Acer Aspire A515-41G-T48Q, Problems and question about bios and acpi

tuxutkutuxutku Member Posts: 10

Tinkerer

I am currently using Xubuntu 18.10 and Manjaro on my computer, but for trouble shooting i have a separate windows 10 october version with graphics drivers installed from Acer website https://www.acer.com/ac/en/GB/content/support-product/7298?b=1 , i also downloaded bios from there too.

Currently at old 4.16 kernel, xubuntu work out-of-the box with all features and graphics acceleration is perfect (benchmarked)

Currently i have 1.09 version of bios and it has a problem with allocating too much memory to decided graphics card:

[email protected]:~$ glxinfo -B
As seen integrated graphics card have 1024mb of ram

[email protected]:~$ dmesg | grep -i memory:
And only 7gb of ram reversed to operating system, the same problem happens with windows too where total ram is shown as 6.8gb
I also found someone else having the same problem with the same bios version: https://www.technopat.net/sosyal/konu/acer-a515-41g-bios-ram-sorunu.656525/

I also had a gpu related problem here (this doesn't necessarily enter to acer support, but its for informing): https://bugzilla.kernel.org/show_bug.cgi?id=201077
I bisected the kernel and reported the problem to amd,amd got the bug report and probably going to do something about it, but its possible that buggy acpi code in bios can also be causing these issues. So i have questions:
Which operating system bios acpi currently supports most? (for spoofing purposes)
Can i obtain the acpi table?
Will there be a fix, or memory configuration setting added to the bios?

Also people at https://www.technopat.net/sosyal/konu/acer-a515-41g-t48q-alinir-mi.511255/page-3 complain about weird graphics drivers on windows which i can confirm is very buggy and doesn't allow graphics card selection, its not a problem for me since i only use linux but i just wanted to tell.

Have a nice day!

FAQ & Answers

  • egydiocoelhoegydiocoelho ACE Posts: 59,005 Trailblazer
    Oi! Eu não sou sou a cortana! Mas estou aqui para ajudar! Hi! I'm not the cortana! But I'm here to help!
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  • tuxutkutuxutku Member Posts: 10

    Tinkerer

    edited April 2019
    I tried and and it only caused glitches, my problem is not about cpu or booting at all, its about RX 540 gpu.
    as i bisected: https://github.com/torvalds/linux/commit/e1deba285156fb4023bb48f22068de5b60e34e15 is the responsible commit and they start to use amdgpu acpi helper functions and remove the old one, i will try to re-implement older one to modern kernel and try my chance, And this is can be a problem related to amd.
    For bios, i will just overwrite it since it fixed the case on other user.
    Thanks for the help anyways!


  • tuxutkutuxutku Member Posts: 10

    Tinkerer

    Btw the kernel regression is fixed bu 5.3.0-rc1 https://bugzilla.kernel.org/show_bug.cgi?id=201077 , bios problem is not yet resolved, an option to select integrated gpu ram amount with warranty warning would be great 
  • How much dedicated memory is being allocated to the video card?
    Oi! Eu não sou sou a cortana! Mas estou aqui para ajudar! Hi! I'm not the cortana! But I'm here to help!
    Se você gostou da minha resposta, marque como solução clicando em sim! If you liked my answer, mark it as a solution by clicking on yes!
    Aceite somente a resposta que ajudou a solucionar o seu problema! Please accept only the response that helped to solve your problem!
    Detection tool click here to find the serial number or partnumber of your model!                                                          

               
      egydiocoelho Trailblazer
     
    ProductKey clique aqui para descobrir o serial do windows! click here to discover the windows serial!
    Para usuários da comunidade inglesa, espanhola, francesa e alemã, usarei o google tradutor! :)
    For users of the English, Spanish, French and German community, I will be using google translator! :) 
  • tuxutkutuxutku Member Posts: 10

    Tinkerer

    1024 mb    
  • Is this memory dedicated or shared?
    Oi! Eu não sou sou a cortana! Mas estou aqui para ajudar! Hi! I'm not the cortana! But I'm here to help!
    Se você gostou da minha resposta, marque como solução clicando em sim! If you liked my answer, mark it as a solution by clicking on yes!
    Aceite somente a resposta que ajudou a solucionar o seu problema! Please accept only the response that helped to solve your problem!
    Detection tool click here to find the serial number or partnumber of your model!                                                          

               
      egydiocoelho Trailblazer
     
    ProductKey clique aqui para descobrir o serial do windows! click here to discover the windows serial!
    Para usuários da comunidade inglesa, espanhola, francesa e alemã, usarei o google tradutor! :)
    For users of the English, Spanish, French and German community, I will be using google translator! :) 
  • tuxutkutuxutku Member Posts: 10

    Tinkerer

    carrizo gpu (integrated gpu) takes 1gb of ram from system memory (bios allocates it), Dedicated gpu has its own memory.
  • tuxutkutuxutku Member Posts: 10

    Tinkerer

    @egydiocoelho having Advanced settings unlocked would let me fix this issue, also cpu throttling. I now what happens with a custom bios (my laptop is already modified a lot so i don't think and care about warranty anyways).
    From what i have seen from internet, some stock bios versions on some curtain laptop models expose advanced settings via a "secret" key combination. It would be great to have a feature like that.
  • Unlocking bios here in the community is not allowed. You may be able to get some information from bios-mods or winraid.
    Oi! Eu não sou sou a cortana! Mas estou aqui para ajudar! Hi! I'm not the cortana! But I'm here to help!
    Se você gostou da minha resposta, marque como solução clicando em sim! If you liked my answer, mark it as a solution by clicking on yes!
    Aceite somente a resposta que ajudou a solucionar o seu problema! Please accept only the response that helped to solve your problem!
    Detection tool click here to find the serial number or partnumber of your model!                                                          

               
      egydiocoelho Trailblazer
     
    ProductKey clique aqui para descobrir o serial do windows! click here to discover the windows serial!
    Para usuários da comunidade inglesa, espanhola, francesa e alemã, usarei o google tradutor! :)
    For users of the English, Spanish, French and German community, I will be using google translator! :) 
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