4K monitors?

[poma]

On 04.07.2014 00:26, Tom Horsley wrote:
> On Thu, 03 Jul 2014 15:11:34 -0700
> don fisher wrote:
>
>> Can you tell me where documentation exists on how to set up the XWindow
>> system. I used /etc/X11/xorg.conf in the past, but that all appears to
>> have been replaced by something I cannot find.
>
> You don't, it "just works" (except when it doesn't). All the info
> is supposed to come from the EDID reported by the monitor. Any
> tweaks are done at runtime via xrandr, xinput, etc. (which may or
> may not be supported by some GUI setting tool that (maybe) remembers
> and reproduces the settings via things like the gnome
> settings daemon).
>
> On my system at home, I have to override the EDID info to make
> the system believe I have a 47 inch monitor and not a 7 inch
> monitor with incredibly dense resolution :-). This has all
> the same info you used to be able to put in xorg.conf, but now
> it comes in a semi-documented binary file with no good tools
> to edit it instead of an ascii text file. Such an improvement :-(.
>

At least https://www.kernel.org/doc/Documentation/EDID/HOWTO.txt works, right Tom-Sung? :)

$ curl -s https://www.libreoffice.org/bugzilla/attachment.cgi?id=99224 | monitor-parse-edid
Name: TOMSUNG
EISA ID: TOM0469
EDID version: 1.3
EDID extension blocks: 1
Screen size: 102.0 cm x 57.4 cm (46.08 inches, aspect ratio 16/9 = 1.78)
Gamma: 2.2
Digital signal
Max video bandwidth: 230 MHz

	HorizSync 26-76
	VertRefresh 23-60

	# Monitor preferred modeline (60.0 Hz vsync, 67.5 kHz hsync, ratio 16/9, 47 dpi)
	ModeLine "1920x1080" 148.5 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync

	# Monitor supported modeline (60.0 Hz vsync, 47.7 kHz hsync, ratio 16/9, 33 dpi)
	ModeLine "1360x768" 85.5 1360 1424 1536 1792 768 771 777 795 +hsync +vsync


Besides
"Screen size: 16.0 cm x 9.0 cm (7.23 inches, aspect ratio 16/9 = 1.78)"
is a known issue for some of the Samsung Smart(?) TVs, so it is best to contact Samsung directly.


poma