我在 Acer Aspire V5-571P 上运行 Ubuntu 16.10。我尝试使用内置读卡器读取微型 SD 卡（我知道它工作正常）。
Ubuntu 无法识别该卡，并且我收到以下消息dmesg
[11970.123839] mmc0: cannot verify signal voltage switch
[11970.259430] mmc0: tuning execution failed: -22
[11970.259447] mmc0: error -22 whilst initialising SD card
[11971.306468] mmc0: problem reading SD Status register
[11971.722474] mmc0: error -110 whilst initialising SD card
[11978.487878] mmc0: cannot verify signal voltage switch
[11978.623494] mmc0: tuning execution failed: -22
[11978.623510] mmc0: error -22 whilst initialising SD card
[11979.666515] mmc0: problem reading SD Status register
[11980.082510] mmc0: error -110 whilst initialising SD card
[11981.126524] mmc0: problem reading SD Status register
[11981.542429] mmc0: error -110 whilst initialising SD card
万一能帮助lsusb退货：
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 0489:e04e Foxconn / Hon Hai
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 064e:e330 Suyin Corp.
Bus 003 Device 002: ID 04f3:0023 Elan Microelectronics Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
lsmod | grep sd返回：
rtsx_pci_sdmmc 24576 0
rtsx_pci 57344 2 rtsx_pci_sdmmc,rtsx_pci_ms
并lspci返回：
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4)
00:1c.3 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 4 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM77 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8411 PCI Express Card Reader (rev 01)
02:00.2 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0a)
03:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01)
02:00.0如果我没记错的话，是我的读卡器。
所以总而言之，我认为 Ubuntu 知道那里有一个读卡器，但无法从中读取（没有驱动程序？），有人知道我必须做什么才能让它工作吗？
答案1
这听起来可能有点疯狂，但假设您使用的是 microSD 转 SD 卡适配器：请尝试使用其他适配器！我刚刚在使用已知良好的卡时遇到了这个问题，发现它与其他 SD 卡适配器配合使用效果很好。（“坏”适配器与其他 microSD 卡配合使用效果很好。）我不知道为什么会这样，但对我来说这是一个一致的解决方案。