resolution for x1550 series

moore · Jan 4, 2008, 10:42 AM

hi,
Im pretty new to linux so please bare with me.

I have just updated my monitor to LG Flatron Wide.
Optimal resolution is 1680x1050.
The VGA is radeon x1550

I have a new installation of Fedora Core 6. - 2.6.18-1.2798.fc6 on AMD x86_64 machine.
I download the display driver from the AMD site and was then able to use the monitor.
Driver version is 8.44.3

However the highest setting on the resolution is 1280x1024

How can I configure to achieve optimal resolution?

I did try the following and rebooting but it didnt appear to make a difference

Code:

[root]# gtf 1680 1050 60

  # 1680x1050 @ 60.00 Hz (GTF) hsync: 65.22 kHz; pclk: 147.14 MHz
  Modeline "1680x1050_60.00"  147.14  1680 1784 1968 2256  1050 1051 1054 1087  -HSync +Vsync

[root]#

and the I put that into the xorg.conf file as follows

Code:

# Xorg configuration created by pyxf86config

Section "ServerLayout"
    Identifier     "Default Layout"
    Screen      0  "aticonfig-Screen[0]" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
EndSection

Section "Module"
EndSection

Section "InputDevice"
    Identifier  "Keyboard0"
    Driver      "kbd"
    Option        "XkbModel" "pc105"
    Option        "XkbLayout" "gb"
EndSection

Section "Monitor"
    Identifier   "aticonfig-Monitor[0]"
    Option        "VendorName" "ATI Proprietary Driver"
    Option        "ModelName" "Generic Autodetecting Monitor"
    Option        "DPMS" "true"
        Modeline "1680x1050_60.00"  147.14  1680 1784 1968 2256  1050 1051 1054 1087  -HSync +Vsync
EndSection

Section "Device"
    Identifier  "Videocard0"
    Driver      "vesa"
EndSection

Section "Device"
    Identifier  "aticonfig-Device[0]"
    Driver      "fglrx"
EndSection

Section "Screen"
    Identifier "Screen0"
    Device     "Videocard0"
    DefaultDepth     24
    SubSection "Display"
        Viewport   0 0
        Depth     24
                Modes "1680x1050_60.00"
    EndSubSection
EndSection

Section "Screen"
    Identifier "aticonfig-Screen[0]"
    Device     "aticonfig-Device[0]"
    Monitor    "aticonfig-Monitor[0]"
    DefaultDepth     24
    SubSection "Display"
        Viewport   0 0
        Depth     24
                Modes "1680x1050_60.00"
    EndSubSection
EndSection

I would appreciate any suggestions/guidance?
thank you.

DarkFoss · Jan 7, 2008, 05:47 PM

The driver is bugged... from the release notes :
Connecting a display device that supports 1680x1050 to a system running Linux may result in a maximum display resolution of 1280x1024 only being available

NAZ2222 · Jan 7, 2008, 06:26 PM

Maybe use a older driver version! search in the phoronix forums, it's all about linux there!!

moore · Jan 11, 2008, 09:05 AM

Thanks for replies.
I was able to load an older version and was able to get 1400x1050.
This will do until bug is resolved.

Thanks.