This bug was fixed in the package linux - 5.10.0-14.15
---------------
linux (5.10.0-14.15) hirsute; urgency=medium
* hirsute/linux: 5.10.0-14.15 -proposed tracker (LP: #1913724)
* Restore palm ejection on multi-input devices (LP: #1913520)
- HID: multitouch: Apply MT_QUIRK_CONFIDENCE quirk for multi-input devices
* intel-hid is not loaded on new Intel platform (LP: #1907160)
- platform/x86: intel-hid: add Rocket Lake ACPI device ID
* Hirsute update: v5.10.11 upstream stable release (LP: #1913430)
- scsi: target: tcmu: Fix use-after-free of se_cmd->priv
- mtd: rawnand: gpmi: fix dst bit offset when extracting raw payload
- mtd: rawnand: nandsim: Fix the logic when selecting Hamming soft ECC
engine
- i2c: tegra: Wait for config load atomically while in ISR
- i2c: bpmp-tegra: Ignore unknown I2C_M flags
- platform/x86: ideapad-laptop: Disable touchpad_switch for ELAN0634
- ALSA: seq: oss: Fix missing error check in snd_seq_oss_synth_make_info()
- ALSA: hda/realtek - Limit int mic boost on Acer Aspire E5-575T
- ALSA: hda/via: Add minimum mute flag
- crypto: xor - Fix divide error in do_xor_speed()
- dm crypt: fix copy and paste bug in crypt_alloc_req_aead
- ACPI: scan: Make acpi_bus_get_device() clear return pointer on error
- btrfs: don't get an EINTR during drop_snapshot for reloc
- btrfs: do not double free backref nodes on error
- btrfs: fix lockdep splat in btrfs_recover_relocation
- btrfs: don't clear ret in btrfs_start_dirty_block_groups
- btrfs: send: fix invalid clone operations when cloning from the same file
and root
- fs: fix lazytime expiration handling in __writeback_single_inode()
- pinctrl: ingenic: Fix JZ4760 support
- mmc: core: don't initialize block size from ext_csd if not present
- mmc: sdhci-of-dwcmshc: fix rpmb access
- mmc: sdhci-xenon: fix 1.8v regulator stabilization
- mmc: sdhci-brcmstb: Fix mmc timeout errors on S5 suspend
- dm: avoid filesystem lookup in dm_get_dev_t()
- dm integrity: fix a crash if "recalculate" used without "internal_hash"
- dm integrity: conditionally disable "recalculate" feature
- drm/atomic: put state on error path
- drm/syncobj: Fix use-after-free
- drm/amdgpu: remove gpu info firmware of green sardine
- drm/amd/display: DCN2X Find Secondary Pipe properly in MPO + ODM Case
- drm/i915/gt: Prevent use of engine->wa_ctx after error
- drm/i915: Check for rq->hwsp validity after acquiring RCU lock
- ASoC: Intel: haswell: Add missing pm_ops
- ASoC: rt711: mutex between calibration and power state changes
- SUNRPC: Handle TCP socket sends with kernel_sendpage() again
- HID: sony: select CONFIG_CRC32
- dm integrity: select CRYPTO_SKCIPHER
- x86/hyperv: Fix kexec panic/hang issues
- scsi: ufs: Relax the condition of UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL
- scsi: ufs: Correct the LUN used in eh_device_reset_handler() callback
- scsi: qedi: Correct max length of CHAP secret
- scsi: scsi_debug: Fix memleak in scsi_debug_init()
- scsi: sd: Suppress spurious errors when WRITE SAME is being disabled
- riscv: Fix kernel time_init()
- riscv: Fix sifive serial driver
- riscv: Enable interrupts during syscalls with M-Mode
- HID: logitech-dj: add the G602 receiver
- HID: Ignore battery for Elan touchscreen on ASUS UX550
- clk: tegra30: Add hda clock default rates to clock driver
- ALSA: hda/tegra: fix tegra-hda on tegra30 soc
- riscv: cacheinfo: Fix using smp_processor_id() in preemptible
- arm64: make atomic helpers __always_inline
- xen: Fix event channel callback via INTX/GSI
- x86/xen: Add xen_no_vector_callback option to test PCI INTX delivery
- x86/xen: Fix xen_hvm_smp_init() when vector callback not available
- dts: phy: fix missing mdio device and probe failure of vsc8541-01 device
- dts: phy: add GPIO number and active state used for phy reset
- riscv: defconfig: enable gpio support for HiFive Unleashed
- drm/amdgpu/psp: fix psp gfx ctrl cmds
- drm/amd/display: disable dcn10 pipe split by default
- HID: logitech-hidpp: Add product ID for MX Ergo in Bluetooth mode
- drm/amd/display: Fix to be able to stop crc calculation
- drm/nouveau/bios: fix issue shadowing expansion ROMs
- drm/nouveau/privring: ack interrupts the same way as RM
- drm/nouveau/i2c/gm200: increase width of aux semaphore owner fields
- drm/nouveau/mmu: fix vram heap sizing
- drm/nouveau/kms/nv50-: fix case where notifier buffer is at offset 0
- io_uring: flush timeouts that should already have expired
- libperf tests: If a test fails return non-zero
- libperf tests: Fail when failing to get a tracepoint id
- RISC-V: Set current memblock limit
- RISC-V: Fix maximum allowed phsyical memory for RV32
- x86/xen: fix 'nopvspin' build error
- nfsd: Fixes for nfsd4_encode_read_plus_data()
- nfsd: Don't set eof on a truncated READ_PLUS
- gpiolib: cdev: fix frame size warning in gpio_ioctl()
- pinctrl: aspeed: g6: Fix PWMG0 pinctrl setting
- pinctrl: mediatek: Fix fallback call path
- RDMA/ucma: Do not miss ctx destruction steps in some cases
- btrfs: print the actual offset in btrfs_root_name
- scsi: megaraid_sas: Fix MEGASAS_IOC_FIRMWARE regression
- scsi: ufs: ufshcd-pltfrm depends on HAS_IOMEM
- scsi: ufs: Fix tm request when non-fatal error happens
- crypto: omap-sham - Fix link error without crypto-engine
- bpf: Prevent double bpf_prog_put call from bpf_tracing_prog_attach
- powerpc: Use the common INIT_DATA_SECTION macro in vmlinux.lds.S
- powerpc: Fix alignment bug within the init sections
- arm64: entry: remove redundant IRQ flag tracing
- bpf: Reject too big ctx_size_in for raw_tp test run
- drm/amdkfd: Fix out-of-bounds read in kdf_create_vcrat_image_cpu()
- RDMA/umem: Avoid undefined behavior of rounddown_pow_of_two()
- RDMA/cma: Fix error flow in default_roce_mode_store
- printk: ringbuffer: fix line counting
- printk: fix kmsg_dump_get_buffer length calulations
- iov_iter: fix the uaccess area in copy_compat_iovec_from_user
- i2c: octeon: check correct size of maximum RECV_LEN packet
- drm/vc4: Unify PCM card's driver_name
- platform/x86: intel-vbtn: Drop HP Stream x360 Convertible PC 11 from
allow-
list
- platform/x86: hp-wmi: Don't log a warning on HPWMI_RET_UNKNOWN_COMMAND
errors
- gpio: sifive: select IRQ_DOMAIN_HIERARCHY rather than depend on it
- xsk: Clear pool even for inactive queues
- selftests: net: fib_tests: remove duplicate log test
- can: dev: can_restart: fix use after free bug
- can: vxcan: vxcan_xmit: fix use after free bug
- can: peak_usb: fix use after free bugs
- perf evlist: Fix id index for heterogeneous systems
- i2c: sprd: depend on COMMON_CLK to fix compile tests
- iio: common: st_sensors: fix possible infinite loop in
st_sensors_irq_thread
- iio: ad5504: Fix setting power-down state
- drivers: iio: temperature: Add delay after the addressed reset command in
mlx90632.c
- iio: adc: ti_am335x_adc: remove omitted iio_kfifo_free()
- counter:ti-eqep: remove floor
- powerpc/64s: fix scv entry fallback flush vs interrupt
- cifs: do not fail __smb_send_rqst if non-fatal signals are pending
- irqchip/mips-cpu: Set IPI domain parent chip
- x86/fpu: Add kernel_fpu_begin_mask() to selectively initialize state
- x86/topology: Make __max_die_per_package available unconditionally
- x86/mmx: Use KFPU_387 for MMX string operations
- x86/setup: don't remove E820_TYPE_RAM for pfn 0
- proc_sysctl: fix oops caused by incorrect command parameters
- mm: memcg/slab: optimize objcg stock draining
- mm: memcg: fix memcg file_dirty numa stat
- mm: fix numa stats for thp migration
- io_uring: iopoll requests should also wake task ->in_idle state
- io_uring: fix SQPOLL IORING_OP_CLOSE cancelation state
- io_uring: fix short read retries for non-reg files
- intel_th: pci: Add Alder Lake-P support
- stm class: Fix module init return on allocation failure
- serial: mvebu-uart: fix tx lost characters at power off
- ehci: fix EHCI host controller initialization sequence
- USB: ehci: fix an interrupt calltrace error
- usb: gadget: aspeed: fix stop dma register setting.
- USB: gadget: dummy-hcd: Fix errors in port-reset handling
- usb: udc: core: Use lock when write to soft_connect
- usb: bdc: Make bdc pci driver depend on BROKEN
- usb: cdns3: imx: fix writing read-only memory issue
- usb: cdns3: imx: fix can't create core device the second time issue
- xhci: make sure TRB is fully written before giving it to the controller
- xhci: tegra: Delay for disabling LFPS detector
- drivers core: Free dma_range_map when driver probe failed
- driver core: Fix device link device name collision
- driver core: Extend device_is_dependent()
- drm/i915: s/intel_dp_sink_dpms/intel_dp_set_power/
- drm/i915: Only enable DFP 4:4:4->4:2:0 conversion when outputting YCbCr
4:4:4
- x86/entry: Fix noinstr fail
- x86/cpu/amd: Set __max_die_per_package on AMD
- cls_flower: call nla_ok() before nla_next()
- netfilter: rpfilter: mask ecn bits before fib lookup
- tools: gpio: fix %llu warning in gpio-event-mon.c
- tools: gpio: fix %llu warning in gpio-watch.c
- drm/i915/hdcp: Update CP property in update_pipe
- sh: dma: fix kconfig dependency for G2_DMA
- sh: Remove unused HAVE_COPY_THREAD_TLS macro
- locking/lockdep: Cure noinstr fail
- ASoC: SOF: Intel: fix page fault at probe if i915 init fails
- octeontx2-af: Fix missing check bugs in rvu_cgx.c
- net: dsa: mv88e6xxx: also read STU state in mv88e6250_g1_vtu_getnext
- selftests/powerpc: Fix exit status of pkey tests
- sh_eth: Fix power down vs. is_opened flag ordering
- nvme-pci: refactor nvme_unmap_data
- nvme-pci: fix error unwind in nvme_map_data
- cachefiles: Drop superfluous readpages aops NULL check
- lightnvm: fix memory leak when submit fails
- skbuff: back tiny skbs with kmalloc() in __netdev_alloc_skb() too
- kasan: fix unaligned address is unhandled in kasan_remove_zero_shadow
- kasan: fix incorrect arguments passing in kasan_add_zero_shadow
- tcp: fix TCP socket rehash stats mis-accounting
- net_sched: gen_estimator: support large ewma log
- udp: mask TOS bits in udp_v4_early_demux()
- ipv6: create multicast route with RTPROT_KERNEL
- net_sched: avoid shift-out-of-bounds in tcindex_set_parms()
- net_sched: reject silly cell_log in qdisc_get_rtab()
- ipv6: set multicast flag on the multicast route
- net: mscc: ocelot: allow offloading of bridge on top of LAG
- net: Disable NETIF_F_HW_TLS_RX when RXCSUM is disabled
- net: dsa: b53: fix an off by one in checking "vlan->vid"
- tcp: do not mess with cloned skbs in tcp_add_backlog()
- tcp: fix TCP_USER_TIMEOUT with zero window
- net: mscc: ocelot: Fix multicast to the CPU port
- net: core: devlink: use right genl user_ptr when handling port param
get/set
- pinctrl: qcom: Allow SoCs to specify a GPIO function that's not 0
- pinctrl: qcom: No need to read-modify-write the interrupt status
- pinctrl: qcom: Properly clear "intr_ack_high" interrupts when unmasking
- pinctrl: qcom: Don't clear pending interrupts when enabling
- x86/sev: Fix nonistr violation
- tty: implement write_iter
- tty: fix up hung_up_tty_write() conversion
- net: systemport: free dev before on error path
- x86/sev-es: Handle string port IO to kernel memory properly
- tcp: Fix potential use-after-free due to double kfree()
- drm/i915/hdcp: Get conn while content_type changed
- bpf: Local storage helpers should check nullness of owner ptr passed
- kernfs: implement ->read_iter
- kernfs: implement ->write_iter
- kernfs: wire up ->splice_read and ->splice_write
- interconnect: imx8mq: Use icc_sync_state
- fs/pipe: allow sendfile() to pipe again
- Commit 9bb48c82aced ("tty: implement write_iter") converted the tty layer
to
use write_iter. Fix the redirected_tty_write declaration also in n_tty and
change the comparisons to use write_iter instead of write. also in n_tty
and
change the comparisons to use write_iter instead of write.
- mm: fix initialization of struct page for holes in memory layout
- Revert "mm: fix initialization of struct page for holes in memory layout"
- Linux 5.10.11
* High load from process irq/65-i2c-INT3 - kernel module tps6598x
(LP: #1883511) // Hirsute update: v5.10.11 upstream stable release
(LP: #1913430)
- platform/x86: i2c-multi-instantiate: Don't create platform device for
INT3515 ACPI nodes
* Hirsute update: v5.10.10 upstream stable release (LP: #1913429)
- Revert "kconfig: remove 'kvmconfig' and 'xenconfig' shorthands"
- x86/hyperv: Initialize clockevents after LAPIC is initialized
- drm/amdgpu/display: drop DCN support for aarch64
- bpf: Fix signed_{sub,add32}_overflows type handling
- X.509: Fix crash caused by NULL pointer
- nfsd4: readdirplus shouldn't return parent of export
- bpf: Don't leak memory in bpf getsockopt when optlen == 0
- bpf: Support PTR_TO_MEM{,_OR_NULL} register spilling
- bpf: Fix helper bpf_map_peek_elem_proto pointing to wrong callback
- net: ipa: modem: add missing SET_NETDEV_DEV() for proper sysfs links
- net: fix use-after-free when UDP GRO with shared fraglist
- udp: Prevent reuseport_select_sock from reading uninitialized socks
- netxen_nic: fix MSI/MSI-x interrupts
- net: ipv6: Validate GSO SKB before finish IPv6 processing
- tipc: fix NULL deref in tipc_link_xmit()
- mlxsw: core: Add validation of transceiver temperature thresholds
- mlxsw: core: Increase critical threshold for ASIC thermal zone
- net: mvpp2: Remove Pause and Asym_Pause support
- rndis_host: set proper input size for OID_GEN_PHYSICAL_MEDIUM request
- esp: avoid unneeded kmap_atomic call
- net: dcb: Validate netlink message in DCB handler
- net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands
- rxrpc: Call state should be read with READ_ONCE() under some circumstances
- i40e: fix potential NULL pointer dereferencing
- net: stmmac: Fixed mtu channged by cache aligned
- net: sit: unregister_netdevice on newlink's error path
- net: stmmac: fix taprio schedule configuration
- net: stmmac: fix taprio configuration when base_time is in the past
- net: avoid 32 x truesize under-estimation for tiny skbs
- dt-bindings: net: renesas,etheravb: RZ/G2H needs tx-internal-delay-ps
- net: phy: smsc: fix clk error handling
- net: dsa: clear devlink port type before unregistering slave netdevs
- rxrpc: Fix handling of an unsupported token type in rxrpc_read()
- net: stmmac: use __napi_schedule() for PREEMPT_RT
- can: mcp251xfd: mcp251xfd_handle_rxif_one(): fix wrong NULL pointer check
- drm/panel: otm8009a: allow using non-continuous dsi clock
- mac80211: do not drop tx nulldata packets on encrypted links
- mac80211: check if atf has been disabled in __ieee80211_schedule_txq
- net: dsa: unbind all switches from tree when DSA master unbinds
- cxgb4/chtls: Fix tid stuck due to wrong update of qid
- spi: fsl: Fix driver breakage when SPI_CS_HIGH is not set in spi->mode
- spi: cadence: cache reference clock rate during probe
- Linux 5.10.10
* Remove scary stack trace from Realtek WiFi driver (LP: #1913263)
- rtw88: reduce the log level for failure of tx report
* Packaging resync (LP: #1786013)
- update dkms package versions
* Introduce the new NVIDIA 460-server series and update the 460 series
(LP: #1913200)
- [Config] dkms-versions -- add the 460-server nvidia driver
* backlight parsing for VBT 234+ (LP: #1912157)
- drm/i915/vbt: Fix backlight parsing for VBT 234+
- drm/i915/vbt: Update the version and expected size of
BDB_GENERAL_DEFINITIONS map
- drm/i915/vbt: Add VRR VBT toggle
* Support CML-S CPU + TGP PCH (LP: #1909457)
- drm/i915/dg1: gmbus pin mapping
- drm/i915/dg1: Don't program PHY_MISC for PHY-C and PHY-D
- drm/i915/dg1: add hpd interrupt handling
- drm/i915/display/ehl: Limit eDP to HBR2
- drm/i915/jsl: Split EHL/JSL platform info and PCI ids
- drm/i915: Add PORT_TCn aliases to enum port
- drm/i915: s/PORT_TC/TC_PORT_/
- drm/i915/rkl: new rkl ddc map for different PCH
- SAUCE: drm/i915/gen9_bc : Add TGP PCH support
* Fix the video can't output through WD19TB connected with TGL platform during
cold-boot (LP: #1910211)
- SAUCE: drm/i915/dp: Prevent setting LTTPR mode if no LTTPR is detected
* Stop using get_scalar_status command in Dell AIO uart backlight driver
(LP: #1865402)
- SAUCE: platform/x86: dell-uart-backlight: add get_display_mode command
* Killer 500s (QCA6390) WLAN/BT [17cb:1101] unavailable (LP: #1879633)
- SAUCE: ath11k: add 64bit check before reading msi high addr
- SAUCE: ath11k: pci: support platforms with one MSI vector
- SAUCE: ath11k: dp_rx: fix monitor status dma unmap direction
- SAUCE: ath11k: hook mhi suspend and resume
- SAUCE: ath11k: implement hif suspend and resume functions.
- SAUCE: ath11k: read select_window register to ensure write is finished
- SAUCE: ath11k: implement htc suspend related callbacks
- SAUCE: ath11k: put target to suspend when system enters suspend state
- SAUCE: ath11k: pci: print a warning if firmware crashed
- SAUCE: ath11k: qmi: print allocated memory segment addresses and sizes
- SAUCE: HACK: ath11k: add delays to suspend and resume handlers
- SAUCE: ath11k: put hw to DBS using WMI_PDEV_SET_HW_MODE_CMDID
- SAUCE: ath11k: fix pcie link unstable issue
- SAUCE: ath11k: fix PCI L1ss clock unstable problem
- SAUCE: ath11k: disable OTP write privilege
- SAUCE: ath11k: disable ASPM L0sLs before downloading firmware
- SAUCE: ath11k: purge rx pktlog when entering suspend
- SAUCE: ath11k: set credit_update flag for flow controlled ep only
- SAUCE: ath11k: implement wow enable and wow wakeup command
- SAUCE: ath11k: add ce irq enable and disable hif layer functions
- SAUCE: ath11k: put target to wow state when suspend happens
- SAUCE: ath11k: vdev delete synchronization with firmware
- SAUCE: ath11k: peer delete synchronization with firmware
* Add support for Intel Bluetooth Device Typhoon Peak (8087:0032)
(LP: #1890130)
- SAUCE: Bluetooth: btintel: Fix endianness issue for TLV version
information
- SAUCE: Bluetooth: btusb: Add *setup* function for new generation Intel
controllers
- SAUCE: Bluetooth: btusb: Define a function to construct firmware filename
- SAUCE: Bluetooth: btusb: Helper function to download firmware to Intel
adapters
- SAUCE: Bluetooth: btusb: Map Typhoon peak controller to BTUSB_INTEL_NEWGEN
* failed to boot to GUI: i915 0000:00:02.0: [drm] *ERROR* Link Training
Unsuccessful (LP: #1903969)
- SAUCE: drm/i915: s/old_crtc_state/crtc_state/
- SAUCE: drm/i915: Make intel_dp_process_phy_request() static
- SAUCE: drm/i915: Shove the PHY test into the hotplug work
- SAUCE: drm/i915: Split ICL combo PHY buf trans per output type
- SAUCE: drm/i915: Split ICL MG PHY buf trans per output type
- SAUCE: drm/i915: Split EHL combo PHY buf trans per output type
- SAUCE: drm/i915: Split TGL combo PHY buf trans per output type
- SAUCE: drm/i915: Split TGL DKL PHY buf trans per output type
- SAUCE: drm/i915: Plumb crtc_state to link training
- SAUCE: drm/i915: Fix DP link training pattern mask
- SAUCE: drm/i915: Simplify the link training functions
- SAUCE: drm/i915: Factor out a helper to disable the DPCD training pattern
- SAUCE: drm/dp: Add LTTPR helpers
- SAUCE: drm/i915: Switch to LTTPR transparent mode link training
- SAUCE: drm/i915: Switch to LTTPR non-transparent mode link training
* switch to an autogenerated nvidia series based core via dkms-versions
(LP: #1912803)
- [Packaging] nvidia -- use dkms-versions to define versions built
- [Packaging] update-version-dkms -- maintain flags fields
- [Config] dkms-versions -- add transitional/skip information for nvidia
packages
* Miscellaneous Ubuntu changes
- [Config] Move some CONFIG_INTERCONNECT_QCOM_* options to different menu
- SAUCE: selftests/seccomp: Accept any valid fd in user_notification_addfd
- [Config] updateconfigs following v5.10.11 import
- abi: gc bdc_pci module
- zfs-modules.ignore: add zzstd
* Miscellaneous upstream changes
- selftests/powerpc: Only test lwm/stmw on big endian
-- Paolo Pisati <paolo.pis...@canonical.com> Fri, 29 Jan 2021 14:23:04
+0100
** Changed in: linux (Ubuntu Hirsute)
Status: In Progress => Fix Released
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-5.6 in Ubuntu.
https://bugs.launchpad.net/bugs/1903969
Title:
failed to boot to GUI: i915 0000:00:02.0: [drm] *ERROR* Link Training
Unsuccessful
Status in HWE Next:
New
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-5.10 package in Ubuntu:
Invalid
Status in linux-oem-5.6 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Invalid
Status in linux-oem-5.10 source package in Focal:
Fix Released
Status in linux-oem-5.6 source package in Focal:
Won't Fix
Status in linux source package in Groovy:
Won't Fix
Status in linux-oem-5.10 source package in Groovy:
Invalid
Status in linux-oem-5.6 source package in Groovy:
Invalid
Status in linux source package in Hirsute:
Fix Released
Status in linux-oem-5.10 source package in Hirsute:
Invalid
Status in linux-oem-5.6 source package in Hirsute:
Invalid
Bug description:
[SRU Justification]
[Impact]
On platforms supported DP tunneling over USB 3.2 or so, a Retimer is
required on the host side to cover insertion loss. On such platforms the
rtimer firmware maybe configured to use LTTPR (Link Training Tunable PHY
Repeater) non-transparent mode only, which is only supported in drm-tip
currently. Without LTTPR support, link training may fail with following
error messages depending on the data path configuration:
i915 0000:00:02.0: [drm] *ERROR* Link Training Unsuccessful
i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun
[Fix]
Patchset https://www.spinics.net/lists/intel-gfx/msg248700.html
("drm/i915: Add support for LTTPR non-transparent link training mode")
is required to fix this issue. It has been landed to drm-tip and will
only be merged to mainline in v5.11.
Patchset https://patchwork.freedesktop.org/series/76993/ ("Plumb crtc
state to link training code") is included for link training functions
prototype changes.
[Test Case]
On Dell OptiPlex and WD19 docking station, use following steps to verify:
1. disconnect WD19 from OptiPlex, disconnect OptiPlex's power
2. attach OptiPlex's power cord
3. attach WD19's power cord
4. attach DP to WD19
5. attach WD19 to OptiPlex
6. boot up and check if boot to GUI directly
7. `dmesg` and check if aforementioned DRM link training error appears
[Where problems could occur]
The second patchset pulled for dependency doesn't have too much
effective changes but refactoring some translation functions, so very
unlikely to have regressions.
For the major part, LTTPR support, when LTTPR is either not detected or
not supported, it will fall back to use transparent mode as it was.
Otherwise, DP Standard recommends to use LTTPR non-transparent mode for
link training, so this should be the right way to have best hardware
support.
========== original bug description ==========
[Summary]
When the monitor ONLY is connected to the WD19 (DP port) and WD19 is
connected to the type c port than boot the machine, the monitor shows no video
output after loaded i915.
[Reproduce Steps]
1. connect power cable of WD19
2. connect DP cable from monitor to WD19
3. connect power cable to target system.
4. connect type c cable from WD19 to target system
5. boot up
[Results]
Expected: video output as there is only one monitor connected.
Actual: No video output.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.6.0-1033-oem 5.6.0-1033.35
ProcVersionSignature: Ubuntu 5.6.0-1033.35-oem 5.6.19
Uname: Linux 5.6.0-1033-oem x86_64
ApportVersion: 2.20.11-0ubuntu27.11
Architecture: amd64
CasperMD5CheckResult: skip
Date: Thu Nov 12 05:11:11 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+fossa-metapod+X40
InstallationDate: Installed on 2020-11-03 (9 days ago)
InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary
20200502-05:58
SourcePackage: linux-signed-oem-5.6
UpgradeStatus: No upgrade log present (probably fresh install)
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