Date: Tue, 1 Aug 2017 21:48:46 -0700 From: David Christensen <dpchrist@holgerdanske.com> To: freebsd-questions@freebsd.org Subject: Re: FreeBSD 11.1, Xfce, and laptop screen and external monitor resolution Message-ID: <e642c740-cfaf-0013-42ee-5c92de669cd8@holgerdanske.com> In-Reply-To: <20170731061847.6f78ba27.freebsd@edvax.de> References: <a8bda0a3-70c2-7af2-da33-3cc86f992160@holgerdanske.com> <20170731061847.6f78ba27.freebsd@edvax.de>
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On 07/30/17 21:18, Polytropon wrote: > On Sun, 30 Jul 2017 19:30:01 -0700, David Christensen wrote: >> When I run 'startxfce4', Xfce starts with a resolution of 1024x768. >> Applications Menu -> Settings -> Display offers two choices: 1024x768 >> and 800x600. How do I set the Xfce resolution to 1280x800 when driving >> the laptop screen? > > Option 1 is to set it using a configuration file "snippet" in the > /usr/local/etc/X11/xorg.conf.d directory, > > xorg.conf: only put section "Screen", subsection "Display", > setting "Modes" with the screen size you want. > > For example, it could look like this: > > Section "Screen" > Identifier "Screen0" > Device "Card0" > Monitor "Monitor0" > DefaultDepth 24 > SubSection "Display" > Viewport 0 0 > Depth 24 > Visual "TrueColor" > Modes "1920x1080" "1280x800" > EndSubSection > EndSection The X.org driver is supposed to read the EDID information for all available displays and act upon it "correctly"; this is not happening. I did some testing using FreeBSD 11.0 -- EDID works. But if I attempt to run in dual-head mode, I get the same bug as FreeBSD 11.1 where windows and dialogs are mostly blacked out. So, there are several bugs at work here. If/when I have the time and inclination, I will try to tease them out one at a time and file bug reports. > You could then probably even use Ctrl+Alt+[+] and Ctrl+Alt+[-] > to switch between the two modes (not tested, but old-fashioned > X could do that). Yes, I'm finding that I need old-school tricks. > > Option 2 is to use xrandr in ~/.xinitrc with the --size > option. This is 2017 and I shouldn't have to mess with low-level X stuff. This is just more infinite bug propagation, as I lamented on the TrueOS forum: https://discourse.trueos.org/t/trueos-2017-07-05-x64-dell-inspiron-e1505-and-external-monitor/1679/5 >> If I connect an external 1920x1080 monitor to the VGA port of the laptop >> and press the Fn+F8 (CRT/LCD) hot key at the GELI prompt, the video >> signal is sent to the external monitor (laptop screen goes dark). (I >> then close the laptop screen.) 'startxfce4' results in Xfce with a >> resolution of 1600x1200. Display offers choices of 1600x1200, >> 1280x1024, 1024x768, 800x600, and 640x480. How do I set the Xfce >> resolution to 1920x1080 when driving the external monitor? > > Similar to the approach for the laptop's screen. You can even > use xrandr from inside a running X session to change the screen > size dynamically. It's also a convenient tool for experiments. > > (Side note: I set up a Dell Latitude D630 laptop with a screen > size of 1280x800 and an external monitor of 1920x1080, but I > use Mate on this specific system which offers the native screen > size in its configuration program.) As above. David
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