Created attachment 1382563 [details] journalctl -b-1 | grep -E -i 'drm|nouveau' (i.e. from boot in dock) Description of problem: When booting my Lenovo P50 inside the dock all screens remain black. It should show the prompt for the LUKS password and then the gdm login screen. Neither happens. Version-Release number of selected component (if applicable): $ rpm -q xorg-x11-drv-nouveau xorg-x11-drv-nouveau-1.0.15-3.fc27.x86_64 How reproducible: 100% Steps to Reproduce: 1. Put Lenovo P50 in dock (40A50230EU). Be sure two external monitors are connected prior to it. On one setup 1xHDMI + 1xDVI. On another setup 1xVGA + 1xDVI. Same issue on both. 2. Boot. Actual results: Screens remain black. Including the built-in LCD. Expected results: Show LUKS prompt and then gdm screen. Additional info: When I remove the P50 from the dock, boot, log in at the GDM screen and put it into the dock after that, external screens seem to work. I'm seeing: bus: MMIO read of 00000000 FAULT at 022554 [ IBUS ] which seems very similar to: https://bugs.freedesktop.org/show_bug.cgi?id=100423 I'm also seeing the following on each boot, which is different to that bug: bus: MMIO read of 00000000 FAULT at 10ac08 [ IBUS ]
I also have a P50 with luks encryption (/home), and I just get a blank screen when trying to boot recent kernels. I don't even get to the password prompt. I have 1 monitor connected to docking station, via hdmi, which is the same resolution as the laptop (both 4k). This may be a dup of #1527669.
Thanks, Robert. It's indeed a dupe of 1527669. Though, I also run into bug 1477182 when booting undocked and then attach to dock. *** This bug has been marked as a duplicate of bug 1527669 ***