Your message dated Wed, 14 Apr 2021 20:44:12 +0200
with message-id <[email protected]>
and subject line Re: Bug#986970: qgis: QGIS cannot detect installed OpenCL
drivers unless `ocl-icd-opencl-dev` package is installed
has caused the Debian Bug report #986970,
regarding qgis: QGIS cannot detect installed OpenCL drivers unless
`ocl-icd-opencl-dev` package is installed
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
986970: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=986970
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: qgis
Version: 3.10.14+dfsg-1
Severity: normal
Dear Maintainer,
I tried to enable OpenCL acceleration on QGIS options menu by going to
"Settings -> Options -> Acceleration" and toggling the "Enable OpenCL
Acceleration" menu option.
At first, this failed with a message that it could not find the appropriate
drivers. After installing the `mesa-opencl-icd` package, which enabled OpenCL
for my GPU in other applications, QGIS still failed to detect the drivers.
After some digging, I found that QGIS was trying to dlopen `libOpenCL.so` in
several locations, but the `ocl-icd-libopencl1` package installed by `mesa-
opencl-icd` only provided `libOpenCL.so.1`.
Symlinking `libOpenCL.so.1` to `libOpenCL.so` fixes the issue, and this is
provided by the `ocl-icd-opencl-dev` package.
I suggest that this package is either added to the QGIS package suggestions or
the error message within QGIS is updated to suggest installing it.
Best regards,
P.
-- System Information:
Debian Release: bullseye/sid
APT prefers testing-security
APT policy: (500, 'testing-security'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 5.10.0-5-amd64 (SMP w/8 CPU threads)
Kernel taint flags: TAINT_WARN
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8),
LANGUAGE=en_GB:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages qgis depends on:
ii libc6 2.31-11
ii libgcc-s1 10.2.1-6
ii libgdal28 3.2.1+dfsg-1+b1
ii libgeos-c1v5 3.9.0-1
ii libgsl25 2.6+dfsg-2
ii libqgis-analysis3.10.14 3.10.14+dfsg-1
ii libqgis-app3.10.14 3.10.14+dfsg-1
ii libqgis-core3.10.14 3.10.14+dfsg-1
ii libqgis-gui3.10.14 3.10.14+dfsg-1
ii libqt5core5a 5.15.2+dfsg-5
ii libqt5gui5 5.15.2+dfsg-5
ii libqt5keychain1 0.10.0-1
ii libqt5network5 5.15.2+dfsg-5
ii libqt5sql5 5.15.2+dfsg-5
ii libqt5webkit5 5.212.0~alpha4-11
ii libqt5widgets5 5.15.2+dfsg-5
ii libqt5xml5 5.15.2+dfsg-5
ii libstdc++6 10.2.1-6
ii ocl-icd-libopencl1 [libopencl1] 2.2.14-2
ii python3-qgis 3.10.14+dfsg-1
ii qgis-common 3.10.14+dfsg-1
ii qgis-providers 3.10.14+dfsg-1
ii qt5-image-formats-plugins 5.15.2-2
Versions of packages qgis recommends:
ii qgis-plugin-grass 3.10.14+dfsg-1
Versions of packages qgis suggests:
pn gpsbabel <none>
--- End Message ---
--- Begin Message ---
tags 986970 upstream wontfix
thanks
On 4/14/21 7:57 PM, Pedro Ângelo wrote:
> After some digging, I found that QGIS was trying to dlopen `libOpenCL.so` in
> several locations, but the `ocl-icd-libopencl1` package installed by `mesa-
> opencl-icd` only provided `libOpenCL.so.1`.
>
> Symlinking `libOpenCL.so.1` to `libOpenCL.so` fixes the issue, and this is
> provided by the `ocl-icd-opencl-dev` package.
>
> I suggest that this package is either added to the QGIS package suggestions or
> the error message within QGIS is updated to suggest installing it.
Adding a runtime dependency on a -dev package is not appropriate.
libqgis-analysis & libqgis-app have libOpenCL.so.1 in their NEEDED
section so it seems to be properly linked in version 3.16.x
QGIS 3.10.x is EOL so don't expect this issue to get fixed upstream. Use
qgis from experimental instead.
Kind Regards,
Bas
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--- End Message ---
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