random freezes and xorg dies sending me back to login screen

[Gilbertf]

branch new dell xps 2020
machine randomly freezes and xorg dies on me
nothing in /var/crash
but everything opened, not saved, is lost. i am sent back to login screen.

machine has latest bios (1.0.7)
is up to date regarding its ubuntu 18.04

i am seeing this in my kern.log which makes me suspect something is wrong with the Intel Iris driver :

May 18 22:12:28 asgard kernel: [ 4906.887448] WARN_ON(intel_wait_for_register(dev_priv, regs->driver, (0x1 <<
 ((pw_idx) * 2)), (0x1 << ((pw_idx) * 2)), 1))
May 18 22:12:28 asgard kernel: [ 4906.887524] WARNING: CPU: 2 PID: 5160 at /build/linux-oem-osp1-JJcJwF/linux
-oem-osp1-5.0.0/drivers/gpu/drm/i915/intel_runtime_pm.c:308 hsw_wait_for_power_well_enable.isra.8+0x4c/0x50 [
i915]
May 18 22:12:28 asgard kernel: [ 4906.887525] Modules linked in: rfcomm ccm cmac bnep uvcvideo btusb btrtl vi
deobuf2_vmalloc btbcm videobuf2_memops btintel videobuf2_v4l2 bluetooth videobuf2_common videodev ecdh_generi
c media hid_multitouch 8250_dw dell_laptop nls_iso8859_1 intel_rapl x86_pkg_temp_thermal intel_powerclamp cor
etemp kvm_intel arc4 snd_hda_codec_hdmi crct10dif_pclmul sof_pci_dev snd_sof_intel_hda_common snd_soc_hdac_hd
a snd_sof_intel_hda snd_hda_codec_realtek snd_sof_xtensa_dsp snd_sof crc32_pclmul snd_hda_ext_core snd_hda_co
dec_generic snd_soc_acpi_intel_match ledtrig_audio snd_soc_acpi ghash_clmulni_intel snd_soc_core snd_compress
 ac97_bus snd_pcm_dmaengine snd_hda_intel snd_intel_nhlt snd_hda_codec snd_hda_core snd_hwdep snd_pcm aesni_i
ntel snd_seq_midi snd_seq_midi_event snd_rawmidi aes_x86_64 crypto_simd cryptd glue_helper intel_cstate intel
_rapl_perf joydev input_leds snd_seq serio_raw dell_wmi iwlmvm dell_smbios snd_seq_device dcdbas idma64 snd_t
imer mac80211 virt_dma dell_wmi_descriptor snd
May 18 22:12:28 asgard kernel: [ 4906.887547] intel_wmi_thunderbolt wmi_bmof iwlwifi hid_sensor_als soundcor
e hid_sensor_trigger industrialio_triggered_buffer kfifo_buf hid_sensor_iio_common mei_me cfg80211 rtsx_pci_m
s industrialio mei memstick intel_lpss_pci intel_lpss ucsi_acpi typec_ucsi typec int3403_thermal int340x_ther
mal_zone intel_hid mac_hid sparse_keymap int3400_thermal acpi_pad acpi_thermal_rel acpi_tad sch_fq_codel parp
ort_pc ppdev lp parport ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async
_memcpy async_pq async_xor async_tx xor mmc_block raid6_pq libcrc32c raid1 raid0 multipath linear hid_sensor_
hub hid_generic intel_ishtp_hid i915 kvmgt vfio_mdev mdev rtsx_pci_sdmmc vfio_iommu_type1 vfio kvm irqbypass
psmouse i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt nvme fb_sys_fops drm rtsx_pci nvme_core
 intel_ish_ipc thunderbolt intel_ishtp i2c_hid wmi hid video pinctrl_icelake pinctrl_intel
May 18 22:12:28 asgard kernel: [ 4906.887575] CPU: 2 PID: 5160 Comm: Xorg Tainted: G W 5.0.0-1
050-oem-osp1 #55-Ubuntu
May 18 22:12:28 asgard kernel: [ 4906.887576] Hardware name: Dell Inc. XPS 13 9300/077Y9N, BIOS 1.0.7 02/26/2
020
May 18 22:12:28 asgard kernel: [ 4906.887604] RIP: 0010:hsw_wait_for_power_well_enable.isra.8+0x4c/0x50 [i915
]
May 18 22:12:28 asgard kernel: [ 4906.887607] Code: 01 c9 8b 70 04 6a 00 d3 e2 89 d1 e8 3e 86 04 00 85 c0 5a
75 02 c9 c3 48 c7 c6 98 42 5f c0 48 c7 c7 55 3d 5e c0 e8 a4 1c 9d df <0f> 0b c9 c3 0f 1f 44 00 00 55 ba 01 00
 00 00 48 89 e5 41 57 41 56
May 18 22:12:28 asgard kernel: [ 4906.887609] RSP: 0018:ffffadd0048179c0 EFLAGS: 00010282
May 18 22:12:28 asgard kernel: [ 4906.887611] RAX: 0000000000000000 RBX: ffff9ce96e438000 RCX: 00000000000000
00
May 18 22:12:28 asgard kernel: [ 4906.887612] RDX: 000000000000006d RSI: ffffffffa196492d RDI: 00000000000002
46
May 18 22:12:28 asgard kernel: [ 4906.887613] RBP: ffffadd0048179c0 R08: 0000000000000000 R09: ffffffffa19648c0
May 18 22:12:28 asgard kernel: [ 4906.887614] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
May 18 22:12:28 asgard kernel: [ 4906.887618] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
May 18 22:12:28 asgard kernel: [ 4906.887619] CR2: 000055ea60d5b730 CR3: 000000047a4a6006 CR4: 0000000000760ee0
May 18 22:12:28 asgard kernel: [ 4906.887620] PKRU: 55555554
May 18 22:12:28 asgard kernel: [ 4906.887621] Call Trace:
May 18 22:12:28 asgard kernel: [ 4906.887650] hsw_power_well_enable+0xaf/0x1d0 [i915]
May 18 22:12:28 asgard kernel: [ 4906.887678] icl_tc_phy_aux_power_well_enable+0x7f/0x90 [i915]
May 18 22:12:28 asgard kernel: [ 4906.887704] intel_power_well_enable+0x3f/0x50 [i915]
May 18 22:12:28 asgard kernel: [ 4906.887730] __intel_display_power_get_domain+0x75/0x90 [i915]
May 18 22:12:28 asgard kernel: [ 4906.887758] intel_display_power_get+0x33/0x50 [i915]
May 18 22:12:28 asgard kernel: [ 4906.887798] intel_dp_detect+0x96/0x5b0 [i915]
May 18 22:12:28 asgard kernel: [ 4906.887802] ? ww_mutex_lock+0x64/0x70
May 18 22:12:28 asgard kernel: [ 4906.887811] drm_helper_probe_detect+0x50/0x90 [drm_kms_helper]
May 18 22:12:28 asgard kernel: [ 4906.887819] drm_helper_probe_single_connector_modes+0xd8/0x730 [drm_kms_helper]
May 18 22:12:28 asgard kernel: [ 4906.887836] ? drm_atomic_get_property+0x1a3/0x620 [drm]
May 18 22:12:28 asgard kernel: [ 4906.887856] drm_mode_getconnector+0x22d/0x500 [drm]
May 18 22:12:28 asgard kernel: [ 4906.887874] ? drm_connector_property_set_ioctl+0x60/0x60 [drm]
May 18 22:12:28 asgard kernel: [ 4906.887888] drm_ioctl_kernel+0xae/0xf0 [drm]
May 18 22:12:28 asgard kernel: [ 4906.887902] drm_ioctl+0x389/0x450 [drm]
May 18 22:12:28 asgard kernel: [ 4906.887919] ? drm_connector_property_set_ioctl+0x60/0x60 [drm]
May 18 22:12:28 asgard kernel: [ 4906.887932] ? new_sync_write+0x10c/0x170
May 18 22:12:28 asgard kernel: [ 4906.887935] do_vfs_ioctl+0xa9/0x640
May 18 22:12:28 asgard kernel: [ 4906.887937] ? vfs_write+0x12e/0x1a0
May 18 22:12:28 asgard kernel: [ 4906.887939] ksys_ioctl+0x75/0x80
May 18 22:12:28 asgard kernel: [ 4906.887942] __x64_sys_ioctl+0x1a/0x20
May 18 22:12:28 asgard kernel: [ 4906.887944] do_syscall_64+0x5a/0x120
May 18 22:12:28 asgard kernel: [ 4906.887947] entry_SYSCALL_64_after_hwframe+0x44/0xa9
May 18 22:12:28 asgard kernel: [ 4906.887949] RIP: 0033:0x7f176ee005d7
May 18 22:12:28 asgard kernel: [ 4906.887951] Code: b3 66 90 48 8b 05 b1 48 2d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 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 81 48 2d 00 f7 d8 64 89 01 48
May 18 22:12:28 asgard kernel: [ 4906.887953] RSP: 002b:00007ffeeb97ee08 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
May 18 22:12:28 asgard kernel: [ 4906.887955] RAX: ffffffffffffffda RBX: 000055ea60f11f70 RCX: 00007f176ee005d7
May 18 22:12:28 asgard kernel: [ 4906.887956] RDX: 00007ffeeb97ee40 RSI: 00000000c05064a7 RDI: 000000000000000c
May 18 22:12:28 asgard kernel: [ 4906.887957] RBP: 00007ffeeb97ee40 R08: 0000000000000000 R09: 0000000000000000
May 18 22:12:28 asgard kernel: [ 4906.887958] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000c05064a7
May 18 22:12:28 asgard kernel: [ 4906.887959] R13: 000000000000000c R14: 000000000000000c R15: 00007ffeeb97ee40
May 18 22:12:28 asgard kernel: [ 4906.887961] ---[ end trace 23c5cc68cb066cf7 ]---

I hope this is complete.

Sometimes it works fine for an hour or so
Other times I get several freezes in 15 minutes

Please contact me if you need anything like a log file
I can upload anything somewhere
Contact me here or at : <email address hidden>

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xorg 1:7.7+19ubuntu7.1
ProcVersionSignature: Ubuntu 5.0.0-1050.55-oem-osp1 5.0.21
Uname: Linux 5.0.0-1050-oem-osp1 x86_64
ApportVersion: 2.20.9-0ubuntu7.14
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Mon May 18 22:11:59 2020
DistUpgraded: Fresh install
DistributionChannelDescriptor:
 # This is the distribution channel descriptor for the OEM CDs
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-bionic-amd64-20190418-59+beaver-osp1+X00
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation Device [8086:8a52] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:096d]
InstallationDate: Installed on 2020-04-29 (19 days ago)
InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20190418-12:10
MachineType: Dell Inc. XPS 13 9300
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-1050-oem-osp1 root=UUID=5a3fd3ad-1ee6-42e6-a156-083b1afa390b ro quiet splash noibrs noibpb nopti nospectre_v2 nospectre_v1 l1tf=off nospec_store_bypass_disable no_stf_barrier mds=off tsx=on tsx_async_abort=off mitigations=off vt.handoff=1
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/26/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.0.7
dmi.board.name: 077Y9N
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.0.7:bd02/26/2020:svnDellInc.:pnXPS139300:pvr:rvnDellInc.:rn077Y9N:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 9300
dmi.product.sku: 096D
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.99-1ubuntu1~18.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.8-0ubuntu0~18.04.3
version.libgl1-mesa-glx: libgl1-mesa-glx 19.2.8-0ubuntu0~18.04.3
version.xserver-xorg-core: xserver-xorg-core N/A
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1878670, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.