On Thu, 18 Feb 2016 mmi@xxxxxxxxxxxx wrote: > This happens also with older kernel versions (3.x, etc.): > > A small LCD display (ID 1908:0102 GEMBIRD) connected to USB is used for > some years now. Computer (and display) runs always (24 hours/day). > 'lcd4linux' is used to update the displays contents. > > This works fine - but it fails after 1-2 days. > > The log shows: > > ohci-pci 0000:00:12.0: frame counter not updating; disabled > ohci-pci 0000:00:12.0: HC died; cleaning up > > The ohci-pci module will be disabled then, the display gets lost. That error message indicates a problem in the OHCI hardware. I don't what causes the problem or how to prevent it. > A workaround for this is to reload this module every 24 hours > (automated by a systemd service). So far this helps: I didn't have this > error anymore. This workaround is tested for a few months now and it > runs fine - but it's 'only' a workaround. ;) That's okay. Reinitializing the controller and the driver is a perfectly reasonable workaround for a hardware problem. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
