On 10/16/18 9:04 AM, Frédéric wrote:
Check the output of lspci to see what your SD reader device is.
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd.
RTS525A PCI Express Card Reader (rev 01)
Looking around, this device seems to have issues under Linux with people
reporting the same symptoms that you are getting. I would suggest
filing an upstream kernel bug report.
Also check "journalctl -b" to check for initialization messages. Searching for mmc
should find the right area.
Oct 16 17:58:45 alpha kernel: mmc0: cannot verify signal voltage switch
Oct 16 17:58:46 alpha kernel: mmc0: error -110 whilst initialising SD card
Oct 16 17:58:47 alpha kernel: mmc0: cannot verify signal voltage switch
Oct 16 17:58:47 alpha kernel: mmc0: error -110 whilst initialising SD card
Oct 16 17:58:48 alpha kernel: mmc0: cannot verify signal voltage switch
Oct 16 17:58:48 alpha kernel: mmc0: error -110 whilst initialising SD card
I didn't mean to grep for it. I meant that while you were running
"journalctl -b", you can search for that text and somewhere around it
should be the initialization messages. Try searching for RTS525A as
well or just scan through all the messages and see if you can find anything.
For example, this is what my log shows:
Oct 03 06:22:56 kernel: sdhci: Secure Digital Host Controller Interface
driver
Oct 03 06:22:56 kernel: sdhci: Copyright(c) Pierre Ossman
Oct 03 06:22:56 kernel: sdhci-pci 0000:23:00.1: SDHCI controller found
[197b:2392] (rev 30)
Oct 03 06:22:56 kernel: sdhci-pci 0000:23:00.1: enabling device (0000 ->
0002)
Oct 03 06:22:56 kernel: mmc0 bounce up to 128 segments into one, max
segment size 65536 bytes
Oct 03 06:22:56 kernel: mmc0: SDHCI controller on PCI [0000:23:00.1]
using DMA
Oct 03 06:22:56 kernel: sdhci-pci 0000:23:00.2: SDHCI controller found
[197b:2391] (rev 30)
Oct 03 06:22:56 kernel: sdhci-pci 0000:23:00.2: Refusing to bind to
secondary interface.
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