Hi Ariel,
On Sat, Mar 28, 2026 at 09:07:21PM +0100, Ariel wrote:
> The problem is that the patches mentioned in message #69 aren't available
> (404), so I looked for patches with similar names to see if they were
> available elsewhere (those are the ones I linked to in my previous message).
> I tried the Debian test version to see if they were included and would fix
> the problem. But it doesn't seem so.
The patch to test from message #69 is really just the quirk one, it is
not commited anywhere. What I would be interested to hear if the quirk
fixes your problem, independly of the Debian specific patches we have.
--- a/drivers/iommu/intel/iommu.c 2022-06-03 14:50:52.248268257 +0200
+++ b/drivers/iommu/intel/iommu.c 2022-06-03 14:48:12.695769217 +0200
@@ -6186,6 +6186,9 @@
dmar_map_gfx = 0;
}
+/* Q35 integrated gfx dmar support is totally busted. */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x29b2, quirk_iommu_igfx);
+
/* G4x/GM45 integrated gfx dmar support is totally busted. */
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2a40, quirk_iommu_igfx);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e00, quirk_iommu_igfx);
Regards,
Salvatore
