Also filed with Red Hat: https://bugzilla.redhat.com/show_bug.cgi?id=1400360 Description of problem: When using a web browser (Firefox, Chromium) or any application like a terminal, the active window, while using the Cinnamon desktop occasionally blinks or flashes. The active window (except for its borders) will briefly turn black for a microsecond, then the window appears normal again. The monitor is a Sceptre X9, 19-inch LCD, the default resolution is 1280x1024 and cannot go beyond that setting. The Cinnamon maintainer for Red Hat informed me that it is a bug in the driver, the PC is using the 'radeon' driver, per the information below. How reproducible: Launch Cinnamon desktop and use a web browser, any application, or a terminal. Display will occasionally blink/flash. Additional info: I also have the MATE desktop installed and the active window while using MATE does not blink or flash, this only occurs with Cinnamon. With other monitor resolutions that are selectable, also while using Cinnamon, the active window also blinks/flashes at those resolutions as well. This began with Fedora 25, it did not occur with Fedora 24 and earlier versions. However, on a 32-bit ThinkPad T43 laptop with a finer resolution than 1280x1024, also with Fedora 25 running, the active window does not blink or flash while using Cinnamon on the laptop. The laptop also uses the 'radeon' driver. Version of driver installed: xorg-x11-drv-ati-7.7.1-1.20160928git3fc839ff.fc25.x86_64 Output of 'lspci -v' from the 64-bit computer in question: 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] RS780 Host Bridge Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 0, NUMA node 0 Capabilities: <access denied> 00:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] RS780/RS880 PCI to PCI bridge (int gfx) (prog-if 00 [Normal decode]) Flags: bus master, 66MHz, medium devsel, latency 64, NUMA node 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=64 I/O behind bridge: 0000c000-0000cfff Memory behind bridge: fe800000-fe9fffff Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff Capabilities: <access denied> Kernel modules: shpchp 00:07.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] RS780/RS880 PCI to PCI bridge (PCIE port 3) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0, IRQ 24, NUMA node 0 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 0000d000-0000dfff Memory behind bridge: fea00000-feafffff Prefetchable memory behind bridge: 00000000fde00000-00000000fdefffff Capabilities: <access denied> Kernel driver in use: pcieport Kernel modules: shpchp 00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] (prog-if 01 [AHCI 1.0]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 22, NUMA node 0 I/O ports at b000 [size=8] I/O ports at a000 [size=4] I/O ports at 9000 [size=8] I/O ports at 8000 [size=4] I/O ports at 7000 [size=16] Memory at fe7ffc00 (32-bit, non-prefetchable) [size=1K] Capabilities: <access denied> Kernel driver in use: ahci 00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16, NUMA node 0 Memory at fe7fe000 (32-bit, non-prefetchable) [size=4K] Kernel driver in use: ohci-pci 00:12.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0 USB OHCI1 Controller (prog-if 10 [OHCI]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16, NUMA node 0 Memory at fe7fd000 (32-bit, non-prefetchable) [size=4K] Kernel driver in use: ohci-pci 00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 17, NUMA node 0 Memory at fe7ff800 (32-bit, non-prefetchable) [size=256] Capabilities: <access denied> Kernel driver in use: ehci-pci 00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18, NUMA node 0 Memory at fe7fc000 (32-bit, non-prefetchable) [size=4K] Kernel driver in use: ohci-pci 00:13.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0 USB OHCI1 Controller (prog-if 10 [OHCI]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18, NUMA node 0 Memory at fe7f7000 (32-bit, non-prefetchable) [size=4K] Kernel driver in use: ohci-pci 00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 19, NUMA node 0 Memory at fe7ff400 (32-bit, non-prefetchable) [size=256] Capabilities: <access denied> Kernel driver in use: ehci-pci 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller (rev 3c) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: 66MHz, medium devsel, NUMA node 0 Capabilities: <access denied> Kernel driver in use: piix4_smbus Kernel modules: i2c_piix4, sp5100_tco 00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, slow devsel, latency 64, IRQ 16, NUMA node 0 Memory at fe7f0000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 LPC host controller Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 0, NUMA node 0 00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI Bridge (prog-if 01 [Subtractive decode]) Flags: bus master, 66MHz, medium devsel, latency 64, NUMA node 0 Bus: primary=00, secondary=04, subordinate=04, sec-latency=64 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor HyperTransport Configuration Flags: fast devsel, NUMA node 0 Capabilities: <access denied> 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor Address Map Flags: fast devsel, NUMA node 0 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor DRAM Controller Flags: fast devsel, NUMA node 0 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor Miscellaneous Control Flags: fast devsel, NUMA node 0 Capabilities: <access denied> Kernel driver in use: k10temp Kernel modules: k10temp 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor Link Control Flags: fast devsel, NUMA node 0 01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS780L [Radeon 3000] (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, fast devsel, latency 0, IRQ 18, NUMA node 0 Memory at d0000000 (32-bit, prefetchable) [size=256M] I/O ports at c000 [size=256] Memory at fe9f0000 (32-bit, non-prefetchable) [size=64K] Memory at fe800000 (32-bit, non-prefetchable) [size=1M] [virtual] Expansion ROM at 000c0000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: radeon Kernel modules: radeon 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06) Subsystem: TP-LINK Technologies Co., Ltd. TG-3468 Gigabit PCI Express Network Adapter Flags: bus master, fast devsel, latency 0, IRQ 25, NUMA node 0 I/O ports at d800 [size=256] Memory at feaff000 (64-bit, non-prefetchable) [size=4K] Memory at fdefc000 (64-bit, prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: r8169 Kernel modules: r8169
Please attach the Xorg log file and the output of dmesg and glxinfo corresponding to the problem.
Created attachment 128383 [details] Output of dmesg OUtput of dmesg
Created attachment 128384 [details] Xorg.0.log Xorg.0.log file
Created attachment 128385 [details] Output of glxinfo Output of glxinfo
I sm scrolling through the Xorg.0.log file using LibreOffice right now and during the scrolling, the window flashed/blinked several times. I was able to notice that the entire window (including the borders) flashed/blinked, not just the inside of the window.
Any chance you can make a video showing the problem?
Created attachment 128395 [details] Video of window flashing - scrolling through document using LibreOffice.
Created attachment 128401 [details] Longer video - has multiple flashes A longer video, displaying multiple flashes.
Created attachment 131241 [details] Pols12 output of dmesg I encounter the same issue. I attach my output of dmesg. pols12@asus-deb:~$ lspci -vnnk | grep VGA -A 10 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] RV710/M92 [Mobility Radeon HD 4530/4570/545v] [1002:9553] (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Mobility Radeon HD 4570 [1043:1b42] Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at c0000000 (32-bit, prefetchable) [size=512M] I/O ports at d800 [size=256] Memory at fdef0000 (32-bit, non-prefetchable) [size=64K] Expansion ROM at 000c0000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: radeon Kernel modules: radeon
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