FYI. I recently added a thunderbolt hub and it's basically working ok but I my log gets spammed with logs like this: adding CRTC not allowed without modesets: requested 0x2, affected 0xf Looking at the list it seems this is a known issue and there's work afoot in this area but I get the impression people that it was seen as features for the future and for improved security and resource management. Not that it was understood to be causing user pain. In this case the screen flickers to black and sometimes parts of it stay black. It seems to be correlated with the log messages. -- greg
Dec 21 19:21:56 hatter kernel: [ 23.775774] i915 0000:00:02.0: [drm] *ERROR* mstb 0000000072522189 port 1: DPCD read on addr 0x4b0 for 1 bytes NAKed Dec 21 19:21:56 hatter kernel: [ 23.784105] i915 0000:00:02.0: [drm] *ERROR* mstb 0000000072522189 port 2: DPCD read on addr 0x4b0 for 1 bytes NAKed Dec 21 19:21:56 hatter kernel: [ 23.791802] i915 0000:00:02.0: [drm] *ERROR* mstb 0000000072522189 port 3: DPCD read on addr 0x4b0 for 1 bytes NAKed Dec 21 19:21:56 hatter kernel: [ 23.900638] logitech-hidpp-device 0003:046D:405E.000A: HID++ 4.5 device connected. Dec 21 19:21:56 hatter kernel: [ 24.246701] ------------[ cut here ]------------ Dec 21 19:21:56 hatter kernel: [ 24.246703] adding CRTC not allowed without modesets: requested 0x2, affected 0xf Dec 21 19:21:56 hatter kernel: [ 24.246769] WARNING: CPU: 0 PID: 1942 at drivers/gpu/drm/drm_atomic.c:1379 drm_atomic_check_only+0x7cd/0x8e0 [drm] Dec 21 19:21:56 hatter kernel: [ 24.246792] Modules linked in: ctr(E) ccm(E) snd_seq_dummy(E) snd_hrtimer(E) snd_seq(E) snd_hda_codec_hdmi(E) rfcomm(E) cmac(E) algif_hash(E) algif_skcipher(E) af_alg(E) bnep(E) mei_hdcp(E) intel_rapl_msr(E) binfmt_misc(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) coretemp(E) kvm_intel(E) snd_sof_pci_intel_tgl(E) kvm(E) snd_sof_intel_hda_common(E) soundwire_intel(E) irqbypass(E) soundwire_generic_allocation(E) iwlmvm(E) intel_cstate(E) soundwire_cadence(E) snd_sof_intel_hda(E) intel_uncore(E) snd_sof_pci(E) snd_sof_xtensa_dsp(E) pcspkr(E) snd_sof(E) mac80211(E) snd_soc_hdac_hda(E) snd_hda_codec_realtek(E) snd_hda_ext_core(E) iTCO_wdt(E) snd_soc_acpi_intel_match(E) intel_pmc_bxt(E) serio_raw(E) efi_pstore(E) iTCO_vendor_support(E) snd_hda_codec_generic(E) wmi_bmof(E) libarc4(E) ee1004(E) snd_soc_acpi(E) watchdog(E) snd_soc_core(E) snd_compress(E) soundwire_bus(E) ledtrig_audio(E) btusb(E) snd_hda_intel(E) iwlwifi(E) btrtl(E) uvcvideo(E) snd_intel_dspcfg(E) btbcm(E) Dec 21 19:21:56 hatter kernel: [ 24.246828] snd_intel_sdw_acpi(E) videobuf2_vmalloc(E) btintel(E) videobuf2_memops(E) snd_hda_codec(E) mei_me(E) videobuf2_v4l2(E) snd_hda_core(E) videobuf2_common(E) cfg80211(E) bluetooth(E) mei(E) hid_multitouch(E) videodev(E) jitterentropy_rng(E) sha512_ssse3(E) sha512_generic(E) snd_usb_audio(E) snd_usbmidi_lib(E) drbg(E) snd_hwdep(E) snd_rawmidi(E) joydev(E) snd_seq_device(E) mc(E) ansi_cprng(E) cdc_ether(E) snd_pcm(E) usbnet(E) nls_ascii(E) hid_sensor_als(E) snd_timer(E) hid_sensor_trigger(E) nls_cp437(E) ecdh_generic(E) hid_sensor_iio_common(E) r8152(E) rfkill(E) industrialio_triggered_buffer(E) snd(E) kfifo_buf(E) vfat(E) fat(E) soundcore(E) sg(E) mii(E) ecc(E) industrialio(E) processor_thermal_device_pci_legacy(E) processor_thermal_device(E) processor_thermal_rfim(E) processor_thermal_mbox(E) ucsi_acpi(E) processor_thermal_rapl(E) intel_rapl_common(E) typec_ucsi(E) intel_soc_dts_iosf(E) roles(E) typec(E) int3403_thermal(E) int340x_thermal_zone(E) ac(E) evdev(E) Dec 21 19:21:56 hatter kernel: [ 24.246850] intel_pmc_core(E) int3400_thermal(E) acpi_thermal_rel(E) acpi_pad(E) msr(E) parport_pc(E) ppdev(E) lp(E) parport(E) fuse(E) configfs(E) efivarfs(E) ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc16(E) mbcache(E) jbd2(E) crc32c_generic(E) hid_logitech_hidpp(E) hid_logitech_dj(E) sd_mod(E) dm_crypt(E) dm_mod(E) usbhid(E) uas(E) usb_storage(E) scsi_mod(E) scsi_common(E) hid_sensor_custom(E) hid_sensor_hub(E) intel_ishtp_hid(E) hid_generic(E) crc32_pclmul(E) crc32c_intel(E) ghash_clmulni_intel(E) i915(E) aesni_intel(E) crypto_simd(E) cryptd(E) xhci_pci(E) i2c_algo_bit(E) psmouse(E) ttm(E) i2c_i801(E) intel_lpss_pci(E) xhci_hcd(E) i2c_smbus(E) intel_lpss(E) nvme(E) intel_ish_ipc(E) idma64(E) usbcore(E) drm_kms_helper(E) intel_ishtp(E) thunderbolt(E) usb_common(E) cec(E) nvme_core(E) t10_pi(E) rc_core(E) crc_t10dif(E) crct10dif_generic(E) i2c_hid_acpi(E) i2c_hid(E) crct10dif_pclmul(E) drm(E) crct10dif_common(E) wmi(E) hid(E) battery(E) button(E) video(E) Dec 21 19:21:56 hatter kernel: [ 24.246883] CPU: 0 PID: 1942 Comm: gnome-shell Tainted: G E 5.16.0-rc5-amd64 #1 Debian 5.16~rc5-1~exp1 Dec 21 19:21:56 hatter kernel: [ 24.246885] Hardware name: Framework Laptop/FRANBMCP06, BIOS 03.02 07/01/2021 Dec 21 19:21:56 hatter kernel: [ 24.246885] RIP: 0010:drm_atomic_check_only+0x7cd/0x8e0 [drm] Dec 21 19:21:56 hatter kernel: [ 24.246897] Code: 46 c0 89 04 24 bf 10 00 00 00 e8 1e bf 00 00 8b 04 24 e9 ac fa ff ff 8b 74 24 14 44 89 e2 48 c7 c7 f0 b0 46 c0 e8 ec cc 8b ce <0f> 0b 31 c0 e9 ae fd ff ff 49 8b 4d 18 41 8b 55 58 bf 10 00 00 00 Dec 21 19:21:56 hatter kernel: [ 24.246898] RSP: 0018:ffffb57ac1f53c58 EFLAGS: 00010282 Dec 21 19:21:56 hatter kernel: [ 24.246901] RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000000 Dec 21 19:21:56 hatter kernel: [ 24.246902] RDX: 0000000000000001 RSI: ffffffff8f54d616 RDI: 00000000ffffffff Dec 21 19:21:56 hatter kernel: [ 24.246902] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffb57ac1f53a88 Dec 21 19:21:56 hatter kernel: [ 24.246903] R10: ffffb57ac1f53a80 R11: ffffffff8fad2468 R12: 000000000000000f Dec 21 19:21:56 hatter kernel: [ 24.246903] R13: 0000000000000008 R14: ffff95888640c000 R15: 0000000000000000 Dec 21 19:21:56 hatter kernel: [ 24.246904] FS: 00007f3e809de3c0(0000) GS:ffff9597efa00000(0000) knlGS:0000000000000000 Dec 21 19:21:56 hatter kernel: [ 24.246905] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Dec 21 19:21:56 hatter kernel: [ 24.246905] CR2: 00007f3e7b973000 CR3: 000000010899c004 CR4: 0000000000770ef0 Dec 21 19:21:56 hatter kernel: [ 24.246906] PKRU: 55555554 Dec 21 19:21:56 hatter kernel: [ 24.246907] Call Trace: Dec 21 19:21:56 hatter kernel: [ 24.246909] <TASK> Dec 21 19:21:56 hatter kernel: [ 24.246910] drm_atomic_nonblocking_commit+0x13/0x50 [drm] Dec 21 19:21:56 hatter kernel: [ 24.246921] drm_mode_atomic_ioctl+0x940/0xaf0 [drm] Dec 21 19:21:56 hatter kernel: [ 24.246933] ? drm_plane_get_damage_clips.cold+0x1c/0x1c [drm] Dec 21 19:21:56 hatter kernel: [ 24.246944] ? drm_atomic_set_property+0xb50/0xb50 [drm] Dec 21 19:21:56 hatter kernel: [ 24.246955] drm_ioctl_kernel+0xae/0x140 [drm] Dec 21 19:21:56 hatter kernel: [ 24.246965] drm_ioctl+0x220/0x3e0 [drm] Dec 21 19:21:56 hatter kernel: [ 24.246975] ? drm_atomic_set_property+0xb50/0xb50 [drm] Dec 21 19:21:56 hatter kernel: [ 24.246986] __x64_sys_ioctl+0x7f/0xb0 Dec 21 19:21:56 hatter kernel: [ 24.246990] do_syscall_64+0x38/0xc0 Dec 21 19:21:56 hatter kernel: [ 24.246992] entry_SYSCALL_64_after_hwframe+0x44/0xae Dec 21 19:21:56 hatter kernel: [ 24.246994] RIP: 0033:0x7f3e863c1867 Dec 21 19:21:56 hatter kernel: [ 24.246995] Code: 3c 1c 48 f7 d8 4c 39 e0 77 b9 e8 24 ff ff ff 85 c0 78 be 4c 89 e0 5b 5d 41 5c c3 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d d1 95 0c 00 f7 d8 64 89 01 48 Dec 21 19:21:56 hatter kernel: [ 24.246996] RSP: 002b:00007ffd8e8fce58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Dec 21 19:21:56 hatter kernel: [ 24.246998] RAX: ffffffffffffffda RBX: 00007ffd8e8fcea0 RCX: 00007f3e863c1867 Dec 21 19:21:56 hatter kernel: [ 24.246998] RDX: 00007ffd8e8fcea0 RSI: 00000000c03864bc RDI: 0000000000000009 Dec 21 19:21:56 hatter kernel: [ 24.246999] RBP: 00000000c03864bc R08: 0000000000000001 R09: 0000000000000001 Dec 21 19:21:56 hatter kernel: [ 24.246999] R10: 0000000000008000 R11: 0000000000000246 R12: 000056491551eb30 Dec 21 19:21:56 hatter kernel: [ 24.247000] R13: 0000000000000009 R14: 0000564915f4b7b0 R15: 0000564916949530 Dec 21 19:21:56 hatter kernel: [ 24.247001] </TASK> Dec 21 19:21:56 hatter kernel: [ 24.247002] ---[ end trace 99bd0e92637a9d24 ]--- Dec 21 19:21:58 hatter kernel: [ 25.793900] ------------[ cut here ]------------ Dec 21 19:21:58 hatter kernel: [ 25.793902] adding CRTC not allowed without modesets: requested 0x2, affected 0xf
