Ubuntu Expands Its Kernel Uploader Team

[phoronix]

Phoronix: Ubuntu Expands Its Kernel Uploader Team

As a sign of the times with the Linux kernel being affected by an increasing number of CVEs (and particularly high profile ones at that), there are now more Ubuntu developers with upload rights for sending down new kernel upgrades...

http://www.phoronix.com/scan.php?page=news_item&px=Ubuntu-More-Kernel-Uploaders

[Jabberwocky]

I wish AMD also did this, many people who paid good money are still experiencing problems with their Ryzen (AM4 and TR4) CPUs and no official support or bug tracker from them. They are just leaving 100s of people to struggle and repair broken filesystems and corrupt databases.

/rant

[DarkFoss]

Nice.
Hopefully one of them can find the ON switch and restore Freesync . It's been disabled on Ubuntu Mainline kernels since 5.1_rc3..the new 5.2_rc1 is no exception.

[L_A_G]

I get the feeling this has less to do with more CVEs being brought forward and more about Canonical's stated focus on IoT and other network connected devices where security obviously is a bigger concern.

[DarkFoss]

There is no kernel config for freesync. Se man amdgpu how to enable freesync. Freesync consist of patches and I doubt ubuntu have reverted them.

https://patchwork.kernel.org/cover/10674411/

https://freedesktop.org/wiki/Software/systemd/Optimizations/

"16. Don't use debug kernels. Debug kernels are slow".

Use a non debug 1000Hz timer AMD wip kernel.
https://cgit.freedesktop.org/~agd5f/...m-next-5.3-wip

Sadly Ubuntu appears to have done just that. As a matter of fact they removed both freesync and vrr in 5.1_rc3 restored just vrr in 5.1_rc4.
The drm-tip line is also affected as well as the daily's. Atleast I have MBAB's kernel for working freesync.

$ uname -a
Linux  5.2.0-050200rc1-generic #201905191930 SMP Sun May 19 23:34:37 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

$ DISPLAY=:0 xrandr --prop
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
DisplayPort-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 519mm x 293mm
       EDID:  
               00ffffffffffff0004722a0654031084
               291c0104a5341e783bdcf1a655519d26
               0e5054bfef8081c08140818090409500
               a940b300a9c0fb7e8088703812401820
               350007252100001e000000ff00544244
               4141303032333930300a000000fd0030
               90b4b422010a202020202020000000fc
               004544323432515220410a20202001a4
               020323f150010304050790121314161f
               2021223f40230907078301000065030c
               001000fe5b80a0703835403020350056
               502100001e866f80a070384040302035
               0056502100001e023a801871382d4058
               2c350056502100001e8c0ad08a20e02d
               10103e9600565021000018011d007251
               d01e206e28550056502100001e000083
       GAMMA_LUT_SIZE: 4096  
               range: (0, -1)
       DEGAMMA_LUT_SIZE: 4096  
               range: (0, -1)
       GAMMA_LUT: 0  
               range: (0, 65535)
       CTM: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0  
               0 1  
       DEGAMMA_LUT: 0  
               range: (0, 65535)
       TearFree: auto  
               supported: off, on, auto
       vrr_capable: 1  
               range: (0, 1)
       max bpc: 8  
               range: (8, 16)
       underscan vborder: 0  
               range: (0, 128)
       underscan hborder: 0  
               range: (0, 128)
       underscan: off  
               supported: off, on, auto
       scaling mode: None  
               supported: None, Full, Center, Full aspect
       link-status: Good  
               supported: Good, Bad
       CONNECTOR_ID: 59  
               supported: 59
       non-desktop: 0  
               range: (0, 1)
  1920x1080    144.00*+ 120.00   100.00   119.88   119.98    99.93    60.00    60.00    50.00    59.94    30.00    25.00    24.00    29.97    23.98   
  1600x1200     60.00   
  1680x1050     59.95   
  1400x1050     59.98   
  1600x900      60.00   
  1280x1024     75.02    60.02   
  1440x900      59.89   
  1280x960      60.00   
  1280x800     144.00   
  1152x864      75.00   
  1280x720      60.00    50.00    59.94   
  1024x768      75.03    70.07    60.00   
  832x624       74.55   
  800x600       72.19    75.00    60.32    56.25   
  720x576       50.00   
  720x480       60.00    59.94   
  640x480       75.00    72.81    66.67    60.00    59.94   
  720x400       70.08

:~$ DISPLAY=:0 xrandr --output DisplayPort-0 --set "freesync" 1
X Error of failed request:  BadName (named color or font does not exist)
 Major opcode of failed request:  140 (RANDR)
 Minor opcode of failed request:  11 (RRQueryOutputProperty)
 Serial number of failed request:  43
 Current serial number in output stream:  43