https://bugzilla.novell.com/show_bug.cgi?id=706024 https://bugzilla.novell.com/show_bug.cgi?id=706024#c12 Felix Miata <mrmazda@earthlink.net> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |ASSIGNED InfoProvider|mrmazda@earthlink.net | --- Comment #12 from Felix Miata <mrmazda@earthlink.net> 2011-07-21 05:35:46 UTC --- I thought so for a long time, but apparently it's video chip and/or driver dependent. It turns out copy & paste from old working xorg.conf files is an Intel booby trap: using 'Identifier "Monitor[0]"' instead of 'Identifier "Default Monitor"' is a cause of unexpected results. It took a while to respond because I was vexed by the differences between DVI NVidia behavior & those of Intel & ATI, plus TargetRefreshRate, PreferredMode & DisplaySize not always obeyed or not uniformly as a group. To reproduce: 1-Connect KMS-supported Intel or ATI video 12.1M3 system to a CRT supporting 1600x1200, 1792x1536, 1856x1392, 1920x1440 & 2048x1536 at up to at least 85 refresh 2-Start X with no xorg.conf, and no regular files in xorg.conf.d/ except a valid 50-monitor.conf containing: Section "Monitor" Identifier "Monitor[0]" # Identifier "Default Monitor" HorizSync 30-120 VertRefresh 56-86 Option "TargetRefreshRate" "60" Option "DDC" "off" Option "DefaultModes" "on" DisplaySize 378 284 # 120 DPI @ 1792x1344 Option "PreferredMode" "1792x1344" EndSection Actual results: 1-96 DPI (intel, radeon) 2-1600x1200 resolution (intel, radeon) 3-85 refresh (intel, radeon) 4-black screen (nv/nouveau) Expected results: 1-120 DPI 2-1792x1344 resolution 3-60 refresh Comments: 1-exiting X, moving the comment from the Default Monitor line to the Monitor[0] line, then startx produces expected results with intel, but not with radeon or nouveau. 2-exiting X, leaving the comment at the Default Monitor line or moving it to the Monitor[0] line, placing in xorg.conf.d/ the 1 July 50-device.conf & 50-screen.conf files from M3 rpms, then startx produces unexpected results with radeon. 3-exiting X, moving the comment from the Default Monitor line to the Monitor[0] line, placing in xorg.conf.d/ the 22 April 2010 50-device.conf & 50-screen.conf files from M0 rpms (identical to 11.3's), then startx produces expected results with radeon. 4-As long as there is no more than one 'Section "Monitor"' anywhere in xorg.conf or /xorg.conf.d/, it ought not matter the identifier used in that one and only non-default section, regardless of driver. 5-I still don't know why DVI 8600GT works in WinXP, 11.4 and Fedora 15 but not 12.1. 6-for purposes of this comment not taking any further time to formulate, I used only 3 systems, i865G for intel (gx27b), rv200 for radeon (m7ncd), DVI 8600GT for nouveau (gx28b). i915G, i845G, i945G, i810, iG31, nv11 & rv380 remain available to further test if necessary. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.