Public bug reported:
Ubuntu 21.10 can NOT enter desktop after:
1) install Nvidia 470
2) blacklist nouveau driver
------------------
why blacklist nouveau?
External HDMI monitor render 0.5 frames/second when turn off built-in
monitor. Render normally if both build-in and external HDMI monitor are
on.
Blacklisting nouveau fix `0.5 frames/s` problem in Ubuntu 21.04, but
cannot enter desktop in Ubuntu 21.10
-------------------
why not use Ubuntu 21.04 ?
Ubuntu 21.04 render incorrectly, for example, if:
1) built-in monitor: scale=125%, resolution=4000x2000
2) external monitor: scale=100%, resulution=2000x1000
Ubuntu 21.10 render correctly.
-----------
$ lspci
00:00.0 Host bridge: Intel Corporation Device 9b44 (rev 02)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1f99 (rev a1)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500
v5/6th Gen Core Processor Thermal Subsystem (rev 02)
...
** Affects: ubuntu
Importance: Undecided
Status: New
** Description changed:
Ubuntu 21.10 can NOT enter desktop after:
1) install Nvidia 470
2) blacklisting nouveau driver
------------------
why blacklist nouveau?
External HDMI monitor render 0.5 frames/second when turn off built-in
monitor. Render normally if both build-in and external HDMI monitor are
on.
Blacklisting nouveau fix `0.5 frames/s` problem in Ubuntu 21.04, but
cause system failture in Ubuntu 21.10
+
+ -----------
+ ```
+ $ lspci
+ 00:00.0 Host bridge: Intel Corporation Device 9b44 (rev 02)
+ 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics (rev 05)
+ 01:00.0 VGA compatible controller: NVIDIA Corporation Device 1f99 (rev a1)
+ 00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200
v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 02)
+ ...
+ ```
** Description changed:
Ubuntu 21.10 can NOT enter desktop after:
1) install Nvidia 470
2) blacklisting nouveau driver
------------------
why blacklist nouveau?
External HDMI monitor render 0.5 frames/second when turn off built-in
monitor. Render normally if both build-in and external HDMI monitor are
on.
Blacklisting nouveau fix `0.5 frames/s` problem in Ubuntu 21.04, but
cause system failture in Ubuntu 21.10
-----------
- ```
$ lspci
00:00.0 Host bridge: Intel Corporation Device 9b44 (rev 02)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1f99 (rev a1)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200
v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 02)
...
- ```
** Description changed:
Ubuntu 21.10 can NOT enter desktop after:
1) install Nvidia 470
2) blacklisting nouveau driver
------------------
why blacklist nouveau?
External HDMI monitor render 0.5 frames/second when turn off built-in
monitor. Render normally if both build-in and external HDMI monitor are
on.
Blacklisting nouveau fix `0.5 frames/s` problem in Ubuntu 21.04, but
cause system failture in Ubuntu 21.10
+ -------------------
+
+ why not use Ubuntu 21.04 ?
+
+ Ubuntu 21.04 render incorrectly, for example, if:
+ 1) built-in monitor: scale=125%, resolution=4000x2000
+ 2) external monitor: scale=100%, resulution=2000x1000
+
+ Ubuntu 21.10 render correctly.
+
+
-----------
$ lspci
00:00.0 Host bridge: Intel Corporation Device 9b44 (rev 02)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1f99 (rev a1)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200
v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 02)
...
** Summary changed:
- 21.10 blacklisting nouveau driver causes system failure
+ 21.10 cannot enter desktop after blacklist nouveau driver
** Description changed:
Ubuntu 21.10 can NOT enter desktop after:
1) install Nvidia 470
- 2) blacklisting nouveau driver
+ 2) blacklist nouveau driver
------------------
why blacklist nouveau?
External HDMI monitor render 0.5 frames/second when turn off built-in
monitor. Render normally if both build-in and external HDMI monitor are
on.
Blacklisting nouveau fix `0.5 frames/s` problem in Ubuntu 21.04, but
cause system failture in Ubuntu 21.10
-------------------
why not use Ubuntu 21.04 ?
Ubuntu 21.04 render incorrectly, for example, if:
1) built-in monitor: scale=125%, resolution=4000x2000
2) external monitor: scale=100%, resulution=2000x1000
Ubuntu 21.10 render correctly.
-
-----------
$ lspci
00:00.0 Host bridge: Intel Corporation Device 9b44 (rev 02)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1f99 (rev a1)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200
v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 02)
...
** Description changed:
Ubuntu 21.10 can NOT enter desktop after:
1) install Nvidia 470
2) blacklist nouveau driver
------------------
why blacklist nouveau?
External HDMI monitor render 0.5 frames/second when turn off built-in
monitor. Render normally if both build-in and external HDMI monitor are
on.
Blacklisting nouveau fix `0.5 frames/s` problem in Ubuntu 21.04, but
- cause system failture in Ubuntu 21.10
+ cannot enter desktop in Ubuntu 21.10
-------------------
why not use Ubuntu 21.04 ?
Ubuntu 21.04 render incorrectly, for example, if:
1) built-in monitor: scale=125%, resolution=4000x2000
2) external monitor: scale=100%, resulution=2000x1000
Ubuntu 21.10 render correctly.
-----------
$ lspci
00:00.0 Host bridge: Intel Corporation Device 9b44 (rev 02)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1f99 (rev a1)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200
v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 02)
...
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https://bugs.launchpad.net/bugs/1955965
Title:
21.10 cannot enter desktop after blacklist nouveau driver
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