Hi,

I have the same error.
Fortunately, the display/card seem to work, it is just the error is there.
Would the patch be part of the Ubuntu 18.04 LTS?
I'm adding my tech. details here, if that helps:


# dmesg part:
[    2.772725] radeon 0000:02:00.0: failed VCE resume (-110).
[    2.772729] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    2.772730] [drm] Driver supports precise vblank timestamp query.
[    2.772731] radeon 0000:02:00.0: radeon: MSI limited to 32-bit
[    2.772762] radeon 0000:02:00.0: radeon: using MSI.
[    2.772781] [drm] radeon: irq initialized.
[    2.914327] [drm] ring test on 0 succeeded in 2 usecs
[    2.914330] [drm] ring test on 1 succeeded in 1 usecs
[    2.914333] [drm] ring test on 2 succeeded in 1 usecs
[    2.914339] [drm] ring test on 3 succeeded in 3 usecs
[    2.914344] [drm] ring test on 4 succeeded in 3 usecs
[    4.082192] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!!
[    5.094228] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!!
[    6.106253] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!!
[    7.118290] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!!
[    8.130322] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!!
[    9.142322] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!!
[   10.154347] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!!
[   11.166363] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!!
[   12.178383] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!!
[   13.190399] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, trying to reset the VCPU!!!
[   13.210256] [drm:uvd_v1_0_start [radeon]] *ERROR* UVD not responding, giving up!!!
[   13.210259] radeon 0000:02:00.0: failed initializing UVD (-1).
[   13.210459] [drm] ib test on ring 0 succeeded in 0 usecs
[   13.210488] [drm] ib test on ring 1 succeeded in 0 usecs


$ dpkg -l linux-firmware
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                                    Version                  Architecture             Description
+++-=======================================-========================-========================-==================================
ii  linux-firmware                          1.173.16                 all                      Firmware for Linux kernel drivers

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.4 LTS
Release:	18.04
Codename:	bionic

$ lspci | grep -i vga
02:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Oland PRO [Radeon R7 240/340]

$ cat /etc/default/grub
...
GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""


Thanks,
Csaba