我有一台大约一年前买的 System76 Laptop Lemur。（一只狐猴）上面装有 ubuntu 17.04。我最近安装了 ubuntu 18.04。我有一个集成的 sd/mmc 读卡器，插入卡时它无法读取卡。当我输入时，lspci我得到：
00:00.0 Host bridge: Intel Corporation Skylake Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 520 (rev 07)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1)
00:1c.1 PCI bridge: Intel Corporation Device 9d11 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8411B PCI Express Card Reader (rev 01)
01:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 12)
02:00.0 Network controller: Intel Corporation Wireless 3165 (rev 81)
因此，看起来未分配的类是读卡器。我知道有这样的问题，但解决方案并不奏效。我希望有人能帮忙。
提前致谢
答案1
回答我自己的问题：我尝试在插入卡的情况下重新启动，并且成功了。我还运行了 apt-get update && apt-get upgrade -y 似乎内核中存在错误，希望在下次更新中修复它。