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ASUS N550JX - how to turn OFF keyboard backlight
"Computer Nerd Kev" wrote in message ... In comp.sys.laptops Adam wrote: Thanks (Guru Paul), but Fn+F3 acts more like a dimmer and is not permanent. I tried that before looking through the BIOS for a way to disable keyboard backlight permanently. For aluminum exterior, keyboard backlight is awful. Keyboard backlight settings can sometimes be changed when running Linux from the system settings (I was going to say in the /proc/acpi directory, but things seem to have moved on). Here's a forum thread where an ASUS laptop user wants to disable the keyboard backlight in Ubuntu: http://askubuntu.com/questions/74585...p-ubuntu-15-10 Here's some detailed information for Arch Linux about changing keyboard light brightness on another ASUS laptop: https://wiki.archlinux.org/index.php...oard_backlight -- __ __ #_ |\| | _# Thanks, yes, in linux, there's practically nothing you cannot configure. I was hoping for a simple "works for ANY OS" solution after learning about... /sys/class/leds/asus::kbd_backlight/ https://help.ubuntu.com/community/As...olume.2C....29 |
#12
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ASUS N550JX - how to turn OFF keyboard backlight
Adam wrote:
"Computer Nerd Kev" wrote in message ... In comp.sys.laptops Adam wrote: Thanks (Guru Paul), but Fn+F3 acts more like a dimmer and is not permanent. I tried that before looking through the BIOS for a way to disable keyboard backlight permanently. For aluminum exterior, keyboard backlight is awful. Keyboard backlight settings can sometimes be changed when running Linux from the system settings (I was going to say in the /proc/acpi directory, but things seem to have moved on). Here's a forum thread where an ASUS laptop user wants to disable the keyboard backlight in Ubuntu: http://askubuntu.com/questions/74585...p-ubuntu-15-10 Here's some detailed information for Arch Linux about changing keyboard light brightness on another ASUS laptop: https://wiki.archlinux.org/index.php...oard_backlight -- __ __ #_ |\| | _# Thanks, yes, in linux, there's practically nothing you cannot configure. I was hoping for a simple "works for ANY OS" solution after learning about... /sys/class/leds/asus::kbd_backlight/ https://help.ubuntu.com/community/As...olume.2C....29 In that article, is one keyword that stands out - "Powertop". It's not that PowerTop has a control for the keyboard backlight. It's that PowerTop is supposed to adjust machines for lowest power consumption. If you had an OS release that seemed to burn through a battery rapidly, PowerTop can advise as to what is going on. My *theory* would be, a keyboard backlight is a waste of electricity, and it may be detected as such in the ACPI tables. And perhaps PowerTop can find a way to turn it off or something - so PowerTop wouldn't give you graded controls, it potentially might turn it off. It's also possible PowerTop cannot see this, unless the boot option "acpi_osi=" thing was added. Other than that, you'll need to get your hands dirty, to get it to work (i.e. next time there is an OS upgrade, you might have to re-implement whatever fix you end up using). Paul |
#13
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ASUS N550JX - how to turn OFF keyboard backlight
"Paul" wrote in message ... Adam wrote: "Computer Nerd Kev" wrote in message ... In comp.sys.laptops Adam wrote: Thanks (Guru Paul), but Fn+F3 acts more like a dimmer and is not permanent. I tried that before looking through the BIOS for a way to disable keyboard backlight permanently. For aluminum exterior, keyboard backlight is awful. Keyboard backlight settings can sometimes be changed when running Linux from the system settings (I was going to say in the /proc/acpi directory, but things seem to have moved on). Here's a forum thread where an ASUS laptop user wants to disable the keyboard backlight in Ubuntu: http://askubuntu.com/questions/74585...p-ubuntu-15-10 Here's some detailed information for Arch Linux about changing keyboard light brightness on another ASUS laptop: https://wiki.archlinux.org/index.php...oard_backlight -- __ __ #_ |\| | _# Thanks, yes, in linux, there's practically nothing you cannot configure. I was hoping for a simple "works for ANY OS" solution after learning about... /sys/class/leds/asus::kbd_backlight/ https://help.ubuntu.com/community/As...olume.2C....29 In that article, is one keyword that stands out - "Powertop". It's not that PowerTop has a control for the keyboard backlight. It's that PowerTop is supposed to adjust machines for lowest power consumption. If you had an OS release that seemed to burn through a battery rapidly, PowerTop can advise as to what is going on. My *theory* would be, a keyboard backlight is a waste of electricity, and it may be detected as such in the ACPI tables. And perhaps PowerTop can find a way to turn it off or something - so PowerTop wouldn't give you graded controls, it potentially might turn it off. Aren't LEDs very-very low power? Couldn't some nice BIOS engineer just add an option to disable keyboard backlight? :-) It's also possible PowerTop cannot see this, unless the boot option "acpi_osi=" thing was added. Other than that, you'll need to get your hands dirty, to get it to work (i.e. next time there is an OS upgrade, you might have to re-implement whatever fix you end up using). Paul |
#14
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ASUS N550JX - how to turn OFF keyboard backlight
Adam wrote:
Aren't LEDs very-very low power? You will never be a successful Power Miser engineer with thinking like this. Every milliamp counts when you're making the laptop battery last four hours. No saving is too small. Couldn't some nice BIOS engineer just add an option to disable keyboard backlight? :-) Two parties are involved in the BIOS. Companies like AMI, Award, Phoenix, Insyde, write basic BIOS kits for hardware development. Presumably there is a per-unit license fee, when the BIOS ships. Some of the lesser hardware companies, put in their literature "licensed BIOS" to highlight the fact they actually paid the license fee :-) At one time, there were companies that released a BIOS with their product, where they didn't actually have the rights to it. At one time, there was even a no-name manufacturer making fake Asus motherboards :-) And the BIOS on those wasn't licensed. The whole thing was cloned. Asus or Gigabyte or HP or Dell, they can write their own custom BIOS code if they want. But normally this is a small small fraction of the code base. And when AMI, Award, Phoenix, Insyde release a kit, they don't necessarily give source. If they did, unscrupulous hardware companies could go off and do derivative works without paying any fees. As a result, some BIOS bugs are "hard" to fix, as the BIOS companies themselves release the bug fix. Other bug fixes, Asus can implement them immediately (tuning DIMM timings for stable operation, adding CPU microcode for newer released Intel processors). So it's a team effort. The BIOS "kit" has multiple settings. Asus can hide and unhide settings in the screen. The older the BIOS company is, the more ornate the BIOS screens. The newer companies have practically no interface at all in theirs. And it really isn't needed. That's why my Insyde BIOS laptop, has a grand total of *one* setting :-) You need a big screen layout, to handle that baby. Paul |
#15
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ASUS N550JX - how to turn OFF keyboard backlight
"Paul" wrote in message ... Adam wrote: Aren't LEDs very-very low power? You will never be a successful Power Miser engineer with thinking like this. Every milliamp counts when you're making the laptop battery last four hours. No saving is too small. Couldn't some nice BIOS engineer just add an option to disable keyboard backlight? :-) Two parties are involved in the BIOS. Companies like AMI, Award, Phoenix, Insyde, write basic BIOS kits for hardware development. Presumably there is a per-unit license fee, when the BIOS ships. Some of the lesser hardware companies, put in their literature "licensed BIOS" to highlight the fact they actually paid the license fee :-) At one time, there were companies that released a BIOS with their product, where they didn't actually have the rights to it. At one time, there was even a no-name manufacturer making fake Asus motherboards :-) And the BIOS on those wasn't licensed. The whole thing was cloned. Asus or Gigabyte or HP or Dell, they can write their own custom BIOS code if they want. But normally this is a small small fraction of the code base. And when AMI, Award, Phoenix, Insyde release a kit, they don't necessarily give source. If they did, unscrupulous hardware companies could go off and do derivative works without paying any fees. As a result, some BIOS bugs are "hard" to fix, as the BIOS companies themselves release the bug fix. Other bug fixes, Asus can implement them immediately (tuning DIMM timings for stable operation, adding CPU microcode for newer released Intel processors). So it's a team effort. The BIOS "kit" has multiple settings. Asus can hide and unhide settings in the screen. The older the Hopefully, the keyboard backlight setting is already in the BIOS "kit" and it's easy for Asus to unhide the setting. With the keyboard backlight ON, there is insufficient contrast so I can't tell what the keys are. For now, the easiest method may be through... /sys/class/leds/asus::kbd_backlight/ https://help.ubuntu.com/community/AsusZenbookPrime BIOS company is, the more ornate the BIOS screens. The newer companies have practically no interface at all in theirs. And it really isn't needed. That's why my Insyde BIOS laptop, has a grand total of *one* setting :-) You need a big screen layout, to handle that baby. Paul |
#16
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ASUS N550JX - how to turn OFF keyboard backlight
Adam wrote this copyrighted missive and expects royalties:
"Paul" wrote in message ... Adam wrote: "jrg" wrote in message ... On 04/23/2016 11:23 AM, Adam wrote: Is there a way to turn OFF keyboard backlight from BIOS ? what BIOS?? Yes, I wish there were a way to turn OFF keyboard backlight from the BIOS... https://en.wikipedia.org/wiki/BIOS Aptio Setup Utility BIOS Vendor: American Megatrends Version: 205 Looked through the BIOS, but wasn't able to find a way. Not documented in the fine PDF manual. Documented in a FAQ entry (and given the generic nature of all the items in the FAQ, probably not verified on this model of laptop either). https://www.asus.com/us/support/FAQ/1014790/ "Check the F3 and F4 key for any backlight keyboard symbols. Enable the the backlight by pressing Fn and F4 at the same time (Fn+F4)" A guess would be (Fn+F3) to turn off, (Fn+F4) to turn on. Thanks (Guru Paul), but Fn+F3 acts more like a dimmer and is not permanent. I tried that before looking through the BIOS for a way to disable keyboard backlight permanently. For aluminum exterior, keyboard backlight is awful. My ASUS N551JQ powers up with the backlight off. The backlight keys work fine (Debian Sid; but other keys I've had to bind little scripts to 'em). I would warn you that the key logos start to wear out amazingly quickly. I would advise some kind of key covering if you start noticing the wear. I waited too long, and now I have about 10 keys covered with opaque sticks, which hold up to wear much better than the keys themselves. It also has the ****ty "one-button" trackpads that seem to be all the rage these days. No buttons, just one surface, with a painted on line to remind you about the ability to left and right clock. No way to get a middle-click. No more ASUS for me. -- You're definitely on their list. The question to ask next is what list it is. |
#17
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ASUS N550JX - how to turn OFF keyboard backlight
"Chris Ahlstrom" wrote in message ... Adam wrote this copyrighted missive and expects royalties: "Paul" wrote in message ... Adam wrote: "jrg" wrote in message ... On 04/23/2016 11:23 AM, Adam wrote: Is there a way to turn OFF keyboard backlight from BIOS ? what BIOS?? Yes, I wish there were a way to turn OFF keyboard backlight from the BIOS... https://en.wikipedia.org/wiki/BIOS Aptio Setup Utility BIOS Vendor: American Megatrends Version: 205 Looked through the BIOS, but wasn't able to find a way. Not documented in the fine PDF manual. Documented in a FAQ entry (and given the generic nature of all the items in the FAQ, probably not verified on this model of laptop either). https://www.asus.com/us/support/FAQ/1014790/ "Check the F3 and F4 key for any backlight keyboard symbols. Enable the the backlight by pressing Fn and F4 at the same time (Fn+F4)" A guess would be (Fn+F3) to turn off, (Fn+F4) to turn on. Thanks (Guru Paul), but Fn+F3 acts more like a dimmer and is not permanent. I tried that before looking through the BIOS for a way to disable keyboard backlight permanently. For aluminum exterior, keyboard backlight is awful. My ASUS N551JQ powers up with the backlight off. The backlight keys work fine (Debian Sid; but other keys I've had to bind little scripts to 'em). Why isn't there a system setting to OFF keyboard backlight? :-) I would warn you that the key logos start to wear out amazingly quickly. I would advise some kind of key covering if you start noticing the wear. I waited too long, and now I have about 10 keys covered with opaque sticks, which hold up to wear much better than the keys themselves. Thanks, I better attach an external keyboard and mouse to mine as soon as I'm done setting it up. So, I guess I can forget about even the keyboard backlight. I'll just be annoyed on occasions when I need to take the heavy laptop on the road. It also has the ****ty "one-button" trackpads that seem to be all the rage these days. No buttons, just one surface, with a painted on line to remind you about the ability to left and right clock. No way to get a middle-click. No more ASUS for me. I was happy with my old laptop (from September 2010, which still works great)... ASUS N61JQ-X1 16-Inch Laptop (1.6 GHz Intel Core i7-720QM Quad-Core Processor, 4GB DDR3, 320GB HDD, Windows 7 Home Premium) Dark Brown But, this new laptop... ASUS N550JX-TH72T Gaming Laptop - Intel Core i7 4720HQ 2.6GHz Quad-Core, 16GB DDR3, 1TB HDD, NVIDIA GeForce GTX 950M 2GB DDR3, 15.6" FHD Display, Windows 10 64-Bit - N550JX-TH72T was on rebate at a good price so I bought it to maybe replace my desktop for energy efficiency. I prefer the exterior of my old laptop. ASUS should stick with what they do best, which is build quality electronics rather than to imitate the aluminum exterior. -- You're definitely on their list. The question to ask next is what list it is. |
#18
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ASUS N550JX - how to turn OFF keyboard backlight
Op 23-04-16 om 20:23 schreef Adam:
Is there a way to turn OFF keyboard backlight from BIOS ? No. I've read the various ideas in this thread but miss one. There's a video on Youtube that shows the workings of the screen: https://www.youtube.com/watch?v=b6dZ4TCJncY This means the setting of the backlight is saved as part of the desktop restore. That's obviously for Windows. But chance is your Linux DE can do the same, is your system set up to restore the last DE configuration? |
#19
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ASUS N550JX - how to turn OFF keyboard backlight
In comp.sys.laptops Adam wrote:
Aren't LEDs very-very low power? Compared to your old filament light bulb, yes. Compared to most digital electronics they use a lot of power. Presumably some clever design has gone into the LED backlight to allow them to illuminate every key with either a small number of individual LEDs, or lots of high brightness LEDs running far under their rated power. Then the electronics will be designed to supply this power as efficiently as possible. But in any case I expect the power consumption would be noteworthy. I liked the single LED keyboard light on IBM Thinkpads. Very simple, but able to make the keyboard labels nicely visible in the dark (as long as you can find the keys to turn it on ). Couldn't some nice BIOS engineer just add an option to disable keyboard backlight? :-) Get friendly with one of the Coreboot developers? -- __ __ #_ |\| | _# |
#20
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ASUS N550JX - how to turn OFF keyboard backlight
"Computer Nerd Kev" wrote in message ... In comp.sys.laptops Adam wrote: Aren't LEDs very-very low power? Compared to your old filament light bulb, yes. Compared to most digital electronics they use a lot of power. Presumably some clever design has gone into the LED backlight to allow them to illuminate every key with either a small number of individual LEDs, or lots of high brightness LEDs running far under their rated power. Then the electronics will be designed to supply this power as efficiently as possible. But in any case I expect the power consumption would be noteworthy. Really? No wonder Guru Paul said I wasn't miserly enough. Guess I need to try harder than I already do. :-) Okay, so now I need to educate myself about how to set miserly thresholds in that ACPI table (?) for keyboard backlight so that it will stay OFF. I liked the single LED keyboard light on IBM Thinkpads. Very simple, but able to make the keyboard labels nicely visible in the dark (as long as you can find the keys to turn it on ). Couldn't some nice BIOS engineer just add an option to disable keyboard backlight? :-) Get friendly with one of the Coreboot developers? -- __ __ #_ |\| | _# |
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