kernel-5.7.6: nouveau issue on RTX2080 TI

[Frédéric Pierret]

Hi,
I'm having an issue on kernel-latest where a commit https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.7.6&id=bfe0bc40e53ac3198b6696282f83665757f26f67 has been introduced to "Fixes display not coming up on high-bandwidth HDMI displays under a number of configurations.". Well in my case it does not what it's said. I'm having a nice black screen. I just build the same kernel with commit reverted and it works.

Any one has encountered this issue with NVIDIA card?

I'll try to investigate the problem and fix it. Probably related to Xen (again for those cards RTX).

Best,
Frédéric

[Jason M]

I had a similar issue with a RTX2070.  I am not sure if the issue was within dom0 using the Nvidia drivers (not Nouveau) or a VM using the Nouveau drivers (Qubes 4.1 development build).  Regardless I increased the memory to dom0 and the issue disappeared.  I can provide further details over the weekend as I am working on attempting to get the Nividia drivers working in the VM.

If you have any insights on Issues I am working on in attempts to get Nividia driver working in VM please let me know.  I will post them within another thread.

Regards,

Jason