Hello,
On 27/09/2025 14:52, Thorsten Leemhuis wrote:
Does 6.17-rc7 work for you? We need to know if this needs to be fixed in just the stable tree or if it is something that needs to be addressed in mainline as well.
6.17-rc7 boots fine, so the issue is just in the stable tree.
Just wondering: why are those parameters needed? Is the hardware not fully supported be the xe driver yet?
i915 is still the default driver for Meteor Lake integrated GPUs, so that's why I need to pass those parameters. Lunar Lake already uses Xe by default, though. In my experience, for at least the last two kernel release cycles, I've observed better battery life and performance using the Xe driver.
I do not have concrete numbers about power usage and battery life, just my (subjective) feeling after using the laptop for a week with i915 and another week with Xe. About performance, Michael from Phoronix recently shared some benchmarks with a Core Ultra 7 155H (same CPU as the Thinkpad X1 Carbon Gen 12):
https://www.phoronix.com/review/intel-mtl-i915-xe-linux
Ciao, Thorsten
Best, Iyán