I've added debugging command-line parameters to the kernel command line, per skeggsb and imirkin on #nouveau. root@joyful:~# cat /proc/cmdline BOOT_IMAGE=/vmlinuz-5.3.0-26-generic root=/dev/mapper/vgubuntu-root ro quiet splash log_buf_len=8M nouveau.debug=disp=trace,bios=trace,i2c=trace 3 On this particular run, closing the lid and then opening got me back to the console, but then I tried running echo mem > /sys/power/state and it did not recover from that. That is, the laptop is awake, I can ssh in, screen back-light is on; black screen. j On Sunday, January 12, 2020 2:02:00 PM AKST Joshua J. Kugler wrote: > Howdy! I've been doing a lot of troubleshooting, and haven't arrived at a > solution yet. > > Kernel log attached. VBIOS also attached. > Ubuntu 19.10 > > $ uname -a > Linux joyful 5.3.0-26-generic #28-Ubuntu SMP Wed Dec 18 05:37:46 UTC 2019 > x86_64 x86_64 x86_64 GNU/Linux > $ dpkg -l|grep nouveau > ii libdrm-nouveau2:amd64 2.4.99-1ubuntu1 > amd64 Userspace interface to nouveau-specific kernel DRM services -- > runtime > ii xserver-xorg-video-nouveau 1:1.0.16-1 > amd64 X.Org X server -- Nouveau display driver > $ lspci |grep VGA > 01:00.0 VGA compatible controller: NVIDIA Corporation GT218M [NVS 3100M] > (rev a2) > > This is a Dell Latitude E6510, so not exactly bleeding edge. :) > > The system boots just fine, and I can use the laptop without issue. Goes to > sleep just fine. When I resume from sleep, the display is black, and will > not come to life (the back light is on, though). I can ssh in, and run all > kinds of commands; restart the display manager does *not* bring it back to > life. > > Any tips would be greatly appreciated. > > j -- Joshua J. Kugler - Fairbanks, Alaska - joshua@xxxxxxxxxxx Azariah Enterprises - Programming and Website Design PGP Key: http://pgp.mit.edu/ ID 0x68108cbb73b13b6a
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