From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexey.Brodkin@synopsys.com (Alexey Brodkin) Date: Tue, 12 Dec 2017 19:48:05 +0000 Subject: UDL's fbdev doesn't work for user-space apps In-Reply-To: <20171209172022.GC19862@localhost> References: <1512387175.4977.24.camel@synopsys.com> <86238def-82be-2ad1-63d0-b9a8dbf83db6@synopsys.com> <20171209172022.GC19862@localhost> List-ID: Message-ID: <1513108084.4945.27.camel@synopsys.com> To: linux-snps-arc@lists.infradead.org Hi Pavel, On Sat, 2017-12-09@18:20 +0100, Pavel Machek wrote: > On Mon 2017-12-04 11:50:40, Jose Abreu wrote: > > > > Hi Alexey, > > > > On 04-12-2017 11:32, Alexey Brodkin wrote: > > > > > > My first [probably incorrect] assumption is Xserver requires fbdev (/dev/fbX) > > > and it cannot use DRI video card natively. Is that correct? > > > > > > > > > > Xserver can use DRI directly, you need to enable modesetting > > driver in Xorg config or use the designated driver for your card > > (if there is any). > > Still, dev/fb1 should work. Agree, but it doesn't :) Even on completely different architectures (ARC and ARM). > Can be tested using dd, even :-) Most probably so but not in case of UDL as of today :( I mean as long as it does't work dd etc make no sense. -Alexey From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexey Brodkin Subject: Re: UDL's fbdev doesn't work for user-space apps Date: Tue, 12 Dec 2017 19:48:05 +0000 Message-ID: <1513108084.4945.27.camel@synopsys.com> References: <1512387175.4977.24.camel@synopsys.com> <86238def-82be-2ad1-63d0-b9a8dbf83db6@synopsys.com> <20171209172022.GC19862@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20171209172022.GC19862@localhost> Content-Language: en-US Content-ID: <78143454A109DA448A80FA3259AFA7B2@internal.synopsys.com> Sender: linux-kernel-owner@vger.kernel.org To: "pavel@ucw.cz" Cc: "linux-kernel@vger.kernel.org" , "daniel.vetter@ffwll.ch" , "hshi@chromium.org" , "linux-snps-arc@lists.infradead.org" , "tutankhamen@chromium.org" , "Jose.Abreu@synopsys.com" , "airlied@redhat.com" , "dri-devel@lists.freedesktop.org" , "airlied@gmail.com" List-Id: dri-devel@lists.freedesktop.org SGkgUGF2ZWwsDQoNCk9uIFNhdCwgMjAxNy0xMi0wOSBhdCAxODoyMCArMDEwMCwgUGF2ZWwgTWFj aGVrIHdyb3RlOg0KPiBPbiBNb24gMjAxNy0xMi0wNCAxMTo1MDo0MCwgSm9zZSBBYnJldSB3cm90 ZToNCj4gPiANCj4gPiBIaSBBbGV4ZXksDQo+ID4gDQo+ID4gT24gMDQtMTItMjAxNyAxMTozMiwg QWxleGV5IEJyb2RraW4gd3JvdGU6DQo+ID4gPiANCj4gPiA+IE15IGZpcnN0IFtwcm9iYWJseSBp bmNvcnJlY3RdIGFzc3VtcHRpb24gaXMgWHNlcnZlciByZXF1aXJlcyBmYmRldiAoL2Rldi9mYlgp DQo+ID4gPiBhbmQgaXQgY2Fubm90IHVzZSBEUkkgdmlkZW8gY2FyZCBuYXRpdmVseS4gSXMgdGhh dCBjb3JyZWN0Pw0KPiA+ID4gDQo+ID4gPiANCj4gPiANCj4gPiBYc2VydmVyIGNhbiB1c2UgRFJJ IGRpcmVjdGx5LCB5b3UgbmVlZCB0byBlbmFibGUgbW9kZXNldHRpbmcNCj4gPiBkcml2ZXIgaW4g WG9yZyBjb25maWcgb3IgdXNlIHRoZSBkZXNpZ25hdGVkIGRyaXZlciBmb3IgeW91ciBjYXJkDQo+ ID4gKGlmIHRoZXJlIGlzIGFueSkuDQo+IA0KPiBTdGlsbCwgZGV2L2ZiMSBzaG91bGQgd29yay4N Cg0KQWdyZWUsIGJ1dCBpdCBkb2Vzbid0IDopDQpFdmVuIG9uIGNvbXBsZXRlbHkgZGlmZmVyZW50 IGFyY2hpdGVjdHVyZXMgKEFSQyBhbmQgQVJNKS4NCg0KPiBDYW4gYmUgdGVzdGVkIHVzaW5nIGRk LCBldmVuIDotKQ0KDQpNb3N0IHByb2JhYmx5IHNvIGJ1dCBub3QgaW4gY2FzZSBvZiBVREwgYXMg b2YgdG9kYXkgOigNCkkgbWVhbiBhcyBsb25nIGFzIGl0IGRvZXMndCB3b3JrIGRkIGV0YyBtYWtl IG5vIHNlbnNlLg0KDQotQWxleGV5DQo=