Re: Fedora 24 KDE screen resolution issue

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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 the
>> 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 +
>      1920x1440     60.00
>      1856x1392     60.01
>      1792x1344     60.01
>      1600x1200     60.00
>      1400x1050     59.98
>      1280x1024     60.02
>      1280x960      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

	Section "Monitor"

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 "Monitor"', and

	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 used
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:

	video=1366x768@60

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/
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