Re: Xfbdev fails with no screens found
On Apr 13, 2011 10:29 PM, Dushara Jayasinghe dushara.jayasin...@hydrix.com wrote: Hi Thanks for the reply. Somehow I stuffed up the post with all the relevant info. I've pasted it here again: --- 8 DISPLAY wasn't the issue. To cut a long story short... I needed to update some stuff on buildroot. However, it's still not working properly. I had to add the attached patch to get it to work with the frame buffer device I'm using. Xfbdev runs fine now but when I execute xlogo, nothing is displayed on the screen. The part of the screen gets 'cleared' so I know that it writes something to /dev/fb0. The output of fbset -i: # fbset -i mode 240x128-158 # D: 5.000 MHz, H: 20.325 kHz, V: 157.560 Hz geometry 240 128 240 128 1 timings 20 3 1 0 0 2 1 rgba 0/0,0/0,0/0,0/0 endmode Frame buffer device information: Name : DISP0 BG Address : 0x906b8000 Size : 4096 Type : PACKED PIXELS Visual : MONO01 XPanStep : 1 YPanStep : 1 YWrapStep : 0 LineLength : 32 Accelerator : No # --- 8 I'm using Xfbdev because, this is for an embedded product and I want to keep things as small as possible. The framebuffer driver I'm using is for a monochrome LCD panel running on an iMX.25 based system (I tweaked the driver supplied by Freescale to suite our needs. Thanks. Dushara P.S. What is preferred on this ML top/bottom posts? On 14/04/2011 12:03 PM, zt.t...@gmail.com wrote: Hi. Could you explain in more detail what you are trying to do, include the output of fbset on your hardware and what framebuffer driver you are using? Xfbdev is not a nested server, don't see how setting DISPLAY would help. If you can, please strace Xfbdev and include that as well. I assume an IOCTL is failing though I don't see any detailed logs. Xfbdev is based on the kdrive X server, it doesn't have the same configuration or logging as Xorg servers do. Why do you need to use Xfbdev, does Xorg (fbdev driver) not work? Thanks, Timothy Meade tmzt on #xorg and #xorg-users On Apr 13, 2011 7:50 PM, Dushara Jayasinghe dushara.jayasin...@hydrix.com wrote: Sorry reposting this coz I stuffed up the subject... On 13/04/2011 4:34 PM, Dushara Jayasinghe wrote: On 12/04/2011 11:06 AM, xorg-devel-requ...@lists.x.org wrote: Date: Mon, 11 Apr 2011 21:55:27 +0200 From: Abdoulaye Walsimou GAYEa...@embtoolkit.org Subject: Re: Xfbdev fails with no screens found To: xorg-devel@lists.x.org Message-ID:4da35caf.1090...@embtoolkit.org Content-Type: text/plain; charset=iso-8859-1; Format=flowed On 04/11/2011 10:01 AM, Dushara Jayasinghe wrote: Hi all, I'm trying to use Xfbdev on an embedded linux device with a monochrom LCD display. However, the command returns the following error: Fatal server error: no screens found Using xserver_xorg-server-1.7.5 with kdrive/fbdev Hello, does the following command line, before starting Xfbdev, fixes the issue: export DISPLAY=:0 ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel -- Dushara Jayasinghe | Senior Software Engineer dushara.jayasin...@hydrix.com | +61 3 8573 5221 Hydrix: Our Expertise – Your Competitive Advantage www.hydrix.com | fax +61 3 9572 2686 | phone +61 3 8573 5299 ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel -- Dushara Jayasinghe | Senior Software Engineer dushara.jayasin...@hydrix.com | +61 3 8573 5221 Hydrix: Our Expertise – Your Competitive Advantage www.hydrix.com | fax +61 3 9572 2686 | phone +61 3 8573 5299 I believe bottom, I couldn't figure out which of the quoted messages to reply to. I don't believe the visual is getting setup right, I'm pretty sure this going to need changes to the server though Keith or someone else on the list might know for sure. You might do better with overlay support, or something that supports a single bit depth. I also wonder if the rgba mask has anything to do with it. I haven't looked at this code recently, but I'm pretty sure it's using MI/FB to create a visual from the FBIO fixed structure. You can try -screen parameter if you can figure out the right one, but it will probably still try to set the config back to the fbdev and fail. If somebody knows how to create a monochrome visual/root pixmap you could modify the server to do that, or properly support the visual flags in your fbset output. -- Timothy Meade tmzt on #xorg-devel on freenode ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org
Re: Xfbdev fails with no screens found
On 14/04/2011 4:28 PM, zt.t...@gmail.com wrote: On Apr 13, 2011 10:29 PM, Dushara Jayasinghe dushara.jayasin...@hydrix.com mailto:dushara.jayasin...@hydrix.com wrote: Hi Thanks for the reply. Somehow I stuffed up the post with all the relevant info. I've pasted it here again: --- 8 DISPLAY wasn't the issue. To cut a long story short... I needed to update some stuff on buildroot. However, it's still not working properly. I had to add the attached patch to get it to work with the frame buffer device I'm using. Xfbdev runs fine now but when I execute xlogo, nothing is displayed on the screen. The part of the screen gets 'cleared' so I know that it writes something to /dev/fb0. The output of fbset -i: # fbset -i mode 240x128-158 # D: 5.000 MHz, H: 20.325 kHz, V: 157.560 Hz geometry 240 128 240 128 1 timings 20 3 1 0 0 2 1 rgba 0/0,0/0,0/0,0/0 endmode Frame buffer device information: Name : DISP0 BG Address : 0x906b8000 Size : 4096 Type : PACKED PIXELS Visual : MONO01 XPanStep : 1 YPanStep : 1 YWrapStep : 0 LineLength : 32 Accelerator : No # --- 8 I'm using Xfbdev because, this is for an embedded product and I want to keep things as small as possible. The framebuffer driver I'm using is for a monochrome LCD panel running on an iMX.25 based system (I tweaked the driver supplied by Freescale to suite our needs. Thanks. Dushara P.S. What is preferred on this ML top/bottom posts? On 14/04/2011 12:03 PM, zt.t...@gmail.com mailto:zt.t...@gmail.com wrote: Hi. Could you explain in more detail what you are trying to do, include the output of fbset on your hardware and what framebuffer driver you are using? Xfbdev is not a nested server, don't see how setting DISPLAY would help. If you can, please strace Xfbdev and include that as well. I assume an IOCTL is failing though I don't see any detailed logs. Xfbdev is based on the kdrive X server, it doesn't have the same configuration or logging as Xorg servers do. Why do you need to use Xfbdev, does Xorg (fbdev driver) not work? Thanks, Timothy Meade tmzt on #xorg and #xorg-users On Apr 13, 2011 7:50 PM, Dushara Jayasinghe dushara.jayasin...@hydrix.com mailto:dushara.jayasin...@hydrix.com wrote: Sorry reposting this coz I stuffed up the subject... On 13/04/2011 4:34 PM, Dushara Jayasinghe wrote: On 12/04/2011 11:06 AM, xorg-devel-requ...@lists.x.org mailto:xorg-devel-requ...@lists.x.org wrote: Date: Mon, 11 Apr 2011 21:55:27 +0200 From: Abdoulaye Walsimou GAYEa...@embtoolkit.org mailto:a...@embtoolkit.org Subject: Re: Xfbdev fails with no screens found To: xorg-devel@lists.x.org mailto:xorg-devel@lists.x.org Message-ID:4da35caf.1090...@embtoolkit.org mailto:4da35caf.1090...@embtoolkit.org Content-Type: text/plain; charset=iso-8859-1; Format=flowed On 04/11/2011 10:01 AM, Dushara Jayasinghe wrote: Hi all, I'm trying to use Xfbdev on an embedded linux device with a monochrom LCD display. However, the command returns the following error: Fatal server error: no screens found Using xserver_xorg-server-1.7.5 with kdrive/fbdev Hello, does the following command line, before starting Xfbdev, fixes the issue: export DISPLAY=:0 ___ xorg-devel@lists.x.org mailto:xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel -- Dushara Jayasinghe | Senior Software Engineer dushara.jayasin...@hydrix.com mailto:dushara.jayasin...@hydrix.com | +61 3 8573 5221 Hydrix: Our Expertise – Your Competitive Advantage www.hydrix.com http://www.hydrix.com | fax +61 3 9572 2686 | phone +61 3 8573 5299 ___ xorg-devel@lists.x.org mailto:xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel -- Dushara Jayasinghe | Senior Software Engineer dushara.jayasin...@hydrix.com mailto:dushara.jayasin...@hydrix.com | +61 3 8573 5221 Hydrix: Our Expertise – Your Competitive Advantage www.hydrix.com http://www.hydrix.com | fax +61 3 9572 2686 | phone +61 3 8573 5299 I believe bottom, I couldn't figure out which of the quoted messages to reply to. I don't believe the visual is getting setup right, I'm pretty sure this going to need changes to the server though Keith or someone else on the list might know for sure. You might do better with overlay support, or something that supports a single bit depth. I also wonder if the rgba mask has anything to do with it. I haven't looked at this code recently, but I'm pretty sure it's using MI/FB
Re: Xfbdev fails with no screens found
Sorry reposting this coz I stuffed up the subject... On 13/04/2011 4:34 PM, Dushara Jayasinghe wrote: On 12/04/2011 11:06 AM, xorg-devel-requ...@lists.x.org wrote: Date: Mon, 11 Apr 2011 21:55:27 +0200 From: Abdoulaye Walsimou GAYEa...@embtoolkit.org Subject: Re: Xfbdev fails with no screens found To: xorg-devel@lists.x.org Message-ID:4da35caf.1090...@embtoolkit.org Content-Type: text/plain; charset=iso-8859-1; Format=flowed On 04/11/2011 10:01 AM, Dushara Jayasinghe wrote: Hi all, I'm trying to use Xfbdev on an embedded linux device with a monochrom LCD display. However, the command returns the following error: Fatal server error: no screens found Using xserver_xorg-server-1.7.5 with kdrive/fbdev Hello, does the following command line, before starting Xfbdev, fixes the issue: export DISPLAY=:0 ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel -- Dushara Jayasinghe | Senior Software Engineer dushara.jayasin...@hydrix.com | +61 3 8573 5221 Hydrix: /Our Expertise – Your Competitive Advantage/ www.hydrix.com | fax +61 3 9572 2686 | phone +61 3 8573 5299 ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
Re: Xfbdev fails with no screens found
Hi. Could you explain in more detail what you are trying to do, include the output of fbset on your hardware and what framebuffer driver you are using? Xfbdev is not a nested server, don't see how setting DISPLAY would help. If you can, please strace Xfbdev and include that as well. I assume an IOCTL is failing though I don't see any detailed logs. Xfbdev is based on the kdrive X server, it doesn't have the same configuration or logging as Xorg servers do. Why do you need to use Xfbdev, does Xorg (fbdev driver) not work? Thanks, Timothy Meade tmzt on #xorg and #xorg-users On Apr 13, 2011 7:50 PM, Dushara Jayasinghe dushara.jayasin...@hydrix.com wrote: Sorry reposting this coz I stuffed up the subject... On 13/04/2011 4:34 PM, Dushara Jayasinghe wrote: On 12/04/2011 11:06 AM, xorg-devel-requ...@lists.x.org wrote: Date: Mon, 11 Apr 2011 21:55:27 +0200 From: Abdoulaye Walsimou GAYEa...@embtoolkit.org Subject: Re: Xfbdev fails with no screens found To: xorg-devel@lists.x.org Message-ID:4da35caf.1090...@embtoolkit.org Content-Type: text/plain; charset=iso-8859-1; Format=flowed On 04/11/2011 10:01 AM, Dushara Jayasinghe wrote: Hi all, I'm trying to use Xfbdev on an embedded linux device with a monochrom LCD display. However, the command returns the following error: Fatal server error: no screens found Using xserver_xorg-server-1.7.5 with kdrive/fbdev Hello, does the following command line, before starting Xfbdev, fixes the issue: export DISPLAY=:0 ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel -- Dushara Jayasinghe | Senior Software Engineer dushara.jayasin...@hydrix.com | +61 3 8573 5221 Hydrix: Our Expertise – Your Competitive Advantage www.hydrix.com | fax +61 3 9572 2686 | phone +61 3 8573 5299 ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
Re: Xfbdev fails with no screens found
Hi Thanks for the reply.
Somehow I stuffed up the post with all the relevant info. I've pasted it
here again:
--- 8
DISPLAY wasn't the issue. To cut a long story short... I needed to
update some stuff on buildroot.
However, it's still not working properly. I had to add the attached
patch to get it to work with the frame buffer device I'm using. Xfbdev
runs fine now but when I execute xlogo, nothing is displayed on the
screen. The part of the screen gets 'cleared' so I know that it writes
/something/ to /dev/fb0.
The output of fbset -i:
# fbset -i
mode 240x128-158
# D: 5.000 MHz, H: 20.325 kHz, V: 157.560 Hz
geometry 240 128 240 128 1
timings 20 3 1 0 0 2 1
rgba 0/0,0/0,0/0,0/0
endmode
Frame buffer device information:
Name : DISP0 BG
Address : 0x906b8000
Size : 4096
Type : PACKED PIXELS
Visual : MONO01
XPanStep : 1
YPanStep : 1
YWrapStep : 0
LineLength : 32
Accelerator : No
#
--- 8
I'm using Xfbdev because, this is for an embedded product and I want to
keep things as small as possible.
The framebuffer driver I'm using is for a monochrome LCD panel running
on an iMX.25 based system (I tweaked the driver supplied by Freescale to
suite our needs.
Thanks.
Dushara
P.S. What is preferred on this ML top/bottom posts?
On 14/04/2011 12:03 PM, zt.t...@gmail.com wrote:
Hi.
Could you explain in more detail what you are trying to do, include
the output of fbset on your hardware and what framebuffer driver you
are using?
Xfbdev is not a nested server, don't see how setting DISPLAY would help.
If you can, please strace Xfbdev and include that as well. I assume an
IOCTL is failing though I don't see any detailed logs. Xfbdev is based
on the kdrive X server, it doesn't have the same configuration or
logging as Xorg servers do. Why do you need to use Xfbdev, does Xorg
(fbdev driver) not work?
Thanks,
Timothy Meade
tmzt on #xorg and #xorg-users
On Apr 13, 2011 7:50 PM, Dushara Jayasinghe
dushara.jayasin...@hydrix.com mailto:dushara.jayasin...@hydrix.com
wrote:
Sorry reposting this coz I stuffed up the subject...
On 13/04/2011 4:34 PM, Dushara Jayasinghe wrote:
On 12/04/2011 11:06 AM, xorg-devel-requ...@lists.x.org
mailto:xorg-devel-requ...@lists.x.org wrote:
Date: Mon, 11 Apr 2011 21:55:27 +0200
From: Abdoulaye Walsimou GAYEa...@embtoolkit.org
mailto:a...@embtoolkit.org
Subject: Re: Xfbdev fails with no screens found
To: xorg-devel@lists.x.org mailto:xorg-devel@lists.x.org
Message-ID:4da35caf.1090...@embtoolkit.org
mailto:4da35caf.1090...@embtoolkit.org
Content-Type: text/plain; charset=iso-8859-1; Format=flowed
On 04/11/2011 10:01 AM, Dushara Jayasinghe wrote:
Hi all,
I'm trying to use Xfbdev on an embedded linux device with a
monochrom LCD display. However, the command returns the following error:
Fatal server error:
no screens found
Using xserver_xorg-server-1.7.5
with kdrive/fbdev
Hello,
does the following command line, before starting Xfbdev, fixes the
issue:
export DISPLAY=:0
___
xorg-devel@lists.x.org mailto:xorg-devel@lists.x.org: X.Org
development
Archives: http://lists.x.org/archives/xorg-devel
Info: http://lists.x.org/mailman/listinfo/xorg-devel
--
Dushara Jayasinghe | Senior Software Engineer
dushara.jayasin...@hydrix.com mailto:dushara.jayasin...@hydrix.com
| +61 3 8573 5221
Hydrix: Our Expertise – Your Competitive Advantage
www.hydrix.com http://www.hydrix.com | fax +61 3 9572 2686 | phone
+61 3 8573 5299
___
xorg-devel@lists.x.org mailto:xorg-devel@lists.x.org: X.Org
development
Archives: http://lists.x.org/archives/xorg-devel
Info: http://lists.x.org/mailman/listinfo/xorg-devel
--
Dushara Jayasinghe | Senior Software Engineer
dushara.jayasin...@hydrix.com | +61 3 8573 5221
Hydrix: /Our Expertise – Your Competitive Advantage/
www.hydrix.com | fax +61 3 9572 2686 | phone +61 3 8573 5299
diff -Naur xorg-server-1.7.5-old/hw/kdrive/fbdev/fbdev.c
xorg-server-1.7.5-new/hw/kdrive/fbdev/fbdev.c
--- xorg-server-1.7.5-old/hw/kdrive/fbdev/fbdev.c 2010-02-16
11:24:22.0 +1100
+++ xorg-server-1.7.5-new/hw/kdrive/fbdev/fbdev.c 2011-04-13
16:10:59.517011484 +1000
@@ -238,6 +238,10 @@
screen-fb[0].greenMask = 0x00;
screen-fb[0].redMask = 0x00;
break;
+case FB_VISUAL_MONO01:
+case FB_VISUAL_MONO10:
+ screen-fb[0].visuals = (1 StaticGray);
+ break;
case FB_VISUAL_STATIC_PSEUDOCOLOR:
if (gray)
{
@@ -287,6 +291,8 @@
screen-fb[0].depth = depth;
screen-fb[0].bitsPerPixel = priv-var.bits_per_pixel;
+fprintf(stderr, %d:depth=%d, bpp=%d\n, __LINE__, screen-fb[0].depth,
screen-fb[0].bitsPerPixel);
+
scrpriv-randr = screen-randr;
return fbdevMapFramebuffer (screen
Xfbdev fails with no screens found
Hi all, I'm trying to use Xfbdev on an embedded linux device with a monochrom LCD display. However, the command returns the following error: Fatal server error: no screens found I have the device nodes for the framebuffer device (/dev/fb0). On closer inspection of the code, it seems this error is generated because screenInfo.numScreens has not been initialised. But I can't work out where this parameter gets set. Any ideas? Using xserver_xorg-server-1.7.5 with kdrive/fbdev Thanks Dushara -- Dushara Jayasinghe | Senior Software Engineer dushara.jayasin...@hydrix.com | +61 3 8573 5221 Hydrix: /Our Expertise -- Your Competitive Advantage/ www.hydrix.com | fax +61 3 9572 2686 | phone +61 3 8573 5299 ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
Re: Xfbdev fails with no screens found
On 04/11/2011 10:01 AM, Dushara Jayasinghe wrote: Hi all, I'm trying to use Xfbdev on an embedded linux device with a monochrom LCD display. However, the command returns the following error: Fatal server error: no screens found I have the device nodes for the framebuffer device (/dev/fb0). On closer inspection of the code, it seems this error is generated because screenInfo.numScreens has not been initialised. But I can't work out where this parameter gets set. Any ideas? Using xserver_xorg-server-1.7.5 with kdrive/fbdev Hello, does the following command line, before starting Xfbdev, fixes the issue: export DISPLAY=:0 Regards, AWG ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
