Had this issue occasionally last year on Ubuntu 20.04, but now every
single time in the past week after my laptop wakes up from sleep.
Laptop is an Asus TUF F15 gaming laptop, with an NVIDIA 2060 GPU (hybrid
graphics with Radeon Renoir GPU). CPU is an AMD Ryzen 7 4800H. NVIDIA
driver 460.91.03.
Public bug reported:
My Ubuntu (14.04 LTS) desktop used to have an Intel 6700K CPU and I have
been using the built in HD Graphics 530 GPU to drive 3 external displays
- via DP, HDMI and DVI on the motherboard (AsRock Extreme4).
at some point, I upgraded the CPU to an Intel 7700K, and I realized
the pixelated/garbled text in Java applications (particularly severe on
remote java applications) appears to be caused by bugs in the xorg intel
driver for the default SNA acceleration method, see
https://www.mathworks.com/matlabcentral/answers/271637-matlab-starts-but-looks-weird-arch-linux
I have similar issues with Xubuntu 14.04 LTS with HWE (kernel 4.4.0-66)
and Intel Graphics (Skylake i7-6700k with HD 530 GPU).
In my below screen capture, I show a matlab window started on a remote
machine via "ssh -Y" (left), and the same matlab started on the local
machine (right).
You can see
had the same issue after upgrading to lucid last night.
the workaround in #8 failed the same way.
Error message:
(Reading database ... 385568 files and directories currently installed.)
Unpacking fglrx (from .../fglrx_2%3a8.723.1-0ubuntu3_i386.deb) ...
[Warning] Uninstall : inst_path_default
I found a workaround: I manually deleted the folder /usr/share/ati and
now fglrx can be installed.
please bump the priority of this bug, it will effect a great number of
people once Lucid is released without fixing this.
--
package fglrx (not installed) failed to install/upgrade: subprocess new
this was solved by a fresh installation. I am now closing the bug.
** Changed in: linux-restricted-modules-2.6.24 (Ubuntu)
Status: New = Invalid
--
X enable to start after upgrading to 9.04 (fglrx driver issue)
https://bugs.launchpad.net/bugs/363955
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