Correct config for sgfxi for Ubuntu with Liquorix kernel and Intel UHD Graphics 620
I recently ran sgfxi (4.26.73) to try to optimise graphics performance. The script ran OK and changed my xorg.conf from empty/nothing to:
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# Option "Composite" "disable"
# Option "RENDER" "disable"
I tried to also install smxi and run sgfxi via smxi -kiwdt as described on the site but it says my Ubuntu distro is not supported by smxi.
However since the script ran, some of my apps don't work. For example, Steam or Monero-gui. Another thing I notice is my desktop background has a bit of green random marks on it every time I boot up (but if I change desktop background, these marks disappear).
Has anyone had this experience? Is there any way to troubleshoot / improve what the script does to optimise it for this laptop?
Output from sgfxi --debugger: https://nc.nl.tab.digital/s/FZSBcaZp3accTXn
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Host: andreas-ThinkPad-T490s Kernel: 5.17.0-5.1-liquorix-amd64 arch: x86_64
bits: 64 Desktop: GNOME v: 3.36.9 Distro: Ubuntu 20.04.3 LTS (Focal Fossa)
Type: Laptop System: LENOVO product: 20NX002RUK v: ThinkPad T490s
serial: <superuser required>
Mobo: LENOVO model: 20NX002RUK v: SDK0J40697 WIN
serial: <superuser required> UEFI: LENOVO v: N2JET84W (1.62 )
ID-1: BAT0 charge: 26.5 Wh (44.8%) condition: 59.2/57.0 Wh (103.9%)
volts: 11.6 min: 11.6
Info: quad core model: Intel Core i7-8565U bits: 64 type: MT MCP cache:
L2: 1024 KiB
Speed (MHz): avg: 3806 min/max: 400/2001 cores: 1: 2120 2: 4042 3: 4098
4: 4277 5: 4246 6: 4126 7: 4212 8: 3331
Device-1: Intel UHD Graphics 620 driver: i915 v: kernel
Device-2: IMC Networks Integrated Camera type: USB driver: uvcvideo
Display: x11 server: X.Org v: 1.20.11 with: Xwayland driver: X:
loaded: intel gpu: i915 resolution: 1920x1080~60Hz
OpenGL: renderer: Mesa Intel UHD Graphics 620 (WHL GT2)
v: 4.6 Mesa 22.1.0 - kisak-mesa PPA
Device-1: Intel Cannon Point-LP High Definition Audio driver: snd_hda_intel
Sound Server-1: ALSA v: k5.17.0-5.1-liquorix-amd64 running: yes
Sound Server-2: PulseAudio v: 13.99.1 running: yes
Device-1: Intel Cannon Point-LP CNVi [Wireless-AC] driver: iwlwifi
IF: wlp0s20f3 state: up mac: dc:fb:48:34:44:6e
Device-2: Intel Ethernet I219-V driver: e1000e
IF: enp0s31f6 state: down mac: 98:fa:9b:86:52:98
Local Storage: total: 238.47 GiB used: 207.12 GiB (86.9%)
ID-1: /dev/nvme0n1 vendor: Toshiba model: N/A size: 238.47 GiB
ID-1: / size: 231.49 GiB used: 206.7 GiB (89.3%) fs: ext4 dev: /dev/dm-1
ID-2: /boot size: 703.1 MiB used: 430.6 MiB (61.2%) fs: ext4
ID-3: /boot/efi size: 511 MiB used: 5.2 MiB (1.0%) fs: vfat
ID-1: swap-1 type: file size: 4 GiB used: 1018.4 MiB (24.9%)
ID-2: swap-2 type: partition size: 976 MiB used: 0 KiB (0.0%)
System Temperatures: cpu: 40.0 C pch: 40.0 C mobo: N/A
Fan Speeds (RPM): fan-1: 0
Processes: 355 Uptime: 3h 49m Memory: 7.59 GiB used: 3.77 GiB (49.7%)
Shell: Bash inxi: 3.3.16
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Posted: May 31, 22, 12:32 techAdmin
Status: Site Admin
Joined: 26 Sep 2003
Location: East Coast, West Coast? I know it's one of them.
Just delete the xorg.conf file sgfxi created, you shouldn't have run sgfxi for intel anyway, that was useless.
sgfxi didn't really do anything, beyond maybe installing a missing intel xorg driver, so just delete the xorg.conf and restart x and it should be what it was before.
The moral here is not to use tools that you don't actually understand, the fact it was used for intel really had little point.
Note that also on ubuntu, sgfxi never gets tested, and I really would discourage use of sgfxi in general except to install nvidia drivers onto debian at this point, that's the only place that it gets any work or testing anymore.
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Doing things I don't actually understand.. Story of my life. :-)
Hopefully this post can be helpful to anyone else on Ubuntu googling around for better gaming experience.
Removing xorg.conf worked, green marks are gone and apps start as normal. Thank you!
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