Hello
I created an application in c language for HP-UX operative system,and it runs on a 32 bits PARISC processor. My problem is that I have to run this same application but now in a 64 bits Parisc processor. But I am not able to compile the application with the 64 bit server, and I only could use... (1 Reply)
I'm very new to UNIX (I just started working with Terminal 2 days ago) and I don't know the system very well.
I'm having trouble whenever I am asked for a password. I simply... can't type. I press keys on the keyboard but no characters appear on the screen. For example, when I log onto... (5 Replies)
I'm trying to set up a secure and trusted connection between 2 boxes running solaris using ssh2.
I've run ssh-keygen2 on the local box and on the remote box, created the identification file ( IdKey id_dsa_2048_a ) on the local machine and copied across the public key file from the local to... (5 Replies)
I have a cronjob that I need to run everyday and it needs to have todays date inputed, here is what I have, but is not working as expected..........
23 02 * * * cd /path;./RequestSummaryReport.sh $(date +%Y-%m-%d)
the output from mail gives me.............
Date: Fri, 8 Feb 2008 02:12:07... (4 Replies)
I try to compare the day and month of someones birthday with the day and month of today, so my little bash script can send a mail to the person that has its birthday that day.
The first line of the file birthdays looks like this:
firstname,lastname,01/01/1990,....
The variable birthday's... (4 Replies)
Hello All
I have a set of files, each one containing some lines that follows that regex:
regex='disabled\,.*\,\".*\"'and here is what file says about each files:
file <random file>
<random file> ASCII text, with CRLF line terminatorsSo, as an example, here is what a file ("Daffy Duck - The... (3 Replies)
I am aware this question has been answered time and again. I feel I have tried everything I have seen on the net and really need help to get this working.
Same old story. Shell script, working from command but not from cron. I need my script to take values from a .properties file. Tried... (2 Replies)
I am setting up a system as an ADSL gateway. ADSL is working fine. PF is not forwarding for some reason.
# ifconfig
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 33196
priority: 0
groups: lo
inet6... (0 Replies)
Alright, so I've been banging my head against the wall for the past 7 hours trying to figure this out :wall:. What I'm trying to do is "unwrap" periodic coordinates from a molecular simulation to put them back in their unit cell box. I've accomplished that little bit of magic easily enough, but... (6 Replies)
Hi,
I am trying to login from one AIX server to another without using a password, a basic configuration, however it doesn't seem to work.
All things are in place. I have both a public and private key in the ~/.ssh folder and also have an "authorized_keys" file on the target-server containing... (5 Replies)
Discussion started by: Hille
5 Replies
LEARN ABOUT REDHAT
fb.modes
fb.modes(8) Linux frame buffer utils fb.modes(8)NAME
fb.modes - frame buffer modes file
DESCRIPTION
/etc/fb.modes contains an unlimited number of video mode descriptions. The general format of a video mode is:
mode
geometry <xres> <yres> <vxres> <vyres> <depth>
timings <pixclock> <left> <right> <upper> <lower> <hslen> <vslen>
options <value>
endmode
OPTIONS
geometry options:
xres visible horizontal resolution (in pixels)
yres visible vertical resolution (in pixels)
vxres virtual horizontal resolution (in pixels)
vyres virtual vertical resolution (in pixels)
depth display depth (in bits per pixel)
timing options:
pixclock
length of one pixel (in picoseconds)
left left margin (in pixels)
right right margin (in pixels)
upper upper margin (in pixel lines)
lower lower margin (in pixel lines)
hslen horizontal sync length (in pixels)
vslen vertical sync length (in pixel lines)
other options:
the first value of this options is the default
hsync {low|high}
the horizontal sync polarity
vsync {low|high}
the vertical sync polarity
csync {low|high}
the composite sync polarity
extsync {false|true}
enable or disable external resync. If enabled the sync timings are not generated by the frame buffer device and must be pro-
vided externally instead. Note that this option may not be supported by every frame buffer device
laced {false|true}
enable or disable interlace. If enabled the display will be split in two frames, each frame contains only even and odd lines
respectively. These two frames will be displayed alternating, this way twice the lines can be displayed and the vertical fre-
quency for monitor stays the same, but the visible vertical frequency gets halved
double {false|true}
enable or disable doublescan. If enabled every line will be displayed twice and this way the horizontal frequency can easily
be doubled, so that the same resolution can be displayed on different monitors, even if the horizontal frequency specifica-
tion differs. Note that this option may not be supported by every frame buffer device
INTERNALS
Generally a frame buffer display is organized as follows:
+---+---------------+---+---+
| | ^ | | |
| | | 5 | | |
| | v | | |
+---#################---+---+
| # ^ # | |
| # | # | |
| # | # | |
| 1 # | 2 # 3 | 4 |
|<->#<------+------>#<->|<->|
| # | # | |
| # | 6 # | |
| # | # | |
| # v # | |
+---#################---+---+
| | ^ | | |
| | | 7 | | |
| | v | | |
+---+---------------+---+---+
| | ^ | | |
| | | 8 | | |
| | v | | |
+---+---------------+---+---+
1 left margin
2 xres
3 right margin
4 horizontal sync len
5 upper margin
6 yres
7 lower margin
8 vertical sync len
The area bordered with `#' is the visible display area. Horizontal and vertical frequencies can now easily be calculated, for this the sum
of horizontal or vertical values are important
htotal = left + xres + right + hslen
vtotal = upper + yres + lower + vslen
The length of one line can now be calculated with pixclock
line = pixclock * htotal
and we have the horizontal frequency
hfreq = 1E12 / line = 1E12 / (pixclock * htotal)
To get the vertical frequency vtotal must eventually adjusted. If the display is laced, vtotal must be halved or if the display is a dou-
blescan one, vtotal must be doubled. Now we can calculate the length of one frame
if (lace) vtotal /= 2
if (double) vtotal *= 2
frame = vtotal * line
and we get also the vertical frequency
vfreq = 1E12 / frame = hfreq / vtotal
SEE ALSO fbset(8), fbdev(4)local Aug 1996 fb.modes(8)