PROBLEM: 8.39 with 1440x900LCD
All installed well on my Fedora FC7 system
X works dandy.
BUT: No 1440x900 mode, which happens to be my LCDs native resoluition.
Best I can get is a horizontally stretched 1280x1024
Tried many things, Modelines, etc but while I can occasionally select 1440x900, it then produces a black screen and the monitor loses synch.
Generated original config with system-config-display
ran aticonfig --initial to make it "ATI-style"
Had to vi the xorg.conf and edit the driver line from "FGLRX" to "radeon" to that the aticonfig had something to do..
modified the identifiers to the "ati-generated Monitor" style of naming so that aticonfig likes it.
Tried to adjust res various ways, inc Catalyst control panel, aticonfig --resolution, manually editing xorg.conf, etc.
No matter what I do, I can get lots of choices for res, but none of those lists include 1440x900
If I manually edit to include it, then startx, it goes out of monitor sync range.
Yes, I set the hsync and vsync settings, although system-config-display got pretty close the first time.
Yes, I ran gtf to get modeline timings and tried a number of those variants.. seemingly ignored.
Yes, I tried Option DPMS "0" and I tored commenting that line out as well.
IF I use an nVidia card and ddriver I can make it work if I use the "Ignore EDID" option.
Anyone have any suggestions, please?
Read this and this.
You need the correct Hync and Vsync in your Monitor Section and the correct Modeline ("Modeline "1440x900" 100.000 1440 1456 1464 1480 900 916 924 940 -hsync -vsync" apparently) in your Modes section.
Also, you'll have to say what changes you did to you xorg.conf, not just that you tried something (ie post the relevant section)
Last edited by Xipeos; 08-01-2007 at 06:34 AM.
I generated modelines with gtf and tried them. Several different frequencies ( 55 to 70 in 4 steps) were tried.
Originally Posted by Xipeos
The vsync and hsync values were originally created by system-config-display, but were higher than the manual for the monitor showed, so I manually edited those.
I have tried just about every option I could think of from reading various docs and forums, and I DO have success in using this with the nVidia binary driver, and the "ignoreEDID" setting.
The question is WHICH of the xorg.conf files I should post, since there are many, and all work just great, EXCEPT at 1440x900
This is inherent flaw in 8.39 drivers - use 8.40
Some good news and some bad:
Originally Posted by Alistair
Good news first: 1440x900 is now recognized with 8.40
Bad news:screen is messed up. In XORG a part from the centre is copied to the lower left, and there are many other assorted artifacts.
Pretty well unusable.
Back to VESA driver for now..