|Summary:||Pcie link speed is gen2 instead of gen3|
|Component:||Driver/nouveau||Assignee:||Nouveau Project <nouveau>|
|Status:||RESOLVED MOVED||QA Contact:||Xorg Project Team <xorg-team>|
|i915 platform:||i915 features:|
Description bloblo 2017-08-15 16:14:49 UTC
Created attachment 133530 [details] lspci pstate 07 0f, vbios.rom nouveau, gtx770bios.rom from my gtx770 card Hello, Pcie link speed is gen2 instead of gen3 Kernel version: 4.10.0 (same situation with kern 4.9, 4.11, 4.13-rcx, 4.12 no tested/remember) My motherboard: x79 with 2 slot pci express 3 support My graphic card: nvidia (msi) gtx 770 4 gb ddr5 oc edition twin frozr (2x fan) Xorg: 7.7+19 Nouveau: xserver-xorg-video-nouveau 1.0.13-3 libdrm-nouveau2 2.4.74-1 Dmesg (i compiled kernel with nouveau debug level 4 so very much info (clk, fan etc), i pick just this: nouveau 0000:02:00.0: pci: pcie max speed: 5.0GT/s nouveau 0000:02:00.0: DRM: VRAM: 4096 MiB nouveau 0000:02:00.0: DRM: GART: 1048576 MiB (clock and pstate are fine and its work) We are 2 situation: 1- All gtx 770 have this situation (with nouveau) or/and 2- Nvidia disable using 8 gt/s by default (in forums nvidia: is for all cards or only for x79 motherboard maybe ? but give option to enable pci3 with grub and for windows give a small program exe to enable pcie3 (You can default 8gt/s support but you also add nouveau.config=pcie=3 something as nvidia method is your choice) In attachment: - lspci with pstate 07 - lspci with pstate 0f - vbios.rom from nouveau, located in same path of pstate files - gtx770bios.rom, bios rom of my gtx 770 extracted with gpuz in windows ps: in lspci link showing max 5gt/s, but with blacklist nouveau, is show 8 gt/s
Comment 1 Martin Peres 2019-12-04 09:30:23 UTC
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/363.