Dear Michel, On 2017-08-15 03:19, Michel Dänzer wrote: > 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). With this patch the stack trace is indeed in the log. ``` [â?¦] Xorg: /dev/shm/bee-root/xorg-server/xorg-server-1.19.3-1/source/dix/dispatch.c:4049: AttachOffloadGPU: Assertion `new->current_master == pScreen' failed. (EE) (EE) Backtrace: (EE) 0: /usr/libexec/Xorg (xorg_backtrace+0x41) [0x580461] (EE) 1: /usr/libexec/Xorg (0x400000+0x183e09) [0x583e09] (EE) 2: /lib/libpthread.so.0 (0x7f6f957d3000+0x11a50) [0x7f6f957e4a50] (EE) 3: /lib/libc.so.6 (gsignal+0x104) [0x7f6f954682f4] (EE) 4: /lib/libc.so.6 (abort+0x16a) [0x7f6f9546975a] (EE) 5: /lib/libc.so.6 (0x7f6f95435000+0x2c027) [0x7f6f95461027] (EE) 6: /lib/libc.so.6 (0x7f6f95435000+0x2c0d2) [0x7f6f954610d2] (EE) 7: /usr/libexec/Xorg (AttachOffloadGPU+0x6e) [0x4357fe] (EE) 8: /usr/libexec/Xorg (0x400000+0xa8b76) [0x4a8b76] (EE) 9: /usr/libexec/Xorg (InitOutput+0x5b3) [0x4775b3] (EE) 10: /usr/libexec/Xorg (0x400000+0x38cb6) [0x438cb6] (EE) 11: /lib/libc.so.6 (__libc_start_main+0xf0) [0x7f6f95455520] (EE) 12: /usr/libexec/Xorg (_start+0x2a) [0x42421a] (EE) (EE) Fatal server error: (EE) Caught signal 6 (Aborted). Server aborting (EE) (EE) [â?¦] ``` >> 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. I donâ??t have my login credentials handy right now, so I attach the X server here, and go looking for the credentials. Kind regards, Paul -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: 20170815?Xorg.5.log URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20170815/da4bf3a3/attachment-0001.ksh>
