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我做过的事

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我做过的事

如何在 Dell Precision 3560 上配置和优化 Ubuntu？

该机器经过 Ubuntu 认证

我是一名 DevOps 工程师，我也将这台机器用于我的家庭录音室录制音乐。我需要 Wifi、蓝牙和带有实时内核的清晰声音链。

我的机器附带有 Windows，但我知道它可能附带有 Ubuntu 20.04，因此我很想听听任何使用 Ubuntu 的机器的人对工厂进行的调整，尤其是内核启动参数。

答案1

我做过的事

  1. 安装了 UbuntuStudio 20.10，然后使用以下命令升级到 21.04：do-release-upgrade -d

  2. 的结果uname -a

    5.11.0-13-lowlatency #14-Ubuntu SMP PREEMPT Fri Mar 19 18:13:56 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

  3. 确保已安装 linux-firmware

    sudo apt install linux-firmware

  4. wifi是Intel AX201，相关数据可参见https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi

    本页提供的用于获取该 wifi 卡特定固件的链接已完全过时。应下载以下链接提供的固件：https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git

    例如 linux-firmware-20210315.tar.gz，这是我撰写本文时的最新版本。

    wget -O /tmp/linux-firmware-20210315.tar.gz https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/snapshot/linux-firmware-20210315.tar.gz
cd /tmp/
tar xfz linux-firmware-20210315.tar.gz

    在此阶段，比较一下此档案中的内容、系统中已有的内容以及我提到的过时链接中的内容是很有趣的：

    cd /tmp/
wget -O https://wireless.wiki.kernel.org/_media/en/users/drivers/iwlwifi/iwlwifi-qu-48.13675109.0.tgz
tar xfz iwlwifi-qu-48.13675109.0.tgz
cd wlwifi-Qu-48.13675109.0
for i in /tmp/iwlwifi-Qu-48.13675109.0/iwlwifi-Qu-* ;do  d=$(echo $i | cut -d/ -f 4) ;\
    md5sum /lib/firmware/$d ;\
    md5sum /tmp/iwlwifi-Qu-48.13675109.0/$d ;\
    md5sum /tmp/linux-firmware-20210315/$d;echo;\
done

    最后一个命令的结果如下：

    4b5d629ac5b4a1e117b1ac2b4015cd67  /lib/firmware/iwlwifi-Qu-b0-hr-b0-48.ucode
292972c64b0939e4a9c85260a2605077  /tmp/iwlwifi-Qu-48.13675109.0/iwlwifi-Qu-b0-hr-b0-48.ucode
4b5d629ac5b4a1e117b1ac2b4015cd67  /tmp/linux-firmware-20210315/iwlwifi-Qu-b0-hr-b0-48.ucode

8123d7111ab0ef605e63d71bcbd6a3a6  /lib/firmware/iwlwifi-Qu-b0-jf-b0-48.ucode
ece6e6651021f5b598ce9b930aa85ee3  /tmp/iwlwifi-Qu-48.13675109.0/iwlwifi-Qu-b0-jf-b0-48.ucode
8123d7111ab0ef605e63d71bcbd6a3a6  /tmp/linux-firmware-20210315/iwlwifi-Qu-b0-jf-b0-48.ucode

16e59dd2792af9a569a958ff92bd3679  /lib/firmware/iwlwifi-Qu-c0-hr-b0-48.ucode
92c163abb627018a36d0b772fc7f9328  /tmp/iwlwifi-Qu-48.13675109.0/iwlwifi-Qu-c0-hr-b0-48.ucode
16e59dd2792af9a569a958ff92bd3679  /tmp/linux-firmware-20210315/iwlwifi-Qu-c0-hr-b0-48.ucode

fa192c1c7b6592ed81b58673431ffd72  /lib/firmware/iwlwifi-Qu-c0-jf-b0-48.ucode
43b1df97a1ad32b9964df5cb0befdbd7  /tmp/iwlwifi-Qu-48.13675109.0/iwlwifi-Qu-c0-jf-b0-48.ucode
fa192c1c7b6592ed81b58673431ffd72  /tmp/linux-firmware-20210315/iwlwifi-Qu-c0-jf-b0-48.ucode

    所以现在我知道我拥有最新的可用版本，并且来自 iwlifi 档案的版本已经过时了。

我仍然面临的问题

  1. 我的蓝牙扬声器的 A2DP 蓝牙接收器不稳定，在 /var/log/syslog 中出现如下行：

    hci0: urb 00000000bb1ddbc1 submission failed (90)

    hci0: sending frame failed (-90)

    hci0: SCO packet for unknown connection handle 0

硬件规格

我的硬件规格如下：

0000:00:00.0 Host bridge: Intel Corporation 11th Gen Core Processor Host Bridge/DRAM Registers (rev 01)
0000:00:02.0 VGA compatible controller: Intel Corporation TigerLake GT2 [Iris Xe Graphics] (rev 01)
0000:00:04.0 Signal processing controller: Intel Corporation Device 9a03 (rev 01)
0000:00:06.0 System peripheral: Intel Corporation Device 09ab
0000:00:07.0 PCI bridge: Intel Corporation Tiger Lake-LP Thunderbolt 4 PCI Express Root Port #0 (rev 01)
0000:00:07.1 PCI bridge: Intel Corporation Tiger Lake-LP Thunderbolt 4 PCI Express Root Port #1 (rev 01)
0000:00:0a.0 Signal processing controller: Intel Corporation Device 9a0d (rev 01)
0000:00:0d.0 USB controller: Intel Corporation Tiger Lake-LP Thunderbolt 4 USB Controller (rev 01)
0000:00:0d.2 USB controller: Intel Corporation Tiger Lake-LP Thunderbolt 4 NHI #0 (rev 01)
0000:00:0e.0 RAID bus controller: Intel Corporation Volume Management Device NVMe RAID Controller
0000:00:12.0 Serial controller: Intel Corporation Tiger Lake-LP Integrated Sensor Hub (rev 20)
0000:00:14.0 USB controller: Intel Corporation Tiger Lake-LP USB 3.2 Gen 2x1 xHCI Host Controller (rev 20)
0000:00:14.2 RAM memory: Intel Corporation Tiger Lake-LP Shared SRAM (rev 20)
0000:00:14.3 Network controller: Intel Corporation Wi-Fi 6 AX201 (rev 20)
0000:00:15.0 Serial bus controller [0c80]: Intel Corporation Tiger Lake-LP Serial IO I2C Controller #0 (rev 20)
0000:00:15.1 Serial bus controller [0c80]: Intel Corporation Tiger Lake-LP Serial IO I2C Controller #1 (rev 20)
0000:00:16.0 Communication controller: Intel Corporation Tiger Lake-LP Management Engine Interface (rev 20)
0000:00:17.0 System peripheral: Intel Corporation Device 09ab
0000:00:1c.0 PCI bridge: Intel Corporation Device a0be (rev 20)
0000:00:1d.0 System peripheral: Intel Corporation Device 09ab
0000:00:1f.0 ISA bridge: Intel Corporation Tiger Lake-LP LPC Controller (rev 20)
0000:00:1f.3 Audio device: Intel Corporation Tiger Lake-LP Smart Sound Technology Audio Controller (rev 20)
0000:00:1f.4 SMBus: Intel Corporation Tiger Lake-LP SMBus Controller (rev 20)
0000:00:1f.5 Serial bus controller [0c80]: Intel Corporation Tiger Lake-LP SPI Controller (rev 20)
0000:00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (13) I219-V (rev 20)
0000:55:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01)
10000:e0:06.0 PCI bridge: Intel Corporation 11th Gen Core Processor PCIe Controller (rev 01)
10000:e0:17.0 SATA controller: Intel Corporation Device a0d3 (rev 20)
10000:e0:1d.0 PCI bridge: Intel Corporation Tiger Lake-LP PCI Express Root Port #9 (rev 20)
10000:e1:00.0 Non-Volatile memory controller: Micron Technology Inc Device 5405
10000:e2:00.0 Non-Volatile memory controller: Micron Technology Inc Device 5405

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