linux-fbdev-users — Generic mailing list for users of frame buffers

Re: [Linux-fbdev-users] screen clearing

[David J. <da...@we...>]

On Thu, Aug 22, 2002 at 12:17:01PM -0700, James Simmons wrote:
> 
> > Switching from one virtual console to another appears
> > to clear the screen before writing the new one.
> >
> > Is there any way to prevent this?
> 
> No.
> 

Well, thanks.  That sounds pretty definite.

But does it have to be?  Comparing sections of text by lining 
them up on adjacent virtual consoles and switching between 
them works so beautifully - a semi-colon instead of a colon 
anywhere on the screen just jumps out at you.  Clearing the 
screen first is not only annoying and tiring for the eyes, 
it also means you have to go through the screen line by line 
(switching to and fro) for the same result.

Are we going to have to sacrifice this facility in the name 
of progress?

David

Re: [Linux-fbdev-users] screen clearing

[James S. <jsi...@in...>]

> Switching from one virtual console to another appears
> to clear the screen before writing the new one.
>
> Is there any way to prevent this?

No.

[Linux-fbdev-users] screen clearing

[David J. <da...@we...>]

Switching from one virtual console to another appears 
to clear the screen before writing the new one.

Is there any way to prevent this?

David

[Linux-fbdev-users] second fb-device

[abcdefghijklmn <pra...@re...>]

hi

i have the frame buffer device enabled and it works fine with a 
single display.
Now i have a dual display card.
but when i start the Xfbdev i could enable only one screen using 
the /dev/fb0
have anyone tried dual head on framebuffer.
can anyone tell me how to enable the second head /dev/fb1

i tried to create a device with minor number 32 same as /dev/fb0 
but it doesn seem to work.

Thanks in advance

Prakash

[Linux-fbdev-users] how to use silicon motion driver for XFBDEV

[Prakash B. <pra...@ya...>]

hi

i want to use the silicon motion lynxEM+ driver for
the Xfbdev server instead of the standard VGA driver.
how could it b done??

Thanks in advance 

Prakash



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Re: [Linux-fbdev-users] Card's view of framebuffer offset into userspace?

[Petr V. <van...@vc...>]

On Sun, Jul 14, 2002 at 04:10:29PM +0300, Ville Syrj=E4l=E4 wrote:
> Is there a way to ge the framebuffer offset to userspace? I hacked
> DirectFB to draw to the crtc2 display but currently I've had to hardcod=
e
> the framebuffer offset. So I need something I can feed to tmy G400.

In what environment? With matroxfb you have special framebuffer which
is displayed by CRTC2 engine. Offset is not explicitly exported, but
if you'll take low 24 bits from fb_start, you'll get offset on
G400/G450/G550 devices.

Accessing CRTC2's memory through primary head's framebuffer is not
supported.
						Best regards,
							Petr Vandrovec
							van...@vc...

[Linux-fbdev-users] Card's view of framebuffer offset into userspace?

[<sy...@sc...>]

Is there a way to ge the framebuffer offset to userspace? I hacked
DirectFB to draw to the crtc2 display but currently I've had to hardcode
the framebuffer offset. So I need something I can feed to tmy G400.

-- 
Ville Syrjälä
sy...@sc...
http://www.sci.fi/~syrjala/

[Linux-fbdev-users] contrast on a fixed frequency monitor

[<tm...@t-...>]

hi list,

i am a newbie to linux-fbdev and got a problem:

i am trying to use the fbdev stuff from 2.4.18 on a ati rage lt (mach 64) chipset to make it sync the textmode on my hitachi hm4419-d fixed frequency monitor. everything runs fine so far, i can load the atyfb module and make fbset switch the video settings to a readable image, buit obviously the contrast and brightness of the image are very high. switching over to the restarted x-server reveals an image that is a bit scrambled in some parts (like being doubled, but not completely messed up) which is also equipped with far too much contrast. turning down the contrast on the monitor makes things a bit better, but it still is very high makeing me fear for my monitor's health :-)

any hint?

thx in advance,

  thorsten
-- 
Thorsten Mika                                mailto:tm...@t-...
Hamm / Germany                                            TM5173-RIPE

[Linux-fbdev-users] Dirty lines on the screen

[Krypton <kry...@in...>]

I'm using EPSON S1D113806 framebuffer on a custom SA1110 SBC.
I can boot my kernel-2.4.9-ac10-rmk2-np1
I see the penguin on the CRT screen.
When the root.jffs2 image is loaded I see on the screen dirty lines
when "Configuring dynamic linker" is called.

During boot when char lines scrolling on the console tty0
the system do something same (dirty lines) on the CRT screen.
I think the output tty is going to the video too.
How to avoid that ?

Do you have a suggestion about where to search
if the framebuffer driver is assuming it can grab
any memory it pleases and the rest of the kernel ?
Does exist some file where there are entry points or function pointers for
the fb ?

Thank you 
-----
krypton8-AT-inwind-DOT-it

Re: [Linux-fbdev-users] GeForce2 MX200 fbdev problem

[James S. <jsi...@tr...>]

Try the UseFBDev option with the X server.

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On Fri, 10 May 2002, Marius Cucu wrote:

>
> I'm using RedHat Linux 7.2 on Kernel 2.4.18 with fbset suport for
> nvidia chips.
> The system doesn't respong when I shut down the X Server which is
> configured to run with the nvidia module driver (from www.nvidia.com).
> The same happens when I use FBDEV X server.
> Everithing works fine when I run without fbdev compiled in kernel.
>            Thanks
>
>
> _______________________________________________________________
>
> Have big pipes? SourceForge.net is looking for download mirrors. We supply
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>

[Linux-fbdev-users] GeForce2 MX200 fbdev problem

[Marius C. <Mar...@xn...>]

I'm using RedHat Linux 7.2 on Kernel 2.4.18 with fbset suport for
nvidia chips.
The system doesn't respong when I shut down the X Server which is
configured to run with the nvidia module driver (from www.nvidia.com).
The same happens when I use FBDEV X server.
Everithing works fine when I run without fbdev compiled in kernel.
           Thanks

[Linux-fbdev-users] Help in setting up framebuffer for X

[Latha <lat...@wi...>]

Section "Files"
#   RgbPath    "/usr/X11R6/lib/X11/rgb"
   FontPath   "unix/:7100"
EndSection

Section "ServerFlags"
EndSection

Section "Keyboard"
   Protocol        "Standard"
   AutoRepeat      500 30
   LeftAlt         Meta
   RightAlt        Meta
   ScrollLock      Compose
   RightCtl        Control
   XkbKeycodes     "xfree86"
   XkbTypes        "default"
   XkbCompat       "default"
   XkbSymbols      "us(pc101)"
   XkbGeometry     "pc"
   XkbRules        "xfree86"
   XkbModel        "pc104"
   XkbLayout       "us"
EndSection

Section "Pointer"
   Protocol        "MouseSystems"
#   Device          "/dev/gpmdata"
    Device          "/dev/psaux"
#   Device          "/dev/ttyS0"
#   Device          "/dev/ttyS1"
   Emulate3Timeout 50
   Resolution      100
   Buttons         3
   Emulate3Buttons
EndSection

Section "Monitor"
   Identifier      "Primary Monitor"
   VendorName      "Unknown"
   ModelName       "Unknown"
   HorizSync       31.5-48.5
   VertRefresh     55-90
EndSection

Section "Device"
   Identifier      "Primary Card"
EndSection

Section "Screen"
   Driver          "fbdev"
   Device          "Primary Card"
   Monitor         "Primary Monitor"
   SubSection "Display"

      Depth        8
#      Depth        16
#      Depth        24
#      Depth        32
      Modes        "default"
   EndSubSection
EndSection

[Linux-fbdev-users] does S3 ViGRE DX/GX work with the vesafb device?

[Iris H. <ir...@te...>]

Hello! all,

My video card is S3 ViRGE  DX/GX.  I compiled the kernel with VESA 
driver according to "Framebuffer Howto", and made change to grub like this:
kernel /vmlinuz root=/dev/hda3 ro vga=ask

After reboot, chose 80x25. In dmesg,
console colour VGA+ 80x25
And cat /proc/fb, nothing there.
/usr/sbin/fbset
open /dev/fb0: no such device


Any help would be highly appreciate!


Iris


 

[Linux-fbdev-users] ATI AIW Radeon w/ atyfb Console not working well

[<sim...@ya...>]

Hello,

I have just compiled kernel 2.4.18 and everything was perfect, apart from
a nasty console which is 80x30 and too far off to the left. I started
hacking around, and downloaded fbset, this gives me access to a nice
console. I copied the ATI fb.modes file, and I do:

$ fbset 800x600-72

This gives me the console I want, I just need to know how to set this as
a kernel parameter instead. I don't like doing this in rc.sysinit because
(1) I loose the Penguin logo, and (2) I'd like it to work automagically
from the kernel boot.

I have played with my grub.conf and tried several parameters using
append, such as:

video=atyfb:800x600-8
video=atyfb:mode:800x600-72
video=atyfb etc etc

yet all have just given me a blank screen; If I login without being able
to see what I type, then startx, I can get the console back by then
quitting X. I have also tried standard vesa syntax vga=791 and such like
but this does not work :(

Does anyone have any hints? I can give additional information on request.

Annexes:
[1] dmesg context:
..snip...
Starting kswapd
Journalled Block Device driver loaded
PCI: Found IRQ 9 for device 00:0b.0
radeonfb: ref_clk=2700, ref_div=60, xclk=16600 from BIOS
Console: switching to colour frame buffer device 80x30
          ^--- I don't seem to be able to get something better here
radeonfb: ATI Radeon QD  SDR SGRAM 32 MB
radeonfb: CRT port CRT monitor connected
[2] sample grub.conf lines
append="video=atyfb:800x600-8" -> doesn't work
append="atyfb:mode:800x600,font:SUN12x22" -> doesn't work, but font
available in kernel. Doesn't work without font declaration either, or if
I use cmode: to set bpp.

TIA,
Simon.

=====
--
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Signature chopped. Yahoo! will add lots more lines every time I post anyway.

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Re: [Linux-fbdev-users] Error: /dev/fb0: No such device

[Gustavo V. <g_v...@ho...>]

James,

As you asked me. I took a lot at the dmesg file and I found:

Console: colour VGA+ 80x25

And when I did the cat /proc/fb, there was nothing to see.

I'm using an old vga ISA card. So I assume that the VESAVGA driver didn't 
support it.
Then I tried with the VGA16-color graphics console driver. The options that 
I selected for re-compiling the kernel were:

- VGA text console
- Video mode selection support
- Support for frame buffer devices
- VGA 16-color graphics console
- Advanced low level driver options
- 2 bpp packed pixels support
- 4 bpp packed pixels support
- 8 bpp packed pixels support
- 16 bpp packed pixels support
- 24 bpp packed pixels support
- 32 bpp packed pixels support

Then when I reboot with that kernel and whites vertical lines appear on the 
screen and yellow points on the top of the screen. It must be the penguin. 
But then the screen doesn't change. Then I log in in dark. I do startx and I 
can take a look at the dmesg file:

vga16fb: inilializing
vga16fb: mapped to 0xc00a0000
fbcon_setup: NO support for fontwidth 8
fbcon_setup: type 4 (aux 0,depth 4) not supported
Console: switching to colour frame buffer device 80x30
fb0: VGA16 VGA frame buffer device

And I do the cat /proc/fb with the following result:

0 VGA16 VGA

The fbset works too:

mode "640x480-59"
   # D: 25.176 MHz, H: 31.469 kHz, V: 59,489 Hz
   geometry 640 480 640 480 4
   timings 39721 48 16 39 8 96 2
   rgba 6/0,6/0,6/0,0/0
endmode
I could not change the mode.

But it's not working properly.
Any suggestion ?

Gustavo


>From: James Simmons <jsi...@tr...>
>To: Gustavo Vilches <g_v...@ho...>
>CC: lin...@li...
>Subject: Re: [Linux-fbdev-users] Error: /dev/fb0: No such device
>Date: Thu, 4 Apr 2002 11:09:57 -0800 (PST)
>
>
>
> > Hello ,
> >
> > I  compiled the kernel with the VESA frame buffer
> > driver and made changes in lilo.conf by adding
> > VGA=ask in addition to other standard enteries.
> >
> > The system booted ok , it asked for which mode I gave
> > 80*43 and everything was working fine. After logging
> > in as root , I gave the command
> >
> > cp /dev/fb0 screen
> >
> > It gave a error
> >
> > /dev/fb0 : No such device
> >
> > The documentation said that you can use /dev/fb0 in
> > the same way as /dev/mem .
> >
> > Am I missing something ?
>
>What does dmesg say. Also can you do a cat /proc/fb.
>
>
>_______________________________________________
>Linux-fbdev-users mailing list
>Lin...@li...
>https://lists.sourceforge.net/lists/listinfo/linux-fbdev-users


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Re: [Linux-fbdev-users] Error: /dev/fb0: No such device

[James S. <jsi...@tr...>]

> Hello ,
> 
> I  compiled the kernel with the VESA frame buffer
> driver and made changes in lilo.conf by adding
> VGA=ask in addition to other standard enteries.
> 
> The system booted ok , it asked for which mode I gave
> 80*43 and everything was working fine. After logging
> in as root , I gave the command
> 
> cp /dev/fb0 screen
> 
> It gave a error
> 
> /dev/fb0 : No such device
> 
> The documentation said that you can use /dev/fb0 in
> the same way as /dev/mem .
> 
> Am I missing something ?

What does dmesg say. Also can you do a cat /proc/fb.

[Linux-fbdev-users] Error: /dev/fb0: No such device

[Gustavo V. <g_v...@ho...>]

Hello ,

I  compiled the kernel with the VESA frame buffer
driver and made changes in lilo.conf by adding
VGA=ask in addition to other standard enteries.

The system booted ok , it asked for which mode I gave
80*43 and everything was working fine. After logging
in as root , I gave the command

cp /dev/fb0 screen

It gave a error

/dev/fb0 : No such device

The documentation said that you can use /dev/fb0 in
the same way as /dev/mem .

Am I missing something ?

Regards,
Peter

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[Linux-fbdev-users] hi

[Harsh A. <har...@ex...>]

Hi,

i want  to call an image on console (but not via using zgv).
what should i do?
please help me.

--
Harsh Ahuja
Exaband (India) Private Limited,
24,Shantiniketan,
East Marredpally,
Secunderabad-26.

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RE: [Linux-fbdev-users] Sony Vaio laptop with i815 video card

[Parson L. (NHQ-AC) <Par...@CS...>]

>> I proceeded with the same command as before. "fbset -g 800 600 800 600 8"
>> but then received "ioctl FBIOPUT_VSCREENINFO: Invalid argument".  I then
>> noticed that I was in 4bpp.  Therefore I tried "fbset -g 800 600 800 600
4"
>> and then this worked.  

>Sounds like you went from the VESA framebuffer to the vga16 framebuffer.
>Can you do a cat /proc/fb and tell us what you see.


Yes I have went to VGA16.  I tried recompiled my kernel and enabled
everything BUT VGA16, but then I had no more FB support.  Also, enabling
everything still gives me VGA16.  I find this very strange that with
Slack7.1 I could obtain more colors then with Slack8.  

Here are a few things that I have copied:

root@laptop:~# dmesg | grep agpgart
Linux agpgart interface v0.99 (c) Jeff Hartmann
agpgart: Maximum main memory to use for agp memory: 93M
agpgart: agpgart: Detected an Intel i815 Chipset.
agpgart: detected 4MB dedicated video ram.
agpgart: AGP aperture is 64M @ 0xf8000000


root@laptop:/proc# cat fb
0 VGA16 VGA


root@laptop:~# fbset -i

mode "832x620-38"
    # D: 25.176 MHz, H: 25.379 kHz, V: 37.935 Hz
    geometry 832 620 832 620 4
    timings 39721 48 16 39 8 96 2
    rgba 6/0,6/0,6/0,0/0
endmode

Frame buffer device information:
    Name        : VGA16 VGA
    Address     : 0xa0000
    Size        : 65536
    Type        : VGA 16 colors in 4 planes
    Visual      : PSEUDOCOLOR
    XPanStep    : 8
    YPanStep    : 1
    YWrapStep   : 0
    LineLength  : 104
    Accelerator : No

Thanks,

Luc P.

Re: [Linux-fbdev-users] Sony Vaio laptop with i815 video card

[James S. <jsi...@tr...>]

> I proceeded with the same command as before. "fbset -g 800 600 800 600 8"
> but then received "ioctl FBIOPUT_VSCREENINFO: Invalid argument".  I then
> noticed that I was in 4bpp.  Therefore I tried "fbset -g 800 600 800 600 4"
> and then this worked.  

Sounds like you went from the VESA framebuffer to the vga16 framebuffer.
Can you do a cat /proc/fb and tell us what you see.

[Linux-fbdev-users] Sony Vaio laptop with i815 video card

[Parson L. (NHQ-AC) <Par...@CS...>]

I have a Sony VAIO laptop FX-150 with an i815 video.  For many months I have
use fbset with the following arguments "fbset -g 800 600 800 600 8".  This
enlarged my screen to about 80% used instead of like 50%.  I was happy with
this.  This worked very well with SlackWare 7.1 with kernel 2.4.17 at the
end.

I recently installed SlackWare 8.0 and kept my .config file from
SlackWare7.1 kernel 2.4.17.  After installing Slack8 I downloaded the 2.4.17
kernel and applied my old .config to it.  Compiled kernel and installed.  I
then again installed fbset-2.1 so I can obtain more screen then a little
square of display in the center of my screen.

I proceeded with the same command as before. "fbset -g 800 600 800 600 8"
but then received "ioctl FBIOPUT_VSCREENINFO: Invalid argument".  I then
noticed that I was in 4bpp.  Therefore I tried "fbset -g 800 600 800 600 4"
and then this worked.  

Why can I not go back to 8bpp?  I am using the same kernel config as before.
The only change was from Slack7 to Slack8.
Is there something in Slack8 that will not allow me to change bpp's?

Thanks,

Luc

Re: [Linux-fbdev-users] screen gets divided in 2

[Geert U. <ge...@li...>]

On Mon, 18 Feb 2002, Alberto Alonso wrote:
> I have an interesting problem.
> 
> I have a Gemini C1 graphics card, which is based on the
> ET6000 chip but is adapted for fixed frequency monitors.
> 
> When I run a 2.4.17 kernel with fb enabled the screen gets
> divided in half, changing the text to a rather short font so that
> it shows the same contents on both halves of the screen.
>
> I can log in and use the system normally, I can even
> scrool after using cat on a long file. (both screen scroll
> at the same time).

I guess you're using vesafb, since AFAIK there's no native driver for the
ET6000 yet?

> If I log in and switch to runlevel 5,  X windows fires up
> normally and it doesn't have any of the splitting problems.

X uses it's own driver.

> However switching back to a VT will exhibit the problems.
> 
> Any idea as to what I should be doing to fix the problem?
> What files should I be looking at to figure out what is
> going on?

Since vesafb uses the video card as programmed by the BIOS code, there's
nothing you can do, except for writing a native ET6000 frame buffer device.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@li...

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

[Linux-fbdev-users] screen gets divided in 2

[Alberto A. <al...@ma...>]

I have an interesting problem.

I have a Gemini C1 graphics card, which is based on the
ET6000 chip but is adapted for fixed frequency monitors.

When I run a 2.4.17 kernel with fb enabled the screen gets
divided in half, changing the text to a rather short font so that
it shows the same contents on both halves of the screen.

I can log in and use the system normally, I can even
scrool after using cat on a long file. (both screen scroll
at the same time).

If I log in and switch to runlevel 5,  X windows fires up
normally and it doesn't have any of the splitting problems.

However switching back to a VT will exhibit the problems.

Any idea as to what I should be doing to fix the problem?
What files should I be looking at to figure out what is
going on?

I did download the fbset utility (is dated 1999) and looked
at the mode running:

[root@power linux]# /usr/sbin/fbset

mode "640x480-59"
    # D: 25.176 MHz, H: 31.469 kHz, V: 59.489 Hz
    geometry 640 480 640 480 4
    timings 39721 48 16 39 8 96 2
    rgba 6/0,6/0,6/0,0/0
endmode


Thanks,

Alberto

[Linux-fbdev-users] ATI Mach64CT

[Henry J. <sl...@ya...>]

Hi there,

I am trying to install qt/embedded on my Debian box, after compiled it, =
I started the sample program and found the screen is "in green". The =
sample program requires a 16-bit color, I tried 1024x768 and 800x600, =
both are in the same color tone.

It's a PentiumPro 200 box, the display adapter is based on ATI Mach64CT =
chip. The machine runs Debian potato with kernel 2.4.19, with atyfb =
compiled as a loadable module.

I was trying to test it with X frame buffer to see if this is a problem =
of qt or atyfb, but I don't know how to change the color depth and the =
resolution for X.
My best guess is that the rgba 555 should be 565 for that display card. =
I try to set rgba to 565 with setfb, it does not work. setfb --info =
still shows rgba 555.

How can I solve this problem? Thanks in advance.

Henry

Re: [Linux-fbdev-users] rivafb question

[Jurriaan on A. <thu...@xs...>]

On Thu, Feb 07, 2002 at 02:46:36PM -0800, Alix Marchandise-Franquet wrote:
> Hello,
> 
> I hope this is the right place to ask this question, if not can you please
> direct me to the appropriate newsgroup/mailing-list?
> 
> I am trying to use the rivafb driver with an nvidia Geforce 2MX card.
> I have a 2.4.16 kernel which I recompiled with rivafb.
> When I boot my machine, I see the penguin which goes away after a while.
> I don't think I am really using the framebuffer driver since with other
> framebuffer drivers and cards the penguin stayed there and the font got
> smaller. Also, nano-x, when compiled with the framebuffer setting
> doesn't run (but it runs fine when built and run with X11).
> 
> In the instructions for the vesafb driver, there are lines to add in
> lilo.conf, I don't know what these are for rivafb.
> 
> So my questions are:
> 1) How can I know that I am using rivafb?
If you type dmesg | less is there something like:

fb: Voodoo5 memory = 65536K
Console: switching to colour frame buffer device 133x54
fb0: 3Dfx Voodoo5 frame buffer device
pty: 256 Unix98 ptys configured

in there ?

> 2) What needs to go in lilo.conf when using rivafb?

my /etc/aboot.conf contains:

1:1/boot/vmlinux-2.4.18pre8.gz ro root=/dev/sda1 video=tdfx:1600x1200-16@85,nohwcursor
2:1/boot/vmlinux-2.4.17pre1.gz ro root=/dev/sda1 video=tdfx:1024x768-16@75

but you'll need another video= argument.

> 3) I couldn't find any real info on rivafb, where would it be?
> 
If all else fails (meaning nothing on google / google groups), read the
source.

Good luck,
Jurriaan
-- 
'Has eighteen letters' does.
GNU/Linux 2.4.18p7-rmap12a on Debian/Alpha 988 bogomips load:0.09 0.10 0.17