Peter- The "going to sleep" message sound like it is coming from the monitor - not the driver. In other words, the driver is being put into a mode that the monitor does not support.
Instead of setting the mode, delete the XRANDR_MODE_0 line and change the output line to: XRANDR_OUTPUT_0 = "DVI-0 --auto" and see if that cures things. -Gadi On Thu, 2009-08-13 at 14:42 +0200, Peter Stein wrote: > xrandr gives: > > $xrandr > Screen 0: minimum 320 x 200, current 1920 x 1200, maximum 1920 x 1600 > LVDS connected 640x480+0+0 (normal left inverted right x axis y axis) 0mm x > 0mm > 640x480 60.0*+ 59.9 > DVI-0 connected 1920x1200+0+0 (normal left inverted right x axis y > axis) 518mm x 324mm > 1920x1200 60.0*+ > 1600x1200 60.0 > 1680x1050 59.9 > 1280x1024 75.0 60.0 > 1440x900 75.0 59.9 > 1280x800 59.9 > 1280x720 60.0 > 1024x768 75.0 60.0 > 800x600 75.0 60.3 > 640x480 75.0 59.9 > 720x400 70.1 > > So it is LVDS - This is a "laptop display", isn't it? Well, your > settings were kind of successful. > > XRANDR_DISABLE = False > XRANDR_OUTPUT_0 = "DVI-0" > XRANDR_OUTPUT_1 = "LVDS --off" > > Disables the LVDS. Just what I wanted. But if I add > > XRANDR_MODE_0 = 1920x1200 > > for my terminal the display shows: "No signal, going to sleep." Looks > like some xrandr stuff that doesn't work. No idea yet, what it could > be. Without XRANDR_MODE_0 = 1920x1200 ldm starts with 640x480. > > Cheers > > > > Peter > > > 2009/8/12 Gideon Romm <[email protected]>: > > Peter- > > > > Do this: > > > > 1. Log in from the thin client, open a terminal window, and type: xrandr > > 2. Take a look at the names of the outputs (ie. "VGA", "TMDS-1", "TV", > > etc) > > 3. Then, figure out which of the outputs is the one that is producing > > the 640x480, and we will turn it off. Here's how: > > > > Let's say, "VGA" is the one we want on, and "TV" is the one we want off. > > You should be able to have in lts.conf: > > > > XRANDR_DISABLE = False > > XRANDR_OUTPUT_0 = "VGA" > > XRANDR_OUTPUT_1 = "TV --off" > > > > That *should* disable the unwanted output. If you want to force a > > resolution on the active output, you can add: > > > > XRANDR_MODE_0 = 1920x1200 > > > > Some drivers will activate outputs through xrandr incorrectly. These > > steps should hopefully rectify it. > > > > -Gadi > > > > On Wed, 2009-08-12 at 15:19 +0200, Peter Stein wrote: > >> Sometimes those machines are just mysterious. Well, LDM_DIRECTX really > >> reduces ssh's CPU usage to zero. But still Maple was unusable. I > >> checked the gnome display settings and found a second display that was > >> activated with 640x480 that was right in the "real display". How come? > >> No idea. > >> Here's my lts.conf: > >> > >> [default] > >> LDM_DIRECTX = True > >> NETWORK_COMPRESSION = False > >> XRANDR_DISABLE = "True" > >> CONFIGURE_X = "True" > >> USE_XFS = "True" > >> XFS_SERVER = "10.153.106.228" > >> SYSLOG_HOST = "10.153.106.236" > >> [S500-6] > >> X_MODE_0 = "1920x1200" > >> > >> If xrandr is not disabled ldm comes up with 640x480. > >> I deactivated the second display manually in display settings and CPU > >> usage of xorg was reduced massively. Now Maple is at least usable, > >> still lagging a bit, but much better. How can I disable the second > >> display for all users or better get rid of it? Does xrandr work for > >> you with the correct screen resolution? > >> > >> > >> Peter > >> > >> > >> > >> 2009/8/12 Frank Bergmann <[email protected]>: > >> > Java should work quicker via NX-Connection. > >> > So you could install the freenx Server on your sever and a fat client > >> > that boots a small desktop und autostarts the nomachine client. > >> > Maybe you should test this first: Boot a client from cd, install > >> > nomachine client and see how it goes. > >> > Frank > >> > > >> > 2009/8/12 Peter Stein <[email protected]> > >> >> > >> >> Compiz is disabled. LDM_DIRECTX didn't help. Video drivers are ok, I > >> >> use the free radeon drivers, they are well tested. > >> >> How should I install such software as Maple, Mathematica locally ... > >> >> This software needs some kind of computer power. The programs are > >> >> huge. That's why we have our workstations and not a thin client. > >> >> Unfortunately this doesn't look like a good plan. So what is left? > >> >> > >> >> 2009/8/11 Gideon Romm <[email protected]>: > >> >> > Peter, > >> >> > > >> >> > You have several options available: > >> >> > > >> >> > 1. LDM_DIRECTX (set to True in lts.conf, video will not be tunneled > >> >> > through ssh and go back to the client directly) > >> >> > > >> >> > 2. LOCAL_APPS - install java and java programs in the chroot and run > >> >> > them as local apps rather than from the server - do the same with ff > >> >> > and > >> >> > plugins > >> >> > > >> >> > 3. See if you have the optimal video drivers for the thin client > >> >> > > >> >> > 4. Disable compiz if it is running on the server > >> >> > > >> >> > These are off the top of my head. > >> >> > > >> >> > -Gadi > >> >> > > >> >> > > >> >> > On Tue, 2009-08-11 at 18:34 +0200, Peter Stein wrote: > >> >> >> Dear LTSP users, > >> >> >> > >> >> >> when it comes to convince somebody of LTSP the usability and feeling > >> >> >> is crucial. After setting the chroot up we started testing. And here > >> >> >> the real problems begin. Our users are scientists, they work for > >> >> >> hours > >> >> >> in front of their monitor and they are *sorry* pissed if the computer > >> >> >> is somewhat sluggish or unusable. > >> >> >> We have enormous problems using Java programs like xmaple and others. > >> >> >> Some are usable, some not. I am aware of the bug here > >> >> >> https://bugs.launchpad.net/ubuntu/+source/ia32-libs/+bug/277069 and > >> >> >> installed the libxcb package of Ubuntu karmic which improved the > >> >> >> speed > >> >> >> a lot. But still it sucks to work with thin clients somehow. > >> >> >> > >> >> >> - moving windows is sometimes decelerated > >> >> >> - firefox dropdown menus still open slowly sometimes (not in > >> >> >> konqueror) > >> >> >> - input in some java programs like xmaple lags - the program is not > >> >> >> usable > >> >> >> - videos are not shown with enough fps > >> >> >> > >> >> >> I have analyzed the traffic a little bit. If you move a window like > >> >> >> gnome-terminal traffic jumps to 5-6 MB/s sometimes. CPU of xorg goes > >> >> >> up to 45%, ssh uses 20%. If one uses xmaple or other Java programs > >> >> >> load goes up to 1.15 which is too much for a single core terminal, > >> >> >> traffic jumps to 14-15 MB. This is more than maximum for a 100 MBit/s > >> >> >> connection, which is still kind of standard (but tested with GBit/s). > >> >> >> > >> >> >> We use: > >> >> >> Ubuntu Jaunty for servers and chroot > >> >> >> terminals have sempron 2100+ (that's not really slow for a terminal) > >> >> >> ATI X1200 with free radeon driver > >> >> >> the server I used for testing has more than enough power: 8 cores > >> >> >> and 16GB RAM > >> >> >> > >> >> >> I also tried hpn-ssh http://www.psc.edu/networking/projects/hpn-ssh/ > >> >> >> with no sufficient result. > >> >> >> So the problem is: > >> >> >> > >> >> >> In many cases (like moving a window etc.) xorg and ssh use too much > >> >> >> cpu. We changed ssh encryption to blowfish which helped only a > >> >> >> little. > >> >> >> What can I do to improve this situation. I ran out of ideas. One > >> >> >> important program which doesn't work, is enough to make this project > >> >> >> rubbish. All my work was for nothing and that would be very > >> >> >> disappointing. > >> >> >> > >> >> >> Thank you very much. > >> >> >> > >> >> >> > >> >> >> > >> >> >> Peter > >> >> >> > >> >> >> ------------------------------------------------------------------------------ > >> >> >> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 > >> >> >> 30-Day > >> >> >> trial. Simplify your report design, integration and deployment - and > >> >> >> focus on > >> >> >> what you do best, core application coding. Discover what's new with > >> >> >> Crystal Reports now. http://p.sf.net/sfu/bobj-july > >> >> >> _____________________________________________________________________ > >> >> >> Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > >> >> >> https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > >> >> >> For additional LTSP help, try #ltsp channel on irc.freenode.net > >> >> > -- > >> >> > -------------------------------------------------------- > >> >> > Gideon Romm | Proud LTSP Developer > >> >> > [email protected] > >> >> > > >> >> > Support LTSP! Buy your hardware at: > >> >> > > >> >> > www.DisklessWorkstations.com > >> >> > www.DisklessThinClients.com > >> >> > > >> >> > (use coupon code: LTSP5P for 5% off thin clients from > >> >> > DisklessThinClients.com) > >> >> > > >> >> > > >> >> > ------------------------------------------------------------------------------ > >> >> > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 > >> >> > 30-Day > >> >> > trial. Simplify your report design, integration and deployment - and > >> >> > focus on > >> >> > what you do best, core application coding. Discover what's new with > >> >> > Crystal Reports now. http://p.sf.net/sfu/bobj-july > >> >> > _____________________________________________________________________ > >> >> > Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > >> >> > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > >> >> > For additional LTSP help, try #ltsp channel on irc.freenode.net > >> >> > > >> >> > >> >> > >> >> > >> >> -- > > >> >> > >> >> ------------------------------------------------------------------------------ > >> >> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 > >> >> 30-Day > >> >> trial. Simplify your report design, integration and deployment - and > >> >> focus on > >> >> what you do best, core application coding. Discover what's new with > >> >> Crystal Reports now. http://p.sf.net/sfu/bobj-july > >> >> _____________________________________________________________________ > >> >> Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > >> >> https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > >> >> For additional LTSP help, try #ltsp channel on irc.freenode.net > >> > > >> > ------------------------------------------------------------------------------ > >> > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 > >> > 30-Day > >> > trial. Simplify your report design, integration and deployment - and > >> > focus on > >> > what you do best, core application coding. Discover what's new with > >> > Crystal Reports now. http://p.sf.net/sfu/bobj-july > >> > _____________________________________________________________________ > >> > Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > >> > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > >> > For additional LTSP help, try #ltsp channel on irc.freenode.net > >> > > >> > >> ------------------------------------------------------------------------------ > >> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > >> trial. Simplify your report design, integration and deployment - and focus > >> on > >> what you do best, core application coding. Discover what's new with > >> Crystal Reports now. http://p.sf.net/sfu/bobj-july > >> _____________________________________________________________________ > >> Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > >> https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > >> For additional LTSP help, try #ltsp channel on irc.freenode.net > > -- > > -------------------------------------------------------- > > Gideon Romm | Proud LTSP Developer > > [email protected] > > > > Support LTSP! Buy your hardware at: > > > > www.DisklessWorkstations.com > > www.DisklessThinClients.com > > > > (use coupon code: LTSP5P for 5% off thin clients from > > DisklessThinClients.com) > > > > > > ------------------------------------------------------------------------------ > > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > > trial. Simplify your report design, integration and deployment - and focus > > on > > what you do best, core application coding. Discover what's new with > > Crystal Reports now. http://p.sf.net/sfu/bobj-july > > _____________________________________________________________________ > > Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > > For additional LTSP help, try #ltsp channel on irc.freenode.net > > > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _____________________________________________________________________ > Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > For additional LTSP help, try #ltsp channel on irc.freenode.net -- -------------------------------------------------------- Gideon Romm | Proud LTSP Developer [email protected] Support LTSP! Buy your hardware at: www.DisklessWorkstations.com www.DisklessThinClients.com (use coupon code: LTSP5P for 5% off thin clients from DisklessThinClients.com) ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
