Estou executando o Ubuntu 16.10 em um Acer Aspire V5-571P. Estou tentando usar o leitor de cartões interno para ler um cartão micro SD (que sei que está funcionando corretamente).
O Ubuntu não reconhecerá o cartão e eu receberei a seguinte mensagem de 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
Caso isso possa ajudar, lsusb retornará:
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 retorna:
rtsx_pci_sdmmc 24576 0
rtsx_pci 57344 2 rtsx_pci_sdmmc,rtsx_pci_ms
e lspci retornam:
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 é meu leitor de cartão se eu estiver certo.
Então, no fim das contas, acho que o Ubuntu sabe que há um leitor de cartões lá, mas não pode ler (sem drivers?), alguém sabe o que eu tenho que fazer para que isso funcione?
Isso vai parecer loucura, mas supondo que você esteja usando um adaptador de cartão microSD para SD: tente outro adaptador! Eu só tive esse problema com uma boa placa conhecida e descobri que funcionava perfeitamente com um adaptador de cartão SD diferente. (O adaptador "ruim" funcionou corretamente com um cartão microSD diferente.) Eu não tenho idéia de por que isso seria, mas foi uma correção consistente no meu caso.