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Thu, 12 Feb 2026 20:23:07 -0500 (EST) Date: Fri, 13 Feb 2026 02:23:06 +0100 From: Marek =?utf-8?Q?Marczykowski-G=C3=B3recki?= To: Roger Pau =?utf-8?B?TW9ubsOp?= Cc: xen-devel , intel-xe@lists.freedesktop.org Subject: Re: Graphical glitches (not refreshing?) with Linux's xe driver + Xen 4.19 Message-ID: References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="MJFPgzPlR2IWv8LA" Content-Disposition: inline In-Reply-To: X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" --MJFPgzPlR2IWv8LA Content-Type: text/plain; protected-headers=v1; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Date: Fri, 13 Feb 2026 02:23:06 +0100 From: Marek =?utf-8?Q?Marczykowski-G=C3=B3recki?= To: Roger Pau =?utf-8?B?TW9ubsOp?= Cc: xen-devel , intel-xe@lists.freedesktop.org Subject: Re: Graphical glitches (not refreshing?) with Linux's xe driver + Xen 4.19 On Thu, Feb 12, 2026 at 04:11:50PM +0100, Roger Pau Monn=C3=A9 wrote: > On Tue, Feb 10, 2026 at 07:06:20PM +0100, Marek Marczykowski-G=C3=B3recki= wrote: > > Hi, > >=20 > > 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. >=20 > Not sure it's going to help a lot, but does using a PVH dom0 make any > difference? Ok, now with the correct Xen version, it's better with PVH dom0. At least on the login screen and few applications (from both dom0 and domU) I don't see the glitches anymore. I can't do a full test, because PCI passthrough doesn't seem to work with PVH dom0 on Xen 4.19 - and I need it to start most VMs. So, if the above test is representative, it's only about PV dom0. --=20 Best Regards, Marek Marczykowski-G=C3=B3recki Invisible Things Lab --MJFPgzPlR2IWv8LA Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEhrpukzGPukRmQqkK24/THMrX1ywFAmmOfPoACgkQ24/THMrX 1yx9uwf/XS1nu9msraXWwrAMCdrtTwvbrC3EzRQbNtvAkRdYBmKEkWORstNdMyjM ULC9BQ/a2vlknFIfmG0/PQc89oB3DZC2/TZQZmLM1uAq/bBiRPII3/a7pPB4NFm0 28CrVQCkckQ5Qo+yykB5KJk7cf8xeujC6eshJqSVHAPM3fJBclRJVAmHhe1QAjs5 1BFyUKVWkgZoUmuomJlg3VF3oJyyuBYsKmDyLreYrdJMH4pmKhOCJjTQ9Fe3zwM6 NkyIrCleg4BU2HBUy9Fk0RsD/MhD9F00br4ABOeXAUU+6Xfgs8Ape/RB6OYwonLq +k+WMHfhYbPTGaWvgQZeEULXTVfEDw== =ak9C -----END PGP SIGNATURE----- --MJFPgzPlR2IWv8LA--