On 06/29/2015 at 11:32 AM, Nicolas George wrote:
> Le primidi 11 messidor, an CCXXIII, The Wanderer a écrit :
>
>> Going by the PCI ID you posted earlier (from lspci output), and
>> looking that ID up in the LKDDB, it appears that the kernel module
>> for the graphics component of this chip is i915.ko:
>>
>> https://cateee.net/lkddb/web-lkddb/DRM_I915.html
>>
>> On my system (tracking current testing), I have:
>>
>> $ find /lib/modules/`uname -r` -name i915.ko
>> /lib/modules/3.16.0-4-amd64/kernel/drivers/gpu/drm/i915/i915.ko
>>
>> So: yes, Debian has a driver for this integrated graphics
>> controller.
>
> This is doubly inconclusive.
>
> First, the kernel bundles in the same module support for several
> similar but not identical controllers. In other words, the i915.ko
> file you are observing may very well be too old for this particular
> instance of an i915-style video controller.
>
> To know for sure, see if the alias shown by `modinfo i915` match the
> PCI IDs of the controller.
I'm not familiar with the output format of modinfo, but on my system the
PCI ID is present, albeit in somewhat obfuscated-looking form
('pci:v00008086d00000116' rather than without the zero-padding and with
some separator other than just the single letter).
> Second, the kernel module is not enough of a driver, except for just
> a high resolution text console. A X.org driver is necessary too. You
> did not check for it.
I'll admit that didn't occur to me - but is there really any video
hardware out there which has an open kernel driver and no open X driver?
> If you did in the same way you did for the kernel, you would have
> found a file named intel_drv.so, with the exact same issue as the
> kernel module and no modinfo to query the supported PCI IDs.
>
> Considering that Debian 6 came out in 2011 and the Haswell
> microarchitecture came out in 2013, I would say that the answer to
> the question is very likely no.
I missed noticing the "Debian 6" part of the question; my apologies.
Yes, something that old is not going to have a driver for this, although
current testing probably would.
--
The Wanderer
The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore all
progress depends on the unreasonable man. -- George Bernard Shaw
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