** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/729788
Title:
xrandr reports incorrect max resolution from displayport in laptop
dock i915
Status in “xserver-xorg-video-intel” package in Ubuntu:
Fix Released
Bug description:
Binary package hint: xserver-xorg-video-intel
I am using a X201 on the dock with DVI/Displayport outputs to matched
Dell 22" lcds doing 1920x1080. It was working correctly, but I redid
my install and updated my laptop bios. After the new install xrandr
reports the displayport monitor to only be able to do 1280x1024
resolution (vs 1920).
I've tried to manaully force it:
% xrandr --addmode DP1 1920x1080
% xrandr --output LVDS1 --off --output DP1 --mode 1920x1080
# /var/log/syslog output
kernel: [44206.334502] [drm:drm_crtc_helper_set_config] *ERROR* failed to
set mode on crtc ffff8802322a0800
and get the crtc error and no display pops up.
I've loaded the xorg-edgers ppa with no difference. I've also tested
the natty alpha3 live usb to see if an updated package/kernel combo
might help.
I've run across a lot of posts like this, most having to do with
nouveau-drm, so not sure where this falls exactly.
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