Category Archives: Opinion

NVIDIA – Fix for Kernel 5.0..

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Thanks to Isaak I. Aleksandrov, there is a fix available for the latest NVIDIA driver and Kernel 5.0. See comment under previous article for details, and link to patch: http://rglinuxtech.com/?p=2476 I have applied the patch to driver 415.27, and it now compiles OK, with Kernel 5.0-rc3: ……………………….. 86_64-415.27-50/kernel/nvidia/nv-memdbg.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.27-50/kernel/nvidia/nv-ibmnpu.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.27-50/kernel/nvidia/nv-report-err.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.27-50/kernel/nvidia/nv-rsync.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.27-50/kernel/nvidia/nv-msi.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.27-50/kernel/nvidia/nv_uvm_interface.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.27-50/kernel/nvidia/nvlink_linux.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.27-50/kernel/nvidia/linux_nvswitch.o ld -r … Continue reading →

Kernel – 5.0-rc1 Released – Breaks NVIDIA and VMware..

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Kernel 5.0-rc1 is out, and brief details are here:  http://lkml.iu.edu/hypermail/linux/kernel/1901.0/02536.html Compiling NVIDIA 410.93 fails: …………………….. CC [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.93/kernel/nvidia/os-interface.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.93/kernel/nvidia/os-interface.c: In function ‘os_get_current_time’: /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.93/kernel/nvidia/os-interface.c:434:5: error: implicit declaration of function ‘do_gettimeofday’; did you mean ‘efi_gettimeofday’? [-Werror=implicit-function-declaration] do_gettimeofday(&tm); ^~~~~~~~~~~~~~~ efi_gettimeofday cc1: some warnings being treated as errors make[3]: *** [/usr/src/linux-5.0-rc1/scripts/Makefile.build:277: /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.93/kernel/nvidia/os-interface.o] Error 1 make[2]: *** [/usr/src/linux-5.0-rc1/Makefile:1553: _module_/home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.93/kernel] Error 2 make[2]: … Continue reading →

NVIDIA – Driver 415.23 – Finally, Works with Kernel 4.20..

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After the embarrassment of driver 415.22 not actually compiling with Kernel 4.20, NVIDIA have now released 415.23.    Very brief details are here:  https://www.nvidia.com/Download/driverResults.aspx/141300/en-us This version does compile with Kernel 4.20 (tested with 4.20-rc6) but shows repeated warnings: ………………………………. In file included from /home/rgadsdon/Downloads/NVIDIA-Linux-x86_64-415.23/kernel/nvidia-uvm/uvm8_gpu.h:31, from /home/rgadsdon/Downloads/NVIDIA-Linux-x86_64-415.23/kernel/nvidia-uvm/uvm8_mmu_test.c:24: /home/rgadsdon/Downloads/NVIDIA-Linux-x86_64-415.23/kernel/nvidia-uvm/uvm_linux.h:263:2: warning: #warning “atomic64_t unavailable, demoting to atomic_t!” [-Wcpp] #warning “atomic64_t unavailable, … Continue reading →

NVIDIA – New Driver, Supposed to Fix Kernel 4.20 Issues – but Doesn’t?

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NVIDIA have released driver 415.22, which is supposed to fix compile problems with Kernel 4.20.   Details are here:  https://www.nvidia.com/Download/driverResults.aspx/141072/en-us Unfortunately, this still fails to compile (tested with 4.20-rc5): ………………………….. CC [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.22/kernel/nvidia/linux_nvswitch.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.22/kernel/nvidia/linux_nvswitch.c: In function ‘nvswitch_os_snprintf_time’: /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.22/kernel/nvidia/linux_nvswitch.c:1585:5: error: implicit declaration of function ‘time_to_tm’; did you mean ‘time64_to_tm’? [-Werror=implicit-function-declaration] time_to_tm(time_nsec / NVSWITCH_NSEC_PER_SEC, 0, &t); ^~~~~~~~~~ time64_to_tm cc1: some … Continue reading →

NVIDIA – Patch Available for 415.18 – Works OK with Kernel 4.20.

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Thanks to loqs, there is now a viable patch for NVIDIA and Kernel 4.20. I applied the patch to driver 415.18, and tested with Kernel 4.20-rc3, and the driver compiles cleanly, now: ……………………… ld -r -o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.18-420/kernel/nvidia-modeset/nv-modeset-interface.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.18-420/kernel/nvidia-modeset/nvidia-modeset-linux.o Building modules, stage 2. MODPOST 4 modules CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.18-420/kernel/nvidia-drm.mod.o LD [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.18-420/kernel/nvidia-drm.ko CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.18-420/kernel/nvidia-modeset.mod.o LD [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.18-420/kernel/nvidia-modeset.ko CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.18-420/kernel/nvidia-uvm.mod.o … Continue reading →

NVIDIA – 415.18 Released – Fixes PM Problem, but Still Fails with Kernel 4.20

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NVIDIA driver 415.18 is out, and details are here:  https://www.nvidia.com/Download/driverResults.aspx/140282/en-us The good news, is that it fixes the problem with kernel power-management (PM), which is no longer required for the driver to compile/load.: ……………….. ld -r -o /home/rgadsdon/NVIDIA-Linux-x86_64-415.18/kernel/nvidia-modeset/nv-modeset-interface.o /home/rgadsdon/NVIDIA-Linux-x86_64-415.18/kernel/nvidia-modeset/nvidia-modeset-linux.o Building modules, stage 2. MODPOST 4 modules CC /home/rgadsdon/NVIDIA-Linux-x86_64-415.18/kernel/nvidia-drm.mod.o LD [M] /home/rgadsdon/NVIDIA-Linux-x86_64-415.18/kernel/nvidia-drm.ko CC /home/rgadsdon/NVIDIA-Linux-x86_64-415.18/kernel/nvidia-modeset.mod.o LD [M] /home/rgadsdon/NVIDIA-Linux-x86_64-415.18/kernel/nvidia-modeset.ko CC … Continue reading →

Kernel – 4.20-rc3 Released, OK with latest VMware, Still no NVIDIA Fix..

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Kernel 4.20-rc3 is out, and brief details are here:  http://lkml.iu.edu/hypermail/linux/kernel/1811.2/01363.html VMware 15.0.1 is still OK, but there is still no solution for NVIDIA.   I posted details of my testing to the NVIDIA Forum over a week ago, but there has been no response, so far.. Robert Gadsdon.  November 18, 2018. … Continue reading →

NVIDIA – 4.20-rc1 Fix? – More Work Needed..

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I created a combo runtime patch for NVIDIA 410.73 on Kernel 4.20-rc1, by combining the changes identified in my previous article ( see http://rglinuxtech.com/?p=2426 ) with the pm patch (see http://rglinuxtech.com/?p=2421 ). The result ran – eventually – after blanking/refreshing the display, with garbage characters at top/bottom, so all was obviously not OK.. ……………………… [ 121.826292] [drm] … Continue reading →

Kernel – 4.20-rc1 Released – OK with VMware, not with NVIDIA, and possible fix?

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Kernel 4.20-rc1 is out, and brief details are here:  http://lkml.iu.edu/hypermail/linux/kernel/1811.0/02531.html VMware 15.0 installs OK, but the latest NVIDIA fails.. (410.73 with the pm patch, if needed): …………………… /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.73-custom/kernel/nvidia/linux_nvswitch.c:1582:5: error: implicit declaration of function ‘time_to_tm’; did you mean ‘time64_to_tm’? [-Werror=implicit-function-declaration] time_to_tm(time_nsec / NVSWITCH_NSEC_PER_SEC, 0, &t); ^~~~~~~~~~ time64_to_tm ………………… I made the change to linux_nvswitch.c, and then: ………………………. /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.73-custom/kernel/nvidia-drm/nvidia-drm-gem-nvkms-memory.c:348:11: … Continue reading →