[RTX6000][20.04.01] RTX6000 is not supported by nouveau

[William Hsu]

[Summary]
The system always stop at "Initramfs unpacking failed: Decoding failed" after selecting "OEM install or Ubuntu option (20.04.01). The issue can be observed on the RTX6000, but Nvidia P620 cannot reproduce it. The issue might relate to the graphic driver.

[Steps to reproduce]
1. Plug the USB key which has the 20.04.01 build
2. Power on the system
3. Select USB drive to launch the grub menu
4. Select "OEM installation" or "Ubuntu" option to run the installation
5. Check if the system can run the installation

[Expected result]
The system can run the installation properly

[Actual result]
The system always stops at "Initramfs unpacking failed: Decoding failed" after selecting "OEM installation" or "Ubuntu" option

[Failure rate]
3/3

[Additional information]
system-manufacturer: LENOVO
system-product-name: P920
CPU: Intel(R) Xeon(R) Gold 6230N CPU @ 2.30GHz
GPU: nVidia - 10de:1e30

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1890257/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[William Hsu (williamhsu)]

Thanks for Rex's suggestion/information.
The system can proceed with the Ubuntu system installation after selecting the "Ubuntu (Safe graphics)" option on the grub menu.

[William Hsu (williamhsu)]

A side effect is observed.
After the fresh installation with the safe graphics mode, the system cannot boot into the desktop. It shows a black screen with the screen afterimage.

## Some ERRORs on the dmesg ##
[ 4.395661] Adding 2097148k swap on /swapfile. Priority:-2 extents:6 across:2260988k SSFS
[ 4.400734] systemd[1]: Activated swap /swapfile.
[ 4.400774] systemd[1]: Reached target Swap.
[ 4.485206] systemd[1]: Started Journal Service.
[ 4.492408] systemd-journald[983]: Received client request to flush runtime journal.
[ 4.781984] ioatdma: Intel(R) QuickData Technology Driver 5.00
[ 4.782280] ioatdma 0000:00:04.0: enabling device (0004 -> 0006)
[ 4.797068] ioatdma 0000:00:04.1: enabling device (0004 -> 0006)
[ 4.812829] ioatdma 0000:00:04.2: enabling device (0004 -> 0006)
[ 4.829266] ioatdma 0000:00:04.3: enabling device (0004 -> 0006)
[ 4.842555] ioatdma 0000:00:04.4: enabling device (0004 -> 0006)
[ 4.856022] ioatdma 0000:00:04.5: enabling device (0004 -> 0006)
[ 4.869067] ioatdma 0000:00:04.6: enabling device (0004 -> 0006)
[ 4.882814] ioatdma 0000:00:04.7: enabling device (0004 -> 0006)
[ 4.895948] ioatdma 0000:80:04.0: enabling device (0004 -> 0006)
[ 4.914060] ioatdma 0000:80:04.1: enabling device (0004 -> 0006)
[ 4.927259] ioatdma 0000:80:04.2: enabling device (0004 -> 0006)
[ 4.938517] ioatdma 0000:80:04.3: enabling device (0004 -> 0006)
[ 4.950204] ioatdma 0000:80:04.4: enabling device (0004 -> 0006)
[ 4.961583] ioatdma 0000:80:04.5: enabling device (0004 -> 0006)
[ 4.976231] ioatdma 0000:80:04.6: enabling device (0004 -> 0006)
[ 4.985987] RAPL PMU: API unit is 2^-32 Joules, 2 fixed counters, 655360 ms ovfl timer
[ 4.985988] RAPL PMU: hw unit of domain package 2^-14 Joules
[ 4.985989] RAPL PMU: hw unit of domain dram 2^-16 Joules
[ 4.989200] ioatdma 0000:80:04.7: enabling device (0004 -> 0006)
[ 5.014957] cryptd: max_cpu_qlen set to 1000
[ 5.024763] AVX2 version of gcm_enc/dec engaged.
[ 5.024764] AES CTR mode by8 optimization enabled
[ 5.061518] checking generic (a0000000 870000) vs hw (a0000000 10000000)
[ 5.061520] fb0: switching to nouveaufb from EFI VGA
[ 5.061852] Console: switching to colour dummy device 80x25
[ 5.062143] nouveau 0000:3b:00.0: NVIDIA TU102 (162000a1)
[ 5.129544] nouveau 0000:3b:00.0: bios: version 90.02.30.00.02
[ 5.130601] nouveau 0000:3b:00.0: fb: 24576 MiB GDDR6
[ 5.171088] snd_hda_intel 0000:00:1f.3: enabling device (0140 -> 0142)
[ 5.171464] snd_hda_intel 0000:3b:00.1: enabling device (0140 -> 0142)
[ 5.171507] snd_hda_intel 0000:3b:00.1: Disabling MSI
[ 5.171562] snd_hda_intel 0000:3b:00.1: Handle vga_switcheroo audio client
[ 5.171635] [TTM] Zone kernel: Available graphics memory: 49303280 KiB
[ 5.171636] [TTM] Zone dma32: Available graphics memory: 2097152 KiB
[ 5.171637] [TTM] Initializing pool allocator
[ 5.171649] [TTM] Initializing DMA pool allocator
[ 5.171666] nouveau 0000:3b:00.0: DRM: VRAM: 24576 MiB
[ 5.171667] nouveau 0000:3b:00.0: DRM: GART: 536870912 MiB
[ 5.171670] nouveau 0000:3b:00.0: DRM: BIT table 'A' not found
[ 5.171673] nouveau 0000:3b:00....

[Rex Tsai (chihchun)]

The NVIDIA RTX6000 is not supporetd by the nouveau, and should be supported when the users use the nvidia proprietary driver from ubuntu 3rd party drivers.

The expected behavior would be
- the user use "safe graphie" mode to install the system, and install "3rd party drivers."
- reboot and the user should have the proprietary driver installed.

we can lower the priority .