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From: Alexey.Brodkin@synopsys.com (Alexey Brodkin)
To: linux-snps-arc@lists.infradead.org
Subject: UDL's fbdev doesn't work for user-space apps
Date: Tue, 12 Dec 2017 19:48:05 +0000	[thread overview]
Message-ID: <1513108084.4945.27.camel@synopsys.com> (raw)
In-Reply-To: <20171209172022.GC19862@localhost>

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

WARNING: multiple messages have this Message-ID (diff)
From: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
To: "pavel@ucw.cz" <pavel@ucw.cz>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"daniel.vetter@ffwll.ch" <daniel.vetter@ffwll.ch>,
	"hshi@chromium.org" <hshi@chromium.org>,
	"linux-snps-arc@lists.infradead.org"
	<linux-snps-arc@lists.infradead.org>,
	"tutankhamen@chromium.org" <tutankhamen@chromium.org>,
	"Jose.Abreu@synopsys.com" <Jose.Abreu@synopsys.com>,
	"airlied@redhat.com" <airlied@redhat.com>,
	"dri-devel@lists.freedesktop.org"
	<dri-devel@lists.freedesktop.org>,
	"airlied@gmail.com" <airlied@gmail.com>
Subject: Re: UDL's fbdev doesn't work for user-space apps
Date: Tue, 12 Dec 2017 19:48:05 +0000	[thread overview]
Message-ID: <1513108084.4945.27.camel@synopsys.com> (raw)
In-Reply-To: <20171209172022.GC19862@localhost>

Hi Pavel,

On Sat, 2017-12-09 at 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

  reply	other threads:[~2017-12-12 19:48 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-04 11:32 UDL's fbdev doesn't work for user-space apps Alexey Brodkin
2017-12-04 11:32 ` Alexey Brodkin
2017-12-04 11:50 ` Jose Abreu
2017-12-04 11:50   ` Jose Abreu
2017-12-04 11:50   ` Jose Abreu
2017-12-04 13:16   ` xf86-video-armada via UDL [was: Re: UDL's fbdev doesn't work for user-space apps] Alexey Brodkin
2017-12-04 13:16     ` Alexey Brodkin
2017-12-04 14:02     ` Jose Abreu
2017-12-04 14:02       ` Jose Abreu
2017-12-04 14:02       ` Jose Abreu
2017-12-04 14:53       ` Alexey Brodkin
2017-12-04 14:53         ` Alexey Brodkin
2017-12-04 15:55         ` Jose Abreu
2017-12-04 15:55           ` Jose Abreu
2017-12-04 15:55           ` Jose Abreu
2017-12-04 16:00           ` Alexey Brodkin
2017-12-04 16:00             ` Alexey Brodkin
2017-12-04 17:24             ` Jose Abreu
2017-12-04 17:24               ` Jose Abreu
2017-12-04 17:29               ` Alexey Brodkin
2017-12-04 17:29                 ` Alexey Brodkin
2017-12-05 10:39                 ` Jose Abreu
2017-12-05 10:39                   ` Jose Abreu
2017-12-05 10:39                   ` Jose Abreu
2017-12-05 11:53                   ` Alexey Brodkin
2017-12-05 11:53                     ` Alexey Brodkin
2017-12-05 11:53                     ` Alexey Brodkin
2017-12-05 12:26                     ` Jose Abreu
2017-12-05 12:26                       ` Jose Abreu
2017-12-05 12:26                       ` Jose Abreu
2017-12-05 14:47                       ` Alexey Brodkin
2017-12-05 14:47                         ` Alexey Brodkin
2017-12-04 17:52       ` Emil Velikov
2017-12-04 17:52         ` Emil Velikov
2017-12-04 17:52         ` Emil Velikov
2017-12-09 17:20   ` UDL's fbdev doesn't work for user-space apps Pavel Machek
2017-12-09 17:20     ` Pavel Machek
2017-12-09 17:20     ` Pavel Machek
2017-12-12 19:48     ` Alexey Brodkin [this message]
2017-12-12 19:48       ` Alexey Brodkin
2017-12-12 21:12       ` Pavel Machek
2017-12-12 21:12         ` Pavel Machek
2017-12-12 21:12         ` Pavel Machek
2017-12-12 21:58 ` Noralf Trønnes
2017-12-12 21:58   ` Noralf Trønnes
2017-12-12 21:58   ` Noralf Trønnes
2017-12-13 21:53   ` Alexey Brodkin
2017-12-13 21:53     ` Alexey Brodkin

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