On 15/08/17 02:48 AM, Paul Menzel wrote: > On 08/14/17 03:15, Michel Dänzer wrote: >> On 11/08/17 01:02 AM, Paul Menzel wrote: >>> On 08/10/17 15:14, Paul Menzel wrote: >>> >>>> Xorg: >>>> /dev/shm/bee-root/xorg-server/xorg-server-1.19.3-0/source/dix/dispatch.c:4049: >>>> >>>> AttachOffloadGPU: Assertion `new->current_master == pScreen' failed. >>>> ``` >>>> >>>> The USB keyboard does not work, and the system has to be controlled >>>> remotely over SSH. Plugging in the DisplayPort cable into the internal >>>> Intel graphics ports the Linux messages can be seen, but nothing else >>>> works. Stopping GDM does not bring back the TTY screen. The keyboard >>>> still does work. Plugging the USB cable out and back in doesnâ??t fix it >>>> either. >>>> >>>> Trying to disable the internal Intel graphics card, did not fix the >>>> problem either. >>> >>> Blacklisting the module *i915* works around the problem. >>> >>> Please tell me if you want me to create a bug report for this issue, >>> and, if yes, what part in the graphics stack this problem belongs to. >> >> It's hard to be sure without seeing a backtrace of the assertion >> failure, but I'd say start at >> https://bugs.freedesktop.org/enter_bug.cgi?product=xorg&component=Server/Ext/RandR. >> > > Do you know why the stack trace is not present in the X server log? Because your xserver build doesn't have https://cgit.freedesktop.org/xorg/xserver/commit/?id=27a6b9f7c84c914d0f5909ec1069d72f5035bc04 (it's only in Git master yet). > I was able to get a stack trace as root and with GDB. Issue #102222 > (dix/dispatch.c:4049: AttachOffloadGPU: Assertion `new->current_master > == pScreen' failed.) tracks this problem now, and the stack traces are > attached there. Thanks, though it looks like it might actually be a downstream issue. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer