In thunar-volman-settings I have thunar set to mount removable drives and media when hotplugged/inserted. However for one usb hard disk not all partitions are mounted, and for a camera attached as a storage device (which should behave like a disk?) it's not mounted at all. The only commonality I can find is that in the .xsession-errors file I get: thunar-volman: Unsupported USB device type. thunar-volman: Unsupported USB device type. thunar-volman: Unknown block device type. thunar-volman: Could not detect the volume corresponding to the device.
That should already be fixed in master.
I grabbed version Thunar 1.5.0git-4247b3e (Xfce 4.10) and still see this behavior. Did you mean some other version?
I'm pretty sure cameras should work (works fine here with multiple devices). You could try nautilus too, thunar and nautilus use the same backend for this.
And what is the partition layout (=fs types) of the disk. Then I can test it a bit.
The drive is 4 ext4 partitions which are empty with the exception of a text file named "file" which contains the contents "hello world\n". Camera which is fat32 behaves identically except instead of mounting 2/4 partitions it mounts 0/1. From dmesg: [138267.456679] usb 2-1: >new high-speed USB device number 4 using ehci_hcd [138267.589824] usb 2-1: >New USB device found, idVendor=152d, idProduct=2329 [138267.589828] usb 2-1: >New USB device strings: Mfr=1, Product=2, SerialNumber=5 [138267.589832] usb 2-1: >Product: USB to ATA/ATAPI Bridge [138267.589834] usb 2-1: >Manufacturer: JMicron [138267.589837] usb 2-1: >SerialNumber: 123279040000 [138267.590913] usb-storage 2-1:1.0: >Quirks match for vid 152d pid 2329: 8020 [138267.591127] scsi19 : usb-storage 2-1:1.0 [138268.588574] scsi 19:0:0:0: >Direct-Access Corsair Force GT PQ: 0 ANSI: 2 CCS [138268.589787] sd 19:0:0:0: >Attached scsi generic sg9 type 0 [138268.590667] sd 19:0:0:0: >[sdi] 234441648 512-byte logical blocks: (120 GB/111 GiB) [138268.591587] sd 19:0:0:0: >[sdi] Write Protect is off [138268.591592] sd 19:0:0:0: >[sdi] Mode Sense: 34 00 00 00 [138268.592476] sd 19:0:0:0: >[sdi] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA [138268.597400] sdi: sdi1 sdi2 sdi3 sdi4 [138268.600383] sd 19:0:0:0: >[sdi] Attached SCSI disk [138269.029832] EXT4-fs (sdi3): recovery complete [138269.030324] EXT4-fs (sdi3): mounted filesystem with ordered data mode. Opts: (null) [138269.232764] EXT4-fs (sdi4): recovery complete [138269.233309] EXT4-fs (sdi4): mounted filesystem with ordered data mode. Opts: (null)
This may be the timing problem described in bug 9193. The camera issues may be related to the change in treatment of cameras that don't (or no longer) present the USB Mass Storage interface. Such cameras can no longer be mounted at all. (I don't know when this changed, but I have a Canon camera that used to mount nicely but doesn't any more.)
Closing old bugreports