Difference between revisions of "CM-T3530: Linux: Known Issues"

Latest revision as of 11:49, 28 October 2013

Input

Some Angstrom GUI setup utilities require superuser password, but do not accept it.

Workaround: login as root.

USB OTG

Sometimes the USB OTG port fails to transition from Host mode to Peripheral mode.

Workaround:

root@cm-t3730:~# modprobe -r g_ether

root@cm-t3730:~# modprobe g_ether

Power Management

After Suspend/Resume cycle, the baseboard (SB-T35/CB-T3) USB Hub becomes non functional.

@@ Line 1: / Line 1: @@
-{{IssueCategory|Graphics|
+{{IssueCategory|Input|
-* The "Exquisite" splashscreen utility conflicts with getty on tty1 and dumps a lot of error messages to the console. These errors can be easily ignored.
+* Some Angstrom GUI setup utilities require superuser password, but do not accept it.
+:'''Workaround:''' login as root.
 }}
-{{IssueCategory|Peripherals|
+{{IssueCategory|USB OTG|
-* No hotplug on USB ports connected to SB-T35 USB Hub (connector P17) with default kernel binary
+* Sometimes the USB OTG port fails to transition from Host mode to Peripheral mode.
-:'''Workaround 1:''' append '''usbcore.autosuspend <nowiki>=</nowiki> -1''' to the kernel command line
+:'''Workaround:'''
-:'''Workaround 2:''' connect low/full speed USB devices to P17 connector '''before''' booting CM-T3530. Use P21 connector for hotplugable high speed USB devices
+:* Unplug the USB cable from the CM-T3730 USB OTG port
+:* Remove the USB Gadget driver module from the kernel:
+::<pre>root@cm-t3730:~# modprobe -r g_ether</pre>
+:* Load the USB Gadget driver module again:
+::<pre>root@cm-t3730:~# modprobe g_ether</pre>
+:* Plug the USB cable back to CM-T3730 USB OTG port
+}}
+{{IssueCategory|Power Management|
+* After Suspend/Resume cycle, the baseboard (SB-T35/CB-T3) USB Hub becomes non functional.
 }}
 [[Category:Linux|Known issues]]
 [[Category:CM-T3530|Linux: Known issues]]