Arch Linux

2Pug

Member

Registered: 2011-04-21

Posts: 10

[SOLVED] Xorg - no devices detected, no screens found

I've used Fedora for years and have never used another distro till now, so please bear with me.

I got a Acre Aspire 5552G with has a ATI Radeon HD 6650M. I installed Fedora on it just a make sure that everything worked and it did.
I then did a fresh install of Arch and that when some issues started to pop up.

First the Broadcom NIC didn't want to be seen by the system (I'm only adding my fix in case someone else has the same problem)
# modprobe -r tg3
# modprobe broadcom
# modprobe tg3
Add the below line in your /etc/rc.conf file:
MODULES=(broadcom)

Everything then started to go smooth until I got to Xorg; which refused to work.
I did the KMS thing, but that didn't help.
I did all sorts of configurations to my xorg.conf, xorg.d/ and other files but nothing seemed to have any effect.
I did see a change when I turned off the auto detection of hardware and then did a X -configure which worked, but only for vesa.
I'm starting to think that I'm missing something in my xorg.conf file but I've tried everything that I could find posted on the internet and nothing seems to work.
X -configure lists my video drives as 'ati, radeon, and vesa' and it also lists all the ATI drivers in the Xorg log.
vesa - works
radeon - error = no devices found, no screens found
ati - same as radeon

Section "ServerFlags"
    Option "AutoAddDevices" "False"
EndSection

Section "ServerLayout"
    Identifier     "X.org Configured"
    Screen      0  "Screen0" 0 0
    InputDevice    "Mouse0" "CorePointer"
    InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
    ModulePath   "/usr/lib/xorg/modules"
    FontPath     "/usr/share/fonts/misc/"
    FontPath     "/usr/share/fonts/TTF/"
    FontPath     "/usr/share/fonts/OTF/"
    FontPath     "/usr/share/fonts/Type1/"
    FontPath     "/usr/share/fonts/100dpi/"
    FontPath     "/usr/share/fonts/75dpi/"
EndSection

Section "Module"
    Load  "extmod"
    Load  "record"
    Load  "dri"
    Load  "dbe"
    Load  "dri2"
    Load  "glx"
EndSection

Section "InputDevice"
    Identifier  "Keyboard0"
    Driver      "kbd"
EndSection

Section "InputDevice"
    Identifier  "Mouse0"
    Driver      "mouse"
    Option        "Protocol" "auto"
    Option        "Device" "/dev/input/mice"
    Option        "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
    Identifier   "Monitor0"
    VendorName   "Monitor Vendor"
    ModelName    "LCD Panel 1280x768"
    Option         "DPMS"
EndSection

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
        ### [arg]: arg optional
        #Option     "ShadowFB"               # [<bool>]
        #Option     "DefaultRefresh"         # [<bool>]
        #Option     "ModeSetClearScreen"     # [<bool>]
    Identifier  "Card0"
    Driver      "radeon"
    VendorName  "ATI Technologies Inc"
    #BoardName   "ATI Mobility Radeon HD 5570"
    #BusID       "PCI:1:0:0"
    Option        "MigrationHeuristic"    "greedy"
    Option        "AccelDFS"    "true"
    Option        "EnableDepthMoves"     "true"
    Option        "EnablePageFlip"    "true"
    Option        "AccelMethod"    "XAA"
      Option        "DRI"    "off"
EndSection

Section "Screen"
    Identifier "Screen0"
    Device     "Card0"
    Monitor    "Monitor0"
    SubSection "Display"
        Viewport   0 0
        Depth     1
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     4
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     8
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     15
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     16
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     24
    EndSubSection
EndSection

Section "Extensions"
    Option    "Composite" "0"
EndSection

[SOLVED]
I'm not really sure what fixed it, but I took out the xorg.conf file from /etc/X11 and it worked fine.
I had done a full update that night so it might of updated a package that was causing the problem but I can't say for sure.

Last edited by 2Pug (2011-04-22 15:01:02)

Pajaro

Member

Registered: 2004-04-21

Posts: 884

Re: [SOLVED] Xorg - no devices detected, no screens found

post your /var/log/Xorg.0.log

Gusar

Member

Registered: 2009-08-25

Posts: 3,605

Re: [SOLVED] Xorg - no devices detected, no screens found

Remove the xorg.conf, it's not necessary. Quite likely the main issue is you're missing firmware. So install the linux-firmware package. The other possibility is your graphic card is too new for the components currently in Arch. In any case, do as Pajaro says, post your /var/log/Xorg.0.log

2Pug

Member

Registered: 2011-04-21

Posts: 10

Re: [SOLVED] Xorg - no devices detected, no screens found

Ok, I'm not sure what happened but taking out the xorg.conf worked. What confuses me is that I had done that ton of times before and it didn't work.
The only thing that I can think of is that had I changed my repos's last night and did a full update which might of installed an updated version of something that fixed it.

I'm going to mark this as solved even though I don't like marking it as solved when I don't know what precisely fixed it. The only reason that I put an xorg.conf in /etc/X11 in the first place was because, not having it, would give me the same errors. Now it works perfectly??? Wait... the dollar under my laptop is missing so I'm guessing that the arch fairy came during the night and fixed it.