Arch Linux

newbie arch

Member

Registered: 2022-10-21

Posts: 1

Display Compositor

NEW USER NEED HELP/ASSIST

I have installed Arch Linux with Kde Plasma on my laptop and desktop both

Laptop has amd cpu and it has smooth graphics and animations kde effects works well and no issue on audio,video,game

whereas Desktop has intel cpu it does not support kde effects , smooth video and performance lags

After searching for hours i found that OpenGL is responsible for it, so i disabled the compositor on desktop and things were working quiet fine but it left some black strip at bottom and no animation/effects

I have almost same specification on both devices:

Kernel: 5.15.72-1-lts

Plasma 5.25.5

Ram: 2gb

Laptop CPU Specification:

Architecture:            x86_64
  CPU op-mode(s):        32-bit, 64-bit
  Address sizes:         40 bits physical, 48 bits virtual
  Byte Order:            Little Endian
CPU(s):                  2
  On-line CPU(s) list:   0,1
Vendor ID:               AuthenticAMD
  Model name:            AMD A4-3330MX APU with Radeon(tm) HD Graphics
    CPU family:          18
    Model:               1
    Thread(s) per core:  1
    Core(s) per socket:  2
    Socket(s):           1
    Stepping:            0
    Frequency boost:     enabled
    CPU(s) scaling MHz:  36%
    CPU max MHz:         2200.0000
    CPU min MHz:         800.0000
    BogoMIPS:            4392.02
    Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
                         cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mm
                         xext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_t
                         sc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf
                          pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic c
                         r8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs sk
                         init wdt cpb hw_pstate vmmcall arat npt lbrv svm_lock nri
                         p_save pausefilter
Virtualization features:
  Virtualization:        AMD-V
Caches (sum of all):     
  L1d:                   128 KiB (2 instances)
  L1i:                   128 KiB (2 instances)
  L2:                    2 MiB (2 instances)
NUMA:                   
  NUMA node(s):          1
  NUMA node0 CPU(s):     0,1
Vulnerabilities:         
  Itlb multihit:         Not affected
  L1tf:                  Not affected
  Mds:                   Not affected
  Meltdown:              Not affected
  Mmio stale data:       Not affected
  Retbleed:              Not affected
  Spec store bypass:     Not affected
  Spectre v1:            Mitigation; usercopy/swapgs barriers and __user pointer s
                         anitization
  Spectre v2:            Mitigation; Retpolines, STIBP disabled, RSB filling, PBRS
                         B-eIBRS Not affected
  Srbds:                 Not affected
  Tsx async abort:       Not affected

Laptop OpenGL:

OpenGL version string: 3.1 Mesa 22.1.7

Desktop CPU Specification:

Architecture:            x86_64
  CPU op-mode(s):        32-bit, 64-bit
  Address sizes:         36 bits physical, 48 bits virtual
  Byte Order:            Little Endian
CPU(s):                  2
  On-line CPU(s) list:   0,1
Vendor ID:               GenuineIntel
  Model name:            Pentium(R) Dual-Core  CPU      E5500  @ 2.80G
                         Hz
    CPU family:          6
    Model:               23
    Thread(s) per core:  1
    Core(s) per socket:  2
    Socket(s):           1
    Stepping:            10
    CPU(s) scaling MHz:  43%
    CPU max MHz:         2800.0000
    CPU min MHz:         1200.0000
    BogoMIPS:            5584.33
    Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep m
                         trr pge mca cmov pat pse36 clflush dts acpi m
                         mx fxsr sse sse2 ht tm pbe syscall nx lm cons
                         tant_tsc arch_perfmon pebs bts rep_good nopl
                         cpuid aperfmperf pni dtes64 monitor ds_cpl vm
                         x est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm
                         pti tpr_shadow vnmi flexpriority vpid dtherm
Virtualization features:
  Virtualization:        VT-x
Caches (sum of all):     
  L1d:                   64 KiB (2 instances)
  L1i:                   64 KiB (2 instances)
  L2:                    2 MiB (1 instance)
NUMA:                   
  NUMA node(s):          1
  NUMA node0 CPU(s):     0,1
Vulnerabilities:         
  Itlb multihit:         KVM: Mitigation: VMX disabled
  L1tf:                  Mitigation; PTE Inversion; VMX EPT disabled
  Mds:                   Vulnerable: Clear CPU buffers attempted, no m
                         icrocode; SMT disabled
  Meltdown:              Mitigation; PTI
  Mmio stale data:       Unknown: No mitigations
  Retbleed:              Not affected
  Spec store bypass:     Vulnerable
  Spectre v1:            Mitigation; usercopy/swapgs barriers and __us
                         er pointer sanitization
  Spectre v2:            Mitigation; Retpolines, STIBP disabled, RSB f
                         illing, PBRSB-eIBRS Not affected
  Srbds:                 Not affected
  Tsx async abort:       Not affected

Desktop OpenGL Mesa-Amber:

OpenGL version string: 1.4 Mesa 21.3.9 Amber

Desktop OpenGL Mesa:

libGL error: MESA-LOADER: failed to open i915: /usr/lib/dri/i915_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib/dri, suffix _dri)
libGL error: failed to load driver: i915
OpenGL version string: 4.5 (Compatibility Profile) Mesa 22.1.7

Sorry for bad uploading of text & language inglish
I have uploaded same issue on r/arch but it is unreviewed to be post
Here is the draft : https://www.reddit.com/user/Helpful_Ini … 99069be655

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,261

Re: Display Compositor

That CPU/GPU is too old and doesn't meet the minimum requirements to provide the necessary acceleration. Your "best" bet is to use https://wiki.archlinux.org/title/Intel_ … 915_driver to lie about your capabilities that might however still work better, or generally avoid using a heavy environment that relies on acceleration, like some standalone WMs or so.

Your AMD CPU is a full year newer which might have just been the tipping point (... and generally intels igpu were horrendous before the HD/i* series)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 76,461

Re: Display Compositor

The APUs were generally ahead  of the GMCHs, even year for year.
Since it's a desktop, buy the cheapest passive GPU of today and put that into the desktop - you'll get abysmally more performance from that, notably if there's an PCIe16 slot.

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