** Changed in: oem-priority Assignee: jeremyszu (os369510) => Dirk Su (dirksu)
** Description changed: RTD3 is a nvidia GPU feature to support runtime suspend. On-demand would be a X offloading feature. They are independent, according to discussion on https://github.com/tseliot/ubuntu-drivers-common/issues/55. Some parts need to be adjusted, e.g. ``` - # If we are dealing with NVIDIA PRIME, and runtimepm - # is supported, enable it - if (os.path.isfile('/run/nvidia_runtimepm_supported') and - os.path.isfile('/usr/bin/prime-select')): - print('Trying to select the on-demand PRIME profile') - try: - subprocess.call(['prime-select', 'on-demand']) - except: - pass - - # Create the override file for gpu-manager - with open('/etc/u-d-c-nvidia-runtimepm-override', 'w') as f: - f.write('# File created by ubuntu-drivers\n') + # If we are dealing with NVIDIA PRIME, and runtimepm + # is supported, enable it + if (os.path.isfile('/run/nvidia_runtimepm_supported') and + os.path.isfile('/usr/bin/prime-select')): + print('Trying to select the on-demand PRIME profile') + try: + subprocess.call(['prime-select', 'on-demand']) + except: + pass + + # Create the override file for gpu-manager + with open('/etc/u-d-c-nvidia-runtimepm-override', 'w') as f: + f.write('# File created by ubuntu-drivers\n') ``` + --- + + [Impact] + + * Ubuntu will set GPU mode to performance as default which may use more power + * User can't use GPU for other purpose (eg: deep-learning) if RTD3 is not supported + * According to Nvidia README, the RTD3 doesn't support on non-laptop machine + + [Test Plan] + + * Install 20.04.3 with "Third-party packages". After the installation, reboot the system. Execute "prime-select query" should get "on-demand" + * On non-laptop machine. Can set GPU mode to on-demand + * On laptop with GPU in runtime PM support list. Set GPU mode to on-demand and Nvidia driver is loaded with "NVreg_DynamicPowerManagement=0x02" + + [Where problems could occur] + + * on-demand mode supported after nvidia driver 450. And focal does not have nvidia driver lower than 450. + * With GPU supported RTD3 not able enable runtime PM on non-laptop. But based on the Nvidia README, this case shall not happened. + + [Other Info] + + Changelogs: + + nvidia-prime (0.8.16~0.20.04.2) focal; urgency=medium + + [ Jeremy Szu ] + * Set on-demand mode as default nvidia mode (LP: #1942307) + + [ Alberto Milone ] + * prime-select: + - Detect chassis type and enable RTD3 only + on laptops (LP: #1942788). + - on-demand mode doesn't need to depend on + RTD3 (LP: #1942789). + - Use bootvga detection when last_gfx_boot + is not available. + - Don't check the current profile when setting + a profile (LP: #1946476). + - Catch BrokenPipeError. + - Use bootvga detection when last_gfx_boot is + not available. + + nvidia-prime (0.8.16.2~0.21.04.1) hirsute; urgency=medium + + [ Jeremy Szu ] + * Set on-demand mode as default nvidia mode (LP: #1942307) + + [ Alberto Milone ] + * prime-select: + - Detect chassis type and enable RTD3 only + on laptops (LP: #1942788). + - on-demand mode doesn't need to depend on + RTD3 (LP: #1942789). + - Use bootvga detection when last_gfx_boot + is not available. + - Don't check the current profile when setting + a profile (LP: #1946476). + X-HWE-Bug: Bug #1946434 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-prime in Ubuntu. https://bugs.launchpad.net/bugs/1942789 Title: On-demand and RTD3 need to be separated Status in OEM Priority Project: Triaged Status in nvidia-prime package in Ubuntu: Fix Released Status in ubuntu-drivers-common package in Ubuntu: In Progress Status in nvidia-prime source package in Focal: New Status in ubuntu-drivers-common source package in Focal: New Status in nvidia-prime source package in Hirsute: New Status in ubuntu-drivers-common source package in Hirsute: New Bug description: RTD3 is a nvidia GPU feature to support runtime suspend. On-demand would be a X offloading feature. They are independent, according to discussion on https://github.com/tseliot/ubuntu-drivers-common/issues/55. Some parts need to be adjusted, e.g. ``` # If we are dealing with NVIDIA PRIME, and runtimepm # is supported, enable it if (os.path.isfile('/run/nvidia_runtimepm_supported') and os.path.isfile('/usr/bin/prime-select')): print('Trying to select the on-demand PRIME profile') try: subprocess.call(['prime-select', 'on-demand']) except: pass # Create the override file for gpu-manager with open('/etc/u-d-c-nvidia-runtimepm-override', 'w') as f: f.write('# File created by ubuntu-drivers\n') ``` --- [Impact] * Ubuntu will set GPU mode to performance as default which may use more power * User can't use GPU for other purpose (eg: deep-learning) if RTD3 is not supported * According to Nvidia README, the RTD3 doesn't support on non-laptop machine [Test Plan] * Install 20.04.3 with "Third-party packages". After the installation, reboot the system. Execute "prime-select query" should get "on-demand" * On non-laptop machine. Can set GPU mode to on-demand * On laptop with GPU in runtime PM support list. Set GPU mode to on-demand and Nvidia driver is loaded with "NVreg_DynamicPowerManagement=0x02" [Where problems could occur] * on-demand mode supported after nvidia driver 450. And focal does not have nvidia driver lower than 450. * With GPU supported RTD3 not able enable runtime PM on non-laptop. But based on the Nvidia README, this case shall not happened. [Other Info] X-HWE-Bug: Bug #1946434 Changelogs: nvidia-prime (0.8.16~0.20.04.2) focal; urgency=medium [ Jeremy Szu ] * Set on-demand mode as default nvidia mode (LP: #1942307) [ Alberto Milone ] * prime-select: - Detect chassis type and enable RTD3 only on laptops (LP: #1942788). - on-demand mode doesn't need to depend on RTD3 (LP: #1942789). - Use bootvga detection when last_gfx_boot is not available. - Don't check the current profile when setting a profile (LP: #1946476). - Catch BrokenPipeError. - Use bootvga detection when last_gfx_boot is not available. nvidia-prime (0.8.16.2~0.21.04.1) hirsute; urgency=medium [ Jeremy Szu ] * Set on-demand mode as default nvidia mode (LP: #1942307) [ Alberto Milone ] * prime-select: - Detect chassis type and enable RTD3 only on laptops (LP: #1942788). - on-demand mode doesn't need to depend on RTD3 (LP: #1942789). - Use bootvga detection when last_gfx_boot is not available. - Don't check the current profile when setting a profile (LP: #1946476). 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