K4sum1 Posted May 22 Share Posted May 22 I got a M4800 with a Quadro M2200, it's pretty nice but I can't seem to control the brightness from within Windows. If I use the hotkey I get the UI element of the brightness change but it remains at its current brightness. The power options slider doesn't work either. Doesn't matter if plugged in or not. Only the BIOS brightness slider appears to change anything for Windows. Oddly Linux Mint 21 runs at a very low brightness, and I can adjust it, but only down, down enough where the backlight just turns off. Precision M4800 - i7 4810MQ, 32GB RAM, Nvidia Quadro M2200 Thinkpad T430 - i7 3630QM, 16GB RAM, Intel HD 4000, 1080p display mod Main PC - AMD Ryzen 9 5950X, 64GB RAM, RTX 2080 Ti Link to comment Share on other sites More sharing options...
Aaron44126 Posted May 22 Share Posted May 22 This is a common problem with an "unsupported GPU" in this system. You should be able to set the brightness level in the BIOS. If you're running with Optimus / graphics switching turned on, it should work but you might have to use the Intel GPU driver package from Dell, not the one built-in to Windows or from Intel's web site. If you're running with Optimus / graphics switching turned off, I don't know if there is really a solution to this. 😕 2 Apple MacBook Pro 16-inch, 2023 (personal) • Dell Precision 7560 (work) • Full specs in spoiler block below Info posts (Dell) — Dell Precision key posts • Dell driver RSS feeds • Dell Fan Management — override fan behavior Info posts (Windows) — Turbo boost toggle • The problem with Windows 11 • About Windows 10 LTSC Spoiler Apple MacBook Pro 16-inch, 2023 (personal) M2 Max 4 efficiency cores 8 performance cores 38-core Apple GPU 96GB LPDDR5-6400 8TB SSD macOS 14 "Sonoma" 16.2" 3456×2234 120 Hz mini-LED VRR display Wi-Fi 6E + Bluetooth 5.3 99.6Wh battery 1080p webcam Fingerprint reader Dell Precision 7560 (work) Intel Xeon W-11955M ("Tiger Lake") 8×2.6 GHz base, 5.0 GHz turbo, hyperthreading ("Willow Cove") 64GB DDR4-3200 ECC NVIDIA RTX A2000 4GB Storage: 512GB system drive (Micron 2300) 4TB additional storage (Sabrent Rocket Q4) Windows 10 Enterprise LTSC 2021 15.6" 3940×2160 IPS display Intel Wi-Fi AX210 (Wi-Fi 6E + Bluetooth 5.3) 95Wh battery 720p IR webcam Fingerprint reader Previous Dell Precision 7530, 7510, M4800, M6700 Dell Latitude E6520 Dell Inspiron 1720, 5150 Dell Latitude CPi Link to comment Share on other sites More sharing options...
K4sum1 Posted May 22 Author Share Posted May 22 Hmm, why have I not seen this discussed anywhere else? Also why is it an issue with this model? I remember my 8770W having no issues with the 980m when it worked. Precision M4800 - i7 4810MQ, 32GB RAM, Nvidia Quadro M2200 Thinkpad T430 - i7 3630QM, 16GB RAM, Intel HD 4000, 1080p display mod Main PC - AMD Ryzen 9 5950X, 64GB RAM, RTX 2080 Ti Link to comment Share on other sites More sharing options...
Aaron44126 Posted May 22 Share Posted May 22 This sort of issue popped up semi-regularly on NBR back when these systems were "old enough to have GPU replacements done" but not yet "really old" (2015-2018 timeframe?). There isn't a whole lot of discussion of the pre-7000 series systems here on NBT. 2 Apple MacBook Pro 16-inch, 2023 (personal) • Dell Precision 7560 (work) • Full specs in spoiler block below Info posts (Dell) — Dell Precision key posts • Dell driver RSS feeds • Dell Fan Management — override fan behavior Info posts (Windows) — Turbo boost toggle • The problem with Windows 11 • About Windows 10 LTSC Spoiler Apple MacBook Pro 16-inch, 2023 (personal) M2 Max 4 efficiency cores 8 performance cores 38-core Apple GPU 96GB LPDDR5-6400 8TB SSD macOS 14 "Sonoma" 16.2" 3456×2234 120 Hz mini-LED VRR display Wi-Fi 6E + Bluetooth 5.3 99.6Wh battery 1080p webcam Fingerprint reader Dell Precision 7560 (work) Intel Xeon W-11955M ("Tiger Lake") 8×2.6 GHz base, 5.0 GHz turbo, hyperthreading ("Willow Cove") 64GB DDR4-3200 ECC NVIDIA RTX A2000 4GB Storage: 512GB system drive (Micron 2300) 4TB additional storage (Sabrent Rocket Q4) Windows 10 Enterprise LTSC 2021 15.6" 3940×2160 IPS display Intel Wi-Fi AX210 (Wi-Fi 6E + Bluetooth 5.3) 95Wh battery 720p IR webcam Fingerprint reader Previous Dell Precision 7530, 7510, M4800, M6700 Dell Latitude E6520 Dell Inspiron 1720, 5150 Dell Latitude CPi Link to comment Share on other sites More sharing options...
Will Posted November 11 Share Posted November 11 On 5/22/2023 at 12:21 PM, K4sum1 said: Hmm, why have I not seen this discussed anywhere else? Also why is it an issue with this model? I remember my 8770W having no issues with the 980m when it worked. Did your 8770w have a DreamColor screen? I'm asking this because I can't adjust the screen brightness of my 8770w neither with an M3000M nor with an M4000M, and i have a 1600x900 non DreamColor screen. The brightness level is stuck both in Windows and Linux. Maybe with a DreamColor screen I could adjust the screen brightness? Link to comment Share on other sites More sharing options...
K4sum1 Posted November 11 Author Share Posted November 11 It was the stock 1080p LVDS panel. Worked without issue for me. Precision M4800 - i7 4810MQ, 32GB RAM, Nvidia Quadro M2200 Thinkpad T430 - i7 3630QM, 16GB RAM, Intel HD 4000, 1080p display mod Main PC - AMD Ryzen 9 5950X, 64GB RAM, RTX 2080 Ti Link to comment Share on other sites More sharing options...
raptorddd Posted November 15 Share Posted November 15 On 5/22/2023 at 8:21 AM, K4sum1 said: Hmm, why have I not seen this discussed anywhere else? Also why is it an issue with this model? I remember my 8770W having no issues with the 980m when it worked. this happens to me on m4600. windows 11. if clean install then slider does work. once you install the gpus drivers it stops working. you can adjust in bios or use this command SET BRIGHTNESS (Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,50) this is 50% change the las 2 digits to change on the go. 1 dell precision m4600 i7 2760QM 8GB ram MX500 crucial SSD 500GB. win 10 21H2 Link to comment Share on other sites More sharing options...
K4sum1 Posted November 18 Author Share Posted November 18 On 11/15/2023 at 12:17 PM, raptorddd said: this happens to me on m4600. windows 11. if clean install then slider does work. once you install the gpus drivers it stops working. you can adjust in bios or use this command SET BRIGHTNESS (Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,50) this is 50% change the las 2 digits to change on the go. Finally got around to trying it on my laptop, and it doesn't appear to do anything for me. Precision M4800 - i7 4810MQ, 32GB RAM, Nvidia Quadro M2200 Thinkpad T430 - i7 3630QM, 16GB RAM, Intel HD 4000, 1080p display mod Main PC - AMD Ryzen 9 5950X, 64GB RAM, RTX 2080 Ti Link to comment Share on other sites More sharing options...
raptorddd Posted November 18 Share Posted November 18 2 hours ago, K4sum1 said: Finally got around to trying it on my laptop, and it doesn't appear to do anything for me. really.? it needs service Display Enhancement Service Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,50 Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,75 here is at 75% i tried this long time agon on windows 10.. just tried it now and it didnt worked for me either. but i do remove as many stuuf as i can from OS. dell precision m4600 i7 2760QM 8GB ram MX500 crucial SSD 500GB. win 10 21H2 Link to comment Share on other sites More sharing options...
K4sum1 Posted November 18 Author Share Posted November 18 Oh this is 8.1, that service doesn't exist. 1 Precision M4800 - i7 4810MQ, 32GB RAM, Nvidia Quadro M2200 Thinkpad T430 - i7 3630QM, 16GB RAM, Intel HD 4000, 1080p display mod Main PC - AMD Ryzen 9 5950X, 64GB RAM, RTX 2080 Ti Link to comment Share on other sites More sharing options...
raptorddd Posted 21 hours ago Share Posted 21 hours ago On 11/18/2023 at 9:55 AM, K4sum1 said: Oh this is 8.1, that service doesn't exist. sorry the code was wrong try this... (Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,50) dell precision m4600 i7 2760QM 8GB ram MX500 crucial SSD 500GB. win 10 21H2 Link to comment Share on other sites More sharing options...
K4sum1 Posted 19 hours ago Author Share Posted 19 hours ago Still does nothing Precision M4800 - i7 4810MQ, 32GB RAM, Nvidia Quadro M2200 Thinkpad T430 - i7 3630QM, 16GB RAM, Intel HD 4000, 1080p display mod Main PC - AMD Ryzen 9 5950X, 64GB RAM, RTX 2080 Ti Link to comment Share on other sites More sharing options...
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