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Since setting the grub setting to GRUB_CMDLINE_LINUX_DEFAULT="nomodeset" to fix the problem I experimented with the nouveau parameters and found another workaround which is a better solution as it still leaves the original video drivers loaded (where as the
setting nomodeset replaces the original video drivers with the standard VGA driver).<br>
Setting the grub setting to GRUB_CMDLINE_LINUX_DEFAULT="nouveau.NvMXMDCB=0" fixes the freezing.</div>
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This does not fix the 2 messages that are repeated regularly but avoids the freezing.</div>
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The 2 messages that are a problem are:</div>
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nouveau 0000:01:00.0: gr: 00100000 [] ch 3 [001fa70000 gnome-shell[1509]] subc 3 class 8597 mthd 1304 data 1d1c1b1a</div>
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nouveau 0000:01:00.0: gr: DATA_ERROR 00000012 [RT_LINEAR_WITH_ZETA]</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Flavio Bagnato <flaviobagnato@gmail.com><br>
<b>Sent:</b> 12 June 2024 16:51<br>
<b>To:</b> nouveau@lists.freedesktop.org <nouveau@lists.freedesktop.org><br>
<b>Subject:</b> nouveau freezing desktop - Ubuntu 24.04 - NVIDIA GeForce GT 330M</font>
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<div>Hello,</div>
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<div>I recently installed Ubuntu 24.04 on a MacBook Pro (Mid-2010) running a NVIDIA GeForce GT 330M adapter.</div>
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<div>Unfortunately the computer is constantly freezing.</div>
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<div>If I pass "nomodeset" to grub, the nouveau driver is not used and the computer does not freeze so it seems to be related to the nouveau driver.</div>
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<div>I am wanting to know if there are any parameters I can pass to nouveau to resolve the freezing.</div>
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<div>I have tried temporarily replacing nomodeset with nouveau.noaccel=1 then with nouveau.nofbaccel=1 but both caused the booting to freeze.
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<div>I have also tried temporarily replacing nomodeset with nouveau.modeset=0 to disable nouveau but got a blank screen whilst booting (I've seen this blank screen reported by others on the web).
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<div>I should be reporting a bug I assume but when the computer freezes I have to turn the computer off and therefore dmesg is not an option to provide logs.</div>
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<div>I have noticed in dmesg however 2 messages that read:</div>
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<p>nouveau 0000:01:00.0: gr: 00100000 [] ch 3 [001fa70000 gnome-shell[1509]] subc 3 class 8597 mthd 1304 data 1d1c1b1a</p>
<p>followed by......</p>
<p>nouveau 0000:01:00.0: gr: DATA_ERROR 00000012 [RT_LINEAR_WITH_ZETA]</p>
<p>These 2 messages are repeated regularly.</p>
<p>Is there anything I can do (like pass any parameters) that may resolve the computer freezing?</p>
<p>Regards,</p>
<p>Flavio<br>
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