Date: Thu, 01 Jan 2015 11:19:35 +0000 From: Arthur Chance <freebsd@qeng-ho.org> To: "O. Hartmann" <ohartman@zedat.fu-berlin.de>, Matthias Apitz <guru@unixarea.de> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: CURRENT: Intel Haswell KMS support? Message-ID: <54A52D47.10306@qeng-ho.org> In-Reply-To: <20141231214835.0f46afc4.ohartman@zedat.fu-berlin.de> References: <20141231203011.51831755.ohartman@zedat.fu-berlin.de> <20141231200235.GA3957@unixarea.DDR.dd> <20141231214835.0f46afc4.ohartman@zedat.fu-berlin.de>
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On 31/12/2014 20:48, O. Hartmann wrote: > Am Wed, 31 Dec 2014 21:02:35 +0100 > Matthias Apitz <guru@unixarea.de> schrieb: > >> El día Wednesday, December 31, 2014 a las 08:30:11PM +0100, O. Hartmann escribió: >> >>> I've already switched a bunch of Haswell-based notebooks to a Linux system due to the >>> lack of iGPU support. It is ridiculous to purchase outdated hardware (IvyBridge and >>> less or outdated graphics hardware). >> >> Is VESA an option for you until Haswell support comes up in FreeBSD? The >> question is serious, because I'm on the way to install -HEAD in an Acer C720 >> cromebook with Haswell too. >> >> As well I do run (just for tests) Xorg with VESA on my current netbook >> Acer D250 (which has an old Intel chip) and I do not note any >> difference. >> >> matthias > > On a Lenovo ThinkPad E540/L540 with Haswell i5-4200M or i5-4210M with iGPU 4600 and > nVidia 740M Optimus GPU I hadn't success using the VESA driver. The display has a > HD resolution of 1920 x 1080 pixel, which seems to make VESA unusable. I had to use > x86-video-scfb - which is a pain in the ass: extremely slow, keystrokes sometimes pass > through from the console to the graphics screen (it looks like this, I have no better > desription for that phenomenon). Under load, X11 is unusable since the CPU has to render > the whole screen alone. > > A similar situation arose with Lenovo ThinkPad X240 with high resolution screens and > Haswell/HD4600 iGPU. > > I'm not familiar with the VESA driver. I left that path due to its resolution > limitations. We deal with modern hardware and I'm not willing to purchase outdated > hardware for the sake of the OS. On most laptops with Haswell CPUs we migrated to Linux > - with great success. As a sideeffect things run more smooth right now. Lenovo offers a > new type of WiFi NIC which also isn't supported by FreeBSD. The problem with Lenovo is > that their UEFI doesn't allow to simply swap the miniPCIe WiFi NIC for a supported > device. With most recent and modern products from Lenovo and FreeBSD (even CURRENT) we > ended up dead in the water. > > In general there is a serious problem with the graphics support in FreeBSD. Recent > hardware from AMD and Intel isn't supported, only nVidia offers support via their BLOB. > FreeBSD dropped also the nouveau driver. This is being written on a machine with an Intel i7-4790K CPU (Devil's Canyon, i.e. Haswell) and a Dell U2711 2560x1440 monitor. The X VESA driver works fine for me at native resolution. OK, I'm not a gamer and I don't do anything that needs fast 3D, but it works well enough that my first thought after reading the original post was "Haswell graphics aren't supported???" because I'd completely forgotten I was using the VESA driver. Using a vt console rather than sc I have no problem dropping out of X back into console mode either. -- Those who do not learn from computing history are doomed to GOTO 1
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