On Mon, Dec 27, 2021 at 12:58:51PM +0100, Miguel Ortiz Lombardía wrote: > Wow! Thanks a lot to David and to you Andy! > > Yes, all that is right about the graphic cards. So far, I never had a > problem with the installers (but never used the standard ones, > actually) I will check whenever possible, but I sort of remember to > have disable at some point the Optimus switch on the BIOS. If so, the > Intel card should be disabled. > > Anyway, you give me some work to do :-) I'll try that as soon as > possible. > > All the best, > > mol >
More than happy to help. I have had good results when using the bumblebee packages in the past. When I didn't have them, then I got lockups and mysterious problems. It took me about 3 days to work out how best to do the sequencing I've laid out above. The _crucial_ thing is not to use any graphical environment until after the drivers you want are compiled / installed and available. It was hard work to do once, then I forgot and had to do it all again and document it - so now I remember it well :) All the very best, as ever, Andy Cater > > > El Mon, 27 Dec 2021 07:28:02 +0000 > "Andrew M.A. Cater" <amaca...@einval.com> escribió: > > > Thanks to David Christensen over on debian-user mailing list: > > > > Your E6520 is a hybrid laptop with two chipsets: one Intel graphics, > > one Nvidia. On battery power, it will use the Intel, when plugged in > > to higher resolution displays or whatever, it will use the Nvidia. > > > > This is also similar to high end gaming laptops. > > > > With the standard install, it's occasionally possible that conflict > > between which display chipset to use / nouveau drivers may mean > > lock-ups. > > > > There are three solutions possible, I think [I no longer have one of > > these to deal with] > > > > 1. Ignore the Nvidia and use the Intel driver only. This will probably > > work to some extent. It may be necessary to deny list the Nvidia > > drivers > > > > 2. Ignore the Intel and use the Nvidia drivers only - probably the > > non-free drivers > > > > 3. Use the Optimus drivers which will allow the laptop to switch > > between chipsets. This is provided by the bumblebee package in Debian > > - and there are two types: one is a fully free driver and links in > > with nouveau, one relies on the Nvidia proprietary drivers. > > > > In my limited experience: > > > > It is easiest to start with an expert text mode install and > > explicitly uncheck/deselect the graphics drivers as you go: uncheck > > Debian graphical environment and Gnome. > > Install only the standard packages and minimal drivers - command line > > only. > > > > Install build-essential and dkms packages and also choose which > > bumblebee package to use and add it. > > > > If you choose to use the proprietary drivers - build them at this > > point with no major graphics drivers loaded. The proprietary drivers > > will taint the kernel. dkms - if properly installed - should build > > the necessary kernel drivers with each kernel change. > > > > At that point, everything should work on the command line. > > > > After that, reboot and as root/sudo equivalent, use the tasksel > > command to install a desktop environment. This _should_ allow > > everything to work correctly. > > > > Hope this helps. With every good wish, as ever, > > > > Andy Cater > >
