When the two displays are mirrored the 5.4.0-51-generic kernel has come out
of suspend mode correctly about 10 times without any failures.  I had
trouble earlier with that kernel when the displays were not mirrored.  --
John

On Fri, Oct 16, 2020 at 10:19 AM John Dunlap <email address hidden>
wrote:

> dunlap@lt9:~/Desktop$ uname -a
> Linux lt9 5.4.0-51-generic #56-Ubuntu SMP Mon Oct 5 14:28:49 UTC 2020
> x86_64 x86_64 x86_64 GNU/Linux
> dunlap@lt9:~/Desktop$
>
> The above kernel works better than the oem kernel.  5.4.0-51-generic
> usually (but not always) responds correctly  from a suspend when I press
> the shift key on the laptop to get a login banner.  The oem kernel has
> failed that test three times, never responding correctly.  -- John
>
> On Fri, Oct 16, 2020 at 9:22 AM John Dunlap <email address hidden>
> wrote:
>
>> The oem kernel failed to display both the laptop screen and the external
>> monitor after a suspend.  However the mouse did move the pointer around the
>> laptop screen.  The only solution seemed to be to power cycle.  -- John
>>
>> On Fri, Oct 16, 2020 at 8:32 AM John Dunlap <email address hidden>
>> wrote:
>>
>>> So far so good with the oem kernel.  I should have included in symptoms
>>> that the problem is intermittent. -- John
>>>
>>> On Thu, Oct 15, 2020 at 10:54 PM John Dunlap <email address hidden>
>>> wrote:
>>>
>>>> Koba, Thanks.  Running oem kernel now. Testing in the morning. -- John
>>>>
>>>> On Thu, Oct 15, 2020 at 10:31 PM koba <email address hidden>
>>>> wrote:
>>>>
>>>>> @John
>>>>> #sudo apt update
>>>>> #sudo apt install linux-oem-20.04
>>>>>
>>>>> --
>>>>> You received this bug notification because you are subscribed to the
>>>>> bug
>>>>> report.
>>>>> https://bugs.launchpad.net/bugs/1899882
>>>>>
>>>>> Title:
>>>>>   hdmi monitor on
>>>>>
>>>>> Status in linux package in Ubuntu:
>>>>>   Confirmed
>>>>>
>>>>> Bug description:
>>>>>   XPS 13 9300 -- 50H3P53 -- Dell laptop
>>>>>   WD19TB ------- 4BWNW43 -- Dell Thunderbolt dock
>>>>>   S2319HS ------ B4TYZ13 -- Dell 23" external monitor
>>>>>
>>>>>   External monitor remains black when waking system after suspending.
>>>>>   Works OK when log out then log in or when reboot.
>>>>>   Using HDMI cable from dock to monitor.
>>>>>
>>>>>   From /var/log/syslog:
>>>>>
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746520] ------------[ cut here
>>>>> ]------------
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746524] WARN_ON(is_mst && (port
>>>>> == PORT_A || port == PORT_E))
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746674] WARNING: CPU: 6 PID: 1221
>>>>> at drivers/gpu/drm/i915/display/intel_ddi.c:3179
>>>>> intel_ddi_pre_enable_dp.isra.0+0x20f/0x430 [i915]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746676] Modules linked in: ccm
>>>>> usblp ftdi_sio usbserial snd_usb_audio snd_usbmidi_lib rfcomm
>>>>> typec_displayport cdc_ether usbnet r8152 mii cmac algif_hash algif_skcipher
>>>>> af_al
>>>>>   g bnep btusb btrtl btbcm btintel uvcvideo videobuf2_vmalloc
>>>>> videobuf2_memops bluetooth videobuf2_v4l2 videobuf2_common videodev mc
>>>>> ecdh_generic ecc nls_iso8859_1 snd_sof_pci snd_sof_intel_hda_common
>>>>> snd_soc_hd
>>>>>   ac_hda snd_hda_codec_hdmi 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 snd_soc_acpi snd_soc_core snd_compress
>>>>> snd_hda_codec_realtek
>>>>>    ac97_bus snd_pcm_dmaengine snd_hda_codec_generic snd_hda_intel
>>>>> mei_hdcp snd_intel_dspcfg dell_laptop snd_hda_codec joydev ledtrig_audio
>>>>> intel_rapl_msr snd_hda_core snd_hwdep x86_pkg_temp_thermal intel_powercl
>>>>>   amp snd_pcm coretemp kvm_intel kvm snd_seq_midi snd_seq_midi_event
>>>>> snd_rawmidi crct10dif_pclmul ghash_clmulni_intel dell_wmi snd_seq
>>>>> aesni_intel dell_smbios crypto_simd dcdbas cryptd glue_helper rapl
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746719]  intel_cstate iwlmvm
>>>>> input_leds serio_raw mac80211 snd_seq_device intel_wmi_thunderbolt wmi_bmof
>>>>> dell_wmi_descriptor snd_timer libarc4 snd hid_sensor_als hid_sensor_t
>>>>>   rigger industrialio_triggered_buffer iwlwifi kfifo_buf
>>>>> hid_sensor_iio_common rtsx_pci_ms 8250_dw memstick soundcore industrialio
>>>>> ucsi_acpi processor_thermal_device intel_rapl_common mei_me typec_ucsi
>>>>> cros_ec_i
>>>>>   shtp hid_multitouch mei cfg80211 cros_ec intel_soc_dts_iosf typec
>>>>> int3403_thermal mac_hid int340x_thermal_zone int3400_thermal intel_hid
>>>>> acpi_thermal_rel sparse_keymap acpi_pad acpi_tad sch_fq_codel parport_pc
>>>>>    ppdev lp parport ip_tables x_tables autofs4 btrfs zstd_compress
>>>>> usbhid raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor
>>>>> async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_sensor_
>>>>>   hub hid_generic intel_ishtp_loader intel_ishtp_hid rtsx_pci_sdmmc
>>>>> i915 crc32_pclmul rtsx_pci psmouse nvme i2c_algo_bit drm_kms_helper
>>>>> intel_lpss_pci i2c_i801 intel_lpss nvme_core syscopyarea idma64
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746764]  sysfillrect virt_dma
>>>>> sysimgblt fb_sys_fops intel_ish_ipc thunderbolt drm intel_ishtp wmi i2c_hid
>>>>> hid video pinctrl_icelake pinctrl_intel
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746778] CPU: 6 PID: 1221 Comm:
>>>>> Xorg Tainted: G        W         5.4.0-48-generic #52-Ubuntu
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746780] Hardware name: Dell Inc.
>>>>> XPS 13 9300/0RMFN5, BIOS 1.2.0 08/13/2020
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746843] RIP:
>>>>> 0010:intel_ddi_pre_enable_dp.isra.0+0x20f/0x430 [i915]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746847] Code: ff ff 83 f8 0a bf
>>>>> 00 00 00 00 49 0f 44 fc 48 89 7d c0 e9 4b fe ff ff 48 c7 c6 e0 0a 76 c0 48
>>>>> c7 c7 43 79 77 c0 e8 0c c5 bd db <0f> 0b e9 ae fe ff ff 41 8b 54 24 70 8b
>>>>> 75 a8 4c 89 e7 e8 8a c7 ff
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746849] RSP:
>>>>> 0018:ffffb3bf01253850 EFLAGS: 00010282
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746852] RAX: 0000000000000000
>>>>> RBX: ffff9f1eebeca000 RCX: 0000000000000000
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746854] RDX: 0000000000000035
>>>>> RSI: ffffffff9dd955d5 RDI: 0000000000000246
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746855] RBP: ffffb3bf012538a8
>>>>> R08: ffffffff9dd955a0 R09: 0000000000000035
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746857] R10: ffffffff9dd95980
>>>>> R11: 000000009dd9559f R12: ffff9f1eebeca000
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746858] R13: ffff9f1e1bb67000
>>>>> R14: ffff9f1eebb80000 R15: ffff9f1eebeca120
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746861] FS:
>>>>> 00007fd341ab0a80(0000) GS:ffff9f1eff780000(0000) knlGS:0000000000000000
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746863] CS:  0010 DS: 0000 ES:
>>>>> 0000 CR0: 0000000080050033
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746865] CR2: 00000177088fa000
>>>>> CR3: 000000046e046003 CR4: 0000000000760ee0
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746866] PKRU: 55555554
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746868] Call Trace:
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746930]  ?
>>>>> intel_set_cpu_fifo_underrun_reporting+0x89/0x2a0 [i915]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.746984]
>>>>> intel_ddi_pre_enable+0x98/0x340 [i915]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747000]  ?
>>>>> drm_dp_mst_topology_put_port+0x27/0x40 [drm_kms_helper]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747053]
>>>>> intel_mst_pre_enable_dp+0x9a/0x150 [i915]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747109]
>>>>> intel_encoders_pre_enable.isra.0+0x6b/0x80 [i915]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747163]
>>>>> haswell_crtc_enable+0x84/0x450 [i915]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747232]  ?
>>>>> intel_pipe_update_end+0x85/0x1b0 [i915]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747302]
>>>>> intel_update_crtc+0x35e/0x3e0 [i915]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747368]
>>>>> skl_update_crtcs+0x24f/0x2c0 [i915]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747436]
>>>>> intel_atomic_commit_tail+0x3eb/0x12e0 [i915]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747442]  ?
>>>>> flush_workqueue_prep_pwqs+0x12e/0x140
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747447]  ?
>>>>> flush_workqueue+0x193/0x420
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747514]  ?
>>>>> intel_atomic_commit_ready+0x4d/0x54 [i915]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747580]
>>>>> intel_atomic_commit+0x284/0x2b0 [i915]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747615]
>>>>> drm_atomic_commit+0x4a/0x50 [drm]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747636]
>>>>> drm_atomic_connector_commit_dpms+0xdf/0x100 [drm]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747660]
>>>>> drm_mode_obj_set_property_ioctl+0x156/0x2a0 [drm]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747684]  ?
>>>>> drm_connector_set_obj_prop+0x90/0x90 [drm]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747705]
>>>>> drm_connector_property_set_ioctl+0x3b/0x60 [drm]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747722]
>>>>> drm_ioctl_kernel+0xae/0xf0 [drm]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747739]  drm_ioctl+0x234/0x3d0
>>>>> [drm]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747758]  ?
>>>>> drm_connector_set_obj_prop+0x90/0x90 [drm]
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747764]  ?
>>>>> __switch_to_asm+0x40/0x70
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747767]  ?
>>>>> __switch_to_asm+0x34/0x70
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747769]  ?
>>>>> __switch_to_asm+0x40/0x70
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747772]  ?
>>>>> __switch_to_asm+0x34/0x70
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747775]  ?
>>>>> __switch_to_asm+0x40/0x70
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747777]  ?
>>>>> __switch_to_asm+0x34/0x70
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747780]  ?
>>>>> __switch_to_asm+0x40/0x70
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747782]  ?
>>>>> __switch_to_asm+0x34/0x70
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747785]  ?
>>>>> __switch_to_asm+0x40/0x70
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747787]  ?
>>>>> __switch_to_asm+0x34/0x70
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747790]  ?
>>>>> __switch_to_asm+0x40/0x70
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747794]  ? __switch_to+0x1b2/0x470
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747799]  do_vfs_ioctl+0x407/0x670
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747801]  ? __schedule+0x2eb/0x740
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747804]  ksys_ioctl+0x67/0x90
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747807]  __x64_sys_ioctl+0x1a/0x20
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747811]  do_syscall_64+0x57/0x190
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747815]
>>>>> entry_SYSCALL_64_after_hwframe+0x44/0xa9
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747817] RIP: 0033:0x7fd341e1050b
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747821] 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
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747822] RSP:
>>>>> 002b:00007ffdbeeafca8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747825] RAX: ffffffffffffffda
>>>>> RBX: 00007ffdbeeafce0 RCX: 00007fd341e1050b
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747826] RDX: 00007ffdbeeafce0
>>>>> RSI: 00000000c01064ab RDI: 000000000000000e
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747827] RBP: 00000000c01064ab
>>>>> R08: 000055884cdb3060 R09: 0000000000000000
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747828] R10: 000055884cdb3060
>>>>> R11: 0000000000000246 R12: 000055884db5ac70
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747830] R13: 000000000000000e
>>>>> R14: 000055884cdb2a20 R15: 000055884ca02138
>>>>>   Oct 14 21:09:41 lt9 kernel: [32059.747833] ---[ end trace
>>>>> 21c6e0ef255ea00b ]---
>>>>>
>>>>>   ProblemType: Bug
>>>>>   DistroRelease: Ubuntu 20.04
>>>>>   Package: linux-image-5.4.0-48-generic 5.4.0-48.52
>>>>>   ProcVersionSignature: Ubuntu 5.4.0-48.52-generic 5.4.60
>>>>>   Uname: Linux 5.4.0-48-generic x86_64
>>>>>   ApportVersion: 2.20.11-0ubuntu27.8
>>>>>   Architecture: amd64
>>>>>   AudioDevicesInUse:
>>>>>    USER        PID ACCESS COMMAND
>>>>>    /dev/snd/controlC1:  dunlap     2447 F.... pulseaudio
>>>>>    /dev/snd/controlC0:  dunlap     2447 F.... pulseaudio
>>>>>   CasperMD5CheckResult: skip
>>>>>   CurrentDesktop: XFCE
>>>>>   Date: Wed Oct 14 21:44:32 2020
>>>>>   DistributionChannelDescriptor:
>>>>>    # This is the distribution channel descriptor for the OEM CDs
>>>>>    # For more information see
>>>>> http://wiki.ubuntu.com/DistributionChannelDescriptor
>>>>>    canonical-oem-somerville-focal-amd64-20200502-85
>>>>>   InstallationDate: Installed on 2020-08-04 (71 days ago)
>>>>>   InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary
>>>>> 20200502-05:58
>>>>>   MachineType: Dell Inc. XPS 13 9300
>>>>>   ProcFB: 0 i915drmfb
>>>>>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-48-generic
>>>>> root=UUID=2d9ccdcb-a33b-4e1c-be69-0390b3405c08 ro quiet splash vt.handoff=7
>>>>>   RelatedPackageVersions:
>>>>>    linux-restricted-modules-5.4.0-48-generic N/A
>>>>>    linux-backports-modules-5.4.0-48-generic  N/A
>>>>>    linux-firmware                            1.187.3
>>>>>   SourcePackage: linux
>>>>>   UpgradeStatus: No upgrade log present (probably fresh install)
>>>>>   dmi.bios.date: 08/13/2020
>>>>>   dmi.bios.vendor: Dell Inc.
>>>>>   dmi.bios.version: 1.2.0
>>>>>   dmi.board.name: 0RMFN5
>>>>>   dmi.board.vendor: Dell Inc.
>>>>>   dmi.board.version: A00
>>>>>   dmi.chassis.type: 10
>>>>>   dmi.chassis.vendor: Dell Inc.
>>>>>   dmi.modalias:
>>>>> dmi:bvnDellInc.:bvr1.2.0:bd08/13/2020:svnDellInc.:pnXPS139300:pvr:rvnDellInc.:rn0RMFN5:rvrA00:cvnDellInc.:ct10:cvr:
>>>>>   dmi.product.family: XPS
>>>>>   dmi.product.name: XPS 13 9300
>>>>>   dmi.product.sku: 096D
>>>>>   dmi.sys.vendor: Dell Inc.
>>>>>
>>>>> To manage notifications about this bug go to:
>>>>>
>>>>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1899882/+subscriptions
>>>>>
>>>>