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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