| alkisg | I'm trying to troubleshoot an issue where modesettting+glamor results in xorg crashes with "GLSL 1.30 is not supported". I initially reported it there, before realizing it's a xorg issue: https://github.com/mate-desktop/marco/issues/734 | 09:35 |
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| alkisg | Question, is there a way in Ubuntu 22.04 to test if this problem has been solved in xorg-edge? If yes, I can ignore it as we already have a workaround with Driver "Intel". | 09:35 |
| tjaalton | it happens with crocus, use i965 and you're fine | 09:36 |
| tjaalton | or wayland session | 09:37 |
| alkisg | Thank you tjaalton , can I somehow detect when the problem will happen before it happens, so that I automate the workaround in many many schools, instead of waiting for the teachers to report each breakage separately? | 09:37 |
| tjaalton | dunno | 09:38 |
| tjaalton | you don't need crocus, just use i965 then? | 09:38 |
| alkisg | I'm not sure about the terminology, I guess you mean "put driver=intel in xorg.conf", right? Sure if it's stable for all ranges of intel graphics cards, I don't mind focing that for all schools | 09:39 |
| alkisg | We can't use wayland as we have old clients so we're using MATE (no proper wayland support there yet) | 09:39 |
| alkisg | Is there some way to detect the opengl version (like glxinfo|grep version) before xorg runs? Then I could check if it's less than e.g. version 3.00, and use the workaround just there | 09:40 |
| tjaalton | install libgl1-amber-dri, which has i965_dri.so | 09:41 |
| tjaalton | hmm it's probably installed already, not sure how to pick i965 over crocus | 09:41 |
| tjaalton | or use intel ddx | 09:42 |
| alkisg | OK I think I understood what you mean, I'll research on how to prefer i965 over crocus | 09:42 |
| alkisg | Is there a replacement to the xorg-edgers ppa? https://launchpad.net/~xorg-edgers/+archive/ubuntu/ppa/+packages | 09:42 |
| alkisg | For overriding, maybe this one: MESA_LOADER_DRIVER_OVERRIDE=i915. Btw a workaround that I tested and works was this one: xserver-command=env MESA_GL_VERSION_OVERRIDE=2.1 X in lightdm.conf | 09:46 |
| alkisg | Thanks! | 09:47 |
| alkisg | But that's too specific as I need to run xorg and glxinfo first to get the supported GL version; the i915 workaround will be much easier if it works | 09:47 |
| * alkisg also found this one and puts it in his TODO/test list... https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers | 09:50 | |
| tjaalton | sarvatt left 5y ago, he maintained edgers | 10:09 |
| tjaalton | xserver git is rather uninteresting to follow | 10:10 |
| alkisg | Sorry I don't know enough about the internals there; I guess the changes are in mesa, not in xorg, and I should be testing newer versions of mesa to see if I need to report it upstream or not... | 10:18 |
| tjaalton | no it's a glamor bug | 10:18 |
| tjaalton | aiui | 10:18 |
| tjaalton | at least it's not fixed in 22.2 | 10:19 |
| tjaalton | probably wouldn't hurt to file it against crocus in mesa, at least there are folks looking | 10:19 |
| tjaalton | because the bug makes crocus look bad | 10:21 |
| alkisg | Thank you, I'll process all that. I also finally found some clients that consistently get the issue in a nearby school, so I'll be able to provide feedback more easily | 10:22 |
| tjaalton | start gimp | 10:22 |
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