Back to 4.4.38 because flickering eventually led to a complete freeze.
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https://bugs.launchpad.net/bugs/1638565
Title:
HP Envy 34c resolution maxes out at 1920x1200
To manage
I'm on the 4.9 kernel today with the following .xprofile. Much less
flicker but it still comes up every once in a while.
xrandr --newmode "3440x1440" 196.25 3440 3600 3952 4464 1440 1443 1453 1468
+hsync -vsync
xrandr --addmode HDMI-1 "3440x1440"
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And now on 4.8.0-27-generic #29-Ubuntu SMP Thu Oct 20 21:03:13 UTC 2016
x86_64 x86_64 x86_64 GNU/Linux:
/sys/class/drm/card0-eDP-1/modes:3200x1800
/sys/class/drm/card0-HDMI-A-1/modes:1920x1200
/sys/class/drm/card0-HDMI-A-1/modes:1920x1080
/sys/class/drm/card0-HDMI-A-1/modes:1920x1080
Weird yes! Thanks for the feedback though. I'm on the 4.4 kernel now
and wanted to report this which is perfect. I'll switch back to the
stock linux-generic in a bit to run the same and post the output here if
that helps.
luis@juno:~/Code/balsamiq/cloud$ grep . /sys/class/drm/*/modes
The only way to get a workable system is to move back to a 4.4 kernel. I
tried that before and still experienced some issues but trying this
latest 4.4 build.
Linux juno 4.4.30-040430-generic #201611010007 SMP Tue Nov 1 04:08:50
UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
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You received this bug
Public bug reported:
Using get-edid, the best resolution is "Mode 0" below, but this doesn't
show up in the Display systems settings panel.
This is read-edid version 3.0.2. Prepare for some fun.
Attempting to use i2c interface
No EDID on bus 0
No EDID on bus 1
No EDID on bus 2
No EDID on bus 3
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