<div dir="ltr">It didn't work. I've disabled the GPU acceleration on Firefox,but the video streams move forward only if the audio is off. <br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Nov 7, 2023 at 11:05 PM Mario Marietto <<a href="mailto:marietto2008@gmail.com" target="_blank">marietto2008@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Firefox,Chrome = video stream ok only if audio is disabled.</div><div>smplayer = blackscreen</div><div>vlc = video stream ok,no audio<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Nov 7, 2023 at 10:52 PM Jeffrey Walton <<a href="mailto:noloader@gmail.com" target="_blank">noloader@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Tue, Nov 7, 2023 at 4:43 PM Mario Marietto <<a href="mailto:marietto2008@gmail.com" target="_blank">marietto2008@gmail.com</a>> wrote:<br>
><br>
> Hello.<br>
><br>
> I’ve upgraded Ubuntu 23.04 to 23.10 recently. On my Ubuntu 23.10 I’m using kernel 6.5.0-10-generic and I’ve installed the nVidia driver version 535.129.03. (my nvidia gpu is the RTX 2080 ti ; my cpu is the intel I9). I don't have exactly the same bug of this :<br>
><br>
> <a href="https://bugs.launchpad.net/ubuntu/+source/broadcom-sta/+bug/2030978?comments=all" rel="noreferrer" target="_blank">https://bugs.launchpad.net/ubuntu/+source/broadcom-sta/+bug/2030978?comments=all</a><br>
><br>
> because the error in the Ubuntu bug report is for a different kernel module. But the underlying cause is probably the same.<br>
><br>
> Possibly the code for the nvidia-uvm module is designed for kernel versions < 6.5, so when Ubuntu upgraded to Linux kernel 6.5, it broke some modules because of changes to UBSAN in Linux 6.5 which causes modules such as nvidia-uvm to need patches to be compatible with Linux 6.5, but either nvidia has not yet provided a version of nvidia-uvm that is compatible with Linux 6.5 or Ubuntu neglected to apply an updated version from nvidia that is compatible with Linux 6.5.<br>
><br>
> I didn’t see this error on Ubuntu 23.04,maybe because it does not use the kernel 6.5 by default,but 23.10 does.<br>
><br>
> I see a lot of those errors when I issue the command “dmesg” and any audio-video streamings don’t flow.<br>
><br>
> At the beginning I've thought to revert the commit in 6.5 mentioned in the bug report that caused a similar problem in the broadcom-wl module:<br>
><br>
> <a href="https://bugs.launchpad.net/ubuntu/+source/broadcom-sta/+bug/2030978" rel="noreferrer" target="_blank">https://bugs.launchpad.net/ubuntu/+source/broadcom-sta/+bug/2030978</a><br>
><br>
> In there it mentions the commit in 6.5.y causing the trouble:<br>
><br>
> On Linux 6.5, due to commit 2d47c6956ab3 ("ubsan: Tighten UBSAN_BOUNDSon GCC"), flexible trailing arrays declared like \whatever_t foo[1];\will generate warnings when CONFIG_UBSAN & co. is enabled.<br>
><br>
> The commit is here:<br>
><br>
> <a href="https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.5.y&id=2d47c6956ab3c8b580a59d7704aab3e2a4882b6c" rel="noreferrer" target="_blank">https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.5.y&id=2d47c6956ab3c8b580a59d7704aab3e2a4882b6c</a><br>
><br>
> BUT I don't use a broadcom-wl,so I've disabled the UBSAN parameter and I've recompiled and installed kernel 6.5.0 and the nvidia-driver worked fine :<br>
><br>
> <a href="https://pastebin.ubuntu.com/p/7DYsbJwNbT/" rel="noreferrer" target="_blank">https://pastebin.ubuntu.com/p/7DYsbJwNbT/</a><br>
><br>
> (It does not work with the kernel 6.5.3. But only with 6.5.0)<br>
><br>
> # uname -a<br>
> Linux Z390-AORUS-PRO-DEST 6.5.0 #1 SMP PREEMPT_DYNAMIC Tue Nov 7 16:26:55 CET 2023 x86_64 x86_64 x86_64 GNU/Linux<br>
><br>
> What's the problem now ?<br>
><br>
> Even if I have been able to fix the previous error,at the moment I can't watch any video streaming,online or offline. Simply it does not flow at all. Any kind of video flow is frozen at the beginning of the stream. I took a look at the dmesg messages and I saw the ugly error that you see below. Maybe it is correlated with the problem :<br>
><br>
> <a href="https://pastebin.ubuntu.com/p/SyhrqwKncZ/" rel="noreferrer" target="_blank">https://pastebin.ubuntu.com/p/SyhrqwKncZ/</a><br>
><br>
> What to do ?<br>
><br>
> UPDATE :<br>
><br>
> I've discovered a very odd behavior. If I exclude the audio from the video, the video stream moves on. If I keep the audio on, the video stream freezes.<br>
><br>
<br>
It is not clear to me what program is having trouble. It sounds like<br>
you should disable GPU acceleration until the nVidia driver is<br>
updated. Or the wrinkles are ironed out.<br>
<br>
I'm guessing one of the problems is your web browser. In Firefox,<br>
here's how you do it:<br>
<<a href="https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration#w_turning-off-hardware-acceleration" rel="noreferrer" target="_blank">https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration#w_turning-off-hardware-acceleration</a>>.<br>
<br>
Jeff<br>
<br>
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</blockquote></div><br clear="all"><br><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature">Mario.<br></div>
</blockquote></div><br clear="all"><br><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature">Mario.<br></div>