Date: Mon, 25 May 2009 08:51:40 -0500 From: Robert Noland <rnoland@FreeBSD.org> To: perryh@pluto.rain.com Cc: freebsd-x11@FreeBSD.org Subject: Re: re-probing DDC/EDID Message-ID: <1243259500.1787.986.camel@balrog.2hip.net> In-Reply-To: <4a1a288f.Z0ZX9ngtqKNukKbL%perryh@pluto.rain.com> References: <4a164879.9A1SKOjgHUb7X9q6%perryh@pluto.rain.com> <1243015185.63754.104.camel@balrog.2hip.net> <4a1724c4.OuQCIyZ462E1cHYx%perryh@pluto.rain.com> <1243089327.63754.1345.camel@balrog.2hip.net> <4a1a288f.Z0ZX9ngtqKNukKbL%perryh@pluto.rain.com>
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--=-b7MlU/lk7NAVUc/cYU+x Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Sun, 2009-05-24 at 22:11 -0700, perryh@pluto.rain.com wrote: > Robert Noland <rnoland@FreeBSD.org> wrote: > > On Fri, 2009-05-22 at 15:18 -0700, perryh@pluto.rain.com wrote: > > > Robert Noland <rnoland@FreeBSD.org> wrote: > > > > On Thu, 2009-05-21 at 23:38 -0700, perryh@pluto.rain.com wrote: > > > > > Is there any way to re-probe the monitor's DDC/EDID while the > > > > > X server is running? > > > ... > > > > xrandr? > > > > > > That seems to return the set of resolutions probed at startup > > > (i.e. those of the old monitor): > > > > what driver are you using? >=20 > ATI, I think. I'll append xorg.conf (with comments deleted, > to reduce its size a bit). >=20 > > Radeon or Intel *should* detect a changed display I think. > > You really shouldn't need to set modelines anymore. >=20 > When setting up the previous monitor -- and the one before that -- > it seemed necessary to remove unusable modelines from xorg.conf, > else CtrlAlt+ and CtrlAlt- would set modes that produced a messed- > up display or a blank screen. (The monitors' DDC reports -- or > -configure's interpretation of them -- apparently included modes > that would not actually work.) >=20 > > Do keep in mind that since the front buffer is created at startup > > time and can't currently be re-sized on the fly that you need to > > set the virtual screen size to the maximum that you intend to use > > or that will be the highest mode used (and displayed by xrandr). >=20 > I had expected something along those lines, which is why I didn't > expect to be able to _use_ 1920x1200 without restarting, but I'd > still expect to be able to rerun the probe of the monitor and get > the new report -- including the modelines that would have been > generated if I had been running that probe "for real". Ok, I still think that you are going about this the wrong way in a randr based world... If you look at your xorg log, you should see the modes that are probed and calculated for the display. I think that you should remove all the modelines from the Monitor section. The Modes listed in the screen section I think is ok, but I'm not sure how useful it really is. If you add a Virtual 1920 1200 line to the Display section, then your initial front buffer will be sized large enough to use the new mode. (You are probably only using Depth 24) See man xorg.conf. If randr is producing invalid modes, then either the display is quirky and not giving the right data to the ddx driver or it's a bug that needs to be looked at upstream. robert. >=20 > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D xorg.conf =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D >=20 > Section "ServerLayout" > Identifier "X.org Configured" > Screen 0 "Screen0" 0 0 > InputDevice "Mouse0" "CorePointer" > InputDevice "Keyboard0" "CoreKeyboard" > EndSection >=20 > Section "Files" > RgbPath "/usr/X11R6/lib/X11/rgb" > ModulePath "/usr/X11R6/lib/modules" > FontPath "/usr/X11R6/lib/X11/fonts/misc/" > FontPath "/usr/X11R6/lib/X11/fonts/TTF/" > FontPath "/usr/X11R6/lib/X11/fonts/Type1/" > FontPath "/usr/X11R6/lib/X11/fonts/CID/" > FontPath "/usr/X11R6/lib/X11/fonts/75dpi/" > FontPath "/usr/X11R6/lib/X11/fonts/100dpi/" > EndSection >=20 > Section "Module" > Load "dbe" > Load "dri" > Load "extmod" > Load "glx" > Load "record" > Load "xtrap" > Load "freetype" > Load "type1" > EndSection >=20 > Section "InputDevice" > Identifier "Keyboard0" > Driver "kbd" > EndSection >=20 > Section "InputDevice" > Identifier "Mouse0" > Driver "mouse" > Option "Protocol" "auto" > Option "Device" "/dev/psm0" > Option "ZAxisMapping" "4 5 6 7" > EndSection >=20 > Section "Monitor" > Identifier "Monitor0" > VendorName "BTC" > ModelName "LM-1702" > Modeline "1280x1024" 108.00 1280 1328 1440 1688 1024 1025 1028 1066 += hsync +vsync > Modeline "1024x768" 65.00 1024 1048 1184 1344 768 771 777 806 -= hsync -vsync > Modeline "800x600" 40.00 800 840 968 1056 600 601 605 628 += hsync +vsync > Modeline "640x480" 25.20 640 656 752 800 480 490 492 525 -= hsync -vsync > Option "DPMS" > EndSection >=20 > Section "Device" > Identifier "Card0" > Driver "ati" > VendorName "ATI" > BoardName "3D Rage Pro AGP 1X/2X" > ChipSet "ati" > ChipId 0x4742 > ChipRev 0x5c > BusID "PCI:1:0:0" > EndSection >=20 > Section "Screen" > Identifier "Screen0" > Device "Card0" > Monitor "Monitor0" > SubSection "Display" > Viewport 0 0 > Depth 1 > Modes "1280x1024" "1024x768" "800x600" "640x480" > EndSubSection > SubSection "Display" > Viewport 0 0 > Depth 4 > Modes "1280x1024" "1024x768" "800x600" "640x480" > EndSubSection > SubSection "Display" > Viewport 0 0 > Depth 8 > Modes "1280x1024" "1024x768" "800x600" "640x480" > EndSubSection > SubSection "Display" > Viewport 0 0 > Depth 15 > Modes "1280x1024" "1024x768" "800x600" "640x480" > EndSubSection > SubSection "Display" > Viewport 0 0 > Depth 16 > Modes "1280x1024" "1024x768" "800x600" "640x480" > EndSubSection > SubSection "Display" > Viewport 0 0 > Depth 24 > Modes "1280x1024" "1024x768" "800x600" "640x480" > EndSubSection > EndSection --=20 Robert Noland <rnoland@FreeBSD.org> FreeBSD --=-b7MlU/lk7NAVUc/cYU+x Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (FreeBSD) iEYEABECAAYFAkoaomwACgkQM4TrQ4qfROPIQACfewfyt55kPKYusoD4/9+w78cX m3gAnj/JUBLQ/L4Cx8m/TUVb+6ZC03qc =NiaJ -----END PGP SIGNATURE----- --=-b7MlU/lk7NAVUc/cYU+x--
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