CS DBA composed on 2016-09-28 19:26 (UTC-0600):
Please provide Xorg.0.log or its journalctl equivalent - without having run
xrandr in the session.
What brand and model is your display?
Felix Miata wrote:
> When a session is first started without running xrandr, what is
> output from 'xrandr -q' run in Xterm or Konsole?
$ xrandr -q
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 8192 x 8192
eDP-1 connected primary 1024x768+0+0 (normal left inverted right x axis
y axis) 310mm x 174mm
2560x1440 60.00 +
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)
Bad sign that all outputs show as disconnected, which may be why only the
native 2560x1440 and 4:3 modes are listed, and you get no offer of 1366x768.
1-Does the list differ with 'xrandr -q --output eDP-1'?
2-Does the list change if you start an IceWM session instead of Plasma?
3-Does the list change if you create a file containing, or modify one
somewhere in /etc/X11/xorg.con*, to include:
Option "DefaultModes" "on"
in either a Plasma session or an IceWM session?
4-Does it help if you start a Plasma session with:
a-'Option "PreferredMode" "1366x768"' in 'Section
b-Disabled automatic startup of kscreen (set under [Module-kscreen]
'autoload=false' in kdedrc) (this can be done in systemsettings,
but I don't remember where it's squirreled away)
5-'dnf remove xorg-x11-drv-intel' will cause use of the modesetting driver
integral to F24's Xorg server instead of the Intel-specific driver. Optionally,
instead of package removal, /etc/X11/xorg.con* 'Section "Device"' can be
to specify use of the modesetting driver instead of intel (less simple than
simply removing the driver package). Does doing so help?
6-Last but not least, probably best tried first, include on your bootloader cmdline:
If this does it, reconfiguring Grub2 to specify that gfxmode should have the same
result, but as I don't use Grub2, I can't test it.
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata *** http://fm.no-ip.com/