xorg.conf problem

[jp734]

Have the latest stable iso (kernel 4.2.9) and installed frugal. PC boots with no problem BUT I have two monitors and it only works as cloned. xrandr only shows one monitor as well. The video card is an old Radeon HD 5450. I've tried both the amdgpu and ati/radeon drivers. Again, both drivers work with my video card, just can't set my second monitor as an extension. So I tried creating a custom configuration. I created monitor, screen, device and serverlayout configuration files and saved them under /usr/local/share/X11/xorg.conf.d folder. When I reboot the pc with the configurations, X will not start and /var/log/Xorg.0.log says "No device detected!".  If I delete my device config file and leave the rest, X starts just fine but of course with a clone monitor.

My device configuration file is a simple one but enough to stop X.

Section "Device"
    Identifier  "Card0"
    Driver      "amdgpu"
    BusId      "PCI:1:0:0"
EndSection

System Info: Core 2 Quad 9500 2.8 GHz, Radeon HD 5450, latest coreplus iso, Xorg 7.7.

I'm guessing maybe I missed to install something but I am not sure and what if my guess is correct.

[curaga]

You should use the radeon driver (amdgpu is only for the very latest), and first try to set it up using xrandr commands (see Arch wiki).

[jp734]

Thanks curaga for the reply.

Okay. Didn't know that but I will go and stick with the radeon driver. I am not familiar with the xrandr commands yet but I will try. One other question. I noticed another error on /var/log/Xorg.0.log file and it says:

[  1104.114] (EE) open /dev/dri/card0: No such file or directory
[  1104.114] (WW) Falling back to old probe method for modesetting
[  1104.114] (EE) open /dev/dri/card0: No such file or directory
[  1104.114] (EE) Screen 0 deleted because of no matching config section.
[  1104.114] (II) UnloadModule: "radeon"
[  1104.114] (EE) Screen 0 deleted because of no matching config section.
[  1104.114] (II) UnloadModule: "modesetting"

Any clue on this one?

[Juanito]

[  1104.114] (EE) open /dev/dri/card0: No such file or directory

This just shows that Xorg-7.7-3d is not loaded

[jp734]

I checked my On Boot Maintenance and Xorg-7.7-3d.tcz is on the list. Also checked my /tce/optional folder and the file exists (8656 K - file size) . Are there any other files that are supposed to be loaded?

[curaga]

The graphics- modules and firmware-radeon are also needed for Radeon 3d. They should be dependencies, though.

[jp734]

Loaded modules.tcz, now everything is working perfectly. Thanks....