[oi-dev] Intel grafix do not work with new drm module

[Stephan Althaus]

On 6/14/24 13:41, Carsten Grzemba via oi-dev wrote:
> After updating to the latest drm and libdrm my Xorg uses only the vesa 
> driver in the relolution 1024x768. The older installation uses the 
> resolution 1366x768 and dtrace shows that i915 module is used.
> The dtrace script for check with the new drm:
>
> dtrace -n 'fbt:i915::entry {@num[probefunc] = count();} fbt:drm::entry 
> {@num[probefunc] = count();}'
> drm_sun_ioctl 25259
>   idr_find 25259
>   idr_find_used_id 25259
>   idr_compare 50518
>
> If I dtrace the new drm and i915 I see no calls in the i915 module, 
> instead mostly only drm_sun_ioctl:
>
> fbt:drm:drm_sun_ioctl:entry
> {
>         self->rvalp = (int*) arg4;
>         printf("cmd=%x mode=%x", arg1, arg2);
> }
> fbt:drm:drm_sun_ioctl:return
> {
>         printf("ret=%x rval=%x", arg1, *self->rvalp);
> }
>
>
>   2  48751              drm_sun_ioctl:entry cmd=5605 mode=fffffe000f919490
>   2  48752             drm_sun_ioctl:return ret=0 rval=a9
>
> Xorg is working there only with the vesa driver in the 1024x768 
> resolution. Try to force resolution with xorg.config.file do not work.
>
> Any hints what is going wrong here?
> -- 
> Carsten Grzemba
>
>
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Hello!

Maybe i am asking too high-level, but does the module i915 get loaded?

i would then re-check /etc/driver-aliases fpr your pci vendor:device id 
found with prtconf -v ...

?

Regards,

Stephan