On Sun, 2013-02-24 at 17:13 +0100, Pierre AUSSAGUEL wrote: > Le 24/02/2013 08:08, Ben Hutchings a écrit : [...] > >> If we can't come up with a workaround, this should be mentioned in the > >> release notes to prevent a regression on upgrade. Please feel free to > >> remind me in that case so I can come up with some wording (though I > >> also wouldn't mind if someone else does). > > > > "Graphics rendering may be very slow on Intel 'Ironlake M' GPUs (PCI ID > > 8086:0046) when an IOMMU (VT-d) is enabled. The IOMMU functionality can > > be disabled for the GPU by adding the kernel parameter > > 'intel_iommu=igfx_off'." > > > > Do you want that I test with intel_iommu=igfx_off in 3.7, or even in 3.2 ? > Do you want that I test too intel_iommu=off in 3.2 ? > > For now, the system works well with 3.7 but that would be better to use > a stable kernel for sure ! Please test intel_iommu=igfx_off in both 3.7 and the 3.2+drm kernel linked from <http://bugs.debian.org/687442#131>. (The next upload to unstable will include those drm changes.) Ben. -- Ben Hutchings Absolutum obsoletum. (If it works, it's out of date.) - Stafford Beer
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