sys_fops ghash_clmulni_intel cec aesni_intel crypto_simd cryptd rc_core glue_helper drm nvme xhci_pci xhci_pci_renesas ahci libahci i2c_piix4 nvme_core rtsx_pci wmi video i2c_hid hid [ 221.543243] CPU: 4 PID: 2222 Comm: Xorg Tainted: G W 5.10.0-051000rc2-generic #202011012330 [ 221.543246] Hardware name: LENOVO 81X2/LNVNB161216, BIOS EECN20WW 04/08/2020 [ 221.543423] RIP: 0010:dcn10_get_dig_frontend+0x91/0xc0 [amdgpu] [ 221.543429] Code: 00 00 75 42 c9 44 89 c0 c3 41 b8 05 00 00 00 83 f8 20 74 e1 41 b8 06 00 00 00 83 f8 40 74 d6 41 b8 04 00 00 00 83 f8 10 74 cb <0f> 0b 41 b8 ff ff ff ff eb c1 45 31 c0 83 f8 01 74 b9 eb ec 41 b8 [ 221.543432] RSP: 0018:ffffaa74425ff820 EFLAGS: 00010297 [ 221.543435] RAX: 0000000000000000 RBX: ffff9859233001b8 RCX: 0000000000000008 [ 221.543437] RDX: 0000000000000000 RSI: 000000000000556f RDI: ffff985893e80000 [ 221.543438] RBP: ffffaa74425ff830 R08: 0000000000000000 R09: 0000000000000001 [ 221.543439] R10: 0000000000fe502a R11: 0000000000000004 R12: 0000000000000000 [ 221.543441] R13: ffff985893d37800 R14: ffff985894830000 R15: ffff985923300000 [ 221.543444] FS: 00007fafb72bba80(0000) GS:ffff985b7f700000(0000) knlGS:0000000000000000 [ 221.543445] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 221.543447] CR2: 00007f924ede6070 CR3: 00000001112ee000 CR4: 0000000000350ee0 [ 221.543448] Call Trace: [ 221.543627] disable_vbios_mode_if_required+0xae/0x160 [amdgpu] [ 221.543888] dc_commit_state_no_check+0x501/0x5b0 [amdgpu] [ 221.544052] dc_commit_state+0x9a/0xc0 [amdgpu] [ 221.544224] amdgpu_dm_atomic_commit_tail+0x557/0x1170 [amdgpu] [ 221.544348] ? amdgpu_bo_move+0xa4/0x2b0 [amdgpu] [ 221.544358] ? ttm_bo_handle_move_mem+0xba/0x4a0 [ttm] [ 221.544366] ? ttm_bo_validate+0x137/0x150 [ttm] [ 221.544372] ? _cond_resched+0x1a/0x50 [ 221.544493] ? amdgpu_bo_pin_restricted+0x64/0x2c0 [amdgpu] [ 221.544500] ? ttm_bo_move_to_lru_tail+0x17/0x1a0 [ttm] [ 221.544622] ? amdgpu_bo_gpu_offset+0x6f/0xc0 [amdgpu] [ 221.544789] ? dm_plane_helper_prepare_fb+0x11a/0x250 [amdgpu] [ 221.544796] ? _cond_resched+0x1a/0x50 [ 221.544799] ? __wait_for_common+0x3d/0x150 [ 221.544801] ? __wait_for_common+0x3d/0x150 [ 221.544820] commit_tail+0x99/0x130 [drm_kms_helper] [ 221.544833] drm_atomic_helper_commit+0x123/0x150 [drm_kms_helper] [ 221.544987] amdgpu_dm_atomic_commit+0x11/0x20 [amdgpu] [ 221.545012] drm_atomic_commit+0x4a/0x50 [drm] [ 221.545025] drm_atomic_helper_set_config+0x7c/0xc0 [drm_kms_helper] [ 221.545043] drm_mode_setcrtc+0x20b/0x7e0 [drm] [ 221.545061] ? drm_mode_getcrtc+0x190/0x190 [drm] [ 221.545078] drm_ioctl_kernel+0xae/0xf0 [drm] [ 221.545096] drm_ioctl+0x245/0x400 [drm] [ 221.545112] ? drm_mode_getcrtc+0x190/0x190 [drm] [ 221.545206] amdgpu_drm_ioctl+0x4e/0x80 [amdgpu] [ 221.545211] __x64_sys_ioctl+0x91/0xc0 [ 221.545214] do_syscall_64+0x38/0x90 [ 221.545217] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 221.545219] RIP: 0033:0x7fafb761b50b [ 221.545222] Code: 0f 1e fa 48 8b 05 85 39 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 55 39 0d 00 f7 d8 64 89 01 48 [ 221.545223] RSP: 002b:00007ffcc4129ac8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 221.545225] RAX: ffffffffffffffda RBX: 00007ffcc4129b00 RCX: 00007fafb761b50b [ 221.545226] RDX: 00007ffcc4129b00 RSI: 00000000c06864a2 RDI: 000000000000000c [ 221.545228] RBP: 00000000c06864a2 R08: 0000000000000000 R09: 0000555e011da2f0 [ 221.545229] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 221.545230] R13: 000000000000000c R14: 0000555e00abde10 R15: 0000000000000000 [ 221.545234] CPU: 4 PID: 2222 Comm: Xorg Tainted: G W 5.10.0-051000rc2-generic #202011012330 [ 221.545235] Hardware name: LENOVO 81X2/LNVNB161216, BIOS EECN20WW 04/08/2020 [ 221.545236] Call Trace: [ 221.545240] show_stack+0x52/0x58 [ 221.545244] dump_stack+0x70/0x8b [ 221.545378] ? dcn10_get_dig_frontend+0x91/0xc0 [amdgpu] [ 221.545383] __warn.cold+0x24/0x77 [ 221.545515] ? dcn10_get_dig_frontend+0x91/0xc0 [amdgpu] [ 221.545519] report_bug+0xa1/0xc0 [ 221.545521] handle_bug+0x3e/0xa0 [ 221.545522] exc_invalid_op+0x19/0x70 [ 221.545526] asm_exc_invalid_op+0x12/0x20 [ 221.545654] RIP: 0010:dcn10_get_dig_frontend+0x91/0xc0 [amdgpu] [ 221.545656] Code: 00 00 75 42 c9 44 89 c0 c3 41 b8 05 00 00 00 83 f8 20 74 e1 41 b8 06 00 00 00 83 f8 40 74 d6 41 b8 04 00 00 00 83 f8 10 74 cb <0f> 0b 41 b8 ff ff ff ff eb c1 45 31 c0 83 f8 01 74 b9 eb ec 41 b8 [ 221.545658] RSP: 0018:ffffaa74425ff820 EFLAGS: 00010297 [ 221.545659] RAX: 0000000000000000 RBX: ffff9859233001b8 RCX: 0000000000000008 [ 221.545660] RDX: 0000000000000000 RSI: 000000000000556f RDI: ffff985893e80000 [ 221.545661] RBP: ffffaa74425ff830 R08: 0000000000000000 R09: 0000000000000001 [ 221.545663] R10: 0000000000fe502a R11: 0000000000000004 R12: 0000000000000000 [ 221.545665] R13: ffff985893d37800 R14: ffff985894830000 R15: ffff985923300000 [ 221.545793] disable_vbios_mode_if_required+0xae/0x160 [amdgpu] [ 221.545920] dc_commit_state_no_check+0x501/0x5b0 [amdgpu] [ 221.546045] dc_commit_state+0x9a/0xc0 [amdgpu] [ 221.546177] amdgpu_dm_atomic_commit_tail+0x557/0x1170 [amdgpu] [ 221.546274] ? amdgpu_bo_move+0xa4/0x2b0 [amdgpu] [ 221.546281] ? ttm_bo_handle_move_mem+0xba/0x4a0 [ttm] [ 221.546286] ? ttm_bo_validate+0x137/0x150 [ttm] [ 221.546291] ? _cond_resched+0x1a/0x50 [ 221.546385] ? amdgpu_bo_pin_restricted+0x64/0x2c0 [amdgpu] [ 221.546391] ? ttm_bo_move_to_lru_tail+0x17/0x1a0 [ttm] [ 221.546485] ? amdgpu_bo_gpu_offset+0x6f/0xc0 [amdgpu] [ 221.546616] ? dm_plane_helper_prepare_fb+0x11a/0x250 [amdgpu] [ 221.546619] ? _cond_resched+0x1a/0x50 [ 221.546620] ? __wait_for_common+0x3d/0x150 [ 221.546622] ? __wait_for_common+0x3d/0x150 [ 221.546635] commit_tail+0x99/0x130 [drm_kms_helper] [ 221.546647] drm_atomic_helper_commit+0x123/0x150 [drm_kms_helper] [ 221.546776] amdgpu_dm_atomic_commit+0x11/0x20 [amdgpu] [ 221.546801] drm_atomic_commit+0x4a/0x50 [drm] [ 221.546814] drm_atomic_helper_set_config+0x7c/0xc0 [drm_kms_helper] [ 221.546832] drm_mode_setcrtc+0x20b/0x7e0 [drm] [ 221.546850] ? drm_mode_getcrtc+0x190/0x190 [drm] [ 221.546867] drm_ioctl_kernel+0xae/0xf0 [drm] [ 221.546887] drm_ioctl+0x245/0x400 [drm] [ 221.546903] ? drm_mode_getcrtc+0x190/0x190 [drm] [ 221.546997] amdgpu_drm_ioctl+0x4e/0x80 [amdgpu] [ 221.547003] __x64_sys_ioctl+0x91/0xc0 [ 221.547005] do_syscall_64+0x38/0x90 [ 221.547008] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 221.547011] RIP: 0033:0x7fafb761b50b [ 221.547013] Code: 0f 1e fa 48 8b 05 85 39 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 55 39 0d 00 f7 d8 64 89 01 48 [ 221.547015] RSP: 002b:00007ffcc4129ac8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 221.547018] RAX: ffffffffffffffda RBX: 00007ffcc4129b00 RCX: 00007fafb761b50b [ 221.547019] RDX: 00007ffcc4129b00 RSI: 00000000c06864a2 RDI: 000000000000000c [ 221.547020] RBP: 00000000c06864a2 R08: 0000000000000000 R09: 0000555e011da2f0 [ 221.547021] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 221.547022] R13: 000000000000000c R14: 0000555e00abde10 R15: 0000000000000000 [ 221.547025] ---[ end trace 41c9461e9d2379e6 ]--- _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
