Date: Tue, 16 Feb 2021 22:15:46 +0300 From: Yuri Pankov <yuripv@yuripv.dev> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: laptops Message-ID: <fd491e9a-8d92-95d4-e3a4-b267deb008ab@yuripv.dev> In-Reply-To: <ce13790c-cc1b-98ef-68ff-0fc18a5c2f6c@nomadlogic.org> References: <20210216134229.773fde3d@dismail.de> <ce13790c-cc1b-98ef-68ff-0fc18a5c2f6c@nomadlogic.org>
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Pete Wright wrote: > > > On 2/16/21 10:42 AM, LuMiWa via freebsd-questions wrote: >> Hi! >> >> I did search FreeBSD Wiki/laptops but I didn't find the answer. I like >> to buy Thinkpad W541 or W550s (prefer W541) but I am not sure if will >> work on FreeBSD. I want it to connect external monitor which going >> through Nvidia graphics card which Optimus driver supposed it works on >> FreeBSD 13. I found that installation works on W520 and 530. > I have a different Thinkpad with Optimus graphics - a P43s. It mostly > works, but have been pretty underwhelmed by the hybrid graphics of > Optimus systems. Not just with FreeBSD, but from what I gather its > suboptimal on Linux as well. > > To get it working on FreeBSD there is an open PR* that gets things > working, and I can drive specific apps with the Nvidia GPU (via the > "optirun" binary). But there is a bit of level of effort getting it to > work until we can get this PR over the finish line since I maintain a > branch of the ports tree to just support the diffs in this PR. > > One other issue I have is with the overall design of the Optimus design, > the GPU is used to offload processing but the display is still driven by > the Intel i915 GPU. Depending on your use-case this may lead to reduced > performance. All in all I am very happy with this thinkpad, but if I > had a choice I would have chosen a system with dedicated Nvidia or i915 > GPU's rather than this hybrid approach. I do not know what exactly "optimus" is, but e.g. in P51 I can select either "hybrid graphics" (i915) or "discrete graphics" (nvidia quadro). With the latter, I had no issues connecting external display.
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