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Search found 409 results on 17 pages for 'brightness'.

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• Error from sudo update-grub

  - by Jim

  I've installed Ubuntu 13.10 on a Lenovo yoga 13. In order to make the backlight work with the keys I've been following some instructions here: How do I get the brightness control working on a Lenovo Yoga 13? The process asks me to run update-grub, but this causes the following error: /usr/sbin/grub-mkconfig: 27: /etc/default/grub: want: not found Which doesn't seem to come up hardly anywhere on Google - which is me pretty much stumped when it comes to grub!

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• Make sudoers work with only certain parameter?

  - by Evan

  I'm trying to make my sudoers file allow a user to adjust the backlight without having to enter in the password. This is what I have: # User alias specification Cmnd_Alias ADJBL = /usr/bin/su -c "echo 150 >/sys/class/backlight/intel_backlight/brightness" # For our user.. ouruser HOME=(root) NOPASSWD:ADJBL .. but it doesn't seem to be working, I still get prompted for the password when I try and run that command with sudo. Apparently there is something I'm missing here, any ideas?

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• What is the laptop that FULLY compatible with Ubuntu?

  - by user63187

  i have met alot of problems with all ubuntu releases on my current laptop (DELL inspiron N4030), such as: out loud fan low battery life screen brightness returns to maximum after every startup weak support for my VGA (Mobility Radeon HD 5430 Series ATI card) ubuntu is probably not scaling my processors correctly sometimes ubuntu hangs after return from suspend sometimes ubuntu doesn't shutdown correctly Now, it's time to change my laptop for good, Can you HELP me to choose a laptop that FULLY compatible with ubuntu releases, please notice that Not every laptop are available in libyan markets.

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• How can I enable special Fn-Keys on my on lenovo s206 (e.g. touchpad on/off)?

  - by user2546783

  I can turn the touchpad off in the mouse settings, but two things won't work: The "disable while typing" option The standard on/off button for the touch pad won't work (it's the one with the little touchpad symbol crossed off, on the F6 key). I've tried any of the following combinations: Alt+F6 Fn+F6 Ctrl+F6 Super+F6 Shift+F6. Almost all the other keys of that kind work, like brightness control, volume control, Wifi toggle, but this one and the mic off and camera off won't work.

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• A crowded Extra-Solar system

  - by TATWORTH

  The orbiting Kepler telescope has found another unusual alien solar system. The Kepler telescope monitors star for changes in their brightness. The light resulting curves can be seen at http://www.planethunters.org.Recently an extra-solar system with 4 stars (planets orbiting two of the stars with the other two stars orbiting as a distant binary pair) was discovered using by two "arm-chair" astronomers using the above web site. Source SPACE.com: All about our solar system, outer space and exploration

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• After update to Windows 8.1 brigthness isn't working (changing)

  - by Bibo

  I just update my Windows 8 to Windows 8.1 by Windows Store and I have some problems. My notebook is Acer Aspire Timelinex 3820TG and I know it's little old for Windows 8 but I install them and works fine (I updated my HDD to SSD). Now I just updated Windows and I have problem with changing brightness on my dedicated graphic card (Ati HD 5650). First I can changing brigthness with fn + keys but It just changing level in OS. No change in real. I tried reinstall drivers, install drivers for my card from Acer with compatibility to Windows 7 and without change. When I switch to integrated card changing brightness works. I think the problem is with drivers but I don't know how to get it working. Thanks for help Bonus question: I have another problem (but this one is not so important). Does anyone knows what msietxghh.exe is doing? Everytime when my system runs (after update) I get message that this program stops working but I just cancel and looks everything works fine.

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• In a digital photo, how can I detect if a mountain is obscured by clouds?

  - by Gavin Brock

  The problem I have a collection of digital photos of a mountain in Japan. However the mountain is often obscured by clouds or fog. What techniques can I use to detect that the mountain is visible in the image? I am currently using Perl with the Imager module, but open to alternatives. All the images are taken from the exact same position - these are some samples. My naïve solution I started by taking several horizontal pixel samples of the mountain cone and comparing the brightness values to other samples from the sky. This worked well for differentiating good image 1 and bad image 2. However in the autumn it snowed and the mountain became brighter than the sky, like image 3, and my simple brightness test started to fail. Image 4 is an example of an edge case. I would classify this as a good image since some of the mountain is clearly visible. UPDATE 1 Thank you for the suggestions - I am happy you all vastly over-estimated my competence. Based on the answers, I have started trying the ImageMagick edge-detect transform, which gives me a much simpler image to analyze. convert sample.jpg -edge 1 edge.jpg I assume I should use some kind of masking to get rid of the trees and most of the clouds. Once I have the masked image, what is the best way to compare the similarity to a 'good' image? I guess the "compare" command suited for this job? How do I get a numeric 'similarity' value from this?

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• changing the intensity of lighten/darken on bitmaps using PorterDuffXfermode in the Android Paint class

  - by user1116836

  Ok my orignal question has changed. How do i change the intensity of how something like this is effected? DayToNight.setXfermode(new PorterDuffXfermode(Mode.DST_IN)); in my dream world it would have worked like this DayToNight.setXfermode(new PorterDuffXfermode(Mode.DST_IN(10))); the 10 being a level of intensity. An example would be if I had a flickering candle, when the candle burns bright I want the bitmaps I am drawing to the screen to retain their origanol color and brightness, when it flickers I want the bitmaps to be almost blacked out, and I want to darken the Bitmaps as the light dims. I have equations, timers and all that figured out, just not how to actually apply it to change the color/brightness. Maybe burning the images is what im looking for? I just want to change the lightness lol. I feel like using paint.setShader might be a solution, but the information in this area is pretty limited from what i have been able to find. Any help would be appreciated. edit: to be crystal clear, i am looking for a way to lighten/darken bitmaps as I draw them to the canvas

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• How do LCD monitors compare to LED monitors?

  - by evan

  I'd love to get this LCD monitor, but I'm wondering if I should hold out until more LED monitors are on the market. I really like the brightness of the 27" iMac monitor and the above monitor is only rated at 5 cd/m2 less than that monitor, but wouldn't a back lit LED monitor appear to be much brighter than an LCD monitor? How do LCD monitors compare to their LED counterparts?

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• How to stop Microsoft IntelliType Pro (itype.exe) from interpreting keys

  - by Asaf R

  Intellitype Pro is a nice software that helps me when I'm using my Ms keyboard. When I'm on the road using my laptop's built-in keyboard it interprets some of the keys incorrectly and reacts on them, for instance the Fn + Down Arrow opens Windows Live Messenger (in addition to lowering brightness, which is governed by Dell's driver). I want to stop Intellitype when I'm on the road and reload it when I'm home using the external keyboard. Note: original problem (conflict with itype) posted here.

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• Where is the "fix" button on Windows 7 Photo Viewer?

  - by Edward Tanguay

  When I click on a photo in Vista I get a fix button: When I click on a photo in Windows 7 I don't get a fix button: I used to use this fix button often to fix red-eye and alter the brightness quickly, and the auto-saving was so fast. If I can't get "Windows Photo Viewer" to do this, I'll have to http://www.irfanview.com again to do this.

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• Turn off backlight without X server commands

  - by Vi

  Fn + F6 - backlight turns off immediately, image stays (visible if shine something at the display) xset dpms force {off,suspend,standby} - backlight turns off slowly, image cleared. How to programmatically just turn off backlight on Acer Extensa 5220 laptop in Linux? It should work fast and should not touch image (unlike xset method). Ideally if I could rapidly switching backlight off and on emulate lower_than_minimum brightness level (ideally - to be hardly visible (but visible) at night).

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• Tiff not displaying correctly on Mac

  - by user348935

  Hi, I have a collection of .tif files but when I open them on my Mac 10.5 they show up as solid black and I don't know why. thanks Upon further inspection at really high brightness there are some out of focus objects viewable. It looks as if I am getting the first couple bits of each pixel but not the entire range of values.

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• Tiff not displaying correctly on Mac OS X

  - by user348935

  I have a collection of .tif files but when I open them on Mac OS X 10.5 they show up as solid black and I don't know why. thanks Upon further inspection at really high brightness there are some out of focus objects viewable. It looks as if I am getting the first couple bits of each pixel but not the entire range of values.

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• its about bright controll

  - by nag

  hi im using vaio- vgn-cr35g....function keys are not working and brightness controll has become a problem , even i m not getting it in more power options,earlier it was there ...can any one help me to overcome the same..........thanku

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• How to filter to runing VLC stream? (FROM CMD)

  - by Ole Jak

  so.. I esely can broadcast my web cam with VLC using command lines like this (I use Windows) "C:\Program Files (x86)\VideoLAN\VLC\vlc.exe" -vvv -I --dshow-vdev="Logitech QuickCam Express / Go" dshow:// --sout When I paste command into CMD and hit enter it starts streaming (all is fine - I can play it) How can I now for example add brightness or any other filter to that stream from CMD?

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• Configuring a monitor's contrast/brightess/colours/etc

  - by DMA57361

  I have recently bought myself a new monitor, now I'd had my previous screen well over 5 years now so I'm looking at this one thinking the picture doesn't quite look right (not bad, just different). Rather than just wait until I'm used to the new picture I'd rather get it fine tuned, then get used to it - so I can reap the maximum benefit. So, can you please suggest reliable ways of configuring an LCD monitor's brightness/contrast/colour/etc to provide the optimum possibly quality image?

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• How to filter running in VLC video stream on commandline?

  - by Ole Jak

  I easily can broadcast my webcam with VLC using command lines like this (I use Windows): "C:\Program Files (x86)\VideoLAN\VLC\vlc.exe" -vvv -I --dshow-vdev="Logitech QuickCam Express / Go" dshow:// --sout When I paste command into CMD and hit enter it starts streaming (all is fine - I can play it). How can I now for example add brightness or any other filter to that stream from the commandline?

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• Configuring a monitor's constract/brightess/colours/etc

  - by DMA57361

  I have recently bought myself a new monitor, now I'd had my previous screen well over 5 years now so I'm looking at this one thinking the picture doesn't quite look right (not bad, just different). Rather than just wait until I'm used to the new picture I'd rather get it fine tuned, then get used to it - so I can reap the maximum benefit. So, can you please suggest reliable ways of configuring an LCD monitor's brightness/contrast/colour/etc to provide the optimum possibly quality image?

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• How to filter runing in VLC video stream? (FROM CMD)

  - by Ole Jak

  so.. I esely can broadcast my web cam with VLC using command lines like this (I use Windows) "C:\Program Files (x86)\VideoLAN\VLC\vlc.exe" -vvv -I --dshow-vdev="Logitech QuickCam Express / Go" dshow:// --sout When I paste command into CMD and hit enter it starts streaming (all is fine - I can play it) How can I now for example add brightness or any other filter to that stream from CMD?

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• Ubuntu is not detecting my LCD properly , how do I fix the problem ?

  - by Nishant

  I want to reduce the brightness of my monitor as per my wish . But ubuntu System-Prefernce-Monitor doesn't have options and I think that coz it uses generic drivers . How do I fix this problem ? Model is Acer One Zg5 , Ubuntu 10.10 OS . Do I load the LCD driver ? I think it has a intel based inbuilt GFX card . /proc/acpi/video/OVGA/LCD$ cat * device_id: 0x0400 type: UNKNOWN known by bios: no state: 0x1d query: 0x00

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• How to filter running in VLC video stream on commandline?

  - by Rais

  I easily can broadcast my webcam with VLC using command lines like this (I use Windows): "C:\Program Files (x86)\VideoLAN\VLC\vlc.exe" -vvv -I --dshow-vdev="Logitech QuickCam Express / Go" dshow:// --sout When I paste command into CMD and hit enter it starts streaming (all is fine - I can play it). How can I now for example add brightness or any other filter to that stream from the commandline?

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• How do you change the opacity of an image in MS Word 2007?

  - by oo

  I see you can change brightness and contract but is there a way to just change opacity? As I have an image that I want to make the background.

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• DIY Sunrise Alarm Clock Sports a Polished Build and Perfect Time Keeping

  - by Jason Fitzpatrick

  We’ve seen our fair share of sunrise simulators, but by far this one is the most polished build–everything from the atomic clock circuit to the LEDs are all packed cleanly in a frosted acrylic case. Renaud Schleck, the tinker behind the build, describes the guts: This is an alarm clock simulating the sunrise, which means that a few minutes before the alarm goes off, it shines some light whose brightness increases over time. The alarm clock is built around a MSP430G2553 microcontroller compatible with the MSP430 Launchpad from Texas Instrument. It features a DCF77 module which sets the clock automatically through radio waves. How to Factory Reset Your Android Phone or Tablet When It Won’t Boot Our Geek Trivia App for Windows 8 is Now Available Everywhere How To Boot Your Android Phone or Tablet Into Safe Mode

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• Ubuntu 11.10 on MacBook Air 2011 - problems with drivers

  - by RankoR

  I had just installed Ubuntu 11.10 on my MacBook Air, and have a lot of problems. I used this tutorial, after executing script and rebooting some problems were solved, but now I have completely not working touchpad, keyboard & screen backlight works incorrect (screen brightness is not 100%, but it is 100% in settings, keyboard backlight turns on/off randomly). How to fix it? P. S. Script said that it's no such file or directory for some .icc file. Google says, that I should copy it from Mac OS X drive, but I completely replaced it with Ubuntu.

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