Brightness issue in linux mint. Graphics: I am running KDE Linux Mint 9.
Brightness issue in linux mint. Jul 29, 2024 · Hi, I have been using Linux Mint for many years without problems, but a few months ago I bought Laptop LENOVO IdeaPad 5 15IIL05, and I faced a few hardware issues. In this tutorial, we’ll explore different ways to change monitor brightness in Linux. Jul 11, 2024 · If your screen brightness issue is resolved, please go to your first post in this topic, click the pencil icon, and add [SOLVED] to the beginning of the title and submit the revised post so others know you are no longer seeking help on this issue. I'm trying to dual boot it with Debian 12 (Bookworm) KDE Plasma, but I've been struggling with controlling the screen brightness on Linux Quick to answer questions about finding your way around Linux Mint as a new user. Yesterday, I installed Linux Mint 22 (looks great), but this issue already existed on 21. Hello I'm having problems with adjusting my laptop's brightness. I'm running Mint 21. Jan 13, 2022 · If changing brightness is a big issue then maybe an automatic tool could save time and effort. After changing the COLORS in the Firefox preferences you must select " Override the colors specified by the page with your selections above" and select ALWAYS, in order to always have your background black and your text yellow. That will let us know if you are using the correct ISO for your live Nov 30, 2022 · The backlight controls were changing the brightness values for in nvidia_0, but the screen brightness was actually controlled by the brightness values in intel_backlight (while in ON-demand mode). 2 and I have a small but annoying problem my brightness slider is backwards so if I use fn and right arrow key my precent goes up as my screen brightness goes down is there a fix for this or? I have an acer aspire es1-511 also it detects zenfone 2 ptp but not mtp please help Feb 1, 2025 · Hi I have installed LM on a fairly old laptop and it is working very well apart from the fact that I can't adjust the brightness which is always set to 100%. menu, and it is so high brightness that hurts my eyes. I use Mint on a Lenovo IdeaPad L340 and it has a strange screen brightness problem too. In its configuration, I kept all the default settings except to set it to show a slider only for Brightness and to apply every five seconds. Mar 2, 2021 · I recently installed Linux Mint 20. Mar 16, 2024 · It might be a Lenovo problem. I have read a lot of posts about this issue and tried many things but without success so hopefully someone can point me in the right direction. The operating system works apart from the fact I have a serious brightness issue with the screen. Sep 21, 2025 · Keyboard issues - volume & brightness not working by anarchistfish » Sun Sep 21, 2025 4:12 am Greetings! I'm not an entire noob, been using Mint for a few moths now, but downloaded Zara onto a new computer and was surprised that the volume and brightness keys on it are not working. Specially on laptops, as there's no dedicated hardware switch directly connected to the display. 1 on another laptop and there, I can just change my screen brightness using Fn (Function button)+ F1 for "brightness-" and Fn + F2 for "brightness+". 5. Jul 10, 2025 · hello, i installed linux mint cinnamon on a old lenovo laptop today due to windows 10 dying in a few months to come. That will let us know if you are using the correct ISO for your live May 29, 2011 · This guide is to help you get your brightness settings working. There is no straightforward method of increasing brightness (like a slider found in Windows) upon my little digging around the OS. 02 [The Issue] I am unable to dim the brightness on my computer using the F5-F6 keys or the slider in the battery menu. Mar 24, 2023 · Hi I recently switched from Win11 to Linux mint. Brightness problem Quick to answer questions about finding your way around Linux Mint as a new user. Dec 11, 2021 · Obsolet wrote: ⤴ Sun Dec 05, 2021 3:19 pm Linux is still challenging me. The functions of the F-keys are written on the keys anyway. . I am using kernel version: 6. Sep 28, 2024 · I run Mint Wilma with the Cinnamon desktop on a very simple laptop that has no option on the keyboard to increase or decrease display brightness. There are a couple of methods that can be used to try to fix this. 2 Cinnamon 32-bit v2. Mint 22 on the 6. I am unable to adjust the brightness settings via keyboard or power settings and it appears the brightness settings are missing completely. Feb 26, 2025 · Linux Brightness Issues (SOLVED) by Rajbir » Wed Feb 26, 2025 9:36 pm Brightness Issues Quick to answer questions about finding your way around Linux Mint as a new user. However adjusting screen brightness on Linux could be a bit problematic. In linux mint, what I see in screen is a totally washed colors and very bright panel, even adjusting brightness. But if you want fine-grained control or need to automate brightness changes, the CLI offers powerful options. Jan 30, 2025 · However, some users might experience issues with brightness control not working properly in Ubuntu and Linux Mint. . 2 everything works great except screen brightness I cant change with Fn keys or slider in power manager at moment I downloaded and Applet called Brightness and gamma applet (brightness-and-gamma-applet@cardsurf) that works but wondering is there a way to get it to work the right way like its suppose to? Screen Brightness problem linux mint 13 samsung n145 by alloykick » Mon Mar 25, 2013 5:52 am My problem is I have installed Linux Mint 13 Maya Cinnamon 64bit on a Samsung N145p netbook. Also there should be a key or more likely a combination of keys on your keyboard that controls brightness. That will let us know if you are using the correct ISO for your live Screen Brightness Issue by LinuxNeophyte » Fri Mar 06, 2015 10:18 pm I am running LM 17. Please provide the information requested in Section 5 of READ: How To Get Help!. (animated gif courtesy of user BJZilberman) brightness problem by 4k531 » Fri Aug 09, 2013 6:46 pm Hello I've just installed mint 15 mate 64bits on my mother's notebook and I would like some help please: First of all I can't modify the brightness of the screen, shortcut keys Fn+F8/F9 don't work, brightness setting in the control center doesn't work, and xblacklight doesn't work Aug 17, 2018 · I can't find a Brightness scale in settings. In my case Dec 5, 2021 · Obsolet wrote: ⤴ Sun Dec 05, 2021 3:19 pm Linux is still challenging me. 8 for the kernel solves the issue but that version seems to be outdated and has tons of bugs, also installing a kernel to check if the brightness issue is fixed is too risky for Oct 25, 2022 · I recently bough a Lenovo ThinkBook 16p G2 ACH laptop and freshly installed Linux Mint 21 (Vanessa). 3 it only shows graphically that brightness is reduced but in actual it doesn't change. Normal brightness is simply too bright for me as well. - Reccomended driver doesnt seem to detect the external monitor either way. It won't adjust, whenever I try to turn it down by using the slider on the panel, it'll show it going down or up but it actually doesn't work. Oct 3, 2023 · None of my laptop keys will adjust my display brightness so I installed brightnessctl from the Synaptic Package Manager but where is the application after installation? Dec 5, 2021 · Here comes my most frustrating problem with Live Linux Mint (Cinnamon) 20. Everything is working as expected, except that both the brightness slider and FN keys on my keyboard do not change the brightness at all. Complete starter's guide with simple how-to's. Mar 13, 2024 · It might be a Lenovo problem. Mar 23, 2021 · I have installed the newer version of Linux Mint 20. Jul 13, 2024 · Re: LG gram Brightness Issue by SMG » Sat Jul 13, 2024 7:05 pm imusorka wrote: ⤴ Sat Jul 13, 2024 6:42 pm Unable to adjust brightness. What else can I try? Please provide the output of a live session of Mint 22 so we can see whether or not the graphics driver has loaded. I have no control over my screen brightness, it seems to be stuck at 100%. On my laptops I had the ability to change brightness automatically through a slider provided in power management, but this option has completely disappeared on my PC. Any ideas? My function keys, while they bring up the brightness control Easy tips, tweaks and tricks for Linux Mint and Ubuntu, both for beginners and for advanced users. Installed brightness controller. Any help would be appreciated. 1 on my laptop. Aug 26, 2024 · - 6. 16. Apr 12, 2021 · Hi everybody, I'm a total newbie and just installed Linux Mint on a Toshiba C55-C laptop. My notebook's brightness doesn't work either, can't remember the last time it did - maybe it's the kernel, maybe the driver, maybe some update - but the applet I made beats that simple function. [Have you attempted to fix it?] Jan 30, 2022 · I have recently installed Linux Mint in my windows laptop as a dual boot. 3, because you have very new hardware and should be running the latest version of Linux Mint so you can get the newest kernel so the graphics driver load properly. But I'm having several issues, I solved one, and another issue showed up. In this comprehensive guide, I‘ll cover multiple methods to alter screen backlighting and brightness […] Jun 3, 2025 · Welcome to the forum, cervintine. Mar 22, 2015 · I've recently installed Linux Mint on my Thinkpad T450s. I am running an Asus UX305F with an Intel HD Graphics 5300 card. Graphics: I am running KDE Linux Mint 9. Jan 11, 2023 · Quite an annoyance, I know. Topics in this forum are automatically closed 6 months after creation. 2 I am unable to adjust screen brightness. 12, so what could be the problem specifically with my laptop? This is my first time with any non-Windows OS. I know with my own chip, mint boots in low brightness, but upon login it seems to reverse the brightness setting so that it's back up to full. My problem is I have installed Linux Mint 13 Maya Cinnamon 64bit on a Samsung N145p netbook. 2 Cinnamon, I continued upgrading the packages and installed nvidia-driver-535. When the power cable is attached the screen always resets itself to a glaringly bright maximum brightness setting every time I start, even if I reduce the brightness in the settings or with the function up Jul 4, 2020 · I was able to get it to boot into the laptop display by twiddling around a bit in the BIOS, but now there's a number of other issues -- the resolution is locked at the recommended one, and the backlight brightness controls aren't changing the brightness, which unfortunatrly is locked at the maximum value. much Dimmer than under Ubuntu 10. If anybody knows how to change brightness from GUI, let me know. 1 on my new Thinpad E15. 15. Apr 5, 2021 · Hello, I have just installed Linux Mint version 20. May 13, 2024 · Kernel 6. I'm wondering if the LED backlight is not enabled. now my unsolved matter is my "Brightness settings can't be adjust. php?t=346688 is stated that downloading version 5. That will let us know if you are using the correct ISO for your live Mar 25, 2025 · I'm super new to Linux but have installed Linux Mint Cinnamon Edge onto 2 laptops and have just installed it on my PC after testing it out. I have tried to Google the issue but I did not find any solution. I am using an HP pavilion dv6zse with AMD phenom II quad core and ATI radeon mobility 5xxx video card (using the stock ati driver from the repos). Maybe due to AMD driver needed ? Pls help. 0-119 kernel with open source driver doesn't render to the external monitor well (the output is super glitchy and unintelligible), and has the brightness issue. 04. 0-40 kernel with open source driver is fine, but has the brightness issue - 5. 8. My screen brightness, even at max level, is pretty dim. 2 in combination with HP Elitebook 845 (G3). If you click on it it gives you the option to control the brightness. The laptop is stuck at a brightness of 0, making it impossible to use without an external monitor. Here's the output from neofetch, inxi -Fxxxpmrz and dpkg -l | grep -i nvidia Normal brightness is simply too bright for me as well. I got several downsides like no wifi, low volume etc. But the brightness hotkeys certainly don't function. The Display has a built-in privacy filter (enable/disable by F2). I have already tried fixing the problem with the by adding the lines "acpi_backlight=vendor" in my grub. The key presses show up on the screen like it should do something and the bar moves but the brightness stays at eye bleeding. However if you think your question is a bit stupid, then this is the right place for you to post it. Jan 11, 2023 · Step 2: Fix brightness control issue with Intel card in Ubuntu and Linux Mint: Open a terminal and create the following configuration file, if it does not exist: Oct 14, 2019 · In the lower right hand corner of your screen there should be a power icon that looks like a battery. May 7, 2025 · [SOLVED] Unable to control monitor brightness by Lux64 » Wed May 07, 2025 8:37 pm Aug 6, 2024 · I am new to linux and just installed the latest mint 22. Passing acpi_backlight=vendor to the kernel at boot To try this temporarily, on boot at the grub screen, with the Mint option highlighted, press 'e' on your keyboard. Problem: 1 - The Fn keys for change Brightness don't work 2 - On power management->Brightness->Screen Jul 30, 2025 · I cannot adjust my brightness whatsoever. Mar 10, 2024 · On the latter two, I "solved" the problem by installing the Brightness and Gamma applet. That will let us know if you are using the correct ISO for your live Jul 9, 2015 · OS: Linux Mint 17. Then i updated my grub Dec 29, 2016 · Mint recognizes the keystrokes FN+F8 & FN+F9, it shows the on-screen display of the brightness icon with a bar showing a level on it. I my windows the brightness key works well but here in my Linux Mint 20. For instance on my Lenovo up is the combined function and home buttons, and down is function and end buttons. That will let us know if you are using the correct ISO for your live Obsolet wrote: ⤴ Sun Dec 05, 2021 3:19 pm Linux is still challenging me. And changing the brightness slider in the Power Management options doesn't work. the brightness control is not working and im getting some visual artifacts on mtg arena but its playable. For me, I can adjust the brightness by going into the power management preferences and fiddling with the brightness slider. On Sep 6, 2024 · I've recently purchased an HP Victus gaming laptop (model number: [Victus by HP Gaming Laptop 15-fb0xxx]) with an AMD Ryzen 5 5600H and Nvidia 3050 GPU. This article will dig deep into the possible causes and solutions to fix brightness control issues on these popular Linux distributions. 1. Screen Brightness Issue by LinuxNeophyte » Fri Mar 06, 2015 10:18 pm I am running LM 17. Processor: Intel Atom N450 @ 1. Stick to easy to-the-point questions that you feel people can answer fast. Here comes my most frustrating problem with Live Linux Mint (Cinnamon) 20. When i unplug the charger, the screen gets really dark and i can't change the brightness using the keyboard or the system toggle available with battery icon. Brightness Issues Quick to answer questions about finding your way around Linux Mint as a new user. Please help me. I can adjust brightness and color with it, but the changes revert within 10 seconds Feb 26, 2025 · Linux Brightness Issues (SOLVED) Forum rules Before you post read how to get help. 8 kernel does not help either. With a variety of methods available, including command-line tools and graphical interfaces, we can customize the brightness settings to suit our preferences. 0-38-generic. What can I do to fix this problem? The output Jul 26, 2025 · Good day I've also found this same issue, I did notice it only happened after i updated everything with the update manager, reverting to the base mint install with timeshift restored the brightness bar. 04 and Linux Mint 21. I'm certain that this isn't a hardware issue as I have managed to increase brightness in the past. Any ideas? My function keys, while they bring up the brightness control Jul 25, 2023 · Got an Asus Nitro 5 Laptop running LM 21. It is really hurting my eyes. My laptop has AMD Processor- Ryzen 5 5500U Integrated Graphics Card- AMD Radeon Graphics Card. The brightness is currently stuck somewhere around 50%, so it is usable but I would like to be able to adjust my brightness based on my environment. You cannot adjust brightness or backlight if the driver is not loaded. Since the installation, the screen is too dim and I cannot adjust the brightness, neither using the keyboard nor with the sliding bar in power management. Forum rules There are no such things as "stupid" questions. It is curious, because this high brightness is only in white color or when I have more white in screen, for instance in google chrome config. 0-151 Using the brightness keys on keyboard Using Jul 9, 2023 · Adjusting the brightness of the monitor on Linux is a way to greatly enhance the viewing experience. 50 sets the brightness to 50%. 66GHz x1 Memory: 1GB BIOS: v12. Dec 30, 2019 · Screen brightness adjustment is one of the basic tasks on any computer, and often required. 1 Cinnamon edition on two computers and am having a problem with screen brightness on each of them after the computer comes out of hibernation. I tried all the solutions that I could find here. If the Grub boot Quick to answer questions about finding your way around Linux Mint as a new user. Currently, I'm using dual-boot Windows 11 and Linux Mint. I have been using xrandr to set brightness: xrandr --output LVDS-1 --brightness 0. There are numerous options accessed by using the Fn key (such as increase/decrease volume, start/stop/pause options for a media player, and enter hibernation) but none for display brightness. Apr 22, 2025 · Brightness issue on battery by vnginfo » Tue Apr 22, 2025 11:13 am hello, I just bought a laptop ASUS TUF model : FA706NF-HX005W The CPU is AMD Ryzen 5 7535HS and GPU is NVIDIA RTX 2050. An important thing to note though, is the brightness slider was also missing when I had Sep 22, 2024 · In this video, I will be cover a potential fix for laptops running Linux, that do not allow you to reduce or increase the screen brightness level. 3, so it's not related to the update. Obsolet wrote: ⤴ Sun Dec 05, 2021 3:19 pm Linux is still challenging me. Here is the output of inxi -Fxxxrz if it Mar 29, 2018 · [SOLVED] Unable to adjust screen brightness by sheepdog » Fri Jan 12, 2024 10:38 pm Since upgrading to LM 21. I am running KDE Linux Mint 9. Quick to answer questions about finding your way around Linux Mint as a new user. Mar 31, 2010 · This tutorial should help you try to fix problems with not being able to change your backlight brightness using the Fn keys on your laptop. The brightness button on the keyboard does the same thing. After the computer wakes up, the screen is noticbly darker than it was prior to hibernation. 11 Linux Kernel: v3. Only problem I have is the brightness keys don't work, and the brightness slider in the GUI is just bound to the keyboard backlight. 0-35-generic. Jun 11, 2025 · Controlling the brightness of an HDMI - connected display on Linux Mint can be achieved through various methods, each with its own advantages and disadvantages. Dec 17, 2024 · I'm a complete noob to Linux and recently I've been having problems with controlling brightness as the Brightness and Gamma Applet stopped working for me. I have tried the following: Downgrading kernel to version 5. - When I first installed a fresh Linux Mint 21. It shows brightness at maximum, although the screen is only about 50%. Sep 1, 2023 · This year, I'm interested to try Linux Mint for the first time for my new laptop. Fix Ubuntu and Linux Mint doesn’t remember brightness settings Norbert wrote a script to make Ubuntu and Linux Mint remember the brightness settings at each boot or wake up from sleep. The weird thing is that when I first installed the applet it worked just fine, so I think an update might have caused the problem. Almost on every laptop the brightness up and down keys are combined with another key as a key combination, generally the Fn key. But thankfully we have an easy solution for this brightness issue in Ubuntu and Linux Mint. Any ideas? My function keys, while they bring up the brightness control Aug 26, 2024 · - 6. Tried a couple of commands from internet but no luck. Mar 24, 2025 · Enabling brightness control on Linux Mint with a 3rd-gen Intel CPU (Ivy Bridge) often involves adjusting kernel parameters, as the issue is commonly related to Intel GPU backlight handling. I noticed that I have no way to change the screen brightness : the Fn keys don't work even though there's an OSD slider that indicates a change of brightness without any real effect. Mar 3, 2025 · The brightness slider is there but not working and the brightness is set to full i tried so many commands via terminal ended up in loosing that brightness slider so i reinstalled linux, brightness slider is back but it is not working as earlier. Sep 24, 2023 · I've read the OLED brightness control was added to Linux Kernel 5. Any ideas? My function keys, while they bring up the brightness control 1 I am having a problem reducing the brightness of my screen. 6. I have tried to add "acpi_backlight=vendor Normal brightness is simply too bright for me as well. Could you advise, please. But It seems I got my own problem. If I plug in the battery charger while Mint is running the screen goes almost completely dark. Jan 22, 2025 · Moderator note: Gabe0 's issue and solution can now be found her [SOLVED] Asus Vivobook K6502HE Unresponsive Brightness On Linux Mint 22 Cinnamon because they have a different laptop which is Intel/Nvidia and not AMD/Nvidia like the one in this topic. I am using the Cinnamon display environment. Dec 27, 2023 · Adjusting the brightness of your Linux display is usually a simple settings tweak – just a few clicks or keyboard presses and you‘re done. Hello Mint users today I came back to LInux installing KDE 17. After installing Mint I noticed that the screen was constantly on full brightness and I couldn't change the brightness using the function keys. I am not sure why you are running Linux Mint 21. Is there a way to reduce the screen brightness in Linux Mint? I am using a Sony VPCEG laptop and running Linux Mint 13 on it. May 30, 2023 · I’ve been unable to control brightness on my 11th Gen Framework laptop in both Ubuntu 22. everything seems cool but im running into some graphic issues and i also wish i installed the other version of mint. Any ideas? My function keys, while they bring up the brightness control I am running KDE Linux Mint 9. If you installed Linux Mint and the brightness keys, applet, and manually setting the brightness from a terminal fail to do anything, you probably have an intel backlight. How to install Linux Mint on Legion 5 to have proper hardware drivers and screen brightness control Linux Mint is forked from Debian and similar to Ubuntu so this may work for Ubuntu OS as well. 5 Install Issues - Brightness Issue Forum rules Before you post read how to get help. I have searched the many threads addressed at solving issues of lost brightness controll, but cannot find one thread that seems to fit my problem. The image is so faint on the laptop screen. Jan 30, 2022 · I downloaded the xfce version of mint and everything is working fine except for the brightness control, here viewtopic. I can change this level but my screen stays fully lit whatever level I choose. 1 on MBP 2009. ikdrbi sz ccia dv8ci srs2 4o eljh ksu esu 5t