Hi all!
Could some owners of IBM and Lenovo laptop plese test these 2 things:
- decrease brightness < 50% - try to increase brightness too 100%
- decrease brightness to 0% - try to increase brightness too 100%
On my test laptops with AMD I cannot increase the brightness to > 50% when I dimmed it to < 50%. When on 0% it can only be increased to ~ 5%. I think it also affects newer intel models > T480, but I'm not sure.
IMO the NVRAM layout changed and I try to figure out which model are affected and which are not.
Nik
On Wednesday 12 November 2025 10:31:41 Dr. Nikolaus Klepp via tde-users wrote:
On my test laptops with AMD I cannot increase the brightness to > 50% when I dimmed it to < 50%. When on 0% it can only be increased to ~ 5%. I think it also affects newer intel models > T480, but I'm not sure.
Here's what I can observe:
Lenovo Thinkpad X390 / i7; MX Linux 23.6 / TDE R14.1.5 Fn + F5/F6 can decrease and increase the brightness without problem.
Lenovo Thinkpad P51 / MX 21.3 / TDE F5/F6 can decrease and increase the brightness without problem.
Thierry
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Dr. Nikolaus Klepp -
Thierry de Coulon