FYI this is also happening for me, LTS 16.04.3 + HWE (kernel and xorg pkgs),
Thinkpad x270 w/ Integrated Graphics Chipset: Intel(R) HD Graphics 620.
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
Blank screen when starting X after upgrading from 4.10 to 4.13.0-26
Status in linux package in Ubuntu:
Status in linux source package in Artful:
I'm following the HWE kernels in Ubuntu 16.04, so my kernel was
upgraded today from 4.10.0-42 to 4.13.0-26. After rebooting, the
splash screen and disk encryption passphrase prompt showed correctly,
but when X started, the screen went blank. Logs showed everything
running as normal despite the blank screen. Rebooting with the
"nomodeset" kernel parameter fixed the issue but is not suitable as a
permanent workaround since it disables my external monitor. Rebooting
back into 4.10 also fixed the issue.
I am using a ThinkPad X240 laptop, current HWE X.org packages. I tried
both intel and fbdev X drivers, both gave a blank screen.
lsb_release: Ubuntu 16.04.3 LTS
In Xorg.0.log with fbdev, I saw:
[ 23.646] (EE) FBDEV(0): FBIOPUTCMAP: Invalid argument
repeated 239 times.
Typical kernel messages attached (from kern.log, reformatted to look
To manage notifications about this bug go to:
Mailing list: https://launchpad.net/~kernel-packages
Post to : email@example.com
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp