linux-libre 6 breaks OpenGL on nouveau driver for nvidia 8800 GTS 640 Mo card

  • Open
  • quality assurance status badge
Details
One participant
  • Maxim Cournoyer
Owner
unassigned
Submitted by
Maxim Cournoyer
Severity
normal
M
M
Maxim Cournoyer wrote on 18 Nov 2022 16:47
linux-libre 6 breaks OpenGL on nouveau driver
(name . bug-guix)(address . bug-guix@gnu.org)
87h6yw463e.fsf@gmail.com
Hi,

When booting my Guix System with linux-libre 6.0.8, nouveau silently
fails to render OpenGL. It includes symptoms such as:

1. Getting stuck on the GDM screen, which makes use of OpenGL
2. Not being able to use Qt5 or Qt6 applications, which renders via
OpenGL.
3. the 'glxgears' program from mesa-utils displays frozen gears (not
turning)

My graphic card is an old nvidia 8800 GTS with 640 MiB of video RAM.

Workaround: Adding the '(kernel linux-libre-5.15)' to my OS definition
fixes it.

--
Thanks,
Maxim
M
M
Maxim Cournoyer wrote on 20 Nov 2022 14:42
(address . 59361@debbugs.gnu.org)
87h6yt3foi.fsf@gmail.com
Hello,

Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:

Toggle quote (16 lines)
> Hi,
>
> When booting my Guix System with linux-libre 6.0.8, nouveau silently
> fails to render OpenGL. It includes symptoms such as:
>
> 1. Getting stuck on the GDM screen, which makes use of OpenGL
> 2. Not being able to use Qt5 or Qt6 applications, which renders via
> OpenGL.
> 3. the 'glxgears' program from mesa-utils displays frozen gears (not
> turning)
>
> My graphic card is an old nvidia 8800 GTS with 640 MiB of video RAM.
>
> Workaround: Adding the '(kernel linux-libre-5.15)' to my OS definition
> fixes it.

Now reported upstream at

--
Thanks,
Maxim
M
M
Maxim Cournoyer wrote on 27 Nov 2022 18:04
(address . 59361@debbugs.gnu.org)
87y1rwpbw8.fsf@gmail.com
Hi,

Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:

Toggle quote (23 lines)
> Hello,
>
> Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:
>
>> Hi,
>>
>> When booting my Guix System with linux-libre 6.0.8, nouveau silently
>> fails to render OpenGL. It includes symptoms such as:
>>
>> 1. Getting stuck on the GDM screen, which makes use of OpenGL
>> 2. Not being able to use Qt5 or Qt6 applications, which renders via
>> OpenGL.
>> 3. the 'glxgears' program from mesa-utils displays frozen gears (not
>> turning)
>>
>> My graphic card is an old nvidia 8800 GTS with 640 MiB of video RAM.
>>
>> Workaround: Adding the '(kernel linux-libre-5.15)' to my OS definition
>> fixes it.
>
> Now reported upstream at
> https://gitlab.freedesktop.org/drm/nouveau/-/issues/192.

The commit that regressed was found via git bisect, by using the
following in my system configuration:

Toggle snippet (28 lines)
modified guix/hurd.scm
@@ -1,6 +1,7 @@
(use-modules (gnu)
+ (guix git)
(guix modules)
(guix store)
(srfi srfi-1)
@@ -98,6 +99,21 @@

+(define make-linux-libre* (@@ (gnu packages linux) make-linux-libre*))
+
+(define (linux-source commit)
+ (git-checkout
+ (url "file:///home/maxim/src/linux")
+ (commit commit)))
+
+(define %linux-commit "889fcbe949bdd8470931a90b91f273ca18c510c1")
+
+(define-public %linux-kernel
+ (make-linux-libre* "5.19" "0" (linux-source %linux-commit) '("x86_64-linux")
+ #:configuration-file (@@ (gnu packages linux) kernel-config)
+ #:extra-version "stock"
+ #:build-doc? #f))
+
(define %mapped-devices
(list (mapped-device

And changing the value of %linux-commit for each git bisect. The
original git-checkout clone took forever (multiple hours), but after the
initial clone done, each kernel build took about 20 minutes on a fast
machine.

The offending Linux commit is 889fcbe949bdd8470931a90b91f273ca18c510c1 [0]


--
Thanks,
Maxim
M
M
Maxim Cournoyer wrote on 13 Jan 2023 22:08
control message for bug #59361
(address . control@debbugs.gnu.org)
877cxqf8h2.fsf@gmail.com
retitle 59361 linux-libre 6 breaks OpenGL on nouveau driver for nvidia 8800 GTS 640 Mo card
quit
?