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mmc0: Timeout waiting for hardware interrupt. dmesg output: mmc0: new ultra high speed SDR104 SDHC card at address e624 When the SD card is inserted in Macbook pro internal SD card reader, it almost never mounts, appearing as unknown in Disks.
SD CARD READER NOT WORKING MAC UPDATE
I tried another card SDXC 128 GB ExFAT, with the same results (except maybe for reformatting that I did not try because I have useful data on the card).Īny suggestion to obtain normal function of the internal SD card reader with Ubuntu? Update I can recover by restarting but thereafter the SD card is seen as before in Disks: 16 GB unknown. It also works in the same internal card reader of the same Mac after rebooting with Mac OS.Īs the card and the reader work, I suspect that Ubuntu misses something.Īfter reformatting (FAT again), the card seems to work (seen as 16 GB FAT in Disks) but when trying to copy a file to it by drag and drop from the desktop, the cursor arrow becomes a hand and Ubuntu freezes.
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The same SD card works through a USB external card reader. The SD card does not work in the internal SD card reader: it appears as 16 GB unknown in Disks. I have a micro SD card, SanDisk Ultra 16 GB, Ultra High Speed, formatted FAT, in a SD adapter and a Macbook pro 8,1 running Ubuntu 20.10.