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#1 2018-04-07 13:57:05

b_stefan
Member
Registered: 2017-03-16
Posts: 9

High power usage with chromium VAAPI

I have a Lenovo T480 laptop with a nvidia discrete GPU and a intel integrated graphics chip. The discrete GPU is disabled with bumblebee. I installed the chromium browser with VAAPI support from the AUR and hardware acceleration works if I force it with chrome://flags .Also the CPU usage is around 20-30% when playing a 1080p@60fps video as opposed to 50% when not using VAAPI with hardware acceleration. The problem is though that with HW acceleration my laptop draws ca 22W and the CPU temps are around 60 degree Celsius. Without HW acceleration the usage is around 9W and the temperatures are much lower at 45 degrees. So I am trading stuttering video and low temps and low power usage for smooth video playback and very high temps/ power usage. I might add that on Windows on the same laptop with HW acceleration Chrome does stay at 45 degrees. Isn't VAAPI supposed to fix the high temp / high power usage?

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