Problem in loading Nouveau driver

[Paul Bolle]

On Sat, 2014-12-20 at 09:00 +0330, Ali Aminian wrote:
> and after booting the kernel i tried loading Nouveau by following commands:
> 
> 1_insmod drm.ko
> 2_insmod drm_kms_helper.ko
> 3_insmod ttm.ko
> 4_insmod nouveau.ko
> 
> but in the last step it gives me Unknown symbol in module

Why do it by hand when you can modprobe? I don't use nouveau myself, but
om my machine (running v3.18.1) modprobe tells me:
        $ modprobe --show-depends nouveau
        insmod [...]/drivers/gpu/drm/drm.ko 
        insmod [...]/drivers/gpu/drm/drm_kms_helper.ko 
        insmod [...]/drivers/gpu/drm/ttm/ttm.ko 
        insmod [...]/drivers/i2c/algos/i2c-algo-bit.ko 
        insmod [...]/drivers/acpi/video.ko 
        insmod [...]/drivers/platform/x86/wmi.ko 
        insmod [...]/drivers/platform/x86/mxm-wmi.ko 
        insmod [...]/drivers/gpu/drm/nouveau/nouveau.ko

> here is the result of "dmesg | tail" after i tried insmod nouvea.ko:
> 
> drm: module verification failed: signature and/or  required key
> missing - tainting kernel
> [  212.330197] [drm] Initialized drm 1.1.0 20060810
> [  255.336591] nouveau: Unknown symbol i2c_bit_add_bus (err 0)

$ git grep -nw i2c_bit_add_bus | grep EXPORT
drivers/i2c/algos/i2c-algo-bit.c:655:EXPORT_SYMBOL(i2c_bit_add_bus);

Ie, i2c-algo-bit.ko as seen above.

> [  255.336610] nouveau: Unknown symbol mxm_wmi_call_mxds (err 0)

$ git grep -nw mxm_wmi_call_mxds | grep EXPORT
drivers/platform/x86/mxm-wmi.c:66:EXPORT_SYMBOL_GPL(mxm_wmi_call_mxds);

Ie, mxm-wmi.ko as seen above.

> [  255.336625] nouveau: Unknown symbol mxm_wmi_supported (err 0)

Etc.

> [  255.336644] nouveau: Unknown symbol i2c_bit_algo (err 0)
> [  255.336719] nouveau: Unknown symbol wmi_evaluate_method (err 0)
> [  255.336777] nouveau: Unknown symbol wmi_has_guid (err 0)
> [  255.336904] nouveau: Unknown symbol mxm_wmi_call_mxmx (err 0)
> 
> I don't know in what step i did wrong.

Hope this helps,


Paul Bolle