Intel AX201 Wi-Fi [8086:43f0] subsystem [1a56:1652]: Direct firmware load for (efault)128.ucode failed with error -2

[You-Sheng Yang]

[SRU Justification]

[Impact]

Intel AX210 Wi-Fi [8086:43f0] subsystem [1a56:1652] requests invalid
firmware path and fails device init:

  [ 4.146811] Intel(R) Wireless WiFi driver for Linux
  [ 4.146866] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
  [ 4.155371] iwlwifi 0000:00:14.3: Direct firmware load for (efault)128.ucode failed with error -2
  [ 4.155388] iwlwifi 0000:00:14.3: Direct firmware load for (efault)127.ucode failed with error -2
  ...
  [ 4.157058] iwlwifi 0000:00:14.3: Direct firmware load for (efault)1.ucode failed with error -2
  [ 4.157068] iwlwifi 0000:00:14.3: Direct firmware load for (efault)0.ucode failed with error -2
  [ 4.157070] iwlwifi 0000:00:14.3: no suitable firmware found!
  [ 4.157071] iwlwifi 0000:00:14.3: minimum version required: (efault)0
  [ 4.157072] iwlwifi 0000:00:14.3: maximum version supported: (efault)128
  [ 4.157073] iwlwifi 0000:00:14.3: check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git

This is a design flaw in iwlwifi driver source.

In drivers/net/wireless/intel/iwlwifi/pcie/drv.c

  static const struct pci_device_id iwl_hw_card_ids[] = {
    {IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg)},
    ...
    {IWL_PCI_DEVICE(0x43F0, PCI_ANY_ID, iwl_qu_long_latency_trans_cfg)},
    ...
  };

The third argument to IWL_PCI_DEVICE macro will be assigned to driver_data field
of struct pci_device_id. However, iwl5100_agn_cfg has type struct iwl_cfg, and
yet iwl_qu_long_latency_trans_cfg has type struct iwl_cfg_trans_params.

  struct iwl_cfg_trans_params {
    ...
  };

  struct iwl_cfg {
    struct iwl_cfg_trans_params trans;
    const char *name;
    const char *fw_name_pre;
    ...
  };

It's fine to cast a pointer to struct iwl_cfg, but it's not always valid to cast
a struct iwl_cfg_trans_params to struct iwl_cfg.

In function iwl_pci_probe, it tries to find an alternative cfg by iterating
throughout iwl_dev_info_table, but in our case, [8086:43f0] subsystem
[1a56:1652], all of the candidates will be skipped, and
iwl_qu_long_latency_trans_cfg will be assigned as the ultimate struct iwl_cfg,
which will be certainly wrong when you're trying to refer to anything beyond
sizeof(struct iwl_cfg_trans_params), e.g. cfg->fw_name_pre. In this case,
((struct iwl_cfg_trans_params*)&iwl_qu_long_latency_trans_cfg)->name will be
"'", and ((struct iwl_cfg_trans_params*)&iwl_qu_long_latency_trans_cfg)->fw_name_pre
gives "(efault)", pure garbage data.

[Fix]

Commit 410f758529bc ("iwlwifi: add new cards for So and Qu family") in v5.12-rc1
add a few additional entries to correctly catch this card.

[Test Case]

Booting from kernel built with aforementioned commit cherry-picked, WiFi
interface should be now up and working. Also tested this kernel against several
iwlwifi supported models on the target and a previous generation platform.

[Where problems could occur]

This card failed initialization previously. With it being up and running, it may
affect system stability if there are some undiscovered bugs related to this new
model.

[Other Info]

This change has been backported to stable kernel v5.11.4, so skipped nomination
for Hirsute/Unstable.

========== Original bug report ==========

00:14.3 Network controller [0280]: Intel Corporation Device [8086:43f0]
 Subsystem: Bigfoot Networks, Inc. Device [1a56:1652]
 Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Interrupt: pin A routed to IRQ 16
 Region 0: Memory at 603318c000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: <access denied>
 Kernel modules: iwlwifi

In dmesg:
[ 4.146811] Intel(R) Wireless WiFi driver for Linux
[ 4.146866] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
[ 4.155371] iwlwifi 0000:00:14.3: Direct firmware load for (efault)128.ucode failed with error -2
[ 4.155388] iwlwifi 0000:00:14.3: Direct firmware load for (efault)127.ucode failed with error -2
[ 4.155486] iwlwifi 0000:00:14.3: Direct firmware load for (efault)126.ucode failed with error -2
[ 4.155585] iwlwifi 0000:00:14.3: Direct firmware load for (efault)125.ucode failed with error -2
[ 4.155596] iwlwifi 0000:00:14.3: Direct firmware load for (efault)124.ucode failed with error -2
[ 4.155606] iwlwifi 0000:00:14.3: Direct firmware load for (efault)123.ucode failed with error -2
[ 4.155617] iwlwifi 0000:00:14.3: Direct firmware load for (efault)122.ucode failed with error -2
[ 4.155628] iwlwifi 0000:00:14.3: Direct firmware load for (efault)121.ucode failed with error -2
[ 4.155639] iwlwifi 0000:00:14.3: Direct firmware load for (efault)120.ucode failed with error -2
[ 4.155649] iwlwifi 0000:00:14.3: Direct firmware load for (efault)119.ucode failed with error -2
[ 4.155660] iwlwifi 0000:00:14.3: Direct firmware load for (efault)118.ucode failed with error -2
[ 4.155670] iwlwifi 0000:00:14.3: Direct firmware load for (efault)117.ucode failed with error -2
[ 4.155683] iwlwifi 0000:00:14.3: Direct firmware load for (efault)116.ucode failed with error -2
[ 4.155693] iwlwifi 0000:00:14.3: Direct firmware load for (efault)115.ucode failed with error -2
[ 4.155704] iwlwifi 0000:00:14.3: Direct firmware load for (efault)114.ucode failed with error -2
[ 4.155716] iwlwifi 0000:00:14.3: Direct firmware load for (efault)113.ucode failed with error -2
[ 4.155727] iwlwifi 0000:00:14.3: Direct firmware load for (efault)112.ucode failed with error -2
[ 4.155817] iwlwifi 0000:00:14.3: Direct firmware load for (efault)111.ucode failed with error -2
[ 4.155829] iwlwifi 0000:00:14.3: Direct firmware load for (efault)110.ucode failed with error -2
[ 4.155840] iwlwifi 0000:00:14.3: Direct firmware load for (efault)109.ucode failed with error -2
[ 4.155851] iwlwifi 0000:00:14.3: Direct firmware load for (efault)108.ucode failed with error -2
[ 4.155863] iwlwifi 0000:00:14.3: Direct firmware load for (efault)107.ucode failed with error -2
[ 4.155874] iwlwifi 0000:00:14.3: Direct firmware load for (efault)106.ucode failed with error -2
[ 4.155884] iwlwifi 0000:00:14.3: Direct firmware load for (efault)105.ucode failed with error -2
[ 4.155895] iwlwifi 0000:00:14.3: Direct firmware load for (efault)104.ucode failed with error -2
[ 4.155907] iwlwifi 0000:00:14.3: Direct firmware load for (efault)103.ucode failed with error -2
[ 4.155919] iwlwifi 0000:00:14.3: Direct firmware load for (efault)102.ucode failed with error -2
[ 4.155930] iwlwifi 0000:00:14.3: Direct firmware load for (efault)101.ucode failed with error -2
[ 4.155941] iwlwifi 0000:00:14.3: Direct firmware load for (efault)100.ucode failed with error -2
[ 4.155953] iwlwifi 0000:00:14.3: Direct firmware load for (efault)99.ucode failed with error -2
[ 4.155964] iwlwifi 0000:00:14.3: Direct firmware load for (efault)98.ucode failed with error -2
[ 4.155975] iwlwifi 0000:00:14.3: Direct firmware load for (efault)97.ucode failed with error -2
[ 4.155985] iwlwifi 0000:00:14.3: Direct firmware load for (efault)96.ucode failed with error -2
[ 4.155997] iwlwifi 0000:00:14.3: Direct firmware load for (efault)95.ucode failed with error -2
[ 4.156008] iwlwifi 0000:00:14.3: Direct firmware load for (efault)94.ucode failed with error -2
[ 4.156019] iwlwifi 0000:00:14.3: Direct firmware load for (efault)93.ucode failed with error -2
[ 4.156030] iwlwifi 0000:00:14.3: Direct firmware load for (efault)92.ucode failed with error -2
[ 4.156042] iwlwifi 0000:00:14.3: Direct firmware load for (efault)91.ucode failed with error -2
[ 4.156052] iwlwifi 0000:00:14.3: Direct firmware load for (efault)90.ucode failed with error -2
[ 4.156062] iwlwifi 0000:00:14.3: Direct firmware load for (efault)89.ucode failed with error -2
[ 4.156073] iwlwifi 0000:00:14.3: Direct firmware load for (efault)88.ucode failed with error -2
[ 4.156083] iwlwifi 0000:00:14.3: Direct firmware load for (efault)87.ucode failed with error -2
[ 4.156094] iwlwifi 0000:00:14.3: Direct firmware load for (efault)86.ucode failed with error -2
[ 4.156105] iwlwifi 0000:00:14.3: Direct firmware load for (efault)85.ucode failed with error -2
[ 4.156115] iwlwifi 0000:00:14.3: Direct firmware load for (efault)84.ucode failed with error -2
[ 4.156125] iwlwifi 0000:00:14.3: Direct firmware load for (efault)83.ucode failed with error -2
[ 4.156136] iwlwifi 0000:00:14.3: Direct firmware load for (efault)82.ucode failed with error -2
[ 4.156146] iwlwifi 0000:00:14.3: Direct firmware load for (efault)81.ucode failed with error -2
[ 4.156157] iwlwifi 0000:00:14.3: Direct firmware load for (efault)80.ucode failed with error -2
[ 4.156167] iwlwifi 0000:00:14.3: Direct firmware load for (efault)79.ucode failed with error -2
[ 4.156177] iwlwifi 0000:00:14.3: Direct firmware load for (efault)78.ucode failed with error -2
[ 4.156188] iwlwifi 0000:00:14.3: Direct firmware load for (efault)77.ucode failed with error -2
[ 4.156198] iwlwifi 0000:00:14.3: Direct firmware load for (efault)76.ucode failed with error -2
[ 4.156209] iwlwifi 0000:00:14.3: Direct firmware load for (efault)75.ucode failed with error -2
[ 4.156219] iwlwifi 0000:00:14.3: Direct firmware load for (efault)74.ucode failed with error -2
[ 4.156231] iwlwifi 0000:00:14.3: Direct firmware load for (efault)73.ucode failed with error -2
[ 4.156242] iwlwifi 0000:00:14.3: Direct firmware load for (efault)72.ucode failed with error -2
[ 4.156252] iwlwifi 0000:00:14.3: Direct firmware load for (efault)71.ucode failed with error -2
[ 4.156263] iwlwifi 0000:00:14.3: Direct firmware load for (efault)70.ucode failed with error -2
[ 4.156273] iwlwifi 0000:00:14.3: Direct firmware load for (efault)69.ucode failed with error -2
[ 4.156283] iwlwifi 0000:00:14.3: Direct firmware load for (efault)68.ucode failed with error -2
[ 4.156295] iwlwifi 0000:00:14.3: Direct firmware load for (efault)67.ucode failed with error -2
[ 4.156306] iwlwifi 0000:00:14.3: Direct firmware load for (efault)66.ucode failed with error -2
[ 4.156316] iwlwifi 0000:00:14.3: Direct firmware load for (efault)65.ucode failed with error -2
[ 4.156327] iwlwifi 0000:00:14.3: Direct firmware load for (efault)64.ucode failed with error -2
[ 4.156337] iwlwifi 0000:00:14.3: Direct firmware load for (efault)63.ucode failed with error -2
[ 4.156350] iwlwifi 0000:00:14.3: Direct firmware load for (efault)62.ucode failed with error -2
[ 4.156361] iwlwifi 0000:00:14.3: Direct firmware load for (efault)61.ucode failed with error -2
[ 4.156371] iwlwifi 0000:00:14.3: Direct firmware load for (efault)60.ucode failed with error -2
[ 4.156382] iwlwifi 0000:00:14.3: Direct firmware load for (efault)59.ucode failed with error -2
[ 4.156393] iwlwifi 0000:00:14.3: Direct firmware load for (efault)58.ucode failed with error -2
[ 4.156404] iwlwifi 0000:00:14.3: Direct firmware load for (efault)57.ucode failed with error -2
[ 4.156414] iwlwifi 0000:00:14.3: Direct firmware load for (efault)56.ucode failed with error -2
[ 4.156425] iwlwifi 0000:00:14.3: Direct firmware load for (efault)55.ucode failed with error -2
[ 4.156437] iwlwifi 0000:00:14.3: Direct firmware load for (efault)54.ucode failed with error -2
[ 4.156448] iwlwifi 0000:00:14.3: Direct firmware load for (efault)53.ucode failed with error -2
[ 4.156459] iwlwifi 0000:00:14.3: Direct firmware load for (efault)52.ucode failed with error -2
[ 4.156471] iwlwifi 0000:00:14.3: Direct firmware load for (efault)51.ucode failed with error -2
[ 4.156483] iwlwifi 0000:00:14.3: Direct firmware load for (efault)50.ucode failed with error -2
[ 4.156495] iwlwifi 0000:00:14.3: Direct firmware load for (efault)49.ucode failed with error -2
[ 4.156506] iwlwifi 0000:00:14.3: Direct firmware load for (efault)48.ucode failed with error -2
[ 4.156517] iwlwifi 0000:00:14.3: Direct firmware load for (efault)47.ucode failed with error -2
[ 4.156531] iwlwifi 0000:00:14.3: Direct firmware load for (efault)46.ucode failed with error -2
[ 4.156541] iwlwifi 0000:00:14.3: Direct firmware load for (efault)45.ucode failed with error -2
[ 4.156551] iwlwifi 0000:00:14.3: Direct firmware load for (efault)44.ucode failed with error -2
[ 4.156561] iwlwifi 0000:00:14.3: Direct firmware load for (efault)43.ucode failed with error -2
[ 4.156571] iwlwifi 0000:00:14.3: Direct firmware load for (efault)42.ucode failed with error -2
[ 4.156582] iwlwifi 0000:00:14.3: Direct firmware load for (efault)41.ucode failed with error -2
[ 4.156591] iwlwifi 0000:00:14.3: Direct firmware load for (efault)40.ucode failed with error -2
[ 4.156601] iwlwifi 0000:00:14.3: Direct firmware load for (efault)39.ucode failed with error -2
[ 4.156613] iwlwifi 0000:00:14.3: Direct firmware load for (efault)38.ucode failed with error -2
[ 4.156622] iwlwifi 0000:00:14.3: Direct firmware load for (efault)37.ucode failed with error -2
[ 4.156631] iwlwifi 0000:00:14.3: Direct firmware load for (efault)36.ucode failed with error -2
[ 4.156642] iwlwifi 0000:00:14.3: Direct firmware load for (efault)35.ucode failed with error -2
[ 4.156652] iwlwifi 0000:00:14.3: Direct firmware load for (efault)34.ucode failed with error -2
[ 4.156662] iwlwifi 0000:00:14.3: Direct firmware load for (efault)33.ucode failed with error -2
[ 4.156672] iwlwifi 0000:00:14.3: Direct firmware load for (efault)32.ucode failed with error -2
[ 4.156682] iwlwifi 0000:00:14.3: Direct firmware load for (efault)31.ucode failed with error -2
[ 4.156692] iwlwifi 0000:00:14.3: Direct firmware load for (efault)30.ucode failed with error -2
[ 4.156703] iwlwifi 0000:00:14.3: Direct firmware load for (efault)29.ucode failed with error -2
[ 4.156712] iwlwifi 0000:00:14.3: Direct firmware load for (efault)28.ucode failed with error -2
[ 4.156721] iwlwifi 0000:00:14.3: Direct firmware load for (efault)27.ucode failed with error -2
[ 4.156732] iwlwifi 0000:00:14.3: Direct firmware load for (efault)26.ucode failed with error -2
[ 4.156742] iwlwifi 0000:00:14.3: Direct firmware load for (efault)25.ucode failed with error -2
[ 4.156751] iwlwifi 0000:00:14.3: Direct firmware load for (efault)24.ucode failed with error -2
[ 4.156761] iwlwifi 0000:00:14.3: Direct firmware load for (efault)23.ucode failed with error -2
[ 4.156772] iwlwifi 0000:00:14.3: Direct firmware load for (efault)22.ucode failed with error -2
[ 4.156782] iwlwifi 0000:00:14.3: Direct firmware load for (efault)21.ucode failed with error -2
[ 4.156792] iwlwifi 0000:00:14.3: Direct firmware load for (efault)20.ucode failed with error -2
[ 4.156802] iwlwifi 0000:00:14.3: Direct firmware load for (efault)19.ucode failed with error -2
[ 4.156814] iwlwifi 0000:00:14.3: Direct firmware load for (efault)18.ucode failed with error -2
[ 4.156825] iwlwifi 0000:00:14.3: Direct firmware load for (efault)17.ucode failed with error -2
[ 4.156834] iwlwifi 0000:00:14.3: Direct firmware load for (efault)16.ucode failed with error -2
[ 4.156843] iwlwifi 0000:00:14.3: Direct firmware load for (efault)15.ucode failed with error -2
[ 4.156854] iwlwifi 0000:00:14.3: Direct firmware load for (efault)14.ucode failed with error -2
[ 4.156916] iwlwifi 0000:00:14.3: Direct firmware load for (efault)13.ucode failed with error -2
[ 4.156930] iwlwifi 0000:00:14.3: Direct firmware load for (efault)12.ucode failed with error -2
[ 4.156942] iwlwifi 0000:00:14.3: Direct firmware load for (efault)11.ucode failed with error -2
[ 4.156957] iwlwifi 0000:00:14.3: Direct firmware load for (efault)10.ucode failed with error -2
[ 4.156969] iwlwifi 0000:00:14.3: Direct firmware load for (efault)9.ucode failed with error -2
[ 4.156982] iwlwifi 0000:00:14.3: Direct firmware load for (efault)8.ucode failed with error -2
[ 4.156994] iwlwifi 0000:00:14.3: Direct firmware load for (efault)7.ucode failed with error -2
[ 4.157004] iwlwifi 0000:00:14.3: Direct firmware load for (efault)6.ucode failed with error -2
[ 4.157015] iwlwifi 0000:00:14.3: Direct firmware load for (efault)5.ucode failed with error -2
[ 4.157027] iwlwifi 0000:00:14.3: Direct firmware load for (efault)4.ucode failed with error -2
[ 4.157037] iwlwifi 0000:00:14.3: Direct firmware load for (efault)3.ucode failed with error -2
[ 4.157048] iwlwifi 0000:00:14.3: Direct firmware load for (efault)2.ucode failed with error -2
[ 4.157058] iwlwifi 0000:00:14.3: Direct firmware load for (efault)1.ucode failed with error -2
[ 4.157068] iwlwifi 0000:00:14.3: Direct firmware load for (efault)0.ucode failed with error -2
[ 4.157070] iwlwifi 0000:00:14.3: no suitable firmware found!
[ 4.157071] iwlwifi 0000:00:14.3: minimum version required: (efault)0
[ 4.157072] iwlwifi 0000:00:14.3: maximum version supported: (efault)128
[ 4.157073] iwlwifi 0000:00:14.3: check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git

Reported to IHV in private mail thread and public linux-wireless mailing list https://lore<email address hidden>/T/#u

[You-Sheng Yang (vicamo)]

The potential fix is:
https://patchwork.kernel.org/project/linux-wireless/patch/iwlwifi.20210122144849.bddbf9b57a75.I16e09e2b1404b16bfff70852a5a654aa468579e2@changeid/

PPA: https://launchpad.net/~vicamo/+archive/ubuntu/ppa-1913259

[You-Sheng Yang (vicamo)]

Kernel in comment #1 doesn't work.

[Jeremy (wa113y3s)]

Might need to email the Intel Linux wifi devs on this one. I don't see an exact match in linux-next or the Intel backports for this device

[You-Sheng Yang (vicamo)]

https://patchwork.kernel.org/project/linux-wireless/patch/iwlwifi.20210206130110.6f0c1849f7dc.I647b4d22f9468c2f34b777a4bfa445912c6f04f0@changeid/

This depends on at least patch 5/12 ("iwlwifi: move SnJ and So rules to the new tables") from https://<email address hidden>/ in linux-next for Hirsute, and also depends on patch 3/7 ("iwlwifi: pcie: add rules to match Qu with Hr2") and 5/7 ("iwlwifi: Fix IWL_SUBDEVICE_NO_160 macro to use the correct bit") from patchset https://<email address hidden>/ that has been merged to v5.11 mainline.

Still trying to figure out the minimum working solution for Groovy v5.8. For Focal oem-5.10/Hirsute generic-5.11, test kernel should be available in PPA https://launchpad.net/~vicamo/+archive/ubuntu/ppa-1913259 in a few hours.

[You-Sheng Yang (vicamo)]

* https://code.launchpad.net/~vicamo/+git/ubuntu-kernel/+ref/bug-1913259/new-cards-So-Qu/unstable:
  - breaks 9260NGW
  - breaks AX210
* https://code.launchpad.net/~vicamo/+git/ubuntu-kernel/+ref/bug-1913259/new-cards-So-Qu/oem-5.10
  - poor upload bw with 9260NGW
  - breaks AX210

So need to find a complete set before we may propose a patchset.

[You-Sheng Yang (vicamo)]

Commit 410f758529bc ("iwlwifi: add new cards for So and Qu family") was firstly landed to v5.12-rc1 and was then backported to v5.11.4 as commit d1ea54ae3a77. So with Ubuntu kernel 5.12.0-1-generic or newer (from https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/unstable), it is supported for sure.

For Hirsute 5.11 kernels (from https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/bootstrap?field.series_filter=hirsute), the lastest one is 5.11.0-12-generic, which is based on v5.11.7, also supports this card flawlessly. But interestingly, "iwlwifi: move SnJ and So rules to the new tables" suggested in comment #4 is not included in the history of 5.11.0-12-generic, so it's not a hard requirement for this issue. We should retry back porting without it on oem-5.10 or so.

[You-Sheng Yang (vicamo)]

Mark bug status in Hirsute as INVALID for it already receives fix as stated previously. Mark Groovy as WONTFIX as well.

[You-Sheng Yang (vicamo)]

Tested in a AN 100Mbps wireless network:

* Killer1650i [8086:43f0] subsystem [1a56:1652]
  * G15-TGL-DVT2-C2
    * 5.10.0-2017.18+lp1913259.1.new.card.so.qu: download 70Mbps, upload 97Mbps
* AX201 [8086:43f0] subsystem [8086:0074]
  * G15-TGL-DVT2-C2
    * 5.10.0-2017.18+lp1913259.1.new.card.so.qu: download 70Mbps, upload 97Mbps
    * 5.10.0-1017: download 80, upload 90
* 9260 [8086:2526] subsystem [8086:0010]
  * G15-TGL-DVT2-C2
    * 5.10.0-2017.18+lp1913259.1.new.card.so.qu: download 80Mbps, upload 1.2Mbps
    * 5.10.0-1017: same poor upload rate
    * 5.8.0-45-generic: same poor upload rate
    * 5.6.0-1050-oem: same poor upload rate
    * 5.4.0-67-generic: download 18Mbps, upload 49.56Mbps
  * KRM3-DVT2-C1
    * 5.10.0-2017.18+lp1913259.1.new.card.so.qu: download 80Mbps, upload 83Mbps
    * 5.10.0-1017: download 89Mbps, upload 1Mbps
* 8265 [8086:24fd] subsystem [8086:0010]
  * KRM3-DVT2-C1
    * 5.10.0-2017.18+lp1913259.1.new.card.so.qu: ok

So I think the most correct interpretation for these results is that 9260 has been broken at upload rate for a while, and it takes a few conditions in both hw and sw to fix. This backport should be good and I'm going to SRU it.

[You-Sheng Yang (vicamo)]

SRU: https://lists.ubuntu.com/archives/kernel-team/2021-March/118264.html (oem-5.10)

[Timo Aaltonen (tjaalton)]

please fix the description to match SRU guidelines

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[You-Sheng Yang (vicamo)]

verified linux-oem-5.10 version 5.10.0-1020.21 from focal-proposed.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-oem-5.10 - 5.10.0-1021.22

---------------
linux-oem-5.10 (5.10.0-1021.22) focal; urgency=medium

  * focal/linux-oem-5.10: 5.10.0-1021.22 -proposed tracker (LP: #1922921)

  * Display abnormal on the TGL+4k panel machines (LP: #1922885)
    - drm/i915/display: Do not allow DC3CO if PSR SF is enabled
    - SAUCE: drm/i915/display/psr: Disable DC3CO when the PSR2 is used

  * Fix mic on P620 after S3 resume (LP: #1921757)
    - ALSA: usb-audio: Carve out connector value checking into a helper
    - ALSA: usb-audio: Check connector value on resume

 -- Timo Aaltonen <email address hidden> Wed, 07 Apr 2021 18:07:55 +0300