This is a bit old, but... On 2021-04-24 15:37:28 -0400, Felix Miata wrote: > Vincent Lefevre composed on 2021-04-24 21:05 (UTC+0200): > > > Yes, very bad experience with the nouveau driver (I haven't tried > > recently with the latest kernels, but my bug reports remained > > unanswered), which is the only free driver I know. In particular, > > it is unusable with my laptop and an external screen, as being > > awfully slow (just for basic desktop use, such as scrolling and > > moving windows). > > That description sounds exactly like you were *not* using the > nouveau X driver. What you describe is what is expected from using > the VESA and FBDEV drivers, the fallback you get if you use > nomodeset or nouveau.modeset=0 to boot, or if the nouveau kernel > driver is blacklisted, or if NVidia drivers and their configuration > files have been incompletely purged.
I had posted an excerpt of lshw output, and it was saying: *-display description: VGA compatible controller product: GK208GLM [Quadro K610M] vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:01:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom configuration: driver=nouveau latency=0 ^^^^^^^^^^^^^^ resources: irq:37 memory:d1000000-d1ffffff memory:70000000-7fffffff memory:80000000-81ffffff ioport:5000(size=128) memory:c0000-dffff And I don't see why the kernel would choose to use a different driver when there are 2 screens enabled. -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)