[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
This bug was filed against a series that is no longer supported and so is being marked as Won't Fix. If this issue still exists in a supported series, please file a new bug. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/153425 Title: (Multiseat) screen shifts when /dev/console written to To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/153425/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
For the record I filed this as Ubuntu Bug https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/606512 -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
I now realise my comments were about a different kind of right-shifting behaviour which affects only the text on a line by line basis, not the whole screen, and which appears to be known as the "staircase effect". Sorry for posting off topic. But, since I started, I'll mention that I managed to solve the problem by disabling Plymouth at shutdown. I'm not sure if this has other undesirable effects, but it did sort out my shutdown messages! -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
In the case that I've examined I can add that the newline is supplied by the log_success_msg function in /etc/lsb-base-logging.sh which is sourced into the bash script providing the echo -n (Dell/SARA's /etc/init.d/dataeng in this particular case). -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
I'm seeing much the same right shifting of the console while running a serial console. System is Dell T110 PowerEdge, running Ubuntu 10.04 Lucid. Serial Console is running on windows with the same results using either a mintty windows or a Cygwin X xterm window. It mostly seems to affect shutdown messages rather than boot messages, and, as far as I can figure out it's related to shutdown messages generated using echo -n. When the "newline" finally comes it causes a line feed but not a carriage return. The text gradually shifts right making some of it unreadable. I'm not sure this is the same problem you're seeing, but it sounds very similar. -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
For all the users having problems with X keyboard input ending up on the console (bastafidli, Jeremy, others): I finally appear to have solved it for my system. Apparently, the newer evdev-code doesn't perform exclusive grabbing of the device anymore! See this http://cgit.freedesktop.org/xorg/driver/xf86-input- evdev/commit/?id=4912e2aa7f867a86d383010023b8426c881fb3b0 commit. So, the very simple fix is to add 'Option "GrabDevice" "yes"' to all your evdev input devices in xorg.conf. -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
I have not had any problem with input going to the console using no- scroll. It is something to be aware of and test for, but it is a viable option to make things work. no-scroll has nothing to do with where input is sent. It's more likely that input showing up on the console directly is related to incorrect input configuration than the issue in this bug at all. -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
I had this screen shifting problem on my multiseat system. I know very little of the internal things inside Xorg an GDM, but I managed to circumvent screen shifting with the following configuration in /etc/gdm/gdm.cont. In [servers] section: 0=Standard device=/dev/console 1=Ilkka [server-Ilkka] name=Standard server command=/usr/X11R6/bin/X -layout LayoutIlkka -br -audit 0 -nolisten tcp -sharevts -isolateDevice PCI:3:0:0 vt8 flexible=true handled=true *** Previously I had server section for my primary and secondary graphics card. Then shifting appeared. I configured X to start server 0 by default and I set up a server section in /etc/gdm/gdm.conf only for the second seat. Now the screen shifting has completely disappeared and both seats work nicely. I verified it doesn't mess console by running screendump 1 to see that no characters are written to console. Now even switching to virtual terminals (ctrl+alt+f1..f6) doesn't mess the screen like before. DO NOT USE no-scroll in kernel boot parameter for this because it just makes the problem harder to see and fix. The console at tty1 still works even if it doesn't scroll, so you can mess your computer badly if you type rm -rf * in a text editor in X because it is going to be executed in tty1 shell, too! -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
Jeremy, I have tried what you have suggested and no file has appeared. Everything seems to be working just fine for me. I am using two Wireless USB Natural Keyboard/Mouse sets with vanilla Ubuntu Jauty 9.04 fully patched. This is my test installation before i upgrade my main instance, thus no tweaks, just vanilla install. The only things I did was to modify /etc/gdm/gdm.conf #0=Standard device=/dev/console 0=Standard0 1=Standard1 # Example of how to set up DISPLAY :1 to also use Standard. #1=Standard # If you wish to run the XDMCP chooser on the local display use the following # line #0=Chooser # X Server Definitions # # Note: Is your X server not listening to TCP requests? Refer to the # security/DisallowTCP setting! [server-Standard0] name=Standard server 0 command=/usr/X11R6/bin/X -br -audit 0 -nolisten tcp -layout seat0 -sharevts -novtswitch -isolateDevice PCI:1:0:0 flexible=true [server-Standard1] name=Standard server 1 command=/usr/X11R6/bin/X -br -audit 0 -nolisten tcp -layout seat1 -sharevts -novtswitch -isolateDevice PCI:0:8:0 flexible=true and my xorg.conf (see attachment). Also I added the no-scroll and removed splash booth parameters to solve the scrolling issue and proper initialization of displays. ** Attachment added: "xorg.conf" http://launchpadlibrarian.net/27886942/xorg.conf -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
I am having possible related problem in jaunty in my multiseat. When i type on one display, I can see the display on the primary console distort in specific location as you type you continue to type the distortion increases left to right like you would if writing normally except, that they are not visable characters. I though i was having irq device driver issues. But seems like this could be related. I was wondering if Jeremy could elaborate a little more on how I would duplicate his workaround got no idea about getty and tty.thanks -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
Jeremy, it is surprising that your multiseat sessions start on ttys with gettys. Convention has been to start X sessions on higher ttys where no getty is running. You should be able to do that by properly configuring GDM. Specifying vt# on the X command line (i.e. /usr/bin/X :0 vt7 ...) should do that. -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
bastafidli, even though your screen is no longer scrolling, I suspect your keystrokes are still being sent to both X.Org and a tty. This is dangerous, because when you enter your login details in GDM, you could not only be logging in to your GNOME session, but also unknowingly executing commands in an invisible command shell. To test this, reboot, log in to GDM as normal, click Places > Home Folder. Then, while you are looking at your Nautilus window, type "touch test" and press Enter. If a file called "test" appears in your home folder, then you are affected by this. The way I solved it was to not have a getty running on the tty I run X.Org on -- there is a udev config file you can edit to control this. -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
In addition I can confirm that adding no-scroll to kernel boot parameters fixes the scrolling problem -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
I have also multiseat setup with two NVidia cards (AGP and PCI) using description on page #http://linuxgazette.net/124/smith.html #http://www.linuxtoys.org/multiubuntu/multiubuntu.html with proprietary nvidia driver. I can confirm that this problem still exists on fully updated Ubuntu Jaunty 9.04. My kernel is Linux gizmo 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:57:59 UTC 2009 i686 GNU/Linux I can also confirm that hitting ENTER on the console on the secondary screen shifts the primary screen from right to left. -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
** Tags added: multiseat -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
When I log off of one seat and X is restarting, the second seat picks up both keyboards and mice. Once X has restarted the mouse and keyboard goes back to the correct X session. Any Ideas? Not a huge issue as I almost never log off but could be confusing since I plan on having the seats in different rooms. -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
@a7x 1. Is your kernel 2.6.22 or newer? 2.6.23.15. I tried no-scroll but it didn't work for me. After 25 or so lines were written to the console it started shifting the screen. 2. Do you have a multiseat setup? Yes, two seats, using nvidia cards with proprietary driver. 3. Does the screen shift happen every time something is written to /dev/console, or only occasionally? The screen will shift to the right only when the screen needs to scroll. i.e. after a reboot, you get ~25 writes to the console without shifting, the 26th time and after, the screen will shift to the right. Or at least that is what happened to me. 4. Can you reproduce the screen shift on demand? If so, how? 'echo "test" > /dev/console' as root. 5. Based on the messages that appear in xconsole, can you tell what messages might be causing the shift? For me it is any message, doesn't matter where it came from. Anything that writes to the console and there are a lot of places that it can come from, will cause it to scroll. -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
This bug is affecting me too on a multiseat setup. Every time the Enter key is pressed, the first screen shifts. (I suspect this is because the input is being sent to a tty as well as X.org, but it doesn't invalidate the bug.) I can confirm that adding "no-scroll" to the kernel parameters works around this bug, though. -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
@shawa: xconsole is a good idea. A few questions for you: 1. Is your kernel 2.6.22 or newer? 2. Do you have a multiseat setup? 3. Does the screen shift happen every time something is written to /dev/console, or only occasionally? 4. Can you reproduce the screen shift on demand? If so, how? 5. Based on the messages that appear in xconsole, can you tell what messages might be causing the shift? Thanks! -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
I am using Fedora 8 and I have the same problem. My screen shifts to
the right when a message is written to the console. When I run
xconsole, the problem goes away. xconsole consumes the messages so it
never makes it to the screen. Its not always possible to have xconsole
running, ie when your at the login screen. So I wrote a short program
to redirect the console. Its working great so far. My plan is to kick
the app off on boot and redirect the output to a file.
gcc -lutil conredir.c -o conredir
#include
#include
#include
#include
#include
#include
int main(int argc, char *argv[])
{
int pty;
int tty;
FILE *input;
int e;
//creates a new terminal
e = openpty(&pty, &tty, NULL, NULL, NULL);
if (e == -1)
{
printf("Error creating pty\n");
return 1;
}
int on = 1;
//assigns the out on the terminal to a console
e = ioctl(tty, TIOCCONS, (char *)&on);
if (e == -1)
{
printf("Error taking console\n");
return 1;
}
//opens a file stream to the terminal
input = fdopen (pty, "r");
char buf[1024];
//print what we get
while(1)
{
fgets(buf, 1024, input);
printf("%s", buf);
fflush(stdout);
}
return 0;
}
--
(Multiseat) screen shifts when /dev/console written to
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[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
I finally upgraded to Intrepid and took out the 'no-scroll' kernel argument. Unfortunately, the problem still exists. -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test: 1) If you are comfortable installing packages on your own, the linux- image-2.6.27-* package is currently available for you to install and test. --or-- 2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD. Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback. ** Tags added: cft-2.6.27 -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
** Attachment added: "lspci-vvnn.log" http://launchpadlibrarian.net/13847906/lspci-vvnn.log -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
Note that the agpgart messages late in this dmesg output are not related to the shift; I restarted X a few times because I had just upgraded to Hardy and was playing around with my xorg.conf (stupid evdev changes). The shift happened much later than 2725 seconds after boot. ** Attachment added: "dmesg.log" http://launchpadlibrarian.net/13847898/dmesg.log -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
** Attachment added: "version.log" http://launchpadlibrarian.net/13847859/version.log -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
@Leann: Confirmed on Hardy. I will attach the requested info. I waited until the display shifted before collecting the info but there's nothing interesting in dmesg. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
People, I have tested several multiseat solutions, for 6 months, there are one stable configuration for now (of course it not depending on your video board, you can use ati, sis...): Take has an example: 4 Nvidias with 2 outputs (one VGA and one DVI or svga) 4 DVI to VGA adapter Use nvidia-xconfig to get your xorg.conf. For all your graphics cards, you MUST run just one X server, without xinerama, having for example, 8 screens, 2 n each PCI. So, after running, you got one stable X process controlling all of your PCIs. After that, you can start one Xephyr (a modern nested X server) on each of your X screen, remember that, you have 8 independent screen on your big X server, so let's start more 7 Xephyrs... to do this test, type on any console: on tty1: aptitude install xserver-xephyr DISPLAY=:0.1 Xephyr :1 & DISPLAY=:0.2 Xephyr :2 & ... DISPLAY=:0.7 Xephyr :7 & DISPLAY=:0.8 Xephyr :8 & Let's see what we have now, 8 X (Xephyrs) servers that's works exactly the same way of a normal X, waiting for a Window Manager! If this test works, you can do the next part of the idea. Now you can configure your gdm.conf to start that one first X server, not putting a login window on it, but instead you can setup your Xephyrs sessions and getting a login prompt on each of it. It's very nice, very stable, without "shifts right and wraps around" effects... And you can play Quake on each Xehpyr! :-D Configuring keyboards and mices it's another question... I think running more than one X on the same machine is the real issue (ins't stable yet), this ins't a "Ubuntu BUG". Think about it, if you start one X server for each PCI board, TILTS is going to happen, because you need to use some specific X options (aka isolateDevice thing) to get it work. I can see it's more beautiful to have each user with your own X but, ins't stable! And you lost 4 seats (with nvidias with dual output). Try the Ubuntu based distro called Userful (http://support.userful.com/wiki/index.php/How_To/Desktop_Multiplier_on_Ubuntu). It's like this setup that I was talking about. You can learn... Now if you *really* want to setup this solution on a enterprise environment, I suggest you to try Ubuntu with LTSP and thin-clients, it's MUCH more stable and less cost too. Best regards, Thiago -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
Hi Everyone, Can anyone confirm this issue on Hardy Heron 8.04 which is set to be released in the next day or two. It contains kernel 2.6.24. If the issue still exists, per the kernel team's bug policy, can you please attach the following information. Please be sure to attach each file as a separate attachment. * cat /proc/version_signature > version.log * dmesg > dmesg.log * sudo lspci -vvnn > lspci-vvnn.log It also might be helpful to wait to capture the dmesg output until after you've triggered the bug. Maybe something will be logged that will help with the debugging. For more information regarding the kernel team bug policy, please refer to https://wiki.ubuntu.com/KernelTeamBugPolicies . Thanks again and we appreciate your help and feedback. ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
Sounds like a kernel issue; refiling against linux. ** Changed in: xorg-server Status: New => Invalid ** Changed in: linux (Ubuntu) Sourcepackagename: xorg => linux -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
** Also affects: xorg-server Importance: Undecided Status: New -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
My previous work around had one negative side affect... with console output redirected to the serial port, unplugging my usb keyboard (which generates several lines of console output) caused the machine to hang hard. A new work around I found is to specify the kernel boot parameter "no-scroll". According to the bootparam man page: "This option tells the console driver not to use hardware scroll (where a scroll is effected by moving the screen origin in video memory, instead of moving the data). It is required by certain Braille machines." -- Steve -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
> I'm on dapper, but the root problem seems the same. Sort of. The 2.6.22 release of the Linux kernel contains a fix that eliminated most of the shifting that happened in 2.6.21 and earlier. With 2.6.22, it is no longer possible to get the screen to shift by typing "echo -n a > /dev/console" many times. However, the fix doesn't appear to cover all cases of screen shifting -- multiseat configurations still somehow trigger the shift, although not nearly as often as before 2.6.22. -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
I'm running two nvidia 6200's (one pci, one agp). I'm on dapper, but the root problem seems the same. If you run 'echo > /dev/console' more than 24 times it should trigger the problem. Once the problem has triggered, running 'echo -n "a" > /dev/console' 80/81 times should get it to shift unless you set the vga mode to more characters, then it might take 125ish? 'a' to cause a shift. -- Steve -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
vandebo: Do you have multiple video cards configured? Are you running Gutsy? Running 'echo -n "a" > /dev/console' many times doesn't trigger the problem for me. -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
Workaround at end of message. I have been experiencing the same bug. After reading this bug report and doing a little experimentation, I can confirm that output (specifically scrolling) to /dev/console triggers the screen shifting to occur. Furthermore, the problem only occurs when /dev/console is connected to the vga console. Once the problem has occurred, echo -n > /dev/console does not affect the shifting since it omits the carriage return and does not scroll the screen. echo -n "a" > /dev/console Does affect the shifting after being run 80 times, causing the console to scroll. Until a kernel fix is available, I have worked around the problem by adding console=ttyS1,38400 to my kernel boot options (/boot/grub/menu.lst) to prevent all output to the vga console. -- Steve -- (Multiseat) screen shifts when /dev/console written to https://bugs.launchpad.net/bugs/153425 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 153425] Re: (Multiseat) screen shifts when /dev/console written to
I had to go back to single seat mode. The system wasn't stable enough, for other reasons actually. I had it working briefly yesterday and it did happen, and this is indeed Gutsy. ** Summary changed: - screen shifts right when /dev/console written to + (Multiseat) screen shifts when /dev/console written to ** Description changed: Binary package hint: xorg Ubuntu Feisty with all the updates: Xorg 7.2.0 on Linux 2.6.20-16-generic, AMD Atlhon64 X2 5800+ with 3GB of RAM. Two video cards, an integrated ATI Radeon X1250 and a PCI Mach64 Rage Pro AIW: 01:05.0 VGA compatible controller: ATI Technologies Inc Unknown device 791e 03:06.0 VGA compatible controller: ATI Technologies Inc 3D Rage Pro (rev 5c) - I'm using a multiseat configuration. It work fine, mostly. One problem is that the screens in the second screen (mach64) shifts right and wraps around at seemingly random times, mostly a few seconds after initialization. Looking with Google I found a similar problem (http://www.mail-archive.com/[EMAIL PROTECTED]/msg150582.html), but in their case seemed to be related to screen blanking, that is not the case for me. Anyway, I tried to write random text to /dev/console, and the screen does shift around! It takes eight lines like: + I'm using a multiseat configuration. It works fine, mostly. One problem is that the screens in the second screen (mach64) shifts right and wraps around at seemingly random times, mostly a few seconds after initialization. Looking with Google I found a similar problem (http://www.mail-archive.com/[EMAIL PROTECTED]/msg150582.html), but in their case seemed to be related to screen blanking, that is not the case for me. Anyway, I tried to write random text to /dev/console, and the screen does shift around! It takes eight lines like: echo "some random text">/dev/console to produce a complete rotation back to the original position. I'm running at 1152x864, 75Hz refresh rate, but if I change to, say 1280x1024, 60Hz the effect remains the same. My Xorg.conf is as follows: # /etc/X11/xorg.conf (xorg X Window System server configuration file) # # This file was generated by dexconf, the Debian X Configuration tool, using # values from the debconf database. # # Edit this file with caution, and see the xorg.conf(5) manual page. # (Type "man xorg.conf" at the shell prompt.) # # This file is automatically updated on xserver-xorg package upgrades *only* # if it has not been modified since the last upgrade of the xserver-xorg # package. # # If you have edited this file but would like it to be automatically updated # again, run the following command: # sudo dpkg-reconfigure -phigh xserver-xorg Section "ServerFlags" Option "DefaultServerLayout" "alltogether" Option "AllowMouseOpenFail""true" Option "AIGLX" "true" EndSection Section "ServerLayout" Identifier "alltogether" Screen 0 "Screen0" 0 0 Screen 1 "Screen1" RightOf "Screen0" InputDevice "PS2Mouse" "CorePointer" InputDevice "PS2Kbd""CoreKeyboard" InputDevice "UsbMouse" "CorePointer" InputDevice "UsbKbd""CoreKeyboard" EndSection Section "ServerLayout" Identifier "Seat0" Screen 0 "Screen0" 0 0 InputDevice "PS2Mouse" "CorePointer" InputDevice "PS2Kbd""CoreKeyboard" Option "Composite" "0" EndSection Section "ServerLayout" Identifier "Seat1" Screen 1 "Screen1" 0 0 InputDevice "UsbMouse" "CorePointer" InputDevice "UsbKbd""CoreKeyboard" Option "Composite" "1" Option "XVideo""Enable" EndSection Section "Files" # path to defoma fonts FontPath "/usr/share/fonts/X11/misc" FontPath "/usr/share/fonts/X11/cyrillic" FontPath "/usr/share/fonts/X11/100dpi/:unscaled" FontPath "/usr/share/fonts/X11/75dpi/:unscaled" FontPath "/usr/share/fonts/X11/Type1" FontPath "/usr/share/fonts/X11/100dpi" FontPath "/usr/share/fonts/X11/75dpi" FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType" EndSection Section "Module" Load"dbe" Load"extmod" Load"fbdevhw" Load"glx" Load"record" Load"bitmap" Load"ddc" Load"dri" Load"freetype" Load"int10" Load"vbe" EndSection Section "InputDevice" Identifier "PS2Kbd" Driver "evdev" Option "Device""/dev/input/event1" Option "XkbModel" "evdev" Option "XkbLayout" "us" EndSection Section "InputDevice" Identi
