On 04/04/17 03:54, Tim Jackson wrote: > To add to this thread, I have the exact same problem using > fully-updated (as of today, including libdrm-2.4.76-1) F25, GNOME and > X11 session. To be a bit more specific: for me, when the problem > occurs (after the screen locks and the monitors power down), I *can* > "wake up" the screen, *and* I get a (moveable) mouse cursor, but > behind the cursor is just a static copy of whatever happened to be on > the screen prior to it going to sleep. In most cases, black > (presumably because GNOME blanked the screen prior to lock). Or, if I > happened to be on the login screen when the monitors went to sleep, > possibly a static copy of the login screen. Then your issue is different than mine. And, possibly others. In my case, while xrandr shows both monitors to be "connected" as normal one of the monitors blank and obviously not receiving any signal since it will not stay connected to DP-1 but switches to the HDMI connector which has a Chromecast connected to it. > > As outlined by previous posters, I can't find any way out of this > other than hard rebooting, which is a pretty nasty solution if I had > unsaved stuff. > > On one occasion, the machine apparently fully crashed (not even > pingable), but I can't reproduce that. > > The following kernels are affected: > > kernel-4.10.5-200.fc25.x86_64 > kernel-4.10.6-200.fc25.x86_64 > > If I roll back to kernel-4.9.14-200.fc25.x86_64 the problem goes away. > > lspci -k -nn says: > > 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF119 > [GeForce GT 610] [10de:104a] (rev a1) > Subsystem: ASUSTeK Computer Inc. Device [1043:840d] > Kernel driver in use: nouveau > Kernel modules: nouveau > > I have two screens connected via DVI and HDMI respectively. > > To answer Ed Greshko's debugging questions: > >>> 1. Are you using the nouveau driver or the nVidia driver for your >>> card? > > nouveau. In fact this is a pretty fresh install of Fedora all round, > without much extra. > >>> 2. Are you running GNOME under Wayland or X11? > > X11. > >>> If you are using X11, and since you can ssh into the system, what is >>> the output if you do... >>> ssh systemB >>> export DISPLAY=:0 >>> xrandr > > The following (which is exactly the same as under a normal working > session): > > Screen 0: minimum 320 x 200, current 2560 x 1024, maximum 16384 x 16384 > DVI-I-1 connected 1280x1024+1280+0 (normal left inverted right x axis > y axis) 338mm x 270mm > 1280x1024 60.02 + 75.02* > 1152x864 75.00 > 1024x768 75.03 60.00 > 800x600 75.00 60.32 > 640x480 75.00 59.94 > 720x400 70.08 > HDMI-1 connected primary 1280x1024+0+0 (normal left inverted right x > axis y axis) 338mm x 270mm > 1280x1024 60.02 + 75.02* > 1152x864 75.00 > 1024x768 75.03 60.00 > 800x600 75.00 60.32 > 640x480 75.00 59.94 > 720x400 70.08 > >>> Using my system as an example, does doing something like this bring the >>> monitor back? > >> [snip xrandr blah --off, xrandr blah --auto] > > Note that from my description, the monitors are already on and awake, > so they don't really need to be "brought back". But sure, turning them > off and on with xrandr turns them off and on again. It doesn't change > the underlying problem. Right. So, different issues. I don't know if there is a BZ for the issue you're describing. However, it seems what I'm seeing has been around for quite some time. https://bugzilla.redhat.com/show_bug.cgi?id=1179924 and others. -- Fedora Users List - The place to go to get others to do the work for you _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx