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Wed, 17 Mar 2021 07:45:03 +0100 (CET) Date: Wed, 17 Mar 2021 07:45:03 +0100 From: Gerd Hoffmann To: Vitaly Chipounov Subject: Re: [PATCH] hw/display/virtio-vga: made vga memory size configurable Message-ID: <20210317064503.wj7zgpvztnps6jck@sirius.home.kraxel.org> References: <20210314122314.3201195-1-vitaly@cyberhaven.com> <20210315072150.rst46y4l23box7jq@sirius.home.kraxel.org> <20210315152438.crifvkfhvmmxnxut@sirius.home.kraxel.org> MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=63.128.21.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.25, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Tue, Mar 16, 2021 at 08:51:21PM +0100, Vitaly Chipounov wrote: > On Mon, Mar 15, 2021 at 4:24 PM Gerd Hoffmann wrote: > > > > On Mon, Mar 15, 2021 at 12:29:16PM +0100, Vitaly Chipounov wrote: > > > On Mon, Mar 15, 2021 at 8:21 AM Gerd Hoffmann wrote: > > > > > > > > If your guest has no virtio driver use stdvga instead of running > > > > virtio-vga permanently in vga compatibility mode. > > > > > > I tried -device VGA,vgamem_mb=32. I did not see any resolution above > > > 1080p on a Windows 10 guest. > > > > Try "-device VGA,vgamem_mb=32,edid=off". Windows seems to not like our > > edid block for some reason. > > > > This worked, thanks for the tip. Regarding the patch, I can resubmit > it with an amended commit message if people think it's still better to > have a configurable memory size here. Given that the vram is used for vga compatibility only and not used any more once the virtio-gpu driver initialized the device I don't think this should be configurable. take care, Gerd