With Lenovo anyway, there is a BIOS setting to select the graphics card you want to use, with Auto / Optimus the default. Change to PCI / External for the nVidia card or Internal for Intel, and it works fine for SL6.x...
-- James Pulver CLASSE Computer Group Cornell University -----Original Message----- From: owner-scientific-linux-us...@listserv.fnal.gov [mailto:owner-scientific-linux-us...@listserv.fnal.gov] On Behalf Of Karel Lang AFD Sent: Tuesday, January 27, 2015 10:51 AM To: Lamar Owen; SCIENTIFIC-LINUX-USERS@FNAL.GOV Subject: Re: SL on Dell Precision M4800 Mobile Workstation Hi, i, for one, would approach any laptop using Nvidia Optimus technology with caution, particularly if i want to run Linux on it. I googled your laptop config and it comes with 'Intel(r) Core(tm) i7-4900MQ Processor' meaning Intel(r) HD Graphics 4600 built in. I just wander, why the laptop sellers stopped to announce Nvidia Optimus technology on their laptops - nowadays noone says a word. Is it because it got a bad rep? In my eyes it indeed does. Bumblebee is working solution on Linux, but not entirely convenient? - you need to switch between VGAs manually as far as i understand the problem. I don't have personal experience with Optimus, as i do not own any newer built laptop (my own is 6yrs old). But after reading many many angry threads on various linux (and even a windows) forums, i'd think twice before buying one. -- *Karel Lang* *Unix/Linux Administration* l...@afd.cz | +420 731 13 40 40 AUFEER DESIGN, s.r.o. | www.aufeerdesign.cz On 01/27/2015 03:54 PM, Lamar Owen wrote: > On 01/27/2015 12:10 AM, Yasha Karant wrote: >> I am considering replacing my current HP 8530p with a >> Dell Precision M4800 Mobile Workstation . > Dell Precision Mobile Workstations are (and have been for a long while > now) available with Red Hat Enterprise Linux preinstalled (as long as > you're in the correct portal; I think you need to be in one of the > business portals, not the individual one, where they push Inspirons > instead of Latitudes and Precisions). If RHEL will work, so will SL (or > CentOS, for that matter). My M6500 works very well with CentOS 7 (and > it would with SL 7 as well), and my previous M4300 worked very well with > CentOS 6 (and would have worked well with SL6). >