Thread: lock X resolution (for DVI-DL Y-adapter)

right now, 12.10. 13.04.


use dvi dual-link y adapter mirror 2560x1600 display. 1 monitor hp lp3065, other dell 3008wfp. works quite of time.

unfortunately, @ bootup time, 1 of 2 can connected. , every once in while, after computer has slept , re-awakening, not. presumably, video card ([radeon hd 5400/6300 series) querying monitor resolution , gets 2 monitors' information in garbled form.

so, take running resolution , lock it. believe /var/log/xorg.0.log still contains correct log, , getting

code:

[ 21709.366] (ii) fglrx(0): printing ddc gathered modelines:  [ 21709.366] (ii) fglrx(0): modeline "2560x1600"x0.0  268.50  2560 2608 2640 2720  1600 1603 1609 1646 +hsync -vsync (98.7 khz ep)

i contemplating sticking /etc/x11/xorg.conf:

code:

section "serverlayout"  	identifier     "aticonfig layout"  	screen      0  "aticonfig-screen[0]-0" 0 0  endsection    section "module"  endsection    section "monitor"  	identifier   "aticonfig-monitor[0]-0"  	option	    "vendorname" "ati proprietary driver"  	option	    "modelname" "generic autodetecting monitor"  	option	    "dpms" "true"  	modeline    "2560x1600 60.0"  268.50  2560 2608 2640 2720  1600 1603 1609 1646 +hsync -vsync  endsection    section "device"  	identifier  "aticonfig-device[0]-0"  	driver      "fglrx"  	busid       "pci:1:0:0"  endsection    section "screen"  	identifier "aticonfig-screen[0]-0"  	device     "aticonfig-device[0]-0"  	monitor    "aticonfig-monitor[0]-0"  	defaultdepth     24  	subsection "display"  		viewport   0 0  		depth     24  		modes "2560x1600"  	endsubsection  endsection

is right way this? other suggestions?

the following seems work:

## goes /usr/share/x11/xorg.conf.d/10-monitor.conf


section "monitor"
identifier "monitor0"
modeline "2560x1600" 268.00 2560 2608 2640 2720 1600 1603 1609 1646 +hsync +vsync
endsection


section "screen"
identifier "screen0"
device "dvi-i-2"
option "modevalidation" "allownon60hzmodesdfpmodes, noediddfpmaxsizecheck, novertrefreshcheck, nohorizsyncch
eck, nodfpnativeresolutioncheck, nomaxsizecheck, nomaxpclkcheck, allownonedidmodes, noedidmaxpclkcheck"
monitor "monitor0"
defaultdepth 24
subsection "display"
depth 24
modes "2560x1600"
endsubsection
endsection

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