Debian Hardware :: Fbcon Switches Primary Fb Device
Mar 28, 2014
i'm using a fitpc2 in a network cabinet in my closet. I've got a lilliput 7" usb monitor plugged into it. for the most part it all works fine, however on some reboots fbcon gives the primary gfx card the fb device and the lilliput ceases to display the console. its really rather odd.. the udlfb module loads and displays some booting messages but right after it loads the stupid gma500 and reassigns the /dev/fb0 to it, so your just left with the last frame in the buffer i suppose on the lilliput
if i login blindly and startx, the display comes back to life, but while in X the display isn't updated for any of the ttys when switched to them via ctrl-alt-F1 etc.. and again, sometimes it works sometimes is doesn't..
i'm curious if there is a way to force fbcon to use the udlfb device as its primary and either ignore the gma500 on boot or set it to a secondary. i don't really want to get rid of the ability to use the onboard video, i'm just not going to unless the box is so far gone i need to use an actual monitor..
debian 7.4
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May 17, 2011
I'm trying to create an xorg.conf file. I've used Xorg :1 -configure and Xorg -configure in the console but i keep on getting the same error message.
FATAL: Module fbcon not found. Number of created screens does not match the number of detected devices. Configuration failed.
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Jan 31, 2010
Boot up with 2.6.32 kernel. Get to login screen, X attempts to start and fails. I log in, execute startx and succeed. Yesterday, could not boot up at all with .30 kernel. Upgraded to .32, so partially fixed. Yesterday also un-installed Synaptics package, as do not have touch-pad on this machine (Thinkpad X40)
This from kdm.log:
X.Org X Server 1.7.4
Release Date: 2010-01-08
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.32-trunk-686 i686 Debian .....
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Aug 21, 2011
How can I disable fbcon in Fedora 15?
My object is to get a console resolution of 80(characters)X25(lines) with an appropriate font.
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Jan 4, 2010
I use czech QWERTZ keyboard layout, but sometimes it accidentaly switches to (probably) english or US qwerty, so I am unable to write our national characters (which share the keys with numbers on laptop), it writes Y instead of Z etc.
So I am unable to write normal text. I looked in keyboard settings, but it seems to be ok:
layout is "Ĩesko with <|> key" - HP Pavilion ZT11xx - this seems to be OK and it worked without problems before this accidental switch.
there is no other layout than the mentioned one and in Layout settings (hope this is correct as I have this in Czech) I unchecked all boxes in Layout switching.
I absolutely have no idea where is the problem. Maybe it is some keybinding but did not find anything which could do this.
I use Debian Lenny with added a11y apps like Orca etc. called Vinux. I tried to ask there, but currently wihout success.
The whole thread is here: [url]
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Feb 24, 2010
I've setup a samba pdc, everything works like a charm.. except for the windows theme of the ldap users.Whenever a user logs in on the xp client.. the xp client automaticly switches to classic view instead of the normal xp-style.
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Apr 3, 2011
I use XDMCP from an old laptop to login remotely to another computer which is running Debian 6. This seemed to work fine in Debian Lenny, and the laptop screen would switch off after a period of inactivity as I expected. Now the laptop screen blanks after inactivity, but the backlight never switches off.
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Sep 29, 2015
Today I set up the energy settings like that:
10 minutes (screen), 20 minutes for suspension.
After around 30 minutes, I came back and switched back on the pc.
The primary monitor (VGA) was not detected, even after a system reboot.
More info about my pc:
Debian stable 8.2, kernel 3.16.0-4-686-pae.
I have an Nvidia card, but currently I am using nouveau drivers.
Two monitors: VGA (primary) and DVI (secondary).
Later I could get my primary monitor to work by switching tty (ctrl+alt+f3 and typing "startx" in the console).
I guess this is related to Xorg configuration (/etc/X11/xorg.conf is empty), but I am not really sure.
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Oct 28, 2010
When I set up my current Debian desktop system ( currently squeeze ) in 2007 I allocated only 8.4G to my / partition. Now I find it is getting too crowded with only about 580M free space (worked around CD & DVD burning by creating a /tmp folder in my /home/username folder). My current plan for fixing this is to use gparted running from a live-cd. I will first delete my swap partition and my /home partition then use gparted to enlarge my / partition to 20G. Next I will recreate & format my swap and /home partitions and restore the contents of my /home partition from backup. I will still have lots of room to spare in my /home partition. My system has no extended partitions. My hd is 250G total. I know this will change the UUIDs of the two new partitions but am not sure if it will change the UUID of the expanded / partition. I expect it will. My next step will be to edit my /etc/fstab and put in the new UUIDs which I will get by running blkid /dev/sdb. My backup drive is an ide drive, /dev/sda. My question is am I likely to run into boot problems with grub2? Should I chroot into my / partition and run update-grub before I reboot or wait to see if it will
reboot first?
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Apr 14, 2009
If I want to get updates I must use or whatever primary mirror closest to me?
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Mar 26, 2010
For a fresh installation using manual partitioning, one single disk (IDE).
If I selected:
For the root partition, I would like to use ext4, 10GB, but by default, the partition type 'extended' is suggested. Would there be any difference (advantages, inconveniences) if I selected the primary partition instead?
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May 21, 2010
I recently did a fresh install of squeeze. I have the stock 32 kernel along with the 34 from experimental (it is listed as stable by kernel.org). I installed version 195.36.24 of the Nvidia driver using the Nvidia installer, and after starting X the system became unresponsive.
grep '^(E' /var/log/Xorg.0.log
(EE) May 21 11:28:50 NVIDIA(0): Failed to allocate primary buffer: out of memory.
(EE) NVIDIA(0): *** Aborting ***
I find this strange considering that I have used this driver with no problem on a 33 kernel and the same video card:
01:00.0 VGA compatible controller [0300]: nVidia Corporation G72M [Quadro NVS 110M/GeForce Go 7300] [10de:01d7] (rev a1) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device [1043:1212]
Flags: bus master, fast devsel, latency 0, IRQ 16
[code]....
I believe it has 256MB of video memory, and I have 1GB of system memory. Is this just a problem with the 34 kernel?
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Aug 19, 2010
I'm running ubuntu 10.04 on a new pc I just bought. Every so often the monitor will just shut down and display a message: "no signal input". I'm sure the computer is still running though because the fan is still running and all lights etc. are still on. I've tried switching the monitor on and off and there is still no input signal, the only solution is to reboot the entire computer.
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Mar 21, 2011
I use vncviewer (win32) to connect to my SuSE 11.3 box. The SuSE box has the "standard" xinetd started Xvnc server running (includes the -inetd switch).
My client (the vncviewer) has to go through a firewall with limited ports available and so I use the command line:
Code:
However, if there is a problem with the connection, such that the client disconnects, it seems that subsequent request to the Xvnc server create a new session/display. The text in the client window reports "nobody's x11 desktop (host:1)", then "...(host:2)", then "...(host:3)" etc.
I have tried combining the display and the port parameters, like this:
Code:
Can anyone suggest an alternative way of reconnecting to a broken vnc session?
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Jan 9, 2010
I purchased a foot pedal [URL], which I want to use as a substitute for the ALT, CTRL and SHIFT key (Mainly in my texteditor, Emacs, where these modifiers are used a lot for commands). So instead of pressing ALT+x I want to press the left pedal + x. However, instead of going into the command mode it just types x to the screen. If I keep the pedal pressed, and type another x, it switches into command mode, like it should have done right away. The device seems to use HID, and lsusb gives:
Bus 005 Device 004: ID 1130:660c Tenx Technology, Inc.
Is there a way, how I can change the behaviour of the device?
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Apr 26, 2010
Sometimes when firefox is open, clicking the firefox icon on the taskbar to maximize firefox rotates my desktop to the next one over. Super annoying, as I have to go and rotate back. Is there a fix to this problem? I think it has something to do with a pop-up that never gets attention when it needs it. Unfortunately, I don't know a good way to reproduce this problem on command yet.
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Jun 21, 2010
Basically I have some Linux experience and have got myself an "old-but-good-machine".
I'm sure the Xubuntu 10.04 cd is OK as I can boot into it with my Windows laptop.
But... for whatever reason I can't boot it under the Live CD or Install options in my old computer?
As soon as I hit one of the options the monitor switches off after a few seconds?
I've tested the computer with a live backtrack cd and gparted live cd which both run fine so it must be something I'm missing in Xubuntu.
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Sep 12, 2010
I have just installed 10.04 x86 for my mom and while she is using it (tyrannically just browsing facebook/email/flash games) the screen randomly goes blank then back to normal again. This symptom generally worsens after a few minutes until it is unusable. Specs are as follows:
Athlon X2 5200+
3GB RAM
ATi 2400pro 256MB (using the standard out of the box drivers)
Also running compiz and emerald so that I was able to make the desktop look like OS X.
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May 10, 2011
I'm running Ubuntu 11.04 on my laptop. At work, we are beginning to tinker with running Ubuntu on our student systems (school district). The thing is, Unity and Gnome Shell are new enough that they are not considered right now as viable options to test in. That said, an alternative was needed that was quick on older systems yet very configurable. XFCE. So I installed XFCE on my Ubuntu machine. This way I can tinker with the interface as if I was a student but then I can bounce back to Unity which I do prefer for personal use. The thing is, the login screen switches over to XFCE's. Is there a way to get my regular Ubuntu login screen back?
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Jun 20, 2011
I have a question about bonded NICs and the switches they are connected to.
I have a server which needs to send a lot of data to another server quickly. Both have multiple GbE NICs. I understand what is required at the server end (I think) in that a pseudo-interface is created such as bond0 with the IP applied to that interface rather than eth0 and eth1.
My question relates to the connection between the servers, i.e. the switch. Is a specific type of switch required for this to work, as an IP will have 2 (or more) MAC addresses associated with it, or how does the switch decide to which port to route the traffic for the bond0 IP?
Also, will this only work when multiple connections are being made? What I mean is, will each individual TCP connection only use either the physical eth0 OR the physical eth1 interface, or can a single connection make use of the aggregated bandwidth, sending one packet to one physical interface and another to the other physical interface, using the bond0 IP as the destination?
What I am trying to work out is if I had a storage server connected to an application server and exporting storage using NFS or GlusterFS, would an aggregated link improve throughput?
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Jun 10, 2010
I have done some searching around the internet and this site, but I haven't found a good way to count the context switches on a thread in a c++ program I am running. I need to know if it get swapped off of a CPU for correct timing.
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Apr 22, 2011
As a part of a school project I am working on monitoring context switches. I'm working on redhat 8.0, kernel version 2.4.18-14 and for some reason I keep getting unclassified reasons which causing context switches from a process to itself. I am trying to determine each context switch, what was the reason that causes it, whether time slice ended, or yielded, or went for waiting or returned from waiting or parameters changed or task ended to task forked or any possible reason.
But all the time I find that the only switches that I cannot determine the reason happens from a process to itself, all this unrecognized switches from process to itself happens only on interactive processes, and sometimes the need_resched flag is on and sometimes is off. What could possibly cause a context switch from a process to itself? Can a returning of a process with a lower (higher by number) priority from waiting cause a context switch?
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Aug 29, 2009
This morning I installed Slackware 13 i386 and started configuring it. I've got a problem as my laptop has turned off unexpectedly twice since I started using Slack 13. I don't know if it's related to Slackware 13 but it has never happened before on this laptop with Slackware 12.2 or any other system. The first guess would be overheating. I checked the laptop's BIOS but could not find anything related to cooling down.
The laptop seems quite hot but it's nothing unusual for it. I also noticed that acpi is not installed by default. Would it make much difference? The laptop is pretty new (6 months) and the cooling module seems to be clean. The only thing that differs from my previous installations is that for the first time I installed ATI's fglrx and enabled desktop effects. Could it be a buggy video driver?
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Jan 26, 2010
I'm configuring Nagios at the moment, but I'm doubting my approach to transparent switches a bit. It seems from reading the documentation that Nagios wants me to ignore transparent switches, although I also doubt this interpretation of mine.
A little example, a VPN:
Code:
demarcation point
|
[router]
/
[switch][switch]
| / |
[7 clients] [switch] [switch]
/ |
[6 clients] [4 clients] [5 clients]
As you can see, there are 22 clients connected to the router. Since switches don't have an address, they cannot be measured. But if I ignore the switches, the schema is an oversimplified picture of reality. So what I'm looking for is a way to display the switches, even though they don't have an address. What I did was, I created the switches as where they proper fully featured ones, and listening to 127.0.0.1 as address. Luckily, this tricked Nagios. And it works, but it's not very elegant. Is there a better way to approach this pseudo-problem? Perhaps a build-in I overlooked?
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Feb 12, 2009
I have 2 cisco sw 3500xl series working properly forwarding traffic. All operations are Layer 2. I have setup keep alive 10 on all the ports. They are connected to another sw together with a Linux router on Cent OS 5.2. I can't ping the switches from the Linux box. If I arping them, I get a response and after that they are accessible for telnet. Otherwise they are not. After 5min the macs are flushed from the arp table of the Linux box, and then again they are not accessible only if I arping them, or set a static mac.
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Jan 13, 2011
I have been running Ubuntu 10.04 Desktop in dual boot mode on my Toshiba Satellite A215 for several months now with no unusual problems. Lately, the gnome desktop has begun switching between my chosen theme (new wave) and another (clear looks). It does this at boot up and will remain that way for a few boots then switch back. Why is it doing this?
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Oct 6, 2010
I am trying to encode files via mencoder. The file name has spaces in it. "test file.mkv". When I manually type the command in the terminal, everything works. But when I use a bash script (I'm reading it from a file) it doesn't. It gives me
Code:
File not found: '"test'
Below is the bash script I wrote
Code:
#!/bin/bash
# For testing, we have already built a file list, so just use that.
# ls *.mkv>files.lst
exec 10<files.lst
let count=0
while read -u 10 FILE; do
LINE="mencoder -of lavf -lavfopts format=mp4 -vf scale=1024:-3 -ovc x264 -x264encopts crf=28:vbv_maxrate=1500:nocabac:global_header:bframes=0 -oac faac -faacopts br=160:mpeg=4:object=2:raw -channels 2 -srate 48000 "$FILE" -o test.mp4"
echo $LINE
exec $LINE
done
exec 10>&-
files.lst contains only a single line (no newline) with
Code:
test file.mkv
On a related note, when I was first trying this simply on the command line, I had a file that had a double exclamation point. I found out that that is a shortcut of some kind for the previous command. My kludge to get around this was to try to execute a single exclamation point as a command, then to change the double exclamation point to a quadruple exclamation point. Is there a proper way (escape sequence or something) to pass double exclamation points to a command?
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Jan 6, 2009
I recently installed Linux - fedora 10. This is the first time im working with Linux, I have no idea about Linux OS. My problem is when i playmusic in real player 10 or rhythm box, the sound switches On and Off. F10 detects my sound card, I believe there must be some settings that needs to be corrected, My sound card is inbuilt in motherboard(Intel). I ran Alsamixer and alsactl store as root.
Volume is at 100th level and it not mute. Still the same, sound switches On and Off. Should I change anything in the settings of volume control? i have choosen Device as HDA Intel (Alsa Mixer), is that correct??I ran Alsamixer and alsactl store as root. Volume is at 100th level and it not mute. Still the same, sound switches On and Off. Should i change anything in the settings of volume control? I have chosen Device as HDA Intel(Alsa Mixer), is that correct?
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Mar 15, 2011
I have a coredump file which gives stacktrace. But I dont know which thread executed or any task switches happened before a crash happened from a given thread. is there anyway to find out.
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Aug 28, 2009
I had been working on a CPP code for sometime now, without being aware that some parts of its code, especially security related were not being compiled. Problem was like my product did not work for SSL mode. On analysis, I found that some part of CPP codes inside a switch(ENABLE_SSL_LIBRARY)were not getting compiled at all. And also that this gets set when we do newgrp crypto command on the box. This left me without lots of doubts. I wanted to understand how these switches work and if this switch was propreitary to my code or something related to Linux.
My questions now are:
1. Switches like the one mentioned above, are they user defined, for my particular code or are they related to Linux/GCC or makefiles?
2.If a user can define such switches to control code compilation, then need to know the concepts/procedures behind it. How is it done ?
Kindly excuse if these are very very basic. But since I could not get proper stuffs on google, I thought I should ask some experts here who could either explain me or point me to appropriate resources (links of articles / tutorials)
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