guess the real question is does the temperature input have to be provided in "real time" or can it go through a non RT subsystem like I2C
dmess: easiest is probably to use a TC--> V-F converter so HAL can just count frequency
(unless you need high speed)
Nope, just want to keep a little pot of platic at the right temperature
I assume HAL or some component can map things with just a mere table?
in that case, I could use a thermistor
Yep avoids cold-junction comp
does HAL care if the mapping from freq to temperature is nonlinear?
a 555 seems to be a simple way
Yep, that would probably do
ds3: you could write a simple hal comp to linearize it
hal doesn't care, its just a signa;
but if you want the answer in degrees, you'll need to convert it
hal comp == kernel module or some userspace stuff?
how often do you want to sample? do you care about delays in the 1/100th to 1/2 second range?
it would be so nice to not have put together yet another microcontroller to handle temperaturecontrol and another one to handle openloop motor speed
if it can update once a second, it should be fine, I think
one possibility: use two software pwmgens
one for the motor
the other one you filter heavily and then compare it to the temp signal, bring one bit back in
trying to build a 3D printer loosely modeled after the Reprap design but using EMC to control
write a simple comp (I'd do it in RT, but you don't have to) that changes the pwm out so it "hunts" around the actual value
Hmmm that sounds complicated, I might have come back and bug people on that
ds3: the approach I was talking about is (not very) complex software that lets use use the simplest possible hardware
no A/D converter or anything
jmkasunich: I don't have a full dev system setup so i am trying to avoid redoing kernel modules
V/F converter + software counter will also work, might be more (or less) accurate depending on the V/F
so you want a completely "c-less" solution
just a solution that doesn't require all the headers
I can compile C just fine
I've never tried to compile a user space hal component on a system that didn't have the proper HAL headers
it works for sim, but that is a special case
for what you were proposing, what hardware do I need?
something that gives a reasonable analog voltage range over the temperature range of interest, and a comparator
might be as simple as a thermistor, a fixed resistor, and a $0.50 8-pin dip
something like a thermistor wired as a voltage divider feeding into a comparator along with an output from EMC integrated and feeding into the same comparator?
the integration would be my worry
tracking A/D - if the EMC output is too low, add 1, if too high, subtract 1, you wind up hunting around the actual value
not true integration
passive RC would work
not very good at figuring out required RC constants
1uF and 100K
plus or minus a factor of 10 would probably work, this isn't rocket science
isn't there a min. value or odd things start happening?
yes, you want the time constant to be 10-100 times the PWM frequency
you'd use PDM, not PWM
emc's pwmgen can do both
hmmm I can deal with this...just got to confirm the thermistor I have in mind won't melt at the temps I want to run it in
many thermistors top out at 150C or so
thermocouples go much higher, but they give tiny signals and need amplification
the heater tops out at about 210C... but I am dealing with ABS so it'll probally be around 120C
I know... thermocouple requires more work and cold junction compensation
another possiblity is I can put a glass packaged 1N914 on there as a sensor
that will also be a millivolt level signal
nothing an op-amp can't solve, but it is more complex
what are you actually measuring (physically)? do you want an axial part, probe, SMT, etc?
let me find a picture that approximately shows it
something like this:
[00:50:25] <ds3> http://exmrclean.blogspot.com/2009/01/power-resistor-heater-experiment.html
I have a slightly different design but same idea
glass DO-35 NTC thermistors rated to 300C are just over $1 at digikey
just need to find $24 more things to buy
they also have bead style, same temp range, ~$5
a bit handier since both leads come out the same end
I am tempted to try this thing I salved from a BBQ thermometer
that sounds like a plan
although if it is the kind that gets stuck into a lump of food, it probably isn't rated much over 100C
at 100C internal temp, food becomes rather crunchy
well, it was a dollar store item... not going to worry if it frys
it is in a metal package unlike the epoxy resin ones I have before
hello from mini-ITX land
one of my neighbors has an open router that has 100% signal strength, mine has barely over 50%
yours in the basement or something?
I had the cable modem put in a downstairs room at the end of the house, I'm upstairs, other end of the house
jmk-robot: must have gotten your os installed :)
yeah, running hardy at the moment
emc2 is installed, but I didn't boot tho the rt kernel yet
installing build-deps for emc2
going to use a lot of hal?
pwmgen, encoder, pid
jmk-robot, how does the performance look compared to your desktop?
hard to quantify yet
have you tried your image processing stuff on it yet?
it is thrashing the disk quite a bit (I'm using a laptop drive), but that is to be expected when installing packages
what's your desktop?
I'm using the full blown hardy desktop (installed from the alternate CD tho)
err - what's the CPU in your desktop? :)
core 2 duo, E6600
just so I have a reference when you tell us how much slower the atom is :)
compiling EMC2 should be a nice speed test
after I finish with packages, and reboot into RT
I'm afraid that might run into the "that driver isn't part of the RT kernel" problem tho
that's what I keep forgetting to do
I downloaed the Jaunty Beta 3 ISO, and I keep forgetting to get a CDR to write it to
is there a kernel config with the rt-kernel?
alpha 3 I guess
jmkasunich@robot:/boot$ ls *-rtai
I figured there was, that should make adding the modules you need fairly easy
although last time I had the missing module problem I had to dig rather far into the kernel build menus to fix it
cvs checkouts are starting to take a long time
it's that BigJohnT guy, you just can't stop the gcode buddies
whats funny is that he is on dial-up
he's writing python all the time, no more tv for him, just python
with a string from my house to the hwy through the woods
geez, still downloading the docs dir
I forgot about that, he's been going nuts in there too
jmk-robot: is it snowing in Cleveland?
I haven't looked in the last hour or so
it hasn't the last couple of days - just a flurry sunday, 1/4" or so
skunkworks lives in Wi, correct?
you are too close to be interesting as far as weather predictions go
need to get Roland on here
jmkasunich: are you building an autonomous robot?
gonna try anyway
I'm helping to build a miniature segway type robot
miniature? as in not for people to stand on?
no, the size of a large grapefruit
dang, still downloading docs
hasn't even gotten to the src dir
yikes, my trunk CVS tree (which includes binaries, etc, since I've built in it) is 118M
15M in docs, 84M in src, the rest spread around
I probably have a lot of fpgs cruft down in there somewhere
I'm keeping your wire busy
this is gonna take a while - bbl
say goodnight Gracie
SWPadnos: you were curious about atom speed
Atom: emc2 sim, make after make clean:
core 2 duo, 2.4Ghz:
was the core2 make done with -j?
not bad, for having 2/3 the clock speed, 1/8 the cache, and 1/8 the main memory
no, but cpu load indicators showed it using both cores
unless.... maybe one of jeff's commits triggered some farm activity at the same time
lemme run the core one again
i thought make was multithreaded?
not by default
and it's only multithreaded by file - ie, it runs multiple copies of the compiler
I ran make again on the core 2 (with no other significant load, but still single threaded)
Atom: 5:15 real, core2 2:01 real
then I tried make -j, on the core2 it went down to about 1 minute
on the atom it caused a massive swapfest that I still haven't recovered from
but the network works!
no, just our kernel
so what seems to be the problem?
no problem so far
that people have with the live cd?
I didn't install from the live CD
user has no clue, probably correct :)
I did a stock hardy, then install.sh script to get the RT packages from our repo
the only major weirdness right now is that I have to put the USB stick in to boot
ok, that's a downside
grub is using menu.lst from the hard disk, but apparently the MBR isn't right
this is for all kernels?
I think since the original boot was from usb, the installer wrote a grub MBR to the stick instead of the disk
its a pre-kernel thing
unique to the weird-ass way I did my install
someone told me there are instructions in the ISO for that
I booted from stick, fetched packages from my local server
yeah, I'm sure I can fix it
but not tonight - tired
displayport -- proof that stupidity is not dead
new dell computers ship with a displayport cable, but no displayport ports on the monitor, and I didn't see it on the comp either
SWPadnos: did you buy a power supply?
the one in your cart is $80 now?
after rebate, yes
[04:49:54] <eric_unterhausen> http://www.newegg.com/Product/Product.aspx?Item=N82E16817341002
they have some reasonable deals on Corsair/Silverstone, but those are top of the line and aren't likely to come down much
700W, not in the silencer series (though the PowerWhisper Technology may be the same thing)
at least it
it's got a blue LED
too bad hdmi cables cost $50 locally
what's the trick to ignore homing altogether again? 'no home' in the axis ini? I am having a hell of a time finding info on this recent conversation on the mailing list and have a pure sim version and I don't care to home my virtual machine
leave out all the HOME_*_VEL settings in the ini
I think that does it anyway
ok, thanks SWPadnos
maybe I need some tips on better searching. I started with 'home' in my email client (thunderbird) and got a bunch of cruft
I looked in the wiki
found all kinds of info on home switches
maybe it's in the manual?
(I'm not sure really)
maybe I should start there :)
using sim/axis you can just hit home all anyway - there are simulated home switches in that config :)
seems like it was in the emails just a couple weeks ago
having to read the manual seems so unfriendly
the manual is nice though
I'm so used to google, I forget that we have a good manual
[#emc] "This is the #emc channel - talk related to the Enhanced Machine Controller and general machining. Website: http://www.linuxcnc.org/,
wiki at http://wiki.linuxcnc.org/"
Who is logger_emc ?
Topic Welcome! EMC (Enhanced Machine Controller) is a linux-based opensource CNC control. | Latest release: EMC 2.2.8 | http://www.linuxcnc.org
| Channel logged by logger_emc
note the last bit
Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2009-01-27.txt
Maybe I should read all that stuf at the start ;-}
freenode didn't manage to kick IRSeekBot this time
IRSeek is a company that produces IRC logs
iirc IRseek has to get permission these days (from a channel owner)
until yesterday they were just being kicked from here
is emc organized enough to opt in?
yes we are, thank you very much
but we didn't opt in, as far as I know
since we have our own (google-indexed) loggers
In #mysql I know who did the opt-ing
so other than Pete, has anyone built an EMC controlled motor drive with a Mesa board?
I want to build a drive for my 4 phase brushless spindle
I don't know if anyone has done it.. but jmkasunich would be the one to get ideas from.. He wants to do a 3 phase drive run from mesa
I suspect you'd need to mess with SoftDMC (from Mesa) - I'm not sure that a 1-5 kHz PWM update rate would be sufficient for a vector drive
(or something else that can rotate the drove vector(s) in the FPGA rather than in the PC CPU)
or use jon elson's pwm brushless servo amplifier: http://jelinux.pico-systems.com/acservo.html
well, I guess when you say "build" you mean "build"
jepler: 4 phase
I suspect a 1khz update rate is fine, we use a 10khz rate now, but that's for data acquisition as much as anything
the joys of finding really nice surplus parts: life is never easy
oh I should have read what you said
without recompiling the fpga firmwares I think you only get 4 PWM signals per connector
I only need 4, and their inverse
I guess I could invert in logic
looking at the vhdl source, I don't see a mode that gives pwm and pwm-not
the 4 output modes available are: pwm,dir; dir,pwm; pwm,0 or 0,pwm according to dir; pdm,dir
so I could make it work with an inverter or vhdl
In the discussion of base period set in the ini file, it gives the example for a base period of 50,000 you get a maximum step rate of 20,000 steps per second. This implies to me that if one uses quadrature drive where you get 4 steps per cycle, that you would end up with a maximum rate of 4 x 20,000 = 80,000 steps per second. Does this sound right?
Or is it only .25 steps per cycle for quacdrature?
with both quadrature and the new doublestep step/dir, you can get one step per base period. previously (before doublestep), it took two base periods to get to get a step with step/dir.
jensor, each base period, you can advance or retard the quadrature state by one count
quadrature is still superior though. there are no timing problems with it, like step/dir has
cradek, I went to visit a local foundry yesterday... looking to see what they did, looking for casting supplies, and maybe a job!
how did it go?
I forgot how what a black hole they are.... made me rethink my furnace project....
what do you mean black hole? (I assume they are very dirty and hot...)
It almost seems to me that when one goes through the sequence of states when the unit is outputting motion there are 4 unique conditions before the sequence repeats.
had a very good talk with the owner... yes black gritty dust everywhere, and when they are pouring, its hot and smokey
jensor: in quadrature, each transition ("edge") represents a motion
LawrenceG, take a short term job there just to learn the ropes
Wait, I see every time the input changes the output changes and therefore you would get a step for every input change
the good news is, that I can probably send them any casting projects I want done...
jensor: so to take a single step, you always just change one bit. with step/dir, to take a single step, you have to change one bit and then put it back
it's a superior interface to a stepper driver, and sadly nobody seems to use it
eric_u: Ill have a multiphase PWM module soon. Do you need deadzone between PWM /PWM
I am using it and right now I am fighting an rtaip error. I have streched the base period out to 200,000 and haven't seen the error pop up yet. I was running with it set to 50,000.
Rats I guess I missed him
jensor: you have stepper drives that take quadrature?
interesting - what are they?
I converted a Bandit CNC addon to a Brigeport
oh are they the old BOSS 5ish drives with the exploding transistors?
Probably- I've had t replace quite a few in the conversion process
Bandit was an antique CNC and was supported by Allen Bradley in later years
It had no internal memory and was normally setup with a tape input
I acquired the unit - it had no tape input - I programmed it manually. If power was lost it had to be reprogrammed manually
I bet you are happier now then.
Very much so - it can now do much more than before simpler,faster and probably more accurately
The original g code that it used was was very limited
the ngc doesn 't have a mirror command that they had available
And I found that the mirror command was handy
yes it would be nice if we had mirroring/scaling/rotation...
By the way, I am checking for rtaip errors by running Axis.ngc with a loop that goes iterates for 100 times. I turn the display power off and then come back later to see if the error has shown itself.
If I see it has appeared I stretch out the base period further and rerun
it sounds like you are not finding/fixing the actual problem
what kind of machine is it? what kind of video card?
Well wh;en I run the latency check, I've not seen any thing over 70 uS
It is an intel board, with nvidea
perhaps it's the use of opengl (AXIS) that triggers it. sometimes bad video hardware will do that
ah, nvidia. which driver are you using for the nvidia?
for sure, try the vesa driver if you're not using that
nvidia cards are trouble
Is there a list of compatible cards and would they still be available?
I don't know of a list. I use old matrox stuff. Many are fine if you just use the vesa driver.
I"ll look into that
You mentioned the opening screen, Iv'e never seen the error pop up at that time
I forget the command to list the drivers
I'll have to look it up
Right; here goes my question; I'm sure I'll trigger a 'N00b-alarm' , but here goes.
I'm new to the CNC scene (let that be said), but I'm looking to replace the software used for an X/Y (parport-connected) laser-engraver with EMC-2 on an rt-linux installation.
HONK HONK HONK
oh, sorry, not a question yet
Reason being: the software is half-chinese, comes with USB-dongle, etc.
cradek: I'm sure you'll time will come. Keep your hand on the button ;)
sounds good so far
The thing is, it's a 'cheap chinese laser', one of many out there.. in this case the Rabbitlaser HX40A.
Now, it doesnt seem to be a 'passive Par-port-with-a-ring-counter-and-fets' type of setup inside.
uh-oh, hope it isn't too "smart"
There's altogether too much 40-pin DIP 'CPU-style stuff' (including an Eprom with 'Version 3.33' firmware-revision sticker on it) inside of the mahcine.
yes; well.. that's what i'm worried about.
the old software works still?
I've trawled a couple of forums (sawmill creek, cnczone) and more people have asked about any experiences with replacing the software with Mach3/etc
The software works, perhaps.. we havent unpacked it for the reason that Windows XP and software-dongles and all that already is a hoop for us, let alone the horrendous reviews the software gets.
seems like you have a few choices. you could try to decipher the interface, or throw away the smarts and keep only what you can use
I'm sure we'll end trying it out, but i've seen some really impressive results of machines (retrofitted to be ) using EMC-2
even if you keep nothing but motors and home/limit switches (assuming it has them) your job is not too hard
what kind of motors are they?
*nod*. The latter option has been in my thoughts; however it's ofcourse a lot more work and might be a hard decision to squeeze buy some of the people here.
Being able to 'hot-drop' EMC-2 in there with little hardware destruction is prefferred, but I get the point.
I'm not sure how I can help you
*nod*. Really, I was just wondering if anyone actually had some practical idea about what the kind of protocol could be that these things typically use.
EMC wants to control the motors in realtime - if it's not set up for that, well, not much you can do from outside its box to fix it
hm, good question. but I would be only guessing, sorry
Interestingly enough; some of the pins on one of the 40pin chips have been cleanly dremmeled off. The brand/type/markings on the CPU have been removed too.
have a logic analyzer?
typical obfuscation from the evil side of hardware-land
No. Though depending on the speed it operates on, i might be able to rig together something USB-connected to monitor some traffic.
it's probably somewhat unlikely that EMC will be a good match for whatever you find, though
I guess I'll be checking the newlydraw software suite to see what's in some of the 'Advanced Device Settings' that I see in some screenshots.
I would expect that it takes vectors in (maybe even in hpgl or some other old/common format)
Hmm. So, EMC-2 is really not equipped to handle anything that releases motor-control to 'another entity than itself' ?
EMC wants a much "dumber" (directly controllable) device
even servo drives that work with EMC are fairly dumb - velocity or torque command out to the drive every ms or so, position feedback back into EMC
for steppers, it outputs steps in various configurable ways
*nod*. Right. I reckoned perhaps the hardware.conf file (i forget what the file is called) perhaps had options allowing 'smarter' machines or even some bit of protocol transcription via an outside process
nope, there is really no provision for that currently.
Yeah; I saw some of that; the stepper-config etc.
(to some extent, that way lies madness)
I'm actually (as a coincidence) also working on a collection of old printers and scanners for my own little DIY cnc
which I aim to rig up with EMC2 into a working system
A nice score , so far.
fun. some old deskjets etc have neat little servo motors with encoders
Hmmm, I actually have two laserjet 4's.. but they don't seem to have any steppers.
I have a little lathe that uses a single L298 (dual H bridge meant for a bipolar stepper) to run two servos
An old Matrix 'Star LC24' does. And a a combi scanner/printer from XEROX has two aswell aswell as nice linear guides, belts, gears, etc.
encoder position feedback to the PC, PWM out to the H bridges. simplest/cheapest servo design ever.
Hmm; servo-controlled, fun :)
reason to go for servo instead of steppers ?
(I realize that with encoder-feedback you at least 'know' where your axis is)
they are faster, and it was partly a test of the concept (successful)
yes, it's neat. you can disable the amps and drive it around by hand, the readout on the screen follows.
if it bumps (crashes) into something, you get a following error and it shuts off
That is pretty fun indeed
closed loop servo systems are superior to steppers in some ways, but they are more complex.
optical encoders on a stepper-controlled setup would provide that too, but less 'need' to, I guess.
encoders on steppers could definitely detect a following error
but you've lost all your simplicity though as soon as you do that - no benefit to steppers anymore
yeah.. hence the lack of 'need' for it.. Hmm, still fun to have.
Right; I guess I'll be giving Newlydraw a spin and *hurk* use windows for it. At least it seems to accept PNG, TIFF and GIF (no SVG.. *sigh*)
oh boy, a new hard drive is to have a 2TB capacity.
and only consume between 5 and 7 watt when ACTIVE
does that mean I can seal it in a watertight/airtight case?
justa: that's only for SSD's
I doubt a 2TB platter drive will use 7W ;)
no there are "green" hard drives that use that much
in 1TB at least
< 5400 RPM?
I think I read about those somewhere
swp was evangelizing them
hmm 2TB on raid 10...that would be nice
nothing like a 15k raptor :D
archivist: 50 ftw
2TB drive spinning at half the speed is the same data rate as a 1TB?
raid 10 for databases
but anyway, might as well just use a ram disk, with ram so cheap now
fenn: 2TB of RAM is still a bit expensive
and probably uses more than 7W
this article says 7W active http://hothardware.com/News/WD-2TB-Caviar-Green-Monster-Drive-Preview/
cradek, I remember now, Several days ago someone told me to change a file that specifies the video driver to specify vesa, which I did and then when I rebooted it wouldn't let me login. Fortunately I was able to get to a terminal window and redit the file back and got going again. Don't remember the file name.
So vesa won't work for me
was it xorg.conf?
Why, yes that is the file and the driver that is listed for the nvidea card is nv and the problem occurred when I changed from "nv" to "vesa"
vesa has no 3d accel
Is that bad?
Is that why it wouldn't let me log in?
no. It's likely that VESA just won't work with your card. When you say 'doesnt let me log in', i'm guessing it doesnt show any login-screen
or does it show you a graphic login-prompt but it doesnt work ?
No, a login screen comes up burt when I log in it would just cycle to the same log in screen again
jensor: maybe you just didn't get the change right. as far as I know, nvidia cards do all have vesa support built in.
that's interesting. You can try to login with 'control-enter' instead of 'enter' when confirming the password.
(or select 'Safe session' somewhere in the session-selection).. It could be that something in your login-startup config is broken (dunno why...beyond the scope)
I tried changing it a second time to vesa and got the same result
please try the above.
Fortunaltly the are other options to select from and I was able to get to a terminal window
it's likely not a graphics-card issue but a login-session issue
perhaps it's trying to start compiz (and ofcourse, that won't ever work with vesa driver)
Yes; so it's a session issue.
whatever your default desktop is doing, it requires features the vesa driver doesnt support. Typically, 3d-stuff/DRI-support..
other option is that your disk might be full
or the config-files in your homedir that it tries to read are not readable, corrupted, etc.
What do you run ?.. KDE ?.. Gnome ? XFCE ?
defaults, nost likely
which means gnome
gnome I think
(what you can do with gnome, for example, is startup with the terminal option and try 'gnome-session' on the prompt there.
it'll start the gnome session-manager 'by hand' and you can watch what it tries to do; you'll see any errors it'll print.. etc
I don't really get an option directly to select a terminal mode
it's often called 'safe login' or something along that line
start up with the nv driver, go to System -> Preferences -> Desktop Appearance, and turn off desktop effects
then try vesa again
OR try pressing 'CTRL+ENTER" instead of "enter" after the password. That is a/the way to start 'a clean X with just a terminal'
that's not as useful in this case though, since who knows where the "desktop preferences" option is stored? :)
(if that's the problem)
true. Anyhow.. there's just so much I can debug ;)
under system, preferences, I don't have "desktop appearance'" on the menu, just "desktop background"
oh, it's just "Appearance" in the menu
and then the "Visual Effects" tab
tell us the setting, then set it to "None" if it's not there already
don't have appearance on the menu
is this 6.06 or 8.04, or not Ubuntu at all?
I have pasted the contents of xorg.conf at http://pastebin.com/d2b7952fd
oh. then you don't have desktop effects :)
the line you would change is 93
to Driver "vesa"
and change nothing else
yep thats what i did when it gave me the login problem
in lower case letters?
I wish I understood exactly which kind of login problem you had
what resolution do you have your desktop set to?
The login screen comes up , itype in user name enter, password enter and it loops around to the same screen again
How do I tell
what the res is set to
so the video driver is working, but as justa said, something in your session is not working with the VESA driver
System -> Preferences -> Screen Resolution (I think)
or just Resolution, I don't remember exactly what it's called on 6.06
800 x 600
it's the same on 6.06 SWPadnos
I just looked
jensor, can you pastebin the file /var/log/xorg.0.log ?
jensor: is the problem that you are stuck at 800 x 600?
oops - /var/log/Xorg.0.log
no I can change it with r
I can chage screen res with a cmd - I need to look it up in my notes
That log file wouldn't show the problem now because its been a week or so since I went through that boot problem
I want to see the log from a successful bootup with the nv driver
looking at the web a little, it seems that several people have had various issues with that monitor
it's a native 1280x1024 unit, so that's the best resolution to use
but apparently there's a lot of flicker unless you put in a custom modeline
SWPadnos, the file is at http://pastebin.com/d34e935d0
so you set your desktop to 800x600 on purpose? is that where you want to leave it?
I set it there because the axis screen seemed to look best there
oh, strange :)
you can maximize AXIS :)
you can also change the font size of the DRO (though I don't know exactly how), and there's a BIG DRO tab in the upcoming EMC2 2.3
most things should look better at the native 1280x1024
I used xrandr to adjust the resolution
I don't know that xrandr is usable with vesa
(it could be, but that's an accelerated drawing interface, so I don't know for sure)
you should use the screen resolution application in the system->preferences menu instead
so if I use the gui to set it, I may not have the boot problem?
I don't know :)
this could be relevant: http://osdir.com/ml/freedesktop.xorg.modular/2006-09/msg00001.html
so the monitor is a Viewsonic VA721?
no, ve 510s
ok, the string is wrong in the xorg.conf file :)
Viewsonic VE 510S
If I remember I couldn't find the model 510s as an option in the setup
ah, ok. so it's 1024x768 native. that makes more sense with the Xorg.0.log contents
So I selected the VA721 and that seemed to work ok
except that the VA721 is a 1280x1024 panel
should I change the designation in xorg.conf to VE 510S
no, that won't help
hold on a sec, I'll have a couple of links for you in a minute
or hold on a min - you know :)
ok, try putting the following into your xorg.conf file, inserted between line 99 and 100 in your pastebin:
Modeline "1024x768@60" 64.56 1024 1056 1296 1328 768 783 791 807
I used information from here: http://www.viewsoniceurope.com/UK/Support/NonCurrentLCDs/LCDE2/VE510s.htm
(plus a guessed 65 Mz maximum dot clock, which is as close as I wanted to calculate 1024x768x85 in my head)
MHz that is
and I entered the information here: http://xtiming.sourceforge.net/cgi-bin/xtiming.pl
You will only notice a difference if you switch to 1024x768 mode though (which is what the login screen uses)
you may have to disable xrandr as well. I don't know how to do that
actually, disable xrandr first, then mess with modelines
ok, will try these -will take a while
ok, no problem
have to first figure disabling xrandr
yeah, google should be your friend there