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Description of problem: I was just trying to set up dual monitors (connected via DVI to motherboard) with iGPU (Intel Core i3) and TV connected to GPU (nVidia in PCI-E) via HDMI. System has kernel 4.8.4-200.fc24.x86_64 and nouveau and i915 moules installed (and not blacklisted). KMS (or some) has no any modeset related parameters in grub.cfg. So that did not work: during bootup fedora logo loader is displayed on TV while DVI displays are blank (nevertheless signal on both of DVIs persists). Once login screen has been displayed (on the first DVI monitor as required, so all works fine at this stage) I am trying to log in and that is faulty because I got two blank monitors right after logging. Since now I can do nothing - TV gives me "no signal", monitors are blank. Switching to TTY possible but it isn't very useful (in my case) as I don't know what info or logs to search. So after reboot I edited grub2 runtime config and added nouveau.modeset=0. But I'm not sure what is that "magic" really is for. Anyway all of the stuff proceeds correctly now. Except that TV was not observed by OS. But I already had a clue about that so I did: # modprobe nouveau - that did not anything noteable as well as useful too. so then I did: # modprobe -r nouveau # modprobe nouveau modeset=1 After X system (I am not sure although) was restarted the both of monitors (iGPU) and TV (PCI nVidia) work just fine. I really didn't find any useful info about my displays setting, so I'm doing my best while trying to hanlde that mess. Thanks! Version-Release number of selected component: xorg-x11-server-Xorg-1.18.4-4.fc24 Additional info: reporter: libreport-2.7.2 backtrace_rating: 4 cmdline: /usr/libexec/Xorg vt2 -displayfd 3 -auth /run/user/1000/gdm/Xauthority -background none -noreset -keeptty -verbose 3 crash_function: dixRegisterPrivateKey executable: /usr/libexec/Xorg global_pid: 1563 kernel: 4.8.4-200.fc24.x86_64 pkg_fingerprint: 73BD E983 81B4 6521 pkg_vendor: Fedora Project runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (10 frames) #4 dixRegisterPrivateKey at privates.c:385 #5 glamor_init at glamor.c:489 #6 ScreenInit at driver.c:1225 #7 AddGPUScreen at dispatch.c:3915 #8 xf86platformAddDevice at xf86platformBus.c:523 #9 NewGPUDeviceRequest at lnx_platform.c:195 #10 device_added at udev.c:131 #11 wakeup_handler at udev.c:357 #12 WakeupHandler at dixutils.c:423 #13 WaitForSomething at WaitFor.c:230 Potential duplicate: bug 1382259
Created attachment 1218674 [details] File: backtrace
Created attachment 1218675 [details] File: cgroup
Created attachment 1218676 [details] File: core_backtrace
Created attachment 1218677 [details] File: dso_list
Created attachment 1218678 [details] File: environ
Created attachment 1218679 [details] File: limits
Created attachment 1218680 [details] File: maps
Created attachment 1218681 [details] File: mountinfo
Created attachment 1218682 [details] File: namespaces
Created attachment 1218683 [details] File: open_fds
Created attachment 1218684 [details] File: proc_pid_status
Created attachment 1218685 [details] File: var_log_messages
Hi, Support for systems with hybrid gfx has been greatly improved in the just released Fedora 25, I believe that this bug is one of the bugs fixed in F25, so I advice you to upgrade to F25. Regards, Hans
Similar problem has been detected: 0. Fedora 24 KDE spin - up to date 1. logged in KDE Plasma session 2. Screen lock / new Session (or switch user) 3. xorg-x11-server crash followed by sddm crash reporter: libreport-2.7.2 backtrace_rating: 4 cmdline: /usr/libexec/Xorg -nolisten tcp -auth /var/run/sddm/{fc17d539-50ea-470b-ab0a-56762da5292e} -background none -noreset -displayfd 18 vt2 crash_function: dixRegisterPrivateKey executable: /usr/libexec/Xorg global_pid: 2358 kernel: 4.8.11-200.fc24.x86_64 package: xorg-x11-server-Xorg-1.18.4-5.fc24 pkg_fingerprint: 73BD E983 81B4 6521 pkg_vendor: Fedora Project reason: Xorg killed by SIGABRT runlevel: N 5 type: CCpp uid: 0