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On Monday 14 September 2009 13:59:45 William Kenworthy wrote: |
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> I ran into the same problem though with different versions of the |
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> software a couple of days ago. The only fix that worked was to -hal |
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> xorg-server, and recreate the xorg.conf file that I had previously |
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> deleted, making sure that EDID and DDC were not being used. |
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> |
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> Section "Device" |
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> Identifier "AtiRadeon" |
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> Driver "radeon" |
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> VendorName "ATI" |
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> Option "DPMS" "On" |
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> Option "EnablePageFlip" "1" |
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> Option "RenderAccel" "1" |
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> Option "AGPMode" "4" |
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> Option "IgnoreEDID" "1" |
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> Option "NoDDC" "1" |
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> EndSection |
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> |
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> Not sure all the settings are optimal, but I have a display thats at |
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> least at a usable resolution ... |
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> |
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> It might seem all and good that xorg automaticly chooses the best |
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> resolution - but it clearly doesnt. This is on a system running as |
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> 1600x1200 for years on the same hardware, with xorg suddenly deciding it |
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> can only do 1280x1024 (and even then, it first defaulted to 1024x768). |
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> Whatever happened to the idea that in Linux (and esp gentoo-linux) its |
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> the "user" thats in control :) |
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> |
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> It certainly seems someone - seemingly xorg - dropped the ball |
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> recently :( |
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I notice that panels are almost always detected correctly - they have a single |
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native resolution defined by the number of elements in the display. |
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CRTs are another story - my spare machine can do better 1600x1200 with a CRT |
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and autodetect logic often sets it lower. Anecdotal evidence via my eyeballs |
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tells me it's because it first figures "optimum" frequencies to run at, then |
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picks the best resolution for that frequency. Personally I don't see the need |
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to run that monitor at 85Hz, lower frequencies are just fine for me. |
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Pre-hal Xorg will do what you tell it to. |
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Post-hal Xorg apparently does what a toss of the coin tells it to. |
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-- |
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alan dot mckinnon at gmail dot com |
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