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Old 10-24-2003, 11:51 AM   #1
neozero62
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Registered: Oct 2003
Distribution: Red Hat 9
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Unhappy Why cant I change my resolution in Red Hat 9?


I am running Red Hat 9.0 on a HP Laptop. I am using a ATI Radeon Mobility 7500 Video Card. I am trying to change my screen Resolution to 1280x1024. I open the Display Settings under Gnome, and select this from the list. A Dialog Box tells me I must log out, and restart the xwindow system. I logoff, and restart my laptop, only to come back the 800x600. I have tryed to change it many times with no sucess. Can someone tell me what I am doing wrong? Thanks for your time.
 
Old 10-24-2003, 12:12 PM   #2
Mara
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Probably something goes wrong. Look into /var/log/XFree86.0.log, try to find messages about resolutions. If unsure, please post the fragments you think may be important (the whole file is long).
I'd try first something in between. There's quite big change between 800x600 and 1280x1024.
BTW Which video driver do you use?
 
Old 10-24-2003, 01:32 PM   #3
neozero62
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I use the radeon driver that redhat comes with. It seams to pick up the card fine. I looked in the XFree86.0.log and found nothing that I could see about resolution except modes. I know that the resolution is a big jump, and I have tryed some midway sizes with the same problem. Here is a bit of the XFree86.0.log file that at least has something about the video card in it:

(II) RADEON(0): PLL parameters: rf=2700 rd=12 min=12000 max=35000; xclk=18300
(==) RADEON(0): Using gamma correction (1.0, 1.0, 1.0)
(II) RADEON(0): Validating modes on Primary head (DDCType: 0) ---------
(II) RADEON(0): Total number of valid DDC mode(s) found: 0
(II) RADEON(0): Valid mode using on-chip RMX: 800x600
(II) RADEON(0): Valid mode using on-chip RMX: 640x480
(II) RADEON(0): Total number of valid FP mode(s) found: 2
(--) RADEON(0): Virtual size is 800x600 (pitch 800)
(**) RADEON(0): *Mode "800x600": 65.0 MHz (scaled from 0.0 MHz), 48.4 kHz, 60.0 Hz
(II) RADEON(0): Modeline "800x600" 65.00 800 1040 1176 1344 600 770 776 806
(**) RADEON(0): *Mode "640x480": 65.0 MHz (scaled from 0.0 MHz), 48.4 kHz, 60.0 Hz
(II) RADEON(0): Modeline "640x480" 65.00 640 1040 1176 1344 480 770 776 806
(==) RADEON(0): DPI set to (75, 75)

Again, Thanks for your time and help.
 
Old 10-25-2003, 11:39 AM   #4
neozero62
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Registered: Oct 2003
Distribution: Red Hat 9
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I found the problem. Aparintly RedHat detected my screen wrong. I loaded the correct driver, and changed the reslution to the setting I wanted, rebooted, and it all worked great. Thanks for you help!
 
  


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