Debian Configuration :: Annoying Screen Artifacts Are Permanently Appearing?
Feb 4, 2010
every now and then there appear ugly artefacts on my screen. Until yesterday it happened every five to ten minutes; now it happens every few seconds. It is no fun to work with such a system, it is extremely annoying... The artefacts remember me on the artefacts you had 20 years ago when you overwrote an analog VHS-cassette a hundred times, except that the screen looks perfect between the moments the ugly artefacts are present. My notebook is a cheap Acer Extensa 5230E, exact specifications is being made public by my vendor: [URL]
user@host:~$ uname -r
2.6.32-trunk-686
(the same problem with the old kernel 2.6.30)
Here is some /var/log/messages output that might be useful:
Feb 4 04:27:17 host_system kernel: [ 233.292624] tg3 0000:02:00.0: PME# enabled
Feb 4 04:27:17 host_system kernel: [ 233.292633] tg3 0000:02:00.0: wake-up capability enabled by ACPI
Feb 4 04:27:32 host_system kernel: [ 248.387813] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[code].....
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Mar 12, 2011
I installed Debian 6 last night on an older Compaq. For the system to properly reboot and shutdown when requested, both acpi=force and reboot=warm must be in the boot parameters, this was required with other Linux distros installed on this hardware. Otherwise, the system erroneously shuts down when reboot is chosen.
I would like to know how to permanently add these so they pass each time the system is turned on.
I already added these to /etc/default/grub (and ran update-grub afterwards) and at the next startup, noticed they were NOT in the parameters when "e" was pressed at the boot menu.
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Apr 3, 2011
So from a web server stand point if we start using swap for httpd or mysql its bad and performance goes down the drain. So would it be a good or bad idea to disable swap entirely?
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Jul 31, 2011
my thinkpad Edge 11 has some problems with the touchpad and the trackpoint, so i want to permanently disable the touchpad, but not the TrackPoint. Both are PS2 devices.
/dev/input/mouse0 --> TouchPad
/dev/input/mouse1 --> TrackPoint
How can i disable the device? In X it does not work with gpointing-device-settings
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Oct 1, 2010
I recently got an upgrade from my mobile broadband provider (3 UK) that included a ZTE MF112 modem. I found that (unlike the Hauwei modem that preceeded it) this item did not work "out of the box". After a bit of googling around I decided that a good starting place would be to upgrade the OS on my laptop. I've been meaning to do this for a while anyway so have just installed Squeeze (the i386 version, on Thinkpad x61). I think it's now pretty close to working "out of the box" but annoyingly isn't quite there. I thought of getting a ZTE modem to work say that usb-modeswitch needs to be used to make it not load as a cdrom. However, it appears to load correctly without any alteration (in fact, adding the /etc/udev/rules.d/zte_eject.rules file I have found described appear to do the reverse and make it load as a storage device - at least an icon for it appears on screen).
lsusb correctly lists it as device 19d2:0031 and identifies the device as a ZTE MF636 (though it says MF112 on the package). Looking at the Network Connections tool there is an entry for 3 mobile that is, afaik, correctly configured. If I click on the network applet on the toolbar, there is a bit of contradiction: towards the top of the drop-down list it reports mobile broadband as not enabled, but further down under the "available" list is an entry for "3 internet". I haven't paid too much attention to the not enabled entry because it also reports the wired network as not managed, so maybe this is just a quirk of network manager. - I know you have to comment out eth0 entries in /etc/network/interfaces to have network manager deal with the interface in Squeeze. There are no entries for the mobile connection in the interfaces file.
If I click on the 3 internet entry the applet goes momentarily into trying to connect mode (the circling dot) but very quickly pops up a Disconnected box, and that's all that ever happens. I note that the light on the modem stays permanently red. On the old Huwei it started green but went blue, and I think I read something about it also changing colour on the ZTE. On the other hand, the Hauwei didn't show up on the network manager list until the light had turned blue, whereas this does seem to be there. It looks as if the problem is something fairly trivial since the device appears to be both recognised and (almost!) correctly configured. How to sort this.
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May 31, 2015
I recently installed Debian 8 with the Xfce Desktop Environment, which uses the Lightdm gtk greeter as its login manager. My login screen at the moment looks something like this: [URL] ..... In particular, I still have the "grey person" as the default user avatar.
I have been unsuccessfully attempting to change my personal login avatar, following the advice on the Arch Linux wiki: [URL] .... I began by naming my desired avatar .face and saving it in my home directory. That didn't work, but I was not discouraged because the wiki mentioned that there were issues with the ".icon method". So I then installed accountservice, created a directory for my user, and saved my desired avatar as a 96x96 PNG named username.png in the appropriate directory (making sure that it had the necessary permissions, of course). That didn't work either...
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Sep 19, 2010
When the VirtualBox guest OS (WinXP) is started, the other desktop screens behave strangely.
It is difficult to describe how the issue looks like. Therefore, I have made a screenshot.
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Jan 25, 2011
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May 1, 2010
I have a problem with Plymouth. It works pretty well on low res, but on higher resolution some strange video artefacts appear - see attachments.
I use ATI proprietary drivers, if it has something to do with it.
The resolution is set in /etc/default/grub like this:
Code:
GRUB_GFXMODE=1024x768
GRUB_GFXPAYLOAD_LINUX=1024x768x32
edit: reducing colour depth doesn't help /end edit
I don't know whether it has anything to do with the current problem, but Plymouth used not to appear at all until I followed these instructions (or actually I took them from another thread but I can't find it at the moment and these are the same).
I don't know whether it's possible to take them during booting so I've taken these photos with a mobile and retouched in gimp to remove reflections (more or less), and since I'm no pro photographer nor photoshop/gimp master they look as they look. They should do to demonstrate the problem, though.
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Oct 17, 2010
I'm using squeeze as desktop on C2Duo 3Gb ram, nvidia 9400 512 Mb. I've installed proprietary driver and configured xorg long ago, but now very often I see artefacts on desktop after i close a programm, i.e. as if some of the parts of window or text still remain on the desktop after i close the window. I use gnome as my de, dunno what's happened.
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Feb 20, 2011
recently i installed ubuntu (gnome) 10.10. i'm lovin it but only thing is bugging me is this annoying noise whenever i try to see a video on web or using vlc. i m using dell inspiron 6400. IT has VGA compatible controller: ATI Technologies Inc Radeon Mobility X1400 My glxinfo outcome is :
HTML Code:
name of display: :0.0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: SGI
[code]...
now my main problem is whenever i change my visual settings from none to extra , i start getting noise on my usb headphone or even on my speakers especially if i play a video on full screen mode it become worse .. it starts constantly makeing buzzing noise. sometimes even when i minimize or maximize or scroll up down a window...
if i put the visual effects in normal mode i still get the noise on video playing full-screen mood but this is time bit low and on none mode i get the noise too but very low... so i m assuming there must be some problem with my vga card which is causing this chaos. unfortunately there is no driver for my graphics card dat ati supports on ubuntu, so i used gallium 3d project using this ppa https://launchpad.net/~xorg-edgers/+archive/radeon .. graphics works fine now but this nosie is killing me ..
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After starting an X session, I can use Code: Select allxset b off to disable most annoying beeps. But, despite rmmod pcspkr
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Oct 9, 2010
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Code:
fakeroot make-kpkg --initrd --append-to-version=-cpupmopt kernel_image kernel_headers
error log:
Code:
< ... snip ...>
H16TOFW firmware/edgeport/down.fw
[Code]...
EDIT: since this is debian specific and i used make -j5 etc. for # of jobs in other distros, is there an option on make-kpkg for that? && any chance for resuming?
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Jun 8, 2010
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Apr 22, 2010
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Oct 11, 2010
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Jun 8, 2010
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When I worked in MS-DOS, I had (made) a program that reinitialized the 6845 CRT controller, fixing this problem (for this could also happen under that O.S.). But, if there is a solution for MS-DOS, all the more so there must be one under unix/linux.
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