Bug #15833
Regression in 3.9~rc1 on some NVIDIA Pascal graphics cards
100%
Description
This is being discussed on tails-testers@ (Subject: Nvidia Pascal no longer loads gdm) + I’ve received some more data privately (Subject: Clean Tails 3.8 Nvidia Pascal dump.
Subtasks
Related issues
|
Related to Tails - |
Resolved | 2017-10-31 | |
| Related to Tails - Bug #15116: X.Org does not start with some NVidia Maxwell and Pascal graphic cards | Confirmed | 2017-12-27 | |
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Blocks Tails - |
Resolved | 2018-02-20 |
History
#1 Updated by intrigeri 2018-08-22 13:12:37
- blocks
Feature #15334: Core work 2018Q3: Foundations Team added
#2 Updated by intrigeri 2018-08-22 13:17:35
- Description updated
#3 Updated by intrigeri 2018-08-22 13:18:09
- Description updated
#4 Updated by intrigeri 2018-08-22 16:16:22
GTX 1070 ti aka. 07:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [10de:1b82] (rev a1) aka. NV134:
- in 3.8, “ran stable, if poorly”, using the modesetting X.Org driver in Tails 3.8 because
Unknown chipset: NV134and[drm] Failed to open DRM device for pci:0000:07:00.0: -13 - in 3.9~rc1, various issues that the OP is debugging and sending me info about
#5 Updated by intrigeri 2018-08-29 06:48:27
- related to
Bug #14910: NVIDIA Pascal series graphic card: slow graphics operations added
#6 Updated by intrigeri 2018-08-29 06:48:32
- related to Bug #15116: X.Org does not start with some NVidia Maxwell and Pascal graphic cards added
#7 Updated by intrigeri 2018-08-29 07:03:17
The call for testing for the nouveau upgrade showed only 1 significant improvement that was improved performance on GTX 1080.
But now we see a severe regression with GTX 1070 ti: GDM won’t load unless one pass:
- either
modeset=0, which makes X.Org fall back to the fbdev driver - or
live-config.xorg-driver=modesetting
The latter is probably better.
#8 Updated by intrigeri 2018-08-29 07:08:27
- Status changed from Confirmed to In Progress
- % Done changed from 0 to 10
- Feature Branch set to bugfix/15833-revert-to-stretch-nouveau-driver
#9 Updated by intrigeri 2018-08-30 04:59:25
- Assignee changed from intrigeri to segfault
- % Done changed from 10 to 50
- QA Check set to Ready for QA
According to Soul Null’s report on the topic branch on GTX 1070 ti:
- If we “downgrade” the nouveau driver to the version from Stretch that was shipped in Tails 3.8, we’re back to square one i.e. Tails boots fine, uses the modesetting driver, and
Bug #14910is back. - Even with the newest version of everything involved (Arch Linux), there are lots of stability issues on GTX 1070 Ti and GTX 710 when using the nouveau driver, which suggests that the ecosystem is not ready to support this hardware properly.
According to Bug #15116#note-42 (the single substantial improvement reported about the nouveau driver upgrade) and Bug #14910#note-16, on 3.9~rc1 and GTX 1080, performance is better but there are still a number of bugs.
Improving performance on one graphics card model is not worth breaking X.Org startup so let’s revert to the nouveau driver from Stretch. Once this is merged we should reopen Bug #14910.
#10 Updated by intrigeri 2018-08-30 04:59:35
- Type of work changed from Research to Code
#11 Updated by segfault 2018-09-03 19:44:33
Code review passes, will test this later today
#12 Updated by intrigeri 2018-09-04 13:08:02
- Status changed from In Progress to Fix committed
- % Done changed from 50 to 100
Applied in changeset commit:a1a3fb52ae78e6fffc43621dec85340b127e85ae.
#13 Updated by segfault 2018-09-04 15:54:51
- Assignee changed from segfault to intrigeri
- QA Check changed from Ready for QA to Pass
Works on my hardware
#15 Updated by intrigeri 2018-09-05 16:16:46
- Status changed from Fix committed to Resolved