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I have Linux running on a Lenovo T420s. Intel everything - chipset, graphics, etc. - stuff that should be supported in Linux great. If I run Chromium, it hard

I have Linux running on a Lenovo T420s. Intel everything - chipset, graphics, etc. - stuff that should be supported in Linux great. If I run Chromium, it hard locks my screen with visual artifacts unless I disable GPU acceleration. No problems running in Windows at all (including the normal composited desktop environment, Chrome, etc.). I find that even with proven non-bleeding-edge hardware with known drivers, battery life and graphics stability are far worse.

staofbur 9y ago
Same problem with the T420, T420 and T440 I have had. The T440 I couldn't get more than 3 hours out of it compared to 7-8 on windows. They had the PM set up properly. Powertop shows loads of things constantly waking the devices up.
- UncleSlacky 9y ago
  Have you tried TLP? It was originally written specifically with Thinkpads in mind, but can be used on any laptop now: http://linrunner.de/en/tlp/docs/tlp-linux-advanced-power-management.html http://linrunner.de/en/tlp/docs/tlp-linux-advanced-power-man...
  - staofbur 9y ago
    Yeah I burned hours on powertop and TLP.
boomboomsubban 9y ago
Lenovo T420S has an Nvidia GPU from what I can see, it's probably trying to use that but there's some issue getting nouveau's acceleration working. And battery life on thinkpads often needs tinkering, either through kernel parameters or tp_smapi if supported.