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. 😕 1 Dell Precision 7770 (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 Dell Precision 7770 (personal) Intel Core i9-12950HX ("Alder Lake"), 8P+8E 8× P cores ("Golden Cove"): 2.3 GHz base, 5.0 GHz turbo, hyperthreading 8× E cores ("Gracemont"): 1.7 GHz base, 3.6 GHz turbo 128GB DDR5-3600 (CAMM) NVIDIA GeForce RTX 3080 Ti 16GB (DGFF) Storage: 2TB system drive: Samsung 980 Pro, PCIe4 24TB additional storage: MDRAID, RAID 0 2× 8TB Sabrent Rocket 4 Plus, PCIe4 1× 8TB Inland Performance Plus, PCIe4 Kubuntu 23.04 (KDE Plasma 5.27, Linux kernel 6.2) 17.3" 3940×2160 120 Hz display Intel Wi-Fi AX211 (Wi-Fi 6E + Bluetooth) 93Wh battery IR 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 display Intel Wi-Fi AX210 (Wi-Fi 6E + Bluetooth) 95Wh battery 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. 1 Dell Precision 7770 (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 Dell Precision 7770 (personal) Intel Core i9-12950HX ("Alder Lake"), 8P+8E 8× P cores ("Golden Cove"): 2.3 GHz base, 5.0 GHz turbo, hyperthreading 8× E cores ("Gracemont"): 1.7 GHz base, 3.6 GHz turbo 128GB DDR5-3600 (CAMM) NVIDIA GeForce RTX 3080 Ti 16GB (DGFF) Storage: 2TB system drive: Samsung 980 Pro, PCIe4 24TB additional storage: MDRAID, RAID 0 2× 8TB Sabrent Rocket 4 Plus, PCIe4 1× 8TB Inland Performance Plus, PCIe4 Kubuntu 23.04 (KDE Plasma 5.27, Linux kernel 6.2) 17.3" 3940×2160 120 Hz display Intel Wi-Fi AX211 (Wi-Fi 6E + Bluetooth) 93Wh battery IR 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 display Intel Wi-Fi AX210 (Wi-Fi 6E + Bluetooth) 95Wh battery 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...
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