Debian Configuration :: Profiling Xorg, In-kernel Calls?
Aug 1, 2010
I would like to profile Xorg and find out where it slows down during some particular usage.The only method that came to my mind was to starts sysprof, but that will only show that Xorg spends 85% of its time calling the kernel. Now, what I would want to know is the kernel function called and hopefully the function (or even a call stack) in Xorg which makes kernel calls.The other method I would know is callgrind, but I really don't know how to set up Xorg+KMD to start in valgrind.The problem I'm investigating is an Xorg slowdown after switching virtual terminals, bug #589348.
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Apr 12, 2011
I just system-upgraded (testing) to kernel 2.6.38. All seems ok, except that a few things I added to xorg.conf in the past (basically, keyboard language switch) have no effect anymore. My xorg.conf is still there, it is still the same as before, but the changes I did in XkbdLayout section have no effect. It seems xorg.conf is not used anymore. I assume new version of xorg uses a different configuration file, but I'm not sure.
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Jan 5, 2010
I want to run system tap with user profiling which requires utrace and uprobes support from the kernel. Are there any SUSE kernels which support this either for SLES or open suse?
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Sep 29, 2015
While trying to solve the problem indicated in another thread [URL] .... I realised that I do not have the file /etc/X11/xorg.conf.
Also, if I enter the command Code: Select allsudo kate I get
Code: Select allcannot connect to X server :0
I tried logging in to another terminal (tty3) and entered
Code: Select allstartx
Kate opened normally with root permissions.
Currently I have a Nvidia card but I am using nouveau drivers.
My question is: installing the Nvidia drivers (following the guide in [URL] .....) would fix these Xorg issues?
I had troubles with nvidia drivers in other distros....
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Jan 18, 2011
I'm trying to get the latest Lenny running on some old hardware (a Winterm 3150se). Everything is working just fine except for two things.
When Gnome starts, it comes up at 1600x1200 resolution, which is too high for my monitor. It shows a portion of the right side of the display, If I select Screen Resolution, it gives me a few standard choices, but if I pick one, it acts like it's trying to honor my request, then comes back as 1600x1200 again.
My xorg.conf file had no references to Modeline, so I added a 1024x768 Modeline, not really understanding where the selection I was given was coming from. Anyway, it didn't help.
I can see in the log file that right after the entry about using xorg.conf, it says 'Module "ddc" already built-in', which must have something to do with it?
My hardware supports all the usual video formats, at least it does when it's running WinCE. Is there a way to force the use of xorg.conf or can someone tell me why DDC is acting like it's "read only"? Is DDC a file somewhere?
My other problem is that the Winterm refuses to not try to boot from the flash memory thumbdrive even though it's formatted as a non-bootable device - it's my SSDisk. I have to boot without the drive in, then slip in in just as the boot process exits the blue start screen. I can live with this problem, since it might be dumb hardware.
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May 5, 2010
I tried to inactivate my touchpad during typing in order to avoid the curser jumping all the time due to accicentally hitting the pad.
The touchpad however worked from intallation on,without problems. Even two finger scrolling is supported perfectly. All attempts that I found in searching the internet rely on changes in the xorg.conf. I found out that it is quite normal to not have this file with debian squeeze, however I didn't find a solution how to change the configurations without it.
$ syndaemon -d -k
gives
> Unable to find a synaptics device
[code].....
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May 27, 2010
From aptitude log
[UPGRADE] acpi 1.5-1 -> 1.5-2
[UPGRADE] acpid 1:2.0.4-1 -> 1:2.0.5-1
[UPGRADE] cron 3.0pl1-110 -> 3.0pl1-111
[UPGRADE] initscripts 2.87dsf-10 -> 2.88dsf-5
[UPGRADE] libavcodec52 5:0.5.1+svn20100427-0.0 -> 5:0.5.1+svn20100512-0.1
[UPGRADE] libavformat52 5:0.5.1+svn20100427-0.0 -> 5:0.5.1+svn20100512-0.1
[UPGRADE] libavutil50 5:0.5.1+svn20100427-0.0 -> 5:0.5.1+svn20100512-0.1
[UPGRADE] libcue1 1.3.0-1 -> 1.4.0-1
[UPGRADE] libpostproc51 5:0.5.1+svn20100427-0.0 -> 5:0.5.1+svn20100512-0.1
[UPGRADE] libswscale0 5:0.5.1+svn20100427-0.0 -> 5:0.5.1+svn20100512-0.1
[UPGRADE] sysv-rc 2.87dsf-10 -> 2.88dsf-5
[UPGRADE] sysvinit 2.87dsf-10 -> 2.88dsf-5
[UPGRADE] sysvinit-utils 2.87dsf-10 -> 2.88dsf-5
[UPGRADE] xserver-xorg-video-vesa 1:2.3.0-2 -> 1:2.3.0-3
I start my box from startx but after getting these updates, x tries to start, I see a mouse and a screen for a second and then it drops out again. I'm running the latest nvidia drivers from nvidia and have tried reinstalling them and they install fine, but no go.
Only thing I can find in xorg.log is:
(II) Power Button: Close
(II) UnloadModule: "evdev"
(II) Power Button: Close
(II) UnloadModule: "evdev"
(II) Logitech Logitech BT Mini-Receiver: Close
(II) UnloadModule: "evdev"
(II) Logitech Logitech BT Mini-Receiver: Close
(II) UnloadModule: "evdev"
(II) MLK wireless combo set: Close
(II) UnloadModule: "evdev"
(II) MLK wireless combo set: Close
(II) UnloadModule: "evdev"
(II) IR-receiver inside an USB DVB receiver: Close
(II) UnloadModule: "evdev"
(II) IR-receiver inside an USB DVB receiver: Close
(II) UnloadModule: "evdev"
(II) Macintosh mouse button emulation: Close
(II) UnloadModule: "evdev"
My xorg.conf file is void of anything related to input devices and has been working a treat. So it would seem one of these updates has screwed evdev. I've tried reverting back to earlier versions, but I get the same issues. I was running squeeze with kernel 2.6.32-4-amd64 when all this happened. It was running like a trooper. I've now tried 2.6.32-5-amd64 but still no go.
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Nov 2, 2010
I've been scouring the internet for an answer to this problem. I am using Squeeze and have properly configured Grub2 to set my console screen resolution to 1024x768x32 (as per updating /etc/default/grub to contain 'GRUB_GFXMODE=1024x768x32' and updating /etc/grub.d/00_header to contain 'set gfxpayload=keep') and everything works wonderfully. My resolution is set as it should be. However upon installing Xorg (aptitude install xorg ratpoison), my console resolution gets changed to what appears to be 1280x1024.
I thought that this was due to xrandr, however when I issue:
# xrandr -s 1024x768
only the X resolution is changed. When I then CTRL-ALT-F1 back to the console, the resolution is still at 1280x1024 (I am aware that xrandr only affects X, but I assumed that because my console resolution was correct before installing X there might have been some correlation).
I would like for my console resolution to stay at 1024x768 as per Grub2's configuration and for X's resolution to be at 1280x1024.
PS I also noticed that prior to installing Xorg, my CPU boots up without any screen blanking (only for a second or so). However, after installing Xorg, during the boot process the screen does blank briefly. It is at that time that the resolution gets changed to the 1280x1024 setting.
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Nov 17, 2010
I'm trying to get my Intel HM55 GMA HD graphics card to work in Debian Lenny.As the vanilla Xorg didn't have any support for it, I manually compiled the last stable Xorg source (1.7.1 - such a pain) and the Intel driver. But when I try to launch X, I get the following message :
(EE) GARTInit: Unable to open /dev/agpgart (No such file or directory)
(EE) intel(0) : /dev/agpgart is either not available, or no memory is available for allocation. Please enable agpgart.
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Feb 2, 2010
for some reason I got taping on touchpad is disabled after some software upgrade or something.I can enable it with synclient TapButton1=1, etc.. but have got to do it every time I reboot. Also, I don't have Xorg.conf file. Is there any way I can configure taping to work permanently ?
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Jul 6, 2011
I have setup a Sun Ultra 2 with Debian 6. It currently has dual 200MHz sparc I CPUs, 512MB RAM, and a Creator 3D 15MB video card. I have in the mail on its way to me dual 300MHz sparc II CPUs and enough RAM to max this thing out at 2GB. Anyway, I am currently having an issue configuring xorg.conf. The only resolution available to me is 1152x900 (which isnt even a supported resolution by my monitor), but Id like to use 1280x1024. I have tried for probably over a week now to no avail. I will paste my current xorg.conf file (the relevant parts), and please keep in mind that I have been messing with this file for a while so sorry if it looks bad.
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Apr 1, 2014
I am running Debian 7.0 Wheezy amd64...I installed Debian's nvidia driver earlier but I was having a few issues with OpenGL. So I removed those drivers using "apt-get remove nvidia*" and installed proprietry NVIDIA's driver from their website.Now the issue is, my apt-get/synaptic does not work anymore because it is trying to remove xserver-xorg-video-nvidia and failing to do so.
Code: Select allThe following packages will be REMOVED:
xserver-xorg-video-nvidia
0 upgraded, 0 newly installed, 1 to remove and 4 not upgraded.1 not fully installed or removed.After this operation, 17.8 MB disk space will be freed.Do you want to continue [Y/n]? Y
(Reading database ... 194280 files and directories currently installed.)Removing xserver-xorg-video-nvidia dpkg: error processing xserver-xorg-video-nvidia (--remove): subprocess installed post-removal script returned error exit status 128.Errors were encountered while processing: xserver-xorg-video-nvidia.E: Sub-process /usr/bin/dpkg returned an error code (1)I have tried apt-get install -f to no avail.
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Jul 1, 2011
I just updated my Debian testing as usual (apt-get update && apt-get dist-upgrade), and it totally screwed up Nvidia drivers. I had to revert to integrated graphic card to start Xorg.
After that, I noticed that libgl1-nvidia-glx is missing, and when I tried to install it back, it produces the following:
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
libgl1-nvidia-glx : Depends: libgl1-nvidia-alternatives but it is not going to be installed
E: Broken packages
Any ideas what's going on with it?
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Jul 8, 2011
I tried to edit my xorg.conf to try and encourage Debian to handle my joypad better (stop recognising it as a mouse). However, it didn't work and i couldn't get back into X.So, i entered recovery mode and deleted the contents of xorg.conf,got back into X and then edited xorg.conf back to how it was.Right so far so good.Yet, now i cannot use the backlash key in keyboard shortcuts. I have a number of shortcuts set up to incorporate this key and they no longer work, neither in GNOME nor Openbox
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Jan 24, 2010
I recently installed debian squeeze 32bit on a second partition of my amd athlon 64 X2 dual core machine.Currently it is using linux-image-2.6.32-trunk-686 kernel.But linux-image-2.6.32-trunk-amd64 is available.on the repository.Is it a 64bit kernel or 32bit kernel optimized for amd64 architecture?
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May 13, 2011
I am using DEBIAN 6.0 and I wannna update my kernel from 2.6.32 to 2.6.38. Every time, I do it but after the installation & rebooting into the new kernel it gives me error "UNABLE TO BOOT INTO THE KERNEL".
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Jan 24, 2010
I have a problem with my custom kernel when I want to create the Nvidia kernel module.After this finished I installed the image and headers and created the Nvidia kernel module. Everything worked fine.However, if I remove the linux-source from my home directory then I can't create the kernel module.Even though I have the headers for the kernel installed.
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Jun 20, 2010
How can I install xserver-xorg without all the unnecessary drivers for video cards / peripherals I do not have on my system?
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Jul 10, 2010
I've been using ubuntu on a new desktop for a couple of months, but i had an old HP that was given to me in my basement. It has 384Mb of ram, and thats because i had a 256Mb stick laying around. I installed debian becuase it is more suited for older hardware (at least from what I've read). It installed fine, but it boots to a blank screen, and pressing ctrl+alt+F2 bring me to the command line. I checked /etc/X11/xorg.conf to change the driver to vesa, to find out my video card isn't even shown. I ran lspci and I found that it says my graphics card is Intel Corporation 82810E DC-133 (CGC) Chipset graphics controller (rev3) In the device section of xorg.conf, it merly says Identifier"Configured Video Device"
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Jul 6, 2010
I have a set of vm's with stable, testing, and sid to keep track of how things are going. When I did an apt-get dist-upgrade with squeeze last week, things seemed to OK (350 package updates) until the end. It didn't seem to like and / or was confused by a kernel dependency.
I am not too concerned yet. Because these are in vm's, I do a snapshot before any significant change. I can futz around with impunity because I have that backup.
I re-booted, and tried the apt-get dist-upgrade again with same results. I think I also tried apt-get -f install.
So I reverted to the snapshot, and will simply try again in the future. I recall that with lenny as testing, the font-desktop was really screwed up for about a period of 6 weeks.
However, just in case someone else runs into this:
1) a re-boot worked, but the failure of apt-get made me nervous enough to revert.
2) waiting for corrections has seemed to work in the past (with a single exception with a 4-disk SCSI software RAID10 update that failed to re-boot lenny successfully after what seemed to be a minor update -- that was on a real system, not a vm. I haven't gotten back to look at that.)
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Oct 26, 2010
What is the real difference between system calls and normal function calls. Ultimately function calls too would be passed to kernel for some or the other work.
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Aug 20, 2010
is it save to install linux kernel 2.6.35.2 on Debian Lenny 5.0.5 or stick with automatic updates...
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Dec 7, 2010
On Lenny, due to some compatibility issues: kernels before 2.6.26 don't recognize part of my vaio laptop's hardware, while the last drivers of my videocard (version: 260, card: nvidia gt 230m) suffer some incompatibility problem (this is one of the most problematic computers I ever had), so I have to use version 256, which doesn't work with kernels after (perhaps) 2.6.32. So, I suppose I have to check each kernel between that two versions and hope that one of them will be ok. I searched quite deeply over the net but didn't find anything related to debian, except for generic kernels [URL], but as someone told me that it's better if I only install stuff from the stable repository or backports. What can I do? Is there any backports archive or something like that? Otherwise, what should I do?
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Jul 9, 2015
I recently bought an AMD R7 360 videocard and I'd like to use the free Radeon driver.
Problem is, PCI-ID 0x665f is not present in Jessie's 3.16 kernel sources. The hardware however is supported, it's just not recognized. So I'll have to get the Debain sources and patch include/drm/drm_pciids.h
From the 4.1rc1 kernel I know what to patch and where.
Debian page that explains how to use the Debian build system for recompiling the current kernel from Debian packages?
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Jul 26, 2015
Upgraded Wheezy to Jessie, by changing my apt sources to point at stable instead of wheezy. Ran upgrade, and dist-upgrade, all fine etc.
Then tried to update the kernel by installing linux-image-amd64 package .. seemed to work fine, but after a reboot my kernel version still says 3.10.23
What have I missed?
Code: Select allroot@hostname:~# apt-cache search linux-image
linux-headers-3.16.0-4-amd64 - Header files for Linux 3.16.0-4-amd64
linux-image-3.16.0-4-amd64 - Linux 3.16 for 64-bit PCs
linux-image-3.16.0-4-amd64-dbg - Debugging symbols for Linux 3.16.0-4-amd64
linux-image-amd64 - Linux for 64-bit PCs (meta-package)
[Code] .....
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Sep 24, 2015
I have a MyBookLive where i installed a Debian 2.6 kernel. The system is running fine so far. Because of an error message when apt-get upgrade (udev) i tried to upgrade to 3.16. Here's what i did:
- apt-get install linux-image-xx
- apt-get install linux-source-xx
- extract the source
- copied the old .config from running 2.6 kernel over to the 3.16 directory
- make oldconfig
- make uImage
- make modules
- make modules_install
- copied uImage to /boot
No error messages because its a headless device - its just not booting up.
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Apr 12, 2010
I was wondering if anyone can assist me. I am looking to build a server with Debian as the host. When I installed Debian (Squeeze) the default kernel was "2.6.32-3-trunk-amd64". When I tried to install 'Virtualbox' application, I got a failure because I didn't have the 'kernel-headers' installed on my machine. I noticed there are no specific header package the 'trunk' kernel I was using. I have a few questions so I guess I should begin:
Is it safe to remove the 'trunk' kernel and boot my system on just the regular 2.6.32-3-amd64 kernel? Is this OK or not recommended? Please explain whatever is the correct answer. This is my 1st time using a 'Trunk' kernel so I don't know the in's and out's of it.
If I am using Debian 'Testing' for virtualization via 'Vbox', is there a specific kernel I "should" be using?
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Sep 10, 2010
I have maked a new kernel (version is 2.6.24.7) in debian system which kernel is 2.6.26, and then when i start the new kernel which is 2.6.24.7, it tells me that:
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Sep 10, 2010
My girlfriend got a 'new' (second hand) laptop, a HP Compaq 6715s. When I tried to install Debian on it, the install went immensely slow - glacial, even. It was a very minimal install but it tooks hours to get to nowhere.
I found out online that this was because of a problem between the current kernel and the hard drive (or HD bus, something hardware-y to do with the disk) which meant file operations were extremely slow. I thought "easy, patiently install Debian and then install newer kernel". Except that after six hours, the install wasn't even halfway.
So I install Arch Linux with the 2.6.35 kernel: no problems with the drive speed at all. After a lot of researching (I only played around with Arch once, more than a year ago) I got the system into a usable state. But now wlan0 has suddenly disappeared, together with some other problems - and a usable laptop wasn't exactly what I had in mind, it was supposed to be awesome (or at least good). Which, with Debian, it would be
So... is it possible to make a Debian installation use a later version of a kernel? I'd want to install Debian with the 2.6.35 kernel, not install Debian and then afterwards update the kernel (because I don't have 24 hours to install an OS, if it'll ever even install).
I've found some stuff online but it might well have been written in the Cyrillic alphabet. All I understand, I think, is that in theory it's possible.
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Oct 21, 2010
I installed Debian Squeeze from a net install to a raid 1 array. I have been having a lot of troubles related to being able to write to one or more of the mounted drives - even touch gives me errors.
The most interesting line from dmesg is:
Here is the full output from dmesg:
I found a thread that indicated that this bug was fixed in the next kernel version: 2.6.32-6. I am willing to upgrade the kernel to get rid of my problems. Is a squeeze kernel at 2.6.32-6 or higher available? If so, where? I have not compiled my own kernel, and am not very interested in getting into that.
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