Unsolved
1 Rookie
•
28 Posts
0
13387
Precision 7730 -- brightness adjustment stops working in latest BIOS
I updated my BIOS to the latest (1.11.0) and after that I was not able to change brightness in Windows with Fn+Up and Fn+Down. I reverted back BIOS to the previous version (1.10.1) and now it's fine. My machine was purchased in France, but I don't speak French and with my service tag system allowed me to chat with French. I started an English chat but the guy told me that the common chat is not technical related.
mike_at_gm
2 Posts
0
February 16th, 2020 08:00
I have a similar problem. Dell 7530, loading Ubuntu 18.04.4. I am disabling switchable graphics because I am not loading the Nvidia grahpics driver. After POST, the screen goes dim. I use the Fn+arrow up to increase brightness but it is at the max.
I have tried BIOS versions: 1.2.5, 1.6.0, 1.110, 1.12.1.
_Artur_
19 Posts
0
February 21st, 2020 12:00
Hi,
same problem: P7730 with UHD screen, GPU internal Intel 630, no discrete graphic card. Both 1.11 an 1.12 BIOS versions break brightness control with Fn+Up/Down. I reverted BIOS to version 1.10 and shortcuts work again.
My previous post has been removed, I hope this one stays.
bjohnso2
1 Message
0
February 21st, 2020 12:00
I have BIOS 1.12.1 and I am still not able to adjust the screen brightness on my 7730. I have verified my drivers and they are all up to date. I have the Quatro 5200 video card and it is the only active card since I have switchable video cards disabled in the BIOS. Is there a fix for this?
Woter1
3 Posts
0
February 26th, 2020 15:00
I too have a 7730 with the FN+ brightness issue.
The device is running Windows 10, Enterprise 1909.
The BIOS version is 1.12.1, released 09/12/2019.
I cannot control the brightness from within Windows.
@Anonymous, when may be expect a fix?
TIA
_Artur_
19 Posts
1
February 27th, 2020 10:00
Looks like these bugs are universal: Windows 10 Enterprise, Windows 10 Pro, Ubuntu 18.04 LTS, Debian 11 (mine) - whether system is certified or not (Windows 10 NOT certified??). If shortcuts work in old Linux system, like Ubuntu 16.04, then in old enough Windows they would work too, I suppose.
The errors wrote in /var/log/syslog after using Fn+Up/Down keys were similar to already mentioned here:
ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.PEG0.NHDA], AE_NOT_FOUND (20190816/psargs-330)
ACPI Error: Aborting method \NEVT due to previous error (AE_NOT_FOUND) (20190816/psparse-529)
ACPI Error: Aborting method \_SB.PCI0.LPCB.ECDV._Q66 due to previous error (AE_NOT_FOUND) (20190816/psparse-529)
About sleep: I didn't tried suspend shortcut, I set power key action to suspend instead. As long as I had 1.12 BIOS version laptop sometimes didn't wake up from sleep. It was difficult to find a reason, why just sometimes. AFAIR suspend/wake up worked fine in 1.11 (aside of broken brightness shortcut). After BIOS downgrade do 1.10 all functions work fine again.
Dell BIOS is like a wine: the older the better
mifalek
3 Posts
0
March 8th, 2020 10:00
My Precision 7530 has recently lost possibility to adjust screen brightness. Very annoying when one wants to work in the evening time. My BIOS ver is 1.12.1
pvdputte
9 Posts
0
March 31st, 2020 06:00
Today I accidentally installed the broken 0.12.1 update again through fwupdmgr while upgrading another device. Highly annoying and I refuse to keep it installed because with that version my system won't resume from suspend anymore either.
Is there any progress on this?
I checked in the UEFI itself and there the brightness keys still work indeed. Fn lock is configured as you say it should be.
_Artur_
19 Posts
0
April 6th, 2020 03:00
I installed BIOS version 1.12.1, then tried Ubuntu 16.04, Ubuntu 18.04, Debian 11 - same error everywhere:
mtsn
10 Posts
0
April 6th, 2020 11:00
yeah, we're all getting it. I've tried Windows, the image that my laptop came with, and the newest Ubuntu, all the same. Also brightness and sleep issues. The only fix it to revert back to BIOS/EFI firmware 1.10, and ignore messages to upgrade to 1.12 (or 1.11). We'll see if Dell steps forward and provides a 1.13 firmware.
Jeffonion
2 Posts
0
April 25th, 2020 13:00
I am having save issue when disable switch graphic card. If I use both graphic cards it is fine, but disable intel graphic card and only using nvidia P5200 , the display is always in maximum brightness.
Jeffonion
2 Posts
0
April 25th, 2020 13:00
@Dell-Alan D Hi Alan, just want to check if this issue is still under investigating? my brightness slider works fine if I am using intel graphic card but if I disable it and only using NVIDIA card alone the brightness control wont work.
Thanks
_Artur_
19 Posts
1
May 7th, 2020 10:00
Hi,
if you still have problem that laptop hangs on resume, then try this workaround:
https://askubuntu.com/questions/1171330/laptop-started-crashing-on-resume-but-only-on-battery
I removed intel-microcode package and tried a few suspend-resume cycles, while on power, battery or any combination. So far freeze did not occur
lagislovas
11 Posts
0
May 20th, 2020 05:00
same there, 7730 i9 with 5200 gpu, if intel is enebled. then cant adjust brightness. bios 12.
some times aswell if i leave laptop, its in sleep mode, and you need restart it manualy to wake it up
and now, i have dell external monitor 27 usb-c, after 10min screens goes off. then i move mouse, only main screen on laptop wake-up. external 27' usb-c, in sleep/standby mode. if i do detect screen no screen detected. need unplug usb-c and then connect it back or turn off and on monitor. then its detects it.
_Artur_
19 Posts
0
June 24th, 2020 12:00
BIOS version 1.13.1 has been lately released, so I made an upgrade. There was a small change: after pressing Fn+Up|Down system (kernel 5.6.0-2-amd64) no longer writes messages like "ACPI Error AE_NOT_FOUND" into /var/log/syslog, but brightness control still does not work. I keep custom shortcuts defined (Win+Up|Down) in Gnome settings, they work using following commands:
I tried to install intel-microcode too (version 3.20200609.2), but this package still breaks resuming the laptop from sleep state, so I removed it again and resume works again.
It is almost a year of patches after version 1.10.1, where everything worked, so I doubt the brightness and resume bugs will be ever fixed for current operating systems. They might not occur in Ubuntu 16.04, but I don't want to use an outdated system.
mtsn
10 Posts
0
June 24th, 2020 13:00
thanks for the update, now i know to not try 1.13 either. 1.10 is the last one that works, with so many different Dells. I wonder why they claim it does?
Interesting that the EFI can down download an OS image... each time the techs tried to walk me through that process on a windows machine, it didn't work and much later I'd find out that their server was down or something. Needed a physical visit to fix that. I know of someone else on the 1.12 EFI and they said that they had problems with starting the computer from standby with no power if it also went on standby with no power. Wondering if that's fixed. I sometimes have this issue... will be unresponsive to all keys except power.
Version 1.13.1:
Fixes: - Fixed the issue where the screen brightness cannot be adjusted.
• Fixed the issue where the system cannot boot using the SD card.
• Fixed the issue where the system cannot provide 210 W of power when connected to the Dell Performance Dock-WD19DC.
Enhancements:
• This update integrates the BIOSConnect feature into Dell SupportAssist OS Recovery. It connects the system to the Dell image server to download and recover the operating system.
• Updated the BIOS warning message that is displayed when an AC adapter with low wattage is connected to the system.
• Enhanced the system firmware auto recovery function when system firmware does not work.
• Enhanced the BIOS firmware update.