Date: Thu, 16 Aug 2018 16:16:33 +0000 From: bugzilla-noreply@freebsd.org To: usb@FreeBSD.org Subject: [Bug 230659] xhci(4) devices cannot attach after warm boot (Intel Braswell) Message-ID: <bug-230659-19105-f5vnBeknlS@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-230659-19105@https.bugs.freebsd.org/bugzilla/> References: <bug-230659-19105@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D230659 --- Comment #2 from Maxim Sobolev <sobomax@FreeBSD.org> --- (In reply to Hans Petter Selasky from comment #1) Yes it is enabled. If I switch it off then I have no way to switch it on, as USB keyboard is the only way to access the BIOS. I've tried to set XHCI mod= e to "OFF", but it has the same effect as disabling USB altogether, i.e. blocking further access to BIOS and none of the USB peripherals are working after th= at after FreeBSD boots. The board has no way to do "factory reset" so that thi= s is very painful experiment as the only way to recover it after that change is = to re-flash the BIOS with an external programmer. Apparently it stores setting= s in the same EEPROM as the rest of the BIOS code. This is Lattepanda board in question: https://www.dfrobot.com/product-1404.html?gclid=3DEAIaIQobChMI_NHk3fvx3AIVg= cpkCh07nwi9EAAYAiAAEgJNB_D_BwE If it helps in any way we can send you one for investigation. We also see t= his issue with this box built on the same chipset. https://www.aliexpress.com/item/Original-Cenovo-Mini-PC-2-Intel-X5-Z8300-Qu= ad-Core-Windows-10-2GB-4GB-RAM-32GB/32657584443.html --=20 You are receiving this mail because: You are the assignee for the bug.=
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