{"id":6119,"date":"2026-08-24T23:11:35","date_gmt":"2026-08-24T14:11:35","guid":{"rendered":"https:\/\/eternalsphere.net\/echoes\/?p=6119"},"modified":"2026-09-12T17:16:54","modified_gmt":"2026-09-12T08:16:54","slug":"esz1hfawwc8cdls","status":"publish","type":"post","link":"https:\/\/blog.eternalsphere.net\/index.php\/2026\/08\/24\/esz1hfawwc8cdls\/","title":{"rendered":"Arch Linux \u4e0b Broadcom BCM4350C0 \u84dd\u7259\u63a7\u5236\u5668\u521d\u59cb\u5316\u5931\u8d25\u4e0e SMC \u91cd\u7f6e\u4fee\u590d\u8bb0\u5f55"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5728\u90e8\u5206\u91c7\u7528 Broadcom \u84dd\u7259\u63a7\u5236\u5668\u7684 Intel Mac \u786c\u4ef6\u4e0a\uff0cArch Linux \u53ef\u80fd\u80fd\u591f\u8bc6\u522b\u84dd\u7259\u786c\u4ef6\uff0c\u5374\u65e0\u6cd5\u771f\u6b63\u521b\u5efa\u53ef\u7528\u7684 BlueZ \u63a7\u5236\u5668\u3002\u5178\u578b\u8868\u73b0\u662f\u7cfb\u7edf\u5df2\u7ecf\u52a0\u8f7d\u84dd\u7259\u9a71\u52a8\u3001<code>rfkill<\/code> \u4e5f\u80fd\u770b\u5230 <code>hci0<\/code>\uff0c\u4f46 KDE \u4e2d\u6ca1\u6709\u84dd\u7259\u56fe\u6807\uff0c<code>bluetoothctl<\/code> \u65e0\u6cd5\u5217\u51fa\u63a7\u5236\u5668\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u7c7b\u95ee\u9898\u5e76\u4e0d\u4e00\u5b9a\u610f\u5473\u7740 Linux \u7f3a\u5c11\u9a71\u52a8\uff0c\u4e5f\u4e0d\u4e00\u5b9a\u9700\u8981\u989d\u5916\u5b89\u88c5\u56fa\u4ef6\u3002\u5bf9\u4e8e BCM4350C0 \u8fd9\u7c7b\u901a\u8fc7 UART \u8fde\u63a5\u7684\u63a7\u5236\u5668\uff0c\u95ee\u9898\u53ef\u80fd\u51fa\u5728\u63a7\u5236\u5668\u81ea\u8eab\u4fdd\u7559\u7684\u901a\u4fe1\u72b6\u6001\uff0c\u5c24\u5176\u662f UART \u6ce2\u7279\u7387\u72b6\u6001\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6545\u969c\u73b0\u8c61<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7cfb\u7edf\u5df2\u7ecf\u5b89\u88c5\u5e76\u542f\u7528\u4e86 BlueZ\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>pacman -Q bluez bluez-utils\nsystemctl status bluetooth\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ed3\u679c\u663e\u793a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>bluez 5.87-2\nbluez-utils 5.87-2\n\nbluetooth.service\nActive: active (running)\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bf4\u660e\u7528\u6237\u7a7a\u95f4\u7684 Bluetooth \u670d\u52a1\u672c\u8eab\u6b63\u5e38\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ee7\u7eed\u68c0\u67e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>bluetoothctl list\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ca1\u6709\u4efb\u4f55\u8f93\u51fa\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo btmgmt info\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5219\u663e\u793a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Index list with 0 items\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u8bf4\u660e BlueZ \u670d\u52a1\u867d\u7136\u6b63\u5e38\u8fd0\u884c\uff0c\u4f46\u5185\u6838\u5e76\u6ca1\u6709\u6210\u529f\u5411\u5b83\u63d0\u4f9b\u4e00\u4e2a\u53ef\u4f7f\u7528\u7684 HCI Controller\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u786e\u8ba4\u786c\u4ef6\u662f\u5426\u5b58\u5728<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\u68c0\u67e5 <code>rfkill<\/code>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>rfkill list\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u770b\u5230\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>0: hci0: Bluetooth\n        Soft blocked: no\n        Hard blocked: no\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u975e\u5e38\u91cd\u8981\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b83\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u84dd\u7259\u8bbe\u5907\u786e\u5b9e\u5df2\u7ecf\u88ab\u5185\u6838\u53d1\u73b0<\/li>\n\n\n\n<li>\u8bbe\u5907\u6ca1\u6709\u88ab\u8f6f\u4ef6\u7981\u7528<\/li>\n\n\n\n<li>\u8bbe\u5907\u6ca1\u6709\u88ab\u786c\u4ef6\u7981\u7528<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\u95ee\u9898\u5e76\u4e0d\u662f\u7b80\u5355\u7684 Bluetooth \u5f00\u5173\u72b6\u6001\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u518d\u68c0\u67e5\u5185\u6838\u6a21\u5757\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>lsmod | grep -E 'btusb|btbcm|hci_uart|bluetooth'\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u770b\u5230\u7c7b\u4f3c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hci_uart\nbtbcm\nbluetooth\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2d\u6700\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hci_uart\nbtbcm\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u8bf4\u660e\u8be5 Broadcom \u84dd\u7259\u63a7\u5236\u5668\u901a\u8fc7 UART \u63a5\u5165\uff0c\u800c\u4e0d\u662f\u666e\u901a USB \u84dd\u7259\u8bbe\u5907\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>lsusb | grep -i bluetooth\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ca1\u6709\u7ed3\u679c\u5e76\u4e0d\u4ee3\u8868\u84dd\u7259\u786c\u4ef6\u4e0d\u5b58\u5728\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ece\u5185\u6838\u65e5\u5fd7\u627e\u5230\u771f\u6b63\u7684\u6545\u969c\u70b9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5173\u952e\u7684\u8bca\u65ad\u547d\u4ee4\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo journalctl -b -k --no-pager |\n    grep -iE 'bluetooth|hci0|hci_uart|bcm|firmware|baud|ttyS'\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u65e5\u5fd7\u4e2d\u51fa\u73b0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dw-apb-uart.2: ttyS4 at MMIO ... base_baud = 3000000\nserial serial0: tty port ttyS4 registered\n\nBluetooth: HCI UART driver ver 2.3\nBluetooth: HCI UART protocol Broadcom registered\n\nhci_uart_bcm serial0-0: Unexpected ACPI gpio_int_idx: -1\nhci_uart_bcm serial0-0: Unexpected number of ACPI GPIOs: 0\nhci_uart_bcm serial0-0: No reset resource, using default baud rate\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u968f\u540e\u51fa\u73b0\u771f\u6b63\u5bfc\u81f4\u521d\u59cb\u5316\u5931\u8d25\u7684\u4fe1\u606f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Bluetooth: hci0: command 0xfc18 tx timeout\nBluetooth: hci0: BCM: failed to write update baudrate (-110)\nBluetooth: hci0: Failed to set baudrate\nBluetooth: hci0: command 0xfc18 tx timeout\nBluetooth: hci0: BCM: Reset failed (-110)\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u81f3\u6b64\u57fa\u672c\u53ef\u4ee5\u786e\u5b9a\u95ee\u9898\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Linux \u5df2\u7ecf\u6b63\u786e\u8bc6\u522b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>UART \u63a7\u5236\u5668<\/li>\n\n\n\n<li>Broadcom HCI UART \u534f\u8bae<\/li>\n\n\n\n<li><code>hci_uart_bcm<\/code><\/li>\n\n\n\n<li>BCM \u84dd\u7259\u8bbe\u5907<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f46\u662f\u5728\u5c1d\u8bd5\u4fee\u6539\u84dd\u7259\u63a7\u5236\u5668 UART \u6ce2\u7279\u7387\u65f6\uff0c\u63a7\u5236\u5668\u6ca1\u6709\u6b63\u5e38\u54cd\u5e94\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9519\u8bef\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-110\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u5e94\u8d85\u65f6\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u95ee\u9898\u672c\u8d28\uff1aUART \u4e24\u7aef\u901a\u4fe1\u72b6\u6001\u4e0d\u4e00\u81f4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">BCM4350C0 \u84dd\u7259\u63a7\u5236\u5668\u901a\u8fc7 UART \u4e0e\u7cfb\u7edf\u901a\u4fe1\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u521d\u59cb\u5316\u65f6\uff0c\u4e3b\u673a\u548c\u84dd\u7259\u82af\u7247\u5fc5\u987b\u5148\u4f7f\u7528\u4e00\u81f4\u7684\u6ce2\u7279\u7387\u8fdb\u884c\u901a\u4fe1\uff0c\u7136\u540e\u624d\u80fd\u8fdb\u4e00\u6b65\u5207\u6362\u5230\u66f4\u9ad8\u901f\u5ea6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u65e5\u5fd7\u4e2d\u7684\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>No reset resource, using default baud rate\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u610f\u5473\u7740 Linux \u65e0\u6cd5\u901a\u8fc7\u6b63\u5e38\u7684 ACPI GPIO reset \u673a\u5236\u5b8c\u6574\u590d\u4f4d\u8fd9\u4e2a\u63a7\u5236\u5668\uff0c\u4e8e\u662f\u53ea\u80fd\u5047\u5b9a\u63a7\u5236\u5668\u5f53\u524d\u5904\u4e8e\u9ed8\u8ba4\u901a\u4fe1\u72b6\u6001\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u84dd\u7259\u82af\u7247\u6b64\u524d\u5df2\u7ecf\u88ab\u53e6\u4e00\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u8bbe\u7f6e\u6210\u4e86\u4e0d\u540c\u7684 UART \u72b6\u6001\uff0c\u4f8b\u5982\u66f4\u9ad8\u7684\u6ce2\u7279\u7387\uff0c\u800c\u63a7\u5236\u5668\u53c8\u6ca1\u6709\u5728\u666e\u901a\u91cd\u542f\u8fc7\u7a0b\u4e2d\u5f7b\u5e95\u6062\u590d\u9ed8\u8ba4\u72b6\u6001\uff0c\u5c31\u4f1a\u4ea7\u751f\u4e00\u4e2a\u5178\u578b\u95ee\u9898\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Linux \u4e3b\u673a\uff1a\u4f7f\u7528\u9ed8\u8ba4 baud rate \u53d1\u9001\u547d\u4ee4\nBluetooth \u63a7\u5236\u5668\uff1a\u4ecd\u7136\u5de5\u4f5c\u5728\u4e4b\u524d\u7559\u4e0b\u7684 baud rate\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u53cc\u65b9\u6ce2\u7279\u7387\u4e0d\u4e00\u81f4\uff0c\u5f7c\u6b64\u81ea\u7136\u65e0\u6cd5\u7406\u89e3\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ed3\u679c\u5c31\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>command 0xfc18 tx timeout\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u968f\u540e\u6ce2\u7279\u7387\u4fee\u6539\u548c\u63a7\u5236\u5668 Reset \u90fd\u5931\u8d25\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e5f\u89e3\u91ca\u4e86\u4e00\u4e2a\u770b\u4f3c\u77db\u76fe\u7684\u73b0\u8c61\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>rfkill \u80fd\u770b\u5230 hci0\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f46\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>bluetoothctl list\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5374\u4ec0\u4e48\u90fd\u6ca1\u6709\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e95\u5c42 UART \u8bbe\u5907\u5b58\u5728\uff0c\u4f46 HCI Controller \u6ca1\u6709\u6210\u529f\u5b8c\u6210\u521d\u59cb\u5316\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4fee\u590d\u65b9\u6cd5\uff1a\u5f7b\u5e95\u5173\u673a\u5e76\u91cd\u7f6e SMC<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u79cd\u60c5\u51b5\u4e0b\u6ca1\u6709\u7acb\u5373\u5b89\u88c5\u989d\u5916\u9a71\u52a8\uff0c\u4e5f\u6ca1\u6709\u4fee\u6539 BlueZ \u914d\u7f6e\uff0c\u800c\u662f\u5148\u5f7b\u5e95\u5173\u95ed\u7cfb\u7edf\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo poweroff\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u968f\u540e\u6267\u884c SMC Reset\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u91c7\u7528\u4f20\u7edf Intel SMC \u7684\u76f8\u5173 Mac \u786c\u4ef6\uff0c\u53ef\u4ee5\u5728\u5b8c\u5168\u5173\u673a\u4e4b\u540e\uff0c\u901a\u8fc7\u5185\u7f6e\u952e\u76d8\u6267\u884c\u5bf9\u5e94\u7684 SMC \u91cd\u7f6e\u7ec4\u5408\u952e\uff0c\u7136\u540e\u518d\u6b63\u5e38\u542f\u52a8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b8c\u6210 SMC Reset \u540e\u76f4\u63a5\u8fdb\u5165 Arch Linux\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u542f\u52a8\u5b8c\u6210\u540e\uff0c\u7cfb\u7edf\u4efb\u52a1\u680f\u7acb\u5373\u51fa\u73b0\u4e86\u84dd\u7259\u56fe\u6807\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e5f\u5c31\u662f\u8bf4\uff0c\u84dd\u7259\u63a7\u5236\u5668\u5df2\u7ecf\u91cd\u65b0\u88ab\u7cfb\u7edf\u6b63\u5e38\u521d\u59cb\u5316\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u518d\u6b21\u68c0\u67e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>bluetoothctl list\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u65f6\u5e94\u8be5\u80fd\u591f\u770b\u5230\u5b9e\u9645\u7684 Controller\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e5f\u53ef\u4ee5\u8fd0\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo btmgmt info\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u786e\u8ba4 BlueZ Management Interface \u5df2\u7ecf\u5b58\u5728\u6709\u6548\u7684 Bluetooth Index\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u7ec8\u84dd\u7259\u529f\u80fd\u6062\u590d\u6b63\u5e38\uff0c\u53ef\u4ee5\u6b63\u5e38\u641c\u7d22\u3001\u914d\u5bf9\u5e76\u4f7f\u7528\u84dd\u7259\u8033\u673a\u7b49\u8bbe\u5907\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48 SMC Reset \u6709\u6548<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SMC Reset \u4e0e\u91cd\u65b0\u5b89\u88c5\u9a71\u52a8\u5b8c\u5168\u4e0d\u540c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6b21\u6545\u969c\u4e2d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Linux \u84dd\u7259\u9a71\u52a8\u5df2\u7ecf\u5b58\u5728<\/li>\n\n\n\n<li>BlueZ \u5df2\u7ecf\u6b63\u5e38\u8fd0\u884c<\/li>\n\n\n\n<li>Broadcom UART \u9a71\u52a8\u5df2\u7ecf\u52a0\u8f7d<\/li>\n\n\n\n<li>\u5185\u6838\u5df2\u7ecf\u68c0\u6d4b\u5230 <code>hci0<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u771f\u6b63\u5f02\u5e38\u7684\u662f\u84dd\u7259\u63a7\u5236\u5668\u81ea\u8eab\u6240\u5904\u7684\u786c\u4ef6\u72b6\u6001\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u666e\u901a warm reboot \u5e76\u4e0d\u4e00\u5b9a\u80fd\u591f\u8ba9\u6240\u6709\u5916\u56f4\u63a7\u5236\u5668\u5b8c\u5168\u65ad\u7535\u5e76\u6062\u590d\u51fa\u5382\u521d\u59cb\u5316\u72b6\u6001\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SMC Reset \u53ef\u4ee5\u91cd\u65b0\u521d\u59cb\u5316\u76f8\u5173\u5e95\u5c42\u786c\u4ef6\u7ba1\u7406\u72b6\u6001\uff0c\u4ece\u800c\u4f7f BCM4350C0 \u56de\u5230 Linux \u9a71\u52a8\u80fd\u591f\u6b63\u786e\u901a\u4fe1\u7684\u72b6\u6001\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e4b\u540e Linux \u5373\u53ef\u91cd\u65b0\u5b8c\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>UART \u521d\u59cb\u5316\n    \u2193\nBroadcom HCI \u521d\u59cb\u5316\n    \u2193\nbaud rate \u8bbe\u7f6e\n    \u2193\nHCI Controller \u6ce8\u518c\n    \u2193\nBlueZ \u83b7\u5f97 Controller\n    \u2193\nKDE \u663e\u793a Bluetooth\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">SMC Reset \u4e0d\u7b49\u4e8e NVRAM Reset<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u9700\u8981\u7279\u522b\u533a\u5206\u4e24\u4e2a\u6982\u5ff5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SMC Reset\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u548c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>NVRAM \/ PRAM Reset\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b83\u4eec\u4e0d\u662f\u540c\u4e00\u4ef6\u4e8b\u60c5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SMC \u4e3b\u8981\u8d1f\u8d23\u6216\u53c2\u4e0e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7535\u6e90\u7ba1\u7406<\/li>\n\n\n\n<li>\u7535\u6c60\u7ba1\u7406<\/li>\n\n\n\n<li>\u98ce\u6247<\/li>\n\n\n\n<li>\u90e8\u5206\u5916\u56f4\u8bbe\u5907\u72b6\u6001<\/li>\n\n\n\n<li>\u7761\u7720\u4e0e\u5524\u9192<\/li>\n\n\n\n<li>\u67d0\u4e9b\u5e95\u5c42\u786c\u4ef6\u521d\u59cb\u5316<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">NVRAM \u5219\u4fdd\u5b58\u53e6\u4e00\u7c7b\u56fa\u4ef6\u7ea7\u53c2\u6570\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\uff0c\u6267\u884c SMC Reset \u672c\u8eab\u5e76\u4e0d\u7b49\u4ef7\u4e8e\u6e05\u7a7a NVRAM\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u7cfb\u7edf\u4e2d\u66fe\u7ecf\u901a\u8fc7\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>nvram\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bbe\u7f6e\u67d0\u4e9b\u542f\u52a8\u76f8\u5173\u53c2\u6570\uff0c\u6b63\u5e38\u7684 SMC Reset \u4e0d\u5e94\u88ab\u89c6\u4e3a\u4e00\u6b21 NVRAM Reset\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e5f\u662f\u5904\u7406\u6b64\u95ee\u9898\u65f6\u4e00\u4e2a\u6bd4\u8f83\u5b89\u5168\u7684\u91cd\u8981\u533a\u522b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Wi-Fi \u56fa\u4ef6\u9519\u8bef\u4e0d\u8981\u548c Bluetooth \u6df7\u6dc6<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u4e00\u4efd\u65e5\u5fd7\u4e2d\u8fd8\u53ef\u80fd\u770b\u5230\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>brcmfmac4350c2-pcie....bin failed with error -2\nbrcmfmac4350c2-pcie.txt failed with error -2\nbrcmfmac4350c2-pcie.clm_blob failed with error -2\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e9b\u4fe1\u606f\u6765\u81ea\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>brcmfmac\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b83\u5c5e\u4e8e Broadcom Wi-Fi \u9a71\u52a8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540e\u9762\u5982\u679c\u7ee7\u7eed\u51fa\u73b0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Firmware: BCM4350\/5 ...\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bf4\u660e Wi-Fi \u5df2\u7ecf\u627e\u5230\u4e86\u53ef\u4f7f\u7528\u7684 fallback firmware \u5e76\u7ee7\u7eed\u521d\u59cb\u5316\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\u4e0d\u8981\u56e0\u4e3a\u770b\u5230\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>brcmfmac\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u548c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>BCM4350\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c31\u628a Wi-Fi \u56fa\u4ef6\u65e5\u5fd7\u4e0e Bluetooth \u6545\u969c\u6df7\u4e3a\u4e00\u8c08\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u867d\u7136 Wi-Fi \u548c Bluetooth \u53ef\u80fd\u6765\u81ea\u540c\u4e00\u5957 Broadcom \u65e0\u7ebf\u82af\u7247\u65b9\u6848\uff0c\u4f46 Linux \u4e2d\u662f\u4e24\u5957\u4e0d\u540c\u7684\u9a71\u52a8\u8def\u5f84\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u6b21 Bluetooth \u6545\u969c\u771f\u6b63\u9700\u8981\u5173\u6ce8\u7684\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hci_uart_bcm\nBluetooth: hci0\nfailed to write update baudrate\nReset failed\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e0d\u9700\u8981\u4e3a\u4e86\u84dd\u7259\u5b89\u88c5 broadcom-wl<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u53e6\u4e00\u4e2a\u5bb9\u6613\u8d70\u9519\u7684\u65b9\u5411\u662f\u5b89\u88c5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>broadcom-wl\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f46\u8fd9\u4e2a\u8f6f\u4ef6\u5305\u4e3b\u8981\u9488\u5bf9 Broadcom Wi-Fi\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u524d\u6545\u969c\u5df2\u7ecf\u660e\u786e\u53d1\u751f\u5728\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hci_uart_bcm\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e5f\u5c31\u662f Bluetooth UART \u521d\u59cb\u5316\u9636\u6bb5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\u6ca1\u6709\u7406\u7531\u4e3a\u4e86\u8fd9\u4e2a\u95ee\u9898\u4fee\u6539\u5df2\u7ecf\u6b63\u5e38\u5de5\u4f5c\u7684 Wi-Fi \u9a71\u52a8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 Linux \u786c\u4ef6\u6392\u969c\u4e2d\uff0c\u533a\u5206\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Wi-Fi\nBluetooth\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u867d\u7136\u4e24\u8005\u53ef\u80fd\u5171\u4eab\u540c\u4e00\u5757\u65e0\u7ebf\u786c\u4ef6\uff0c\u4f46\u9a71\u52a8\u94fe\u8def\u5b8c\u5168\u53ef\u80fd\u4e0d\u540c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><code>hciconfig<\/code> \u4e0d\u5b58\u5728\u4e5f\u4e0d\u662f\u95ee\u9898<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u90e8\u5206\u65e7\u6559\u7a0b\u4f1a\u8981\u6c42\u8fd0\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hciconfig\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u73b0\u4ee3 BlueZ \u73af\u5883\u4e2d\uff0c\u8fd9\u4e2a\u65e7\u5de5\u5177\u53ef\u80fd\u9ed8\u8ba4\u5e76\u4e0d\u5b58\u5728\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>bash: hciconfig: command not found\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u8eab\u5e76\u4e0d\u662f\u6545\u969c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u73b0\u5728\u66f4\u6709\u4ef7\u503c\u7684\u5de5\u5177\u5305\u62ec\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>bluetoothctl\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u53ca\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>btmgmt\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c24\u5176\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo btmgmt info\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u8fd4\u56de\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Index list with 0 items\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5df2\u7ecf\u8db3\u591f\u8bf4\u660e BlueZ \u5f53\u524d\u6ca1\u6709\u83b7\u5f97\u4efb\u4f55\u521d\u59cb\u5316\u5b8c\u6210\u7684 Bluetooth Controller\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u63a8\u8350\u7684\u8bca\u65ad\u6d41\u7a0b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u9047\u5230\u7c7b\u4f3c\u201cLinux \u80fd\u770b\u5230\u84dd\u7259\u786c\u4ef6\uff0c\u4f46\u684c\u9762\u73af\u5883\u6ca1\u6709 Bluetooth\u201d\u7684\u60c5\u51b5\uff0c\u53ef\u4ee5\u6309\u4e0b\u9762\u987a\u5e8f\u6392\u67e5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\u786e\u8ba4 BlueZ\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>pacman -Q bluez bluez-utils\nsystemctl status bluetooth\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u518d\u786e\u8ba4 rfkill\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>rfkill list\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u786e\u8ba4\u6a21\u5757\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>lsmod | grep -E 'btusb|btbcm|hci_uart|bluetooth'\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u68c0\u67e5 BlueZ \u662f\u5426\u771f\u6b63\u62ff\u5230\u4e86 Controller\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>bluetoothctl list\nsudo btmgmt info\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u540e\u8bfb\u53d6\u5185\u6838\u65e5\u5fd7\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo journalctl -b -k --no-pager |\n    grep -iE 'bluetooth|hci0|hci_uart|bcm|firmware|baud|ttyS'\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u770b\u5230\u7c7b\u4f3c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hci_uart_bcm\nNo reset resource, using default baud rate\ncommand 0xfc18 tx timeout\nfailed to write update baudrate\nFailed to set baudrate\nReset failed\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u90a3\u4e48\u91cd\u70b9\u5c31\u4e0d\u5e94\u8be5\u7ee7\u7eed\u653e\u5728\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>BlueZ \u914d\u7f6e\nKDE \u8bbe\u7f6e\nrfkill\n\u989d\u5916\u8f6f\u4ef6\u5305\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u800c\u5e94\u8be5\u8003\u8651 Broadcom UART \u63a7\u5236\u5668\u662f\u5426\u5904\u4e8e\u6ca1\u6709\u88ab\u5b8c\u5168\u590d\u4f4d\u7684\u786c\u4ef6\u72b6\u6001\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6b21\u6545\u969c\u8868\u9762\u4e0a\u770b\u50cf\u662f Arch Linux \u4e0d\u652f\u6301\u5185\u7f6e Bluetooth\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>BlueZ \u6b63\u5e38\nrfkill \u6709 hci0\nKDE \u6ca1\u6709 Bluetooth\nbluetoothctl \u6ca1\u6709 Controller\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f46\u65e5\u5fd7\u6700\u7ec8\u8bc1\u660e Linux \u7684\u9a71\u52a8\u652f\u6301\u5b9e\u9645\u4e0a\u5df2\u7ecf\u5b58\u5728\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u771f\u6b63\u7684\u6545\u969c\u70b9\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>BCM4350C0\n    \u2193\nBroadcom HCI UART\n    \u2193\n\u63a7\u5236\u5668\u672a\u6b63\u786e\u6062\u590d\u9ed8\u8ba4 UART \u72b6\u6001\n    \u2193\nLinux \u4f7f\u7528\u9ed8\u8ba4 baud rate \u521d\u59cb\u5316\n    \u2193\n0xfc18 \u547d\u4ee4\u8d85\u65f6\n    \u2193\nbaud rate \u8bbe\u7f6e\u5931\u8d25\n    \u2193\nHCI Controller \u6ce8\u518c\u5931\u8d25\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u5f7b\u5e95\u5173\u673a\u5e76\u6267\u884c SMC Reset\uff0c\u4f7f\u84dd\u7259\u63a7\u5236\u5668\u6062\u590d\u5230\u6b63\u5e38\u7684\u5e95\u5c42\u521d\u59cb\u5316\u72b6\u6001\u540e\uff0cArch Linux \u5373\u53ef\u6b63\u5e38\u8bc6\u522b\u5e76\u4f7f\u7528 Bluetooth\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u7c7b\u6545\u969c\u5f88\u9002\u5408\u8bf4\u660e\u4e00\u4e2a Linux \u786c\u4ef6\u6392\u969c\u539f\u5219\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u201c\u8bbe\u5907\u88ab\u5185\u6838\u53d1\u73b0\u201d\u4e0e\u201c\u8bbe\u5907\u5b8c\u6210\u521d\u59cb\u5316\u5e76\u53ef\u88ab\u7528\u6237\u7a7a\u95f4\u4f7f\u7528\u201d\u662f\u4e24\u4e2a\u4e0d\u540c\u9636\u6bb5\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code>rfkill<\/code> \u4e2d\u51fa\u73b0 <code>hci0<\/code>\uff0c\u53ea\u80fd\u8bc1\u660e\u5e95\u5c42\u786c\u4ef6\u8def\u5f84\u5df2\u7ecf\u5b58\u5728\uff1b\u771f\u6b63\u5224\u65ad Bluetooth \u662f\u5426\u53ef\u7528\uff0c\u8fd8\u5e94\u8be5\u7ee7\u7eed\u68c0\u67e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>bluetoothctl list\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u548c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>btmgmt info\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u518d\u7ed3\u5408 kernel log \u5224\u65ad HCI \u521d\u59cb\u5316\u662f\u5426\u5b8c\u6574\u5b8c\u6210\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u90e8\u5206\u91c7\u7528 Broadcom \u84dd\u7259\u63a7\u5236\u5668\u7684 Intel Mac \u786c\u4ef6\u4e0a\uff0cArch Linux \u53ef\u80fd\u80fd\u591f\u8bc6\u522b\u84dd\u7259\u786c\u4ef6\uff0c\u5374\u65e0\u6cd5\u771f\u6b63\u521b\u5efa\u53ef\u7528\u7684 BlueZ \u63a7\u5236\u5668\u3002\u5178\u578b\u8868\u73b0\u662f\u7cfb\u7edf\u5df2\u7ecf\u52a0\u8f7d\u84dd\u7259\u9a71\u52a8\u3001rfkill \u4e5f\u80fd\u770b\u5230 hci0\uff0c\u4f46 KDE \u4e2d\u6ca1\u6709\u84dd\u7259\u56fe\u6807\uff0cbluetoothctl \u65e0\u6cd5\u5217\u51fa\u63a7\u5236\u5668\u3002 \u8fd9\u7c7b\u95ee\u9898\u5e76\u4e0d\u4e00\u5b9a\u610f\u5473\u7740 Linux \u7f3a\u5c11\u9a71\u52a8\uff0c\u4e5f\u4e0d\u4e00\u5b9a\u9700\u8981\u989d\u5916\u5b89\u88c5\u56fa\u4ef6\u3002\u5bf9\u4e8e BCM4350C0 \u8fd9\u7c7b\u901a\u8fc7 UART \u8fde\u63a5\u7684\u63a7\u5236\u5668\uff0c\u95ee\u9898\u53ef\u80fd\u51fa\u5728\u63a7\u5236\u5668\u81ea\u8eab\u4fdd\u7559\u7684\u901a\u4fe1\u72b6\u6001\uff0c\u5c24\u5176\u662f UART \u6ce2\u7279\u7387\u72b6\u6001\u3002 \u6545\u969c\u73b0\u8c61 \u7cfb\u7edf\u5df2\u7ecf\u5b89\u88c5\u5e76\u542f\u7528\u4e86 BlueZ\uff1a \u7ed3\u679c\u663e\u793a\uff1a \u8bf4\u660e\u7528\u6237\u7a7a\u95f4\u7684 Bluetooth \u670d\u52a1\u672c\u8eab\u6b63\u5e38\u3002 \u7ee7\u7eed\u68c0\u67e5\uff1a \u6ca1\u6709\u4efb\u4f55\u8f93\u51fa\u3002 \u4f7f\u7528\uff1a \u5219\u663e\u793a\uff1a \u8fd9\u8bf4\u660e BlueZ \u670d\u52a1\u867d\u7136\u6b63\u5e38\u8fd0\u884c\uff0c\u4f46\u5185\u6838\u5e76\u6ca1\u6709\u6210\u529f\u5411\u5b83\u63d0\u4f9b\u4e00\u4e2a\u53ef\u4f7f\u7528\u7684 HCI Controller\u3002 \u786e\u8ba4\u786c\u4ef6\u662f\u5426\u5b58\u5728 \u9996\u5148\u68c0\u67e5 rfkill\uff1a \u53ef\u4ee5\u770b\u5230\uff1a \u8fd9\u975e\u5e38\u91cd\u8981\u3002 \u5b83\u8bf4\u660e\uff1a \u56e0\u6b64\u95ee\u9898\u5e76\u4e0d\u662f\u7b80\u5355\u7684 Bluetooth \u5f00\u5173\u72b6\u6001\u3002 \u518d\u68c0\u67e5\u5185\u6838\u6a21\u5757\uff1a &hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[122],"tags":[219,292,328,264],"class_list":["post-6119","post","type-post","status-publish","format-standard","hentry","category-awdn5b6gpb9nez4","tag-arch-linux","tag-bluetooth","tag-drivers","tag-troubleshooting"],"_links":{"self":[{"href":"https:\/\/blog.eternalsphere.net\/index.php\/wp-json\/wp\/v2\/posts\/6119","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.eternalsphere.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.eternalsphere.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.eternalsphere.net\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.eternalsphere.net\/index.php\/wp-json\/wp\/v2\/comments?post=6119"}],"version-history":[{"count":1,"href":"https:\/\/blog.eternalsphere.net\/index.php\/wp-json\/wp\/v2\/posts\/6119\/revisions"}],"predecessor-version":[{"id":6120,"href":"https:\/\/blog.eternalsphere.net\/index.php\/wp-json\/wp\/v2\/posts\/6119\/revisions\/6120"}],"wp:attachment":[{"href":"https:\/\/blog.eternalsphere.net\/index.php\/wp-json\/wp\/v2\/media?parent=6119"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.eternalsphere.net\/index.php\/wp-json\/wp\/v2\/categories?post=6119"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.eternalsphere.net\/index.php\/wp-json\/wp\/v2\/tags?post=6119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}