Bug#981114: nvidia-driver: Fails to display on any monitor change

2021-04-07 Thread Matthias Babisch

Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
From: Matthias Babisch 
To: Debian Bug Tracking System <981...@bugs.debian.org>
Subject: Re: nvidia-driver: Fails to display on any monitor change
Message-ID: 
<161785878981.49100.8822991974104545369.reportbug@animal.smooth.local>

X-Mailer: reportbug 7.10.3
Date: Thu, 08 Apr 2021 07:13:09 +0200

Package: nvidia-driver
Version: 460.67-1
Followup-For: Bug #981114

Dear Maintainer,

I am just reporting this in case it may be helpful.

I have a similar problem. I am using a 2 Monitor setup on Debian 
Bullseye. One

of said monitors is a 4k TV. That TV shuts down completely for energy saving
after a while. (I need to turn on the TV via remote to get anywhere.)

On Debian Buster (older Version of Driver, default, can't tell which 
right now)
the display then came back after a few seconds. On Bullseye (460.67-1, 
another

older version too) the display does not come back. The TV reports no signal.

A workaround I found is, changing some settings of the affected display 
in the

display settings (using kde in my case).
I found it helps to either:

* Deactivate the display, save/activate the settings and activate it again.
* Change the framerate of the display and save/activate the settings.

For me fixing this bug is not very important, though it is annoying.

Maybe this information helps you.

Sincerely

Matthias Babisch


-- Package-specific info:
uname -a:
Linux animal 5.10.0-5-amd64 #1 SMP Debian 5.10.24-1 (2021-03-19) x86_64 
GNU/Linux


/proc/version:
Linux version 5.10.0-5-amd64 (debian-ker...@lists.debian.org) (gcc-10 
(Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 
2.35.2) #1 SMP Debian 5.10.24-1 (2021-03-19)


/proc/driver/nvidia/version:
NVRM version: NVIDIA UNIX x86_64 Kernel Module  460.67  Thu Mar 11 
00:11:45 UTC 2021

GCC version:  gcc version 10.2.1 20210110 (Debian 10.2.1-6)

lspci 'display controller [030?]':
28:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP106 
[GeForce GTX 1060 6GB] [10de:1c03] (rev a1) (prog-if 00 [VGA controller])
    Subsystem: ASUSTeK Computer Inc. GP106 [GeForce GTX 1060 6GB] 
[1043:85ab]

    Physical Slot: 4
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR+ FastB2B- DisINTx+
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- 
SERR- 
    Latency: 0
    Interrupt: pin A routed to IRQ 54
    Region 0: Memory at e200 (32-bit, non-prefetchable) [size=16M]
    Region 1: Memory at d000 (64-bit, prefetchable) [size=256M]
    Region 3: Memory at e000 (64-bit, prefetchable) [size=32M]
    Region 5: I/O ports at e000 [size=128]
    Expansion ROM at 000c [virtual] [disabled] [size=128K]
    Capabilities: 
    Kernel driver in use: nvidia
    Kernel modules: nvidia

dmesg:

Device node permissions:
crw-rw+ 1 root video  226,   0 Apr  8 05:29 /dev/dri/card0
crw-rw+ 1 root render 226, 128 Apr  8 05:29 /dev/dri/renderD128
crw-rw-rw-  1 root root   195, 254 Apr  8 05:30 /dev/nvidia-modeset
crw-rw-rw-  1 root root   195,   0 Apr  8 05:30 /dev/nvidia0
crw-rw-rw-  1 root root   195, 255 Apr  8 05:30 /dev/nvidiactl

/dev/dri/by-path:
total 0
lrwxrwxrwx 1 root root  8 Apr  8 05:29 pci-:28:00.0-card -> ../card0
lrwxrwxrwx 1 root root 13 Apr  8 05:29 pci-:28:00.0-render -> 
../renderD128

video:x:44:mb

OpenGL and NVIDIA library files installed:
lrwxrwxrwx 1 root root   15 Mar 17  2019 /etc/alternatives/glx -> 
/usr/lib/nvidia
lrwxrwxrwx 1 root root   49 Dec  7  2018 
/etc/alternatives/glx--libEGL.so-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libEGL.so
lrwxrwxrwx 1 root root   49 Mar 17  2019 
/etc/alternatives/glx--libEGL.so.1-i386-linux-gnu -> 
/usr/lib/mesa-diverted/i386-linux-gnu/libEGL.so.1
lrwxrwxrwx 1 root root   51 Mar 17  2019 
/etc/alternatives/glx--libEGL.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libEGL.so.1
lrwxrwxrwx 1 root root   48 Dec  7  2018 
/etc/alternatives/glx--libGL.so-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGL.so
lrwxrwxrwx 1 root root   48 Dec  7  2018 
/etc/alternatives/glx--libGL.so-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGL.so
lrwxrwxrwx 1 root root   48 Mar 17  2019 
/etc/alternatives/glx--libGL.so.1-i386-linux-gnu -> 
/usr/lib/mesa-diverted/i386-linux-gnu/libGL.so.1
lrwxrwxrwx 1 root root   48 Mar 17  2019 
/etc/alternatives/glx--libGL.so.1-i386-linux-gnu -> 
/usr/lib/mesa-diverted/i386-linux-gnu/libGL.so.1
lrwxrwxrwx 1 root root   50 Mar 17  2019 
/etc/alternatives/glx--libGL.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGL.so.1
lrwxrwxrwx 1 root root   50 Mar 17  2019 
/etc/alternatives/glx--libGL.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGL.so.1
lrwxrwxrwx 1 root root   55 Dec  7  2018 
/etc/alternatives/glx--libGLESv1_CM.so-x86_64-linux-gnu -> 

Bug#981114: nvidia-driver: Fails to display on any monitor change

2021-01-31 Thread David Headland
Control: forwarded -1 
https://forums.developer.nvidia.com/t/fails-to-display-on-any-monitor-change-on-driver-455-and-460-reverting-to-450-things-work-again/167232/2


On 29/01/2021 13:16, Andreas Beckmann wrote:

Control: tag -1 upstream



Please check whether your issue is already reported in the nvidia forums
and if it isn't please follow nvidia's instructions to do this.


I couldn't find anything there, so have created and account and a thread 
as suggested: 
https://forums.developer.nvidia.com/t/fails-to-display-on-any-monitor-change-on-driver-455-and-460-reverting-to-450-things-work-again/167232/2


Thanks again for your help,
-Dave.



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Bug#981114: nvidia-driver: Fails to display on any monitor change

2021-01-29 Thread Andreas Beckmann
Control: tag -1 upstream

On 1/28/21 7:55 AM, David Headland wrote:
> For now, I'm going to switch back to the tesla-450 driver, but I'm very
> happy to run any more tests if you'd like me to. Also, when the packages
> filter through the system far enough for apt to see them, I'll re-test
> with the official ones and confirm this situation.

There should be no difference.

Please check whether your issue is already reported in the nvidia forums
and if it isn't please follow nvidia's instructions to do this.

https://forums.developer.nvidia.com/t/if-you-have-a-problem-please-read-this-first/27131

Thanks

Andreas



Bug#981114: nvidia-driver: Fails to display on any monitor change

2021-01-27 Thread David Headland
Package: nvidia-driver
Version: 460.39-1
Followup-For: Bug #981114


Hi Andreas,

I was unable to find the packages at present, but I understand that they
do take a little while to filter through the system. However, the source
was available, and I had no problem using debuild to create the
(unsigned) packages locally. Installing the new version of all currently
installed packages then running update-glx to select that version and
rebooting, I'm afraid the problem comes back.

I've replied using reportbug so you can see the collected information 
in case that's of use - the test case was to boot up, switch monitor
inputs, and switch back. These are the the old Xorg log fix - ~62s was
the switch away, ~73s was the attempt to switch back. No sync at all
when switching back. Tried to switch to a text console, still no
display, so rebooted.

For now, I'm going to switch back to the tesla-450 driver, but I'm very
happy to run any more tests if you'd like me to. Also, when the packages
filter through the system far enough for apt to see them, I'll re-test
with the official ones and confirm this situation.

All the best,
-Dave.

-- Package-specific info:
uname -a:
Linux scrat 5.10.0-2-amd64 #1 SMP Debian 5.10.9-1 (2021-01-20) x86_64 GNU/Linux

/proc/version:
Linux version 5.10.0-2-amd64 (debian-ker...@lists.debian.org) (gcc-10 (Debian 
10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1) #1 SMP 
Debian 5.10.9-1 (2021-01-20)

/proc/driver/nvidia/version:
NVRM version: NVIDIA UNIX x86_64 Kernel Module  460.39  Thu Jan 21 21:54:06 UTC 
2021
GCC version:  gcc version 10.2.1 20210110 (Debian 10.2.1-6) 

lspci 'display controller [030?]':
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP108 [GeForce GT 
1030] [10de:1d01] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Gigabyte Technology Co., Ltd GP108 [GeForce GT 1030] 
[1458:375c]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- 
Kernel driver in use: nvidia
Kernel modules: nvidia

dmesg:

Device node permissions:
crw-rw+ 1 root video  226,   0 Jan 28 06:34 /dev/dri/card0
crw-rw+ 1 root render 226, 128 Jan 28 06:34 /dev/dri/renderD128
crw-rw-rw-  1 root root   195, 254 Jan 28 06:34 /dev/nvidia-modeset
crw-rw-rw-  1 root root   195,   0 Jan 28 06:34 /dev/nvidia0
crw-rw-rw-  1 root root   195, 255 Jan 28 06:34 /dev/nvidiactl

/dev/dri/by-path:
total 0
lrwxrwxrwx 1 root root  8 Jan 28 06:34 pci-:01:00.0-card -> ../card0
lrwxrwxrwx 1 root root 13 Jan 28 06:34 pci-:01:00.0-render -> ../renderD128
video:x:44:dh,mythtv

OpenGL and NVIDIA library files installed:
lrwxrwxrwx 1 root root   15 Oct 25 11:58 /etc/alternatives/glx -> 
/usr/lib/nvidia
lrwxrwxrwx 1 root root   49 Jan 28 06:13 
/etc/alternatives/glx--libEGL.so-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libEGL.so
lrwxrwxrwx 1 root root   51 Oct 25 11:58 
/etc/alternatives/glx--libEGL.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libEGL.so.1
lrwxrwxrwx 1 root root   48 Jan 28 06:13 
/etc/alternatives/glx--libGL.so-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGL.so
lrwxrwxrwx 1 root root   48 Jan 28 06:13 
/etc/alternatives/glx--libGL.so-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGL.so
lrwxrwxrwx 1 root root   50 Oct 25 11:58 
/etc/alternatives/glx--libGL.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGL.so.1
lrwxrwxrwx 1 root root   50 Oct 25 11:58 
/etc/alternatives/glx--libGL.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGL.so.1
lrwxrwxrwx 1 root root   55 Jan 28 06:13 
/etc/alternatives/glx--libGLESv1_CM.so-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv1_CM.so
lrwxrwxrwx 1 root root   55 Jan 28 06:13 
/etc/alternatives/glx--libGLESv1_CM.so-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv1_CM.so
lrwxrwxrwx 1 root root   57 Oct 25 11:58 
/etc/alternatives/glx--libGLESv1_CM.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv1_CM.so.1
lrwxrwxrwx 1 root root   57 Oct 25 11:58 
/etc/alternatives/glx--libGLESv1_CM.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv1_CM.so.1
lrwxrwxrwx 1 root root   52 Jan 28 06:13 
/etc/alternatives/glx--libGLESv2.so-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv2.so
lrwxrwxrwx 1 root root   52 Jan 28 06:13 
/etc/alternatives/glx--libGLESv2.so-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv2.so
lrwxrwxrwx 1 root root   54 Oct 25 11:58 
/etc/alternatives/glx--libGLESv2.so.2-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv2.so.2
lrwxrwxrwx 1 root root   54 Oct 25 11:58 
/etc/alternatives/glx--libGLESv2.so.2-x86_64-linux-gnu -> 

Bug#981114: nvidia-driver: Fails to display on any monitor change

2021-01-27 Thread Andreas Beckmann
I've just uploaded nvidia-graphics-drivers 460.39-1 to sid, please try
that as well.

Andreas



Bug#981114: nvidia-driver: Fails to display on any monitor change

2021-01-26 Thread David Headland

Hi Andreas,

Thanks very much for the quick reply. I've given this a try as 
requested: nvidia-tesla-450-driver and dependencies installed, then ran 
"update-glx --config nvidia" and selected /usr/lib/nvidia/tesla-450 and 
rebooted after it had recreated the initrd.


On reboot, I checked the X server log to ensure it had selected the 
correct version, and "450.102.04" was reported, so that looked good. At 
that point, I tried switching away to a new display then switching back, 
removing and re-inserting cables, and forcing a DPMS off state using 
xset, and each time the display came back without any problems, so it 
looks like the CVE fix isn't the cause of the problems.


Let me know if I can try anything else, and thanks again for your efforts.

All the best,
-Dave.

On 26/01/2021 19:26, Andreas Beckmann wrote:

Hi David,

could you try nvidia-tesla-450-driver 450.102.04-1 from sid?
It is installable along the regular driver and you can switch between
the different drivers with update-glx (and then reboot to load the other
kernel module and libraries).

This is just to check whether the 450 series got "broken" too with the
latest version (which includes a CVE fix).

Thanks

Andreas

PS: If it is still working fine, we might keep the tesla-450 driver in
bullseye along tesla-460.





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Bug#981114: nvidia-driver: Fails to display on any monitor change

2021-01-26 Thread Andreas Beckmann
Hi David,

could you try nvidia-tesla-450-driver 450.102.04-1 from sid?
It is installable along the regular driver and you can switch between
the different drivers with update-glx (and then reboot to load the other
kernel module and libraries).

This is just to check whether the 450 series got "broken" too with the
latest version (which includes a CVE fix).

Thanks

Andreas

PS: If it is still working fine, we might keep the tesla-450 driver in
bullseye along tesla-460.



Bug#981114: nvidia-driver: Fails to display on any monitor change

2021-01-26 Thread David Headland
Package: nvidia-driver
Followup-For: Bug #981114

Dear Maintainer,

As a comparison, please find below logs from driver 450 which is working
fine. Here, the system was booted and displayed fine. IT was left for
some time, DPMS kicked in from the display manager timing out, and was
re-woken at around 2121s. 

Display inputs on the monitor were switched at ~2168s, and reverted
soon after, with no problems at all.

All the best,
-Dave.

-- Package-specific info:
uname -a:
Linux scrat 5.10.0-2-amd64 #1 SMP Debian 5.10.9-1 (2021-01-20) x86_64 GNU/Linux

/proc/version:
Linux version 5.10.0-2-amd64 (debian-ker...@lists.debian.org) (gcc-10 (Debian 
10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1) #1 SMP 
Debian 5.10.9-1 (2021-01-20)

/proc/driver/nvidia/version:
NVRM version: NVIDIA UNIX x86_64 Kernel Module  450.80.02  Wed Sep 23 01:13:39 
UTC 2020
GCC version:  gcc version 10.2.1 20210110 (Debian 10.2.1-6) 

lspci 'display controller [030?]':
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP108 [GeForce GT 
1030] [10de:1d01] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Gigabyte Technology Co., Ltd GP108 [GeForce GT 1030] 
[1458:375c]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- 
Kernel driver in use: nvidia
Kernel modules: nvidia

dmesg:

Device node permissions:
crw-rw+ 1 root video  226,   0 Jan 26 16:23 /dev/dri/card0
crw-rw+ 1 root render 226, 128 Jan 26 16:23 /dev/dri/renderD128
crw-rw-rw-  1 root root   195, 254 Jan 26 16:23 /dev/nvidia-modeset
crw-rw-rw-  1 root root   195,   0 Jan 26 16:23 /dev/nvidia0
crw-rw-rw-  1 root root   195, 255 Jan 26 16:23 /dev/nvidiactl

/dev/dri/by-path:
total 0
lrwxrwxrwx 1 root root  8 Jan 26 16:23 pci-:01:00.0-card -> ../card0
lrwxrwxrwx 1 root root 13 Jan 26 16:23 pci-:01:00.0-render -> ../renderD128
video:x:44:dh,mythtv

OpenGL and NVIDIA library files installed:
lrwxrwxrwx 1 root root   15 Oct 25 11:58 /etc/alternatives/glx -> 
/usr/lib/nvidia
lrwxrwxrwx 1 root root   51 Oct 25 11:58 
/etc/alternatives/glx--libEGL.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libEGL.so.1
lrwxrwxrwx 1 root root   50 Oct 25 11:58 
/etc/alternatives/glx--libGL.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGL.so.1
lrwxrwxrwx 1 root root   50 Oct 25 11:58 
/etc/alternatives/glx--libGL.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGL.so.1
lrwxrwxrwx 1 root root   57 Oct 25 11:58 
/etc/alternatives/glx--libGLESv1_CM.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv1_CM.so.1
lrwxrwxrwx 1 root root   57 Oct 25 11:58 
/etc/alternatives/glx--libGLESv1_CM.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv1_CM.so.1
lrwxrwxrwx 1 root root   54 Oct 25 11:58 
/etc/alternatives/glx--libGLESv2.so.2-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv2.so.2
lrwxrwxrwx 1 root root   54 Oct 25 11:58 
/etc/alternatives/glx--libGLESv2.so.2-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv2.so.2
lrwxrwxrwx 1 root root   44 Oct 25 11:58 
/etc/alternatives/glx--libGLX_indirect.so.0-x86_64-linux-gnu -> 
/usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
lrwxrwxrwx 1 root root   44 Oct 25 11:58 
/etc/alternatives/glx--libGLX_indirect.so.0-x86_64-linux-gnu -> 
/usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
lrwxrwxrwx 1 root root   38 Oct 25 11:58 
/etc/alternatives/glx--libglxserver_nvidia.so -> 
/usr/lib/nvidia/libglxserver_nvidia.so
lrwxrwxrwx 1 root root   51 Oct 25 11:58 
/etc/alternatives/glx--libnvidia-cfg.so.1-x86_64-linux-gnu -> 
/usr/lib/x86_64-linux-gnu/nvidia/libnvidia-cfg.so.1
lrwxrwxrwx 1 root root   42 Oct 25 11:58 
/etc/alternatives/glx--nvidia-blacklists-nouveau.conf -> 
/etc/nvidia/nvidia-blacklists-nouveau.conf
lrwxrwxrwx 1 root root   36 Oct 25 11:58 
/etc/alternatives/glx--nvidia-bug-report.sh -> 
/usr/lib/nvidia/nvidia-bug-report.sh
lrwxrwxrwx 1 root root   39 Oct 25 11:58 
/etc/alternatives/glx--nvidia-drm-outputclass.conf -> 
/etc/nvidia/nvidia-drm-outputclass.conf
lrwxrwxrwx 1 root root   28 Oct 25 11:58 
/etc/alternatives/glx--nvidia-load.conf -> /etc/nvidia/nvidia-load.conf
lrwxrwxrwx 1 root root   32 Oct 25 11:58 
/etc/alternatives/glx--nvidia-modprobe.conf -> /etc/nvidia/nvidia-modprobe.conf
lrwxrwxrwx 1 root root   29 Oct 25 11:58 
/etc/alternatives/glx--nvidia_drv.so -> /usr/lib/nvidia/nvidia_drv.so
lrwxrwxrwx 1 root root   23 Jan 26 16:12 /etc/alternatives/nvidia -> 
/usr/lib/nvidia/current
lrwxrwxrwx 1 root root   59 Jan 26 16:12 
/etc/alternatives/nvidia--libEGL_nvidia.so.0-x86_64-linux-gnu -> 
/usr/lib/x86_64-linux-gnu/nvidia/current/libEGL_nvidia.so.0
lrwxrwxrwx 1 root root   65 Jan 26 16:12 

Bug#981114: nvidia-driver: Fails to display on any monitor change

2021-01-26 Thread David Headland
Package: nvidia-driver
Version: 460.32.03-2
Severity: important

Dear Maintainer,

I'm having a problem that renders the nvidia driver versions 455 and 460
that have been available on Debian unusable to me. When installed, the
system usually boots up fine and appears to work until something happens
that affects the link to the monitor - this could be removing the HDMI
cable, DPMS being activated for screen blanking, or switching to a
different input on the monitor (as I have two computers connected to
it).

At that point, when the link is restored (for example by reconnecting
the HDMI cable, moving the mouse or switching back to the HDMI input for
this computer), no sync is seen again. Examining the X logs, it appears
that the monitor is seen multiple times at this point, but never gains
sync. Switching to a VC and disconnecting and reconnecting the cable has
very occasionally restored the display, but often it doesn't and a
reboot is required.

Switching back to version 450 as was in testing until a week or two ago,
none of these problems exist. Despite this, just in case, I've tried
changing the HDMI cable, and 460 still exhibits the same problems. I've
had to switch back to 450 to enable work to continue, as I have to
regularly switch inputs on this computer.

I'm unsure what information would be useful to progress, but I'm very
happy to provide any information requested or test any changes. Just let
me know and I'll get back to you as soon as possible.

I've attached an example of the Xorg.0.log after switching inputs away
and back to the computer affected as a starting point. The switch away
was the event at ~15.6s, the switch back was ~77.2s, switch to a VC was
93.5s (this did not result in any usable display) and reboot was ~159s.

I don't currently have an Xorg log from v450, but once the bug report is
accepted I'll switch back and attach it as a comparison.

Thanks very much for your time,
-Dave.


-- Package-specific info:
uname -a:
Linux scrat 5.10.0-2-amd64 #1 SMP Debian 5.10.9-1 (2021-01-20) x86_64 GNU/Linux

/proc/version:
Linux version 5.10.0-2-amd64 (debian-ker...@lists.debian.org) (gcc-10 (Debian 
10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1) #1 SMP 
Debian 5.10.9-1 (2021-01-20)

/proc/driver/nvidia/version:
NVRM version: NVIDIA UNIX x86_64 Kernel Module  460.32.03  Sun Dec 27 19:00:34 
UTC 2020
GCC version:  gcc version 10.2.1 20210110 (Debian 10.2.1-6) 

lspci 'display controller [030?]':
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP108 [GeForce GT 
1030] [10de:1d01] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Gigabyte Technology Co., Ltd GP108 [GeForce GT 1030] 
[1458:375c]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- 
Kernel driver in use: nvidia
Kernel modules: nvidia

dmesg:

Device node permissions:
crw-rw+ 1 root video  226,   0 Jan 26 15:45 /dev/dri/card0
crw-rw+ 1 root render 226, 128 Jan 26 15:45 /dev/dri/renderD128
crw-rw-rw-  1 root root   195, 254 Jan 26 15:45 /dev/nvidia-modeset
crw-rw-rw-  1 root root   195,   0 Jan 26 15:45 /dev/nvidia0
crw-rw-rw-  1 root root   195, 255 Jan 26 15:45 /dev/nvidiactl

/dev/dri/by-path:
total 0
lrwxrwxrwx 1 root root  8 Jan 26 15:45 pci-:01:00.0-card -> ../card0
lrwxrwxrwx 1 root root 13 Jan 26 15:45 pci-:01:00.0-render -> ../renderD128
video:x:44:dh,mythtv

OpenGL and NVIDIA library files installed:
lrwxrwxrwx 1 root root   15 Oct 25 11:58 /etc/alternatives/glx -> 
/usr/lib/nvidia
lrwxrwxrwx 1 root root   51 Oct 25 11:58 
/etc/alternatives/glx--libEGL.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libEGL.so.1
lrwxrwxrwx 1 root root   50 Oct 25 11:58 
/etc/alternatives/glx--libGL.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGL.so.1
lrwxrwxrwx 1 root root   50 Oct 25 11:58 
/etc/alternatives/glx--libGL.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGL.so.1
lrwxrwxrwx 1 root root   57 Oct 25 11:58 
/etc/alternatives/glx--libGLESv1_CM.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv1_CM.so.1
lrwxrwxrwx 1 root root   57 Oct 25 11:58 
/etc/alternatives/glx--libGLESv1_CM.so.1-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv1_CM.so.1
lrwxrwxrwx 1 root root   54 Oct 25 11:58 
/etc/alternatives/glx--libGLESv2.so.2-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv2.so.2
lrwxrwxrwx 1 root root   54 Oct 25 11:58 
/etc/alternatives/glx--libGLESv2.so.2-x86_64-linux-gnu -> 
/usr/lib/mesa-diverted/x86_64-linux-gnu/libGLESv2.so.2
lrwxrwxrwx 1 root root   44 Oct 25 11:58 
/etc/alternatives/glx--libGLX_indirect.so.0-x86_64-linux-gnu -> 
/usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
lrwxrwxrwx 1 root root   44 Oct 25 11:58