Date: Mon, 27 Jun 2016 20:02:47 +0800 From: alphachi <alphachi@mediaspirit.org> To: Polytropon <freebsd@edvax.de> Cc: "Charles W. Ross" <cwr@core.cwross.com>, "list: freebsd" <freebsd-questions@freebsd.org> Subject: Re: Resolution on SCFB X11 Driver Message-ID: <CAJN5%2BGvPuC5q1iv-2Wb633wiR55%2BpbTsTLzdi8gw%2B_EwaW3_Gg@mail.gmail.com> In-Reply-To: <20160624211629.cfeec2df.freebsd@edvax.de> References: <1466789057.3429597.647623793.146F091D@webmail.messagingengine.com> <20160624211629.cfeec2df.freebsd@edvax.de>
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https://forums.freebsd.org/threads/55222/ 2016-06-25 3:16 GMT+08:00 Polytropon <freebsd@edvax.de>: > On Fri, 24 Jun 2016 13:24:17 -0400, Charles W. Ross wrote: > > Hi all, > > > > I'm running FreeBSD 10.3 on an Intel NUC with 4th generation graphics. > > This is not supported by the i915 driver yet, so I'm using the SCFB > > (frame buffer) driver. > > > > It works, but I can't seem to set an optimal resolution. My display (24" > > Dell) supports 1920*1200, but the system only permits X11 to operate at > > 1280*1024. > > > > I have tried the usual settings in xorg.conf to define the display's > > "Modes" at 1920*1200, but no luck. Running 'xrandr' presents only one > > option: 1280*1024. > > > > I know the SCFB driver is capable of operating at higher resolutions, > > does anyone have any tips on how to set this? > > Some years ago, I had a similar problem with the nvidia driver > not providing a screen size biiger than 1024x768 (which isn't > that great on an 21" 4:3 CRT), so I tested and collected some > tweaks for xorg.conf. Maybe those are driver-specific or even > outdated, but maybe they can be an inspiration for further > investigations. > > I did manually define the monitor's physical parameters to > allow X to calculate the required resolution and size: > > Section "Monitor" > Identifier "Monitor0" > VendorName "Eizo" > ModelName "FlexScan F980" > HorizSync 30.0 - 137.0 > VertRefresh 50.0 - 160.0 > Option "DPMS" "false" > DisplaySize 410 305 > # X*Y in mm for DPI calculation, cf. xinit -- -dpi 72/75/96/115 > EndSection > > In that section, if I set > > Option "PreferredMode" "1920x1200" > > the system locked up. No idea why. > > Later on, I tried to set the DPI size and disable EDID information > retrieval: > > Section "Device" > Identifier "Card0" > Driver "nvidia" > [...] > Option "UseEdid" "FALSE" > Option "UseEdidDpi" "FALSE" > Option "DPI" "96 x 96" > EndSection > > In the "most important section" of xorg.conf, I could successfully > set the screen sizes to switch manually (with Ctrl+Alt+[+]/[-] keys) > or via program (for example games that activated a full screen mode > that was not the "usual" mode). > > Section "Screen" > Identifier "Screen0" > Device "Card0" > Monitor "Monitor0" > DefaultDepth 24 > SubSection "Display" > Viewport 0 0 > Depth 24 > Visual "TrueColor" > Modes "1400x1050" "1152x864" "1024x768" > "800x600" "640x480" "320x240" > EndSubSection > EndSection > > In case of a flat panel, all size settings should be the same, and > in the "Screen" section, there should be only one entry of the > desired format. > > I always could manually switch to the desired mode: > > xrandr --fb 1400x1050 > xrandr --size 1400x1050 > > which I had temporarily put into ~/.xinitrc, but that looked wrong. > > With "xrandr" without parameter) you should then get a list of the > available modes, with the one selected at the top. > > > > -- > Polytropon > Magdeburg, Germany > Happy FreeBSD user since 4.0 > Andra moi ennepe, Mousa, ... > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" > -- Paranoid in Sabbath ...
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