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Re: Graphical glitches (not refreshing?) with Linux's xe driver + Xen 4.19
- To: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
- From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Date: Thu, 12 Feb 2026 17:16:45 +0100
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- Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, intel-xe@xxxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 12 Feb 2026 16:16:53 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Thu, Feb 12, 2026 at 04:32:56PM +0100, Marek Marczykowski-Górecki wrote:
> On Thu, Feb 12, 2026 at 04:11:50PM +0100, Roger Pau Monné wrote:
> > On Tue, Feb 10, 2026 at 07:06:20PM +0100, Marek Marczykowski-Górecki wrote:
> > > Hi,
> > >
> > > Recently I started testing compatibility with Intel Lunar Lake. This is
> > > the first one that uses "xe" instead of "i915" Linux driver for iGPU.
> > > I test it with Qubes OS 4.3, which uses Xen 4.19.4 and PV dom0 running
> > > Linux 6.17.9 in this test.
> >
> > Not sure it's going to help a lot, but does using a PVH dom0 make any
> > difference?
>
> Yes, it makes a difference. I end up with black screen as soon as dom0
> starts... And due to unrelated bug (in xhci console code?), I don't have
> kernel messages :/
Hm, that's ... very helpful. We should fix the xhci stuff so we know
what's going on there. Is the xhci bug also PVH only, or PV is
equally affected?
Thanks, Roger.
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