Public bug reported:
After upgrade to bionic the highest detected resolution of my monitor
was 1920x1200 instead of the 2560x1440 that it is capable of and that
worked previously.
My graphics card is a Radeon RX480 and this seems to be related to the
AMDGPU DC changes in kernel 4.15.
Passing
** Attachment added: "xorg log when booting kernel 4.16.5"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1767701/+attachment/5129595/+files/xorg_4.16.5.log
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Also confirmed fixed on 4.10.0-041000rc3-generic
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https://bugs.launchpad.net/bugs/1655450
Title:
monitors not disconnected after undocking
Status in linux package in
This happened after upgrade to 16.10 I believe (unfortunately I am not
100% sure about this). I can confirm that this is fixed using
4.9.2-040902-generic from mainline kernels.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Tags added: kernel-fixed-upstream
**
Public bug reported:
I have a Lenovo X1 Carbon (4th gen) and using the Lenovo one-link+ docking
station. The laptop is connected through the docking station to 2 external
monitors when docked. When undocking the laptop, the laptop does not detect
that the monitors have been disconnected
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